TVS Diodes

A ‌Transient Voltage Suppression (TVS) diode‌ is a specialized semiconductor device designed to protect sensitive electronics from ‌sudden voltage spikes‌ (e.g., electrostatic discharge/ESD, lightning strikes, or switching surges). It operates by rapidly diverting excess current away from protected circuits, clamping the voltage to a safe level within nanoseconds. Unlike standard diodes, TVS diodes feature ‌larger PN junctions‌ to handle high-energy transients without damage‌

Core Working Principle‌:

‌1. Reverse Standby State:

In normal operation (voltage < breakdown threshold), the TVS diode acts as an open circuit with minimal leakage current.

2‌. Clamping During Surge:

When a transient voltage exceeds the ‌reverse breakdown voltage(typically 5V–495V), the diode instantly switches to a low-impedance state, shunting current to ground and limiting voltage across the protected circuit‌

3.Self-Recovery:

After the surge passes, it automatically resets to standby mode.

Part Number

UNI-POLAR

BI-POLAR

Package

Device Marking Code

UNI

BI

Power Dissipation

Ppk(W)

Reverse
Stand-off
Voltage

VRWM(V)

Breakdown Voltage VBR @  IT

Min.(V)

Max.(V)

Test Current

IT(mA)

Max. Clamping Voltage @ IPP

VC MAX.(V)

Max. Peak Pulse Current

IPP(A)

Max. Reverse
Leakage @ VRWM 

IR(μA)

P4KE39CA
DO-41
P4KE39A
P4KE39CA
400
33.3
37.1
41
1
53.9
7.6
1
P4KE43CA
DO-41
P4KE43A
P4KE43CA
400
36.8
40.9
45.2
1
59.3
6.9
1
P4KE47CA
DO-41
P4KE47A
P4KE47CA
400
40.2
44.7
49.4
1
64.8
6.3
1
P4KE51CA
DO-41
P4KE51A
P4KE51CA
400
43.6
48.5
53.6
1
70.1
5.8
1
P4KE56CA
DO-41
P4KE56A
P4KE56CA
400
47.8
53.2
58.8
1
77
5.3
1
P4KE62CA
DO-41
P4KE62A
P4KE62CA
400
53
58.9
65.1
1
85
4.8
1
P4KE68CA
DO-41
P4KE68A
P4KE68CA
400
58.1
64.6
71.4
1
92
4.5
1
P4KE75CA
DO-41
P4KE75A
P4KE75CA
400
64.1
71.3
78.8
1
103
4
1
P4KE82CA
DO-41
P4KE82A
P4KE82CA
400
70.1
77.9
86.1
1
113
3.6
1
P4KE91CA
DO-41
P4KE91A
P4KE91CA
400
77.8
86.5
95.5
1
125
3.3
1
P4KE100CA
DO-41
P4KE100A
P4KE100CA
400
85.5
95
105
1
137
3
1
P4KE110CA
DO-41
P4KE110A
P4KE110CA
400
94
105
116
1
152
2.7
1
P4KE120CA
DO-41
P4KE120A
P4KE120CA
400
102
114
126
1
165
2.5
1
P4KE130CA
DO-41
P4KE130A
P4KE130CA
400
111
124
137
1
179
2.3
1
P4KE150CA
DO-41
P4KE150A
P4KE150CA
400
128
143
158
1
207
2
1
Total 1659 < 1...8910...111 > proceed page OK

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Address: No.196, East Qingyu Road‌, Rucheng Street, Rugao-226500, Jiangsu Province, China.

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