ProTek Devices exhibited at Electronica 2014 which took place last week in Munich. Electronica is arguably known as one of the world’s largest international trade shows for electronics components. Many companies exhibit solutions for industries that include consumer electronics, automotive, industrial, embedded, wireless, medical, and more.
At the show, ProTek Devices exhibited a range of overvoltage circuit protection solutions. Such devices included the PLR0502, PL0524P, SRV25.4, and others that provide protection for USB 2.0/3.0, HDMI, Ethernet, and more. In addition, at the show, ProTek Devices debuted a new electrostatic discharge (ESD) circuit protection diode for industrial applications. Such applications include assembly line automation, access control systems, machinery, and more. The new component is the PESD2CAN. It’s designed to protect two industrial Controller Area Network (CAN) bus lines from ESD and other electrical fast transients (EFT).
ProTek Devices’ PESD2CAN is also ideal for circuit protection in other industrial applications such as those using DeviceNet bus lines. ESD protection is > 25 kilovolts. The new component is compatible with IEC standards 61000-4-2 (ESD): air 15kV, contact 8kV; with 61000-4-4 (EFT): 40A, 5/50ns; and with 61000-4-5 (surge): 4A, 8/20 micro seconds. It features 200 watts of peak pulse power per line (typical = 8/20 micro seconds). In addition, the PESD2CAN provides a low clamping voltage, low capacitance, and low leakage current. It is also compliant with the RoHS and REACH standards. Read the full press release and get more information here.
ProTek Devices’ Ian Doyle contributed an article to EE Journal that was published Nov. 4, 2014. An excerpt follows and the full article can be read at EE Journal…
Overvoltage Protection in High Speed Communication Ports
by Ian Doyle, ProTek Devices
Editor’s Note: While Amelia’s Halloween Fish Fry had us all running out and gleefully building our own singing Tesla coils, and even though shuffling quietly across the carpet and sending a bright 10,000-volt arc from your fingertip to a napping family member can be a barrel of laughs, there are times where we most definitely do not find electrostatic discharge so amusing. The first of those, of course, is when we ARE the sleeping family member. Sheesh, what an insensitive prank!
But, a second scenario where we do not welcome the effect of high-voltage static discharge events is when we’re designing high-speed communications circuits. Getting your Ethernet port zapped with a 10kV ESD is far from fun – especially for the Ethernet port. But, how do we help our circuits protect themselves? Ian Doyle of ProTek devices has some very helpful suggestions.
–Kevin Morris, Editor-in-Chief
Transmission data rates continue to grow and grow to meet consumer demands for multimedia rich content, such as streaming video. In turn, whether in the home or at the backend, Ethernet connectivity also continues its widespread use. As a result, and more than ever, electrostatic discharge (ESD) transient threats pose challenges to system designers to incorporate overvoltage protection that doesn’t impact performance.
The International Electro-technical Commission (IEC) has defined a Human Body Model (HBM) ESD event. The intent is to guide designers in implementing adequate protection in their electrostatic applications. The IEC defined the HBM ESD discharge impulse, with four levels in standard 61000-4-2. It has a rise time of less than 1 ns and decay time of 60 ns.
As a system requirement, the four levels of IEC 61000-4-2 cover up to ±8 kV contact / ±15 kV air discharges for ESD transients in systems. In some applications a higher level is specified for enhanced contact and air discharge specifications. This is because human body models can reach ±25 kV in static-rich environments. Read more.
The PSDxxHP series of transient voltage suppressors (TVS arrays) from ProTek Devices have an updated data sheet. The 1000 watt (peak pulse power per line [tp = 8/20 micro seconds]) series includes three devices: the PSD05HP, PSD10HP, and PSD12HP. The components have rated stand-off voltages of 5.0, 10.0, and 12.0 volts, respectively. They provide transient voltage suppression / circuit protection for one power line. Ideal applications include battery chargers / battery packs, wireless telecommunications devices, smartphones, and other portable electronics. For battery applications, the TVS arrays protect sensitive electronics from switching transients across the AC line. The circuit protection devices also deliver protection against electrostatic discharge (ESD) and electrical over-stress (EOS). The PSDxxHP series, in conjunction with passive components integrated into a TVS / filter network, can be used for electromagnetic interference / radio frequency interference (EMI / RFI) protection.
