ProTek Devices has recently provided four new data sheets for its PLED508U and PLED511U unidirectional transient voltage suppressor (TVS) die for electrostatic discharge (ESD) protection. These products consist of individual unpackaged die available in wafer form.
The bidirectional PLED508 size is 7 X 7 mils while the bidirectional PLED511 is 9.5 X 9.5 mils excluding scribe area. Minimum BV is 5.7V and stand off voltage is 4.7V. Maximum leakage current is 1 microampere for the PLED508 and the PLED511. Capacitance is 15pF for the PLED508 and PLED511.
The unidirectional PLED508U size is 6.5 X 6.5 mils while the unidirectional PLED511U is 10.5 X 10.5 mils, excluding scribe. Minimum BV is 6.0V and stand off voltage is 5V. Maximum leakage current is 0.5 microampere for the PLED511U and 0.1 microampere for the PLED508U while capacitance is 80pF for both. The back metal for the all PLED wafers is Ti/Ni/Ag and the top metal is Al/Cu. All PLED wafers are also 6 mils thick.
The PLED511 has 200,000 diodes; the PLED511U has 150,000; the PLED508 has 300,000 and the PLED508U has 340,000 per wafer.