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. 165-2445
Mfr. Part No.SA30A-E3/54
BrandVishay
kr 2,127
Each (On a Reel of 4000)
Units
Single Uni-Directional 48.4V 33.3V 10A Through Hole DO-204AC 30V 1µA 2 500W Yes 1 -55 °C
RS Stock No. 812-9279
Mfr. Part No.SA33A-E3/54
BrandVishay
kr 1,971
Each (In a Pack of 20)
Units
Single Uni-Directional 53.3V 36.7V 9.4A Through Hole DO-204AC 33V 1µA 2 500W - 1 -55 °C
RS Stock No. 637-0709
Mfr. Part No.SA30A-E3/54
BrandVishay
kr 5,264
Each (In a Pack of 5)
Units
Single Uni-Directional 48.4V 33.3V 10A Through Hole DO-204AC 30V 1µA 2 500W Yes 1 -55 °C
RS Stock No. 165-6959
Mfr. Part No.SA33A-E3/54
BrandVishay
kr 2,003
Each (On a Reel of 4000)
Units
Single Uni-Directional 53.3V 36.7V 9.4A Through Hole DO-204AC 33V 1µA 2 500W - 1 -55 °C
RS Stock No. 812-9263
Mfr. Part No.SA28A-E3/54
BrandVishay
kr 1,971
Each (In a Pack of 20)
Units
Single Uni-Directional 45.4V 31.1V 11A Through Hole DO-204AC 28V 1µA 2 500W - 1 -55 °C
RS Stock No. 165-6955
Mfr. Part No.SA28A-E3/54
BrandVishay
kr 2,003
Each (On a Reel of 4000)
Units
Single Uni-Directional 45.4V 31.1V 11A Through Hole DO-204AC 28V 1µA 2 500W - 1 -55 °C
RS Stock No. 638-8687
Mfr. Part No.P6KE6.8A-E3/54
BrandVishay
kr 2,932
Each (In a Pack of 5)
Units
Single Uni-Directional 10.5V 6.45V 57.1A Through Hole DO-15 5.8V 1mA 2 600W - 1 -55 °C
RS Stock No. 637-8359
Mfr. Part No.1.5KE18A-E3/54
BrandVishay
kr 4,406
Each (In a Pack of 5)
Units
Single Uni-Directional 25.2V 17.1V 59.5A Through Hole 1.5KE 15.3V 1µA 2 1500W - 1 -55 °C
RS Stock No. 918-9418
Mfr. Part No.P6KE6.8A-E3
BrandVishay
kr 2,262
Each (On a Reel of 4000)
Units
Single Uni-Directional 10.5V 6.45V 57.1A Through Hole DO-15 5.8V 1mA 2 600W - 1 -55 °C
RS Stock No. 165-7195
Mfr. Part No.1N6277A-E3/54
BrandVishay
kr 4,163
Each (On a Tape of 1400)
Units
Single Uni-Directional 25.2V 17.1V 59.5A Through Hole 1.5KE 15.3V 1µA 2 1500W - 1 -55 °C
RS Stock No. 165-2290
Mfr. Part No.1.5KE18A-E3/54
BrandVishay
kr 3,472
Each (On a Tape of 1400)
Units
Single Uni-Directional 25.2V 17.1V 59.5A Through Hole 1.5KE 15.3V 1µA 2 1500W - 1 -55 °C
RS Stock No. 918-9405
Mfr. Part No.5KP30A-E3/54
BrandVishay
kr 12,143
Each (On a Reel of 800)
Units
Single Uni-Directional 48.4V 33.3V 103A Through Hole P600 30V 2µA 2 1500W Yes 1 -55 °C
RS Stock No. 811-6119
Mfr. Part No.1N6277A-E3/54
BrandVishay
kr 4,736
Each (In a Pack of 20)
Units
Single Uni-Directional 25.2V 17.1V 59.5A Through Hole 1.5KE 15.3V 1µA 2 1500W - 1 -55 °C
RS Stock No. 165-6163
Mfr. Part No.5KP28A-E3/54
BrandVishay
kr 11,839
Each (On a Reel of 800)
Units
Single Uni-Directional 45.4V 31.1V 110A Through Hole P600 28V 2µA 2 5000W - 1 -55 °C
RS Stock No. 145-2577
Mfr. Part No.SMBJ7.5A-E3
BrandVishay
kr 1,821
Each (On a Reel of 750)
Units
Single Uni-Directional 12.9V 8.33V 46.5A Surface Mount DO-214AA (SMB) 7.5V 100µA 2 600W - 1 -55 °C
RS Stock No. 815-2471
Mfr. Part No.GMF05C-HSF-GS08
BrandVishay
kr 2,128
Each (On a Tape of 50)
Units
Common Anode Bi-Directional 12.5V 6V 12A Surface Mount LLP75 5V 1µA 6 200W Yes 5 -55 °C
RS Stock No. 918-9345
Mfr. Part No.SA12A-E3/54
BrandVishay
kr 2,182
Each (On a Reel of 4000)
Units
Single Uni-Directional 19.9V 13.3V 25.1A Through Hole DO-15 12V 1µA 2 500W - 1 -55 °C
RS Stock No. 638-7779
Mfr. Part No.5KP30A-E3/54
BrandVishay
kr 15,792
Each (In a Pack of 5)
Units
Single Uni-Directional 48.4V 33.3V 103A Through Hole P600 30V 2µA 2 5000W - 1 -55 °C
RS Stock No. 628-7512
Mfr. Part No.SMBJ7.5A-E3/52
BrandVishay
kr 3,708
Each (In a Pack of 5)
Units
Single Uni-Directional 12.9V 8.33V 46.5A Surface Mount DO-214AA (SMB) 7.5V 100µA 2 600W - 1 -55 °C
RS Stock No. 636-5533
Mfr. Part No.SA12A-E3/54
BrandVishay
kr 5,264
Each (In a Pack of 5)
Units
Single Uni-Directional 19.9V 13.3V 25.1A Through Hole DO-15 12V 1µA 2 500W - 1 -55 °C