The PSDxxHP series is compatible with IEC 61000-4-2 (ESD): air – 15kV, contact – 8kV, with IEC 61000-4-4 (EFT): 40A – 5/50ns, and with IEC 61000-4-5 (surge): 45A, 8/20 micro seconds. The series features unidirectional configuration and also serves as an ideal replacement for multi-layer varistors (MLV) (0805). The parts also have a low clamping voltage and are RoHS and REACH compliant. The operating and storage temperature range is -55 to 150 degrees Celsius.
The components from the series come in a molded JEDEC SOD-323 package, which saves space on the printed circuit board. They have an approximate weight of only five milligrams. Other key mechanical characteristics include lead-free pure-tin plating (annealed) and a solder reflow temperature of (pure-tin – Sn, 100) 260 to 270 degrees Celsius. The flammability rating is UL 94V-0. The parts can be had in 8mm tape and reel, per EIA standard 481. The full data sheet can be had here.
Earlier this week, ProTek Devices introduced a new family of high-powered surface mount transient voltage suppressors (TVS) for high-voltage spike circuit protection applications that include relay drives, motors (start/stop), module lightning protection and for secondary lightning protection. The SM10KW33A and SM10KW36A TVS components provide 8,500 watts of peak pulse power dissipation for a 10/1000 micro second waveform.
The SM10KW33A has a rated stand-off voltage of 33 volts while the SM10KW36A’s is 36 volts. Also, the SM10KW33A has a minimum breakdown voltage of 36.8 volts while the SM10KW36A’s is 40.0 volts. Maximum clamping voltage for the SM10KW33A is 56.6 volts at 150.0 amps while the SM10KW36A is 60.7 volts at 140.0 amps. Other voltages are available but, customers should contact ProTek Devices or their local distributor for such custom orders. These TVS components are IEC compatible with standards 61000-4-5 (surge): 48A, 8/20 micro seconds – L3 (line-ground), L4 (line-line), and L1 (power). They feature a unidirectional configuration and easy mounting to a printed circuit board. They are also RoHS and REACH compliant.
Both TVS devices are provided in a molded DFN-2-KW surface mount package configuration that provides a low profile and reduced cost. The approximate weight is 2.5 grams. Other mechanical characteristics include lead-free silver plating, a solder reflow temperature of 260-270 degrees Celsius, and a flammability rating of UL 94V-0. Storage and operating temperatures are -55 to +150 degrees Celsius. Get the rest of the press release and related product materials here.
ProTek Devices recently updated its data sheets for the PAM08SD2312C and PAM18DF2L0521 transient voltage suppressors (TVS) arrays, of which both parts are well suited for circuit protection in automotive applications.
The PAM08SD2312C is a TVS array designed for automotive ESD protection. ESD protection is > 25kV. These silicon based diodes offer superior clamping voltage and performance compared to other technologies, such as MLVs (0805). Maximum clamping voltage is 19.0 volts at IP = 1A. Rated stand-off voltage is 12.0, minimum breakdown voltage is 13.3 at 1mA. Maximum leakage current is 1 microampere and typical capacitance is 50pF. The PAM08SD2312C can be used as a single line protector in a bidirectional configuration. This TVS array is compatible with IEC 61000-4-2 (ESD): air – 15kV, contact – 8kV; with IEC 61000-4-4 (EFT): 40A – 5/50ns; and with IEC 61000-4-5 (surge): 24A, 8/20 micro second level 2 (line-gnd) and level 3 (line-line). It boasts 400 watts peak pulse power per line (tp = 8/20 micro seconds). The PAM08SD2312C is RoHS and REACH compliant.
The molded JEDEC SOD-323 small package configuration offers designers the flexibility of placement on the printed circuit board for each I/O port or voltage bus. It has an approximate weight of only 5 milligrams. Other mechanical characteristics include lead-free pure-tin plating (annealed), a solder reflow temperature of (pure-tin – Sn, 100) 260-270 degrees Celsius and a flammability rating of UL 94V-0. It’s provided in 8mm tape and reel, per EIA standard 481. Get full details on the updated specifications here.
