TVS Diodes

Transient voltage suppressor diodes, more commonly known as TVS diodes, are used to protect integrated circuits (ICs). TVS diodes protect semiconductors and sensitive components against high transient voltage spikes (overvoltage).


TVS diodes are offered in both through hole and surface mount packages. They can be unidirectional or bidirectional. Unidirectional TVS diodes will only allow positive or negative voltage whereas bidirectional diodes can operate at both positive and negative voltages.


TVS diodes are able to conduct large currents to the ground due to their construction. They feature a much larger p-n junction cross-sectional area than standard diodes.



What are the benefits of using transient voltage suppressor diodes?


TVS diodes respond incredibly quickly to overvoltage events, clamping transient voltages almost immediately. This enables them to protect circuits from the effects of arcing, inductive load switching, lightning strikes, EFT (electrical fast transients) and the ESD (electrostatic discharge) created by data lines and electronic circuits.


What do I need to consider when choosing a TVS diode?


There are a number of differentiators when choosing a TVS diode, but two key factors to consider are reverse standoff voltage and breakdown voltage.


  • Reverse standoff voltage - This is the operating voltage that the data or power line should not exceed.

  • Breakdown voltage - This is the voltage rating at which the TVS diode will provide protection and start conducting current to the ground. This voltage value is normally a little high than the reverse standoff voltage

Applications:


TVS diodes have numerous applications but are well suited to protect


  • microprocessors

  • MOS memory

  • AC power lines

  • Telecommunication equipment

  • Consumer electronics

...
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Description Price Diode Configuration Direction Type Maximum Clamping Voltage Minimum Breakdown Voltage Maximum Peak Pulse Current Mounting Type Package Type Maximum Reverse Stand-off Voltage Maximum Reverse Leakage Current Pin Count Peak Pulse Power Dissipation ESD Protection Number of Elements per Chip Minimum Operating Temperature
RS Stock No. 628-7691
Mfr. Part No.SMBJ24A-E3/52
BrandVishay
£0.40
Each (In a Pack of 5)
Units
Single Uni-Directional 38.9V 26.7V 15.4A Surface Mount DO-214AA (SMB) 24V 1µA 2 600W - 1 -55 °C
RS Stock No. 165-2480
Mfr. Part No.SMBJ24A-E3/52
BrandVishay
£0.099
Each (On a Reel of 750)
Units
Single Uni-Directional 38.9V 26.7V 15.4A Surface Mount DO-214AA (SMB) 24V 1µA 2 600W - 1 -55 °C
RS Stock No. 919-6393
Mfr. Part No.1.5KE400CA
£0.50
Each (In a Bag of 600)
Units
Single Bi-Directional 706V 380V 14A Through Hole DO-201 342V 1µA 2 1500W - 1 -65 °C
RS Stock No. 486-4381
Mfr. Part No.1.5KE400CA
£0.856
Each (In a Pack of 5)
Units
Single Bi-Directional 706V 380V 14A Through Hole DO-201 342V 1µA 2 1500W - 1 -65 °C
RS Stock No. 920-6266
Mfr. Part No.USBLC6-2SC6
£0.118
Each (On a Reel of 3000)
Units
Complex Array Uni-Directional 17V 6V 5A Surface Mount SOT-23 5V 150nA 6 - Yes 2 -40 °C
RS Stock No. 624-7693
Mfr. Part No.USBLC6-2SC6
£0.304
Each (In a Pack of 10)
Units
Complex Array Uni-Directional 17V 6V 5A Surface Mount SOT-23 5V 150nA 6 - Yes 2 -40 °C
RS Stock No. 165-3019
Mfr. Part No.CDSOT23-SM712
BrandBourns
£0.51
Each (On a Reel of 3000)
Units
Series Bi-Directional 26V 7.5V 17A Surface Mount SOT-23 12V 20µA 3 400W Yes 2 -55 °C
RS Stock No. 767-3728
Mfr. Part No.CDSOT23-SM712
BrandBourns
£1.098
Each (In a Pack of 10)
Units
Series Bi-Directional 26V 7.5V 17A Surface Mount SOT-23 12V 20µA 3 400W Yes 2 -55 °C
RS Stock No. 508-860
Mfr. Part No.PESD1CAN,215
BrandNexperia
£0.055
Each (In a Pack of 20)
Units
Series Bi-Directional 70V 25.4V 3A Surface Mount SOT-23 (TO-236AB) 24V 50nA 3 200W Yes 2 -65 °C
RS Stock No. 124-2373
Mfr. Part No.PESD1CAN,215
BrandNexperia
£0.05
Each (On a Reel of 3000)
Units
Series Bi-Directional 70V 25.4V 3A Surface Mount SOT-23 (TO-236AB) 24V 50nA 3 200W Yes 2 -65 °C
RS Stock No. 628-7304
Mfr. Part No.SMBJ5.0A-E3/52
BrandVishay
£0.404
Each (In a Pack of 5)
Units
Single Uni-Directional 9.2V 6.4V 65.2A Surface Mount DO-214AA (SMB) 5V 800µA 2 600W - 1 -55 °C
RS Stock No. 165-2507
Mfr. Part No.SMBJ5.0A-E3/52
BrandVishay
£0.099
Each (On a Reel of 750)
Units
Single Uni-Directional 9.2V 6.4V 65.2A Surface Mount DO-214AA (SMB) 5V 800µA 2 600W - 1 -55 °C
RS Stock No. 166-1517
Mfr. Part No.IP4220CZ6,125
BrandNexperia
£0.078
Each (On a Reel of 3000)
Units
Complex Array - - - - Surface Mount TSOP - - 6 - - 4 -40 °C
RS Stock No. 508-462
Mfr. Part No.PESD2CAN,215
BrandNexperia
£0.235
Each (In a Pack of 20)
Units
Series Bi-Directional 41V 26.2V 5A Surface Mount SOT-23 (TO-236AB) 24V 10nA 3 230W Yes 2 -65 °C
RS Stock No. 510-291
Mfr. Part No.IP4220CZ6,125
BrandNexperia
£0.235
Each (In a Pack of 10)
Units
Complex Array - - - - Surface Mount TSOP - - 6 - - 4 -40 °C
RS Stock No. 877-2567
Mfr. Part No.1.5KE33ARL
£0.335
Each (In a Pack of 20)
Units
Single Uni-Directional 59V 31.4V 169A Through Hole DO-201 28.2V 1µA 2 1500W - 1 -
RS Stock No. 168-8851
Mfr. Part No.1.5KE33ARL
£0.305
Each (On a Reel of 1900)
Units
Single Uni-Directional 59V 31.4V 169A Through Hole DO-201 28.2V 1µA 2 1500W - 1 -
RS Stock No. 102-6180
Mfr. Part No.1.5KE33A
£0.245
Each (In a Bag of 600)
Units
Single Uni-Directional 59V 31.4V 169A Through Hole DO-201 28.2V 1µA 2 1500W - 1 -65 °C
RS Stock No. 486-4303
Mfr. Part No.1.5KE33A
£0.382
Each (In a Pack of 10)
Units
Single Uni-Directional 59V 31.4V 169A Through Hole DO-201 28.2V 1µA 2 1500W - 1 -65 °C
RS Stock No. 725-8720
Mfr. Part No.PRTR5V0U2X,215
BrandNexperia
£0.336
Each (In a Pack of 20)
Units
Complex Array Uni-Directional - 6V - Surface Mount SOT-143B 5.5V 100µA 4 - Yes 2 -40 °C
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