Axial Lead Transient Voltage Suppressors (TVS)
Revision October 18, 2013
1 / 6
@ UN Semiconductor Co., Ltd. 2013
Specifications are subject to change without notice.
Please refer to www.unsemi.com.tw for current information.
P4KE Series 6.8 To 600 V 400W
UN Semiconductor Co., Ltd. www.unsemi.com.tw
The P4KE series is designed specifically to protect sensitive electronic
equipment from voltage transients induced by lightning and other transient
voltage events.
Uni-directional Bi-directional
u Glass passivated chip junction in DO-41 Package
u Low leakage
u Uni and Bidirectional unit
u Excellent clamping capability
u 400W Peak power capability at 10 × 1000µs waveform Repetition rate
(duty cycle):0.01%
u Fast response time: typically less than 1.0ps from 0 Volts to V
BR
min
u Typical I
R
less than 5μA above 12V.
u High Temperature soldering: 260°C/40 seconds at terminals
u Typical maximum temperature coefficient ΔV
BR
= 0.1% ×
V
BR
@25°C× ΔT
u Plastic package has Underwriters Laboratory Flammability 94V-0
u Matte tin lead–free Plated
u Halogen free and RoHS compliant
u Typical failure mode is short from over-specified voltage or current
u Whisker test is conducted based on JEDEC JESD201A per its table
4a and 4c
u IEC-61000-4-2 ESD 15kV(Air), 8kV (Contact)
u ESD protection of data lines in accordance with IEC 61000-4-2
(IEC801-2)
u EFT protection of data lines in accordance with IEC 61000-4-4
(IEC801-4)
TVS devices are ideal for the protection of I/O interfaces, V
CC
bus and other
vulnerable circuits used in Telecom, Computer, Industrial and Consumer
electronic applications.
Parameter Symbol Value Unit
Peak Pulse Power Dissipation with a 10/1000µs waveform (Fig.1)(Note
1), (Note 2)
P
PPM
400 Watts
Peak Pulse Current with a 10/1000µs waveform.(Note1,Fig.3) I
PP
See Next Table Amps
Power Dissipation on Infinite Heat Sink at T
L
=75°C P
M(AV)
1.0 Watt
Peak Forward Surge Current, 8.3ms Single Half Sine Wave (Note 3) I
FSM
40 Amps
Maximum Instantaneous Forward Voltage at 25A for Unidirectional Only
(Note 4)
V
F
3.5/5.0 Voltage
Operating junction and Storage Temperature Range. T
J
, T
STG
-55 to +150 °C
Notes:
1. Non-repetitive current pulse, per Fig. 3 and derated above T
A
= 25°C per Fig. 2.
2. Mounted on 5.0mm x 5.0mm (0.03mm thick) Copper Pads to each terminal.
3. 8.3ms single half sine-wave, or equivalent square wave, Duty cycle = 4 pulses per minutes maximum.
4. V
F
< 3.5V for V
BR
< 200V and V
F
< 6.5V for V
BR
> 201V.
Bi-directional
Uni-direction
Cathode
Anode