The PAM18DF2L0521 is an ultra-low capacitance (0.4 pF [typical]) TVS array, designed to protect automotive applications from the damaging effects of electrostatic discharge and electrical fast transients. An AEC-Q101-qualified device, it is also compatible with IEC 61000-4-2 (ESD): air 15kV, contact 8kV; with IEC 61000-4-4 (EFT); and with IEC 61000-4-5 (surge). At higher operating frequencies or faster edge rates, insertion loss and signal integrity are a major concern. The PAM18DF2L0521 is ideal for addressing such concerns. It protects one bidirectional line and features 80 watts peak pulse power per line (tp = 8/20 micro seconds). Rated stand-off voltage is 5.0, minimum breakdown voltage is 6.0, maximum leakage current is 1 microampere. The part is also RoHS and REACH compliant.
The PAM18DF2L0521 is provided in a molded miniature JEDEC DFN-2-0402 package with an approximate weight of just 2 milligrams. It features lead-free pure-tin plating (annealed) and a solder reflow temperature of (pure-tin – Sn, 100) 260-270 degrees Celsius. The flammability rating is UL 94V-0. It too is provided in 8mm tape and reel, per EIA standard 481. The updated data sheet is available here.
ProTek Devices today introduced a new transient voltage suppressor array (TVS array) for overvoltage circuit protection in a variety of high speed applications such as Gigabit Ethernet, LAN / WAN equipment, notebooks and desktop computers, and more. The new PLR2512 is an ultra-low capacitance (3pF typical) TVS array with 100 watts peak pulse power per line (typical = 8/20 micro seconds).
The PLR2512 is also ideal for integrated magnetics / RJ-45 connectors, security cameras, and industrial controls applications. The device meets IEC standards requirements for 61000-4-2 covering electrostatic discharge (ESD) and 61000-4-4 covering electrical fast transients (EFT). ESD protection is > 25 kilovolts. The PLR2512 protects two line pairs and delivers low leakage current (10nA) and a low stand-off voltage of 2.5 volts. The minimum and maximum breakdown voltages are 2.7 and 3.6 volts, respectively. The maximum snapback voltage is 2.8 volts. The component is RoHS and REACH compliant. Operating and storage temperatures are -55 to 150 degrees Celsius.
This device is available in the space-saving molded DFN-8 package configuration. The package minimizes lead inductance to prevent overshoot voltages during high ESD current events. It has an approximate weight of just seven milligrams. It features lead-free nickel palladium gold plating and a solder reflow temperature of 260 – 270 degrees Celsius. The PLR2512 has a flammability rating of UL 94V-0.
Pricing and Availability
ProTek Devices’ PLR2512 TVS array series is now available in mass quantities. Pricing varies by the number of units per order. The TVS array is available in eight millimeter tape and reel, per EIA standard 481. A data sheet for the PLR2512 can be download from the main website.
The PMPS-E-1206 series and PMPS020-FH-1206 device, which consist of polymeric positive temperature coefficient (PPTC or PTC) components from ProTek Devices, have new updates to their data sheets. These devices provide overcurrent circuit protection in popular applications such as motherboards, game consoles, set top boxes (STB), and more.
The PMPS-E-1206 series of PTC resettable fuses consists of 15 PTC devices. Each provides differing maximum holding current from 0.125 amps to 3.70 amps. Minimum trip current ranges from 0.37 amps to 7.40 amps and maximum interrupt voltages range from 6 to 30 volts. This ensures the series covers a very broad range of applications, from USB hubs, to automotive, to industrial controls and much more. The devices are designed for board-saving benefits and are compatible with high-volume electronic assembly. They are RoHS compliant and halogen free. Mechanical characteristics include a weight of only 0.0058 grams. The surface mount device (SMD) size is 1206 and features a lead-free package. It’s available in 8mm tape and reel, per EIA standard 481. Get the updated data sheet here.
The PMPS020-FH-1206 PTC device provides a maximum holding current of 0.20 amps, minimum trip current of 0.40 amps, maximum interrupt voltage of 30 volts, and maximum fault current of 100 amps. It too is ideal for a variety of applications: motherboards, USB hubs and ports, battery PCMs, mobile devices, game consoles, optical electronics, security systems, etc. This resettable PTC fuse is RoHS compliant and halogen free. The SMD size is also 1206 and also weighs just 0.0058 grams. The package is lead free. It’s available in 8mm tape and reel, per EIA standard 481. The updated data sheet may be downloaded here.
