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)

SMF17CA
SOD123FL
LR
BR
200
17
18.9
20.9
1
27.6
7.2
1
SMF18CA
SOD123FL
LT
BT
200
18
20
22.1
1
29.2
6.8
1
SMF20CA
SOD123FL
LV
BV
200
20
22.2
24.5
1
32.4
6.1
1
SMF22CA
SOD123FL
LX
BX
200
22
24.4
26.9
1
35.5
5.6
1
SMF24CA
SOD123FL
LZ
BZ
200
24
26.7
29.5
1
38.9
5.1
1
SMF26CA
SOD123FL
ME
CE
200
26
28.9
31.9
1
42.1
4.7
1
SMF28CA
SOD123FL
MG
CG
200
28
31.1
34.4
1
45.4
4.4
1
SMF30CA
SOD123FL
MK
CK
200
30
33.5
36.8
1
48.4
4.1
1
SMF33CA
SOD123FL
MM
CM
200
33
36.7
40.6
1
53.3
3.7
1
SMF36CA
SOD123FL
MP
CP
200
36
40
44.2
1
58.1
3.4
1
SMF40CA
SOD123FL
MR
CR
200
40
44.4
49.1
1
64.5
3.1
1
SMF43CA
SOD123FL
MT
CT
200
43
47.8
52.8
1
69.4
2.9
1
SMF45CA
SOD123FL
MV
CV
200
45
50
55.3
1
72.7
2.7
1
SMF48CA
SOD123FL
MX
CX
200
48
53.3
58.9
1
77.4
2.6
1
SMF51CA
SOD123FL
MZ
CZ
200
51
56.7
62.7
1
82.4
2.4
1
Total 1659 < 1234...111 > proceed page OK

Nantong JUXIN Semiconductor Co., Ltd.

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

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Email: info@rectifier-diode.com

 

Anhui JUXIN Semiconductor Co., Ltd.

Address: No.99,Shuanglong Road,Chizhou Economic Technology Development Zone,Anhui Province,China.


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