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) and the effects of arcs, EFT, ESD, inductive load switching, and even lightning strikes. RS Components offer an extensive range of TVS diodes from a multitude of brands across the industry, including Bourns, Littelfuse, ON Semiconductor, STMicroelectronics, Taiwan Semiconductor, Vishay, and more.

TVS diodes are offered in both through-hole and surface mount packages and 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. You can learn more in our TVS diodes guide.

What are the benefits of using transient voltage suppressor diodes?

Transient voltage suppressors 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, EFT (electrical fast transients), the ESD (electrostatic discharge) created by data lines and electronic circuits, and even lightning strikes.

What 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 is the operating voltage that the data or power line should not exceed. Breakdown voltage 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 higher than the reverse standoff voltage.

Typical applications of TVS diodes

  • TVS diodes have numerous applications but are primarily used 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 Mounting Type Package Type Maximum Reverse Stand-off Voltage Pin Count Peak Pulse Power Dissipation Maximum Peak Pulse Current ESD Protection Number of Elements per Chip Minimum Operating Temperature Maximum Operating Temperature
RS Stock No. 773-4520
Mfr. Part No.CD143A-SR05
BrandBourns
TWD26.30
Each (In a Pack of 10)
units
Complex Array Uni-Directional 20V 6V Surface Mount SOT-143 - 4 500W 30A Yes 5 -55 °C +150 °C
RS Stock No. 177-5418
Mfr. Part No.TBU-CA065-200-WH
BrandBourns
TWD25.30
Each (On a Reel of 3000)
units
Single Bi-Directional 650V - Surface Mount DFN 20V 2 - 0.4A - 1 -55 °C +125 °C
RS Stock No. 165-3034
Mfr. Part No.CD143A-SR05
BrandBourns
TWD13.30
Each (On a Reel of 3000)
units
Complex Array Uni-Directional 20V 6V Surface Mount SOT-143 - 4 500W 30A Yes 5 -55 °C +150 °C
RS Stock No. 717-3439
Mfr. Part No.TBU-CA065-200-WH
BrandBourns
TWD55.00
Each (In a Pack of 5)
units
Single Bi-Directional 650V - Surface Mount DFN 20V 2 - 0.4A - 1 -55 °C +125 °C
RS Stock No. 767-3728
Mfr. Part No.CDSOT23-SM712
BrandBourns
TWD51.60
Each (In a Pack of 10)
units
Series Bi-Directional 26V 7.5V Surface Mount SOT-23 12V 3 400W 17A Yes 2 -55 °C +150 °C
RS Stock No. 165-3019
Mfr. Part No.CDSOT23-SM712
BrandBourns
TWD21.20
Each (On a Reel of 3000)
units
Series Bi-Directional 26V 7.5V Surface Mount SOT-23 12V 3 400W 17A Yes 2 -55 °C +150 °C
RS Stock No. 717-3486
Mfr. Part No.TBU-CA085-300-WH
BrandBourns
TWD55.00
Each (In a Pack of 5)
units
Single Bi-Directional 850V - Surface Mount DFN 20V 2 - 0.6A - 1 -55 °C +125 °C
RS Stock No. 177-5426
Mfr. Part No.TBU-CA085-300-WH
BrandBourns
TWD26.60
Each (On a Reel of 3000)
units
Single Bi-Directional 850V - Surface Mount DFN 20V 2 - 0.6A - 1 -55 °C +125 °C
RS Stock No. 174-3135
Mfr. Part No.SMAJ36CA
BrandBourns
TWD11.20
Each (In a Pack of 25)
units
- - - - - - - - - - - - - -
RS Stock No. 174-2484
Mfr. Part No.SMAJ36CA
BrandBourns
TWD3.10
Each (On a Reel of 5000)
units
Single Bi-Directional - 40V Surface Mount DO-214AC 495V 2 400W - Yes 1 -55 °C +150 °C
RS Stock No. 804-7868
Mfr. Part No.CDDFN2-T3.3B
BrandBourns
TWD11.30
Each (In a Pack of 25)
units
Single Bi-Directional 8V 4V Surface Mount DFN - 2 - 5A Yes 1 -55 °C +85 °C
RS Stock No. 165-3031
Mfr. Part No.CDDFN2-T3.3B
BrandBourns
TWD4.40
Each (On a Reel of 12000)
units
Single Bi-Directional 8V 4V Surface Mount DFN - 2 - 5A Yes 1 -55 °C +85 °C
RS Stock No. 717-3420
Mfr. Part No.TBU-CA050-050-WH
BrandBourns
TWD62.40
Each (In a Pack of 5)
units
Single Bi-Directional 500V - Surface Mount DFN 20V 2 - 0.1A - 1 -55 °C +125 °C
RS Stock No. 177-5416
Mfr. Part No.TBU-CA050-050-WH
BrandBourns
TWD25.20
Each (On a Reel of 3000)
units
Single Bi-Directional 500V - Surface Mount DFN 20V 2 - 0.1A - 1 -55 °C +125 °C
RS Stock No. 773-4555
Mfr. Part No.CDNBS08-SRDA3.3-4
BrandBourns
TWD44.00
Each (In a Pack of 5)
units
Complex Array Uni-Directional 10.9V 4V Surface Mount SOIC 3.3V 8 500W 43A Yes 9 -55 °C +150 °C
RS Stock No. 773-4577
Mfr. Part No.CDSOT23-SRV05-4
BrandBourns
TWD30.30
Each (In a Pack of 10)
units
Complex Array Uni-Directional 15V 6V Surface Mount SOT-23 5V 6 500W 30A Yes 4 -55 °C +150 °C
RS Stock No. 177-5423
Mfr. Part No.TBU-CA065-300-WH
BrandBourns
TWD25.30
Each (On a Reel of 3000)
units
Single Bi-Directional 650V - Surface Mount DFN 20V 2 - 0.6A - 1 -55 °C +125 °C
RS Stock No. 146-0658
Mfr. Part No.CDSOT23-SRV05-4
BrandBourns
TWD15.20
Each (On a Reel of 3000)
units
Complex Array Uni-Directional 15V 6V Surface Mount SOT-23 5V 6 500W 30A Yes 4 -55 °C +150 °C
RS Stock No. 146-0656
Mfr. Part No.CDNBS08-SRDA3.3-4
BrandBourns
TWD27.10
Each (On a Reel of 2500)
units
Complex Array Uni-Directional 10.9V 4V Surface Mount SOIC 3.3V 8 500W 43A Yes 9 -55 °C +150 °C
RS Stock No. 717-3473
Mfr. Part No.TBU-CA065-300-WH
BrandBourns
TWD53.80
Each (In a Pack of 5)
units
Single Bi-Directional 650V - Surface Mount DFN 20V 2 - 0.6A - 1 -55 °C +125 °C