ProTek Devices’ family of overcurrent circuit protection devices are designed to protect consumer electronics, computers, automotive, and telecommunications equipment from the risk of fire or shock caused by overcurrents or over-temperature faults. Current is interrupted in a controlled manager to avoid damage to circuit components and is allowed to fail gracefully. These devices are available in ceramic/glass/polymer packages and have excellent environmental performance. The family includes slow blow, high inrush and fasting acting fuses as well as polymer PTC devices.
ProTek Devices has new brochures covering some specific applications in which we provide advanced circuit protection devices for. These applications include communications, industrial, and military / aerospace. The brochures are available for download as a PDF here. However, if you email your full name, title and contact details to/; service -the “at” symbol – protekdevices.com, we may also mail you a full-color printed version of any brochure you request. Here is a summary of what is covered in each brochure.
Communication interfaces are vulnerable to a variety of transient voltage threats such as electrostatic discharge (ESD), cable discharge events (CDE) and lightning surge. These threats provide the system designer with the challenge to incorporate overvoltage protection that meets or exceeds circuit protection standards while not degrading the transmission rate. Key parameters, such as working voltage, clamping voltage and capacitance, must be taken into consideration when choosing an overvoltage protection device. ProTek Devices offers low profile, space saving circuit protection devices that provide low working voltage, lower clamping voltages and ultra-low capacitance for high-speed communication applications. Download the full digital brochure here.
Today’s industrial applications are as diverse as ever. They include point of sale (PoS) systems that have card readers, modems and serial ports. They also include residential and commercial energy meters and smart meters; industrial displays; appliances; general control systems; instrumentation; photovoltaic systems; LED lighting and many more. Industrial system failures in the field due to improper circuit protection can be costly exercises in terms of time and money. In addition, system downtime can often result in damage to a company’s image or quality reputation – both that of the user and the system provider. Any of these industrial applications are at risk to external threats that can include electrostatic discharges (ESD), electrical fast transients (EFT), surges, lightning or improper wiring. No matter the industrial application, ProTek Devices provides a comprehensive family of overvoltage and overcurrent protection devices to cover them. They are designed to seamlessly integrate within the various electronics design requirements of today’s modern industrial electronics system. The digital brochure is available here.
Military / Aerospace Brochure
According to National Geographic, there are about 100 lightning bolt strikes on the earth’s surface every single second. Each bolt can contain up to one billion volts of electricity. The National Severe Storms Laboratory (NSSL) estimates at least 30 million points on the ground are struck on average each year, just in the USA. In the air, perhaps where the military and commercial air fleets are concerned, it is estimated that each airliner in the USA will be hit by lightning once per year. Furthermore, static electricity, which humans very commonly generate, can have some 35,000 volts of electricity. Either a billion volts or 35,000 volts are far more than enough to destroy important electronics within mission-critical systems. In military and aerospace markets, protecting costly equipment – from vehicles to aircraft and beyond – from such electrical events is a requirement. ProTek Devices has an extensive family of circuit protection components widely used in military and aerospace applications. The components are also designed to be provided in small packages suitable for even the smallest footprint military and aerospace applications. This digital brochure is available here.
PAM1CAN CAN BUS Diode
ProTek Devices’ PAM1CAN CAN BUS electrostatic discharge (ESD) diode is a circuit protection device designed to protect two automotive or other types of Controller Area Network (CAN) bus lines. In addition to ESD protection, it also protects against other electrical fast transients (EFT). This circuit protection diode is compatible with IEC 61000-4-2 (ESD): air 15kV, contact 8kV; with 61000-4-4 (EFT): 40A, 5/50ns; and with 61000-4-5 (surge): 3A, 8/20μs. It provides 200 watts peak pulse power per line (typical = 8/20μs). ESD protection is > 25 kilovolts. The component offers a low clamping voltage, low capacitance, and low leakage current. It is also RoHS and REACH compliant.
The PAM1CAN is provided in a molded JEDEC SOT-23 package at an approximate weight of just eight milligrams. Other key mechanical characteristics include lead-free pure-tin plating (annealed) and a solder reflow temperature of (pure-tin – Sn, 100) 260-270 degrees Celsius. The flammability rating is UL 94V-0. The PAM1CAN is provided in 8mm tape and reel, per EIA standard 481. The updated data sheet may be had here.
ProTek Devices’ K series (K1, KA, KB, KC and KD) consists of more than 20 high-power transient voltage suppressors (TVS) for circuit protection in DC and AC applications, remote transmission lines, industrial wiring, and more. These circuit protection devices deliver minimum breakdown voltages in a variety of ranges. For example, the K1-076 provides a minimum breakdown voltage of 83.0 volts while the KC-430 is rated at 440.0 volts.
The parts have a UL file recognition of #E333727. Other features include axial lead terminals, high current capability, and an excellent clamping voltage. The parts are bidirectional and have a glass passivated junction. In addition, the K series provides a low slope resistance and repetition rate (duty cycle) of 0.01 percent. A hazardous substance free solution, the series is also RoHS complaint (exemption #7).
The K series are epoxy-encapsulated axial lead devices with an approximate weight of only 3.35 grams. High temperature soldering is possible at 260 degrees Celsius / 10 seconds at terminals. The flammability rating is UL 94V-0. For complete specifications on all the parts in the K series, see the latest data sheet here.
ProTek Devices has provided an updated data sheet for two of our transient voltage suppressor (TVS) component series, the P6KE and 1.5KE.
The P6KE series include discrete 600 watt (peak pulse power per line [tp = 10/1000μs]) silicon TVS components designed for use in applications where large voltage transients can permanently damage voltage-sensitive components and equipment. Such applications include DC and AC, remote transmission lines, industrial wiring, and more. The series consists of nearly 100 parts offered in various breakdown voltages ranging from a minimum of 6.12 volts to a maximum of 630.0 volts. The series is compatible with IEC 61000-4-5 (surge). It also has a UL file recognition #E333727. The components provide unidirectional and bidirectional configurations, low leakage and excellent clamping capabilities. The P6KE series also boast a very fast response time, easy mounting to printed circuit boards and RoHS compliance (exemption #7). The operating and storage temperature are -55 to 150 degrees Celsius.
The parts are glass-passivated chips and are provided in a molded case with an approximate weight of only 0.38 grams. Other key mechanical characteristics include lead-free pure-tin plating (annealed) and a solder reflow temperature of (pure-tin – Sn, 100) 260 – 270 degrees Celsius. The flammability rating for the series is UL 94V-0. Get the updated data sheet here.
ProTek Devices’ 1.5KE series are discrete 1,500 watt (peak pulse power per line (tp = 10/1000μs]) silicon TVS devices designed for use in applications where large voltage transients can permanently damage voltage sensitive components and equipment. Like the P6KE series, this includes DC and AC, remote transmission lines, industrial wiring, and more. This series also consists of nearly 100 parts transient voltage suppressor components offered in various breakdown voltages ranging from a minimum 6.12 to a maximum 630.0 volts. It too is compatible with IEC 61000-4-5 (surge) and can claim UL file recognition #E333727. This series also offers unidirectional and bidirectional configurations, low leakage, and excellent clamping capabilities. In addition, it provides a very fast response time and easy mounting to printed circuit boards. The 1.5KE series of transient voltage suppressors are RoHS complaint (exemption #7). Their operating and storage temperature are -55 to 150 degrees Celsius.
These parts are also glass-passivated chips in a molded case with an approximate weight of just 0.84 grams. Other key mechanical characteristics include lead-free pure-tin plating (annealed) and a solder reflow temperature (pure-tin – Sn, 100) of 260 – 270 degrees Celsius. The flammability rating is UL 94V-0. This updated data sheet may be downloaded here.
- ProTek Devices at Electronica 2014
- Overvoltage Protection Article with EE Journal
- ProTek Devices High Powered TVS Array PSD05HP – PSD12HP Data Sheets Updated
- ProTek Devices’ New TVS Components Offer High Voltage Spike Circuit Protection
- Updated Specifications for 2 ProTek Devices Automotive TVS Arrays