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. 166-2565
Mfr. Part No.P6KE350CA
PHP15.631
Each (On a Reel of 4000)
units
Single Bi-Directional 482V 332V Through Hole DO-15 300V 2 600W 1.3A - 1 -65 °C +175 °C
RS Stock No. 543-8567
Mfr. Part No.P6KE350CA
PHP32.652
Each (In a Pack of 5)
units
Single Bi-Directional 482V 332V Through Hole DO-15 300V 2 600W 1.3A - 1 -65 °C +175 °C
RS Stock No. 166-1745
Mfr. Part No.P6KE15CA
PHP11.938
Each (On a Reel of 4000)
units
Single Bi-Directional 21.2V 14.3V Through Hole DO-15 12.8V 2 600W 28A - 1 -65 °C +175 °C
RS Stock No. 543-8797
Mfr. Part No.P6KE15CA
PHP21.094
Each (In a Pack of 5)
units
Single Bi-Directional 21.2V 14.3V Through Hole DO-15 12.8V 2 600W 28A - 1 -65 °C +175 °C
RS Stock No. 486-0711
Mfr. Part No.1.5KE440CA
PHP44.762
Each (In a Pack of 5)
units
Single Bi-Directional 776V 418V Through Hole DO-201 376V 2 1500W 13A - 1 -65 °C +175 °C
RS Stock No. 919-6403
Mfr. Part No.1.5KE440CA
PHP24.129
Each (In a Bag of 600)
units
Single Bi-Directional 776V 418V Through Hole DO-201 376V 2 1500W 13A - 1 -65 °C +175 °C
RS Stock No. 485-9418
Mfr. Part No.P6KE400CA
PHP28.298
Each (In a Pack of 5)
units
Single Bi-Directional 706V 380V Through Hole DO-15 342V 2 600W 5.7A - 1 -65 °C +175 °C
RS Stock No. 710-3443
Mfr. Part No.SMAJ18A-E3/61
BrandVishay
PHP11.582
Each (In a Pack of 25)
units
Single Uni-Directional 29.2V 20V Surface Mount DO-214AC (SMA) 18V 2 400W 13.7A - 1 -55 °C +150 °C
RS Stock No. 486-4971
Mfr. Part No.SM6T27A
PHP18.008
Each (In a Pack of 10)
units
Single Uni-Directional 48.3V 25.7V Surface Mount DO-214AA (SMB) 23.1V 2 600W 83A - 1 -55 °C +150 °C
RS Stock No. 168-6157
Mfr. Part No.P6KE400CA
PHP12.209
Each (On a Tape of 1000)
units
Single Bi-Directional 706V 380V Through Hole DO-15 342V 2 600W 5.7A - 1 -65 °C +175 °C
RS Stock No. 177-7539
Mfr. Part No.SMAJ18A-E3/61
BrandVishay
PHP5.137
Each (On a Reel of 1800)
units
Single Uni-Directional 29.2V 20V Surface Mount DO-214AC (SMA) 18V 2 400W 13.7A - 1 -55 °C +150 °C
RS Stock No. 168-6272
Mfr. Part No.SM6T27A
PHP7.46
Each (On a Reel of 2500)
units
Single Uni-Directional 48.3V 25.7V Surface Mount DO-214AA (SMB) 23.1V 2 600W 83A - 1 -55 °C +150 °C
RS Stock No. 767-3728
Mfr. Part No.CDSOT23-SM712
BrandBourns
PHP66.371
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
PHP33.272
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. 919-6513
Mfr. Part No.BZW50-12B
PHP104.144
Each (In a Bag of 100)
units
Single Bi-Directional 28V 13.3V Through Hole R 6 12V 2 5000W 2143A - 1 -65 °C +175 °C
RS Stock No. 714-7018
Mfr. Part No.BZW50-12B
PHP146.31
Each (In a Pack of 2)
units
Single Bi-Directional 28V 13.3V Through Hole R 6 12V 2 5000W 2143A - 1 -65 °C +175 °C
RS Stock No. 486-4230
Mfr. Part No.1.5KE220CA
PHP61.226
Each (In a Pack of 5)
units
Single Bi-Directional 388V 209V Through Hole DO-201 188V 2 1500W 26A - 1 -65 °C +175 °C
RS Stock No. 876-8050
Mfr. Part No.5KP11CA
BrandLittelfuse
PHP100.421
Each (In a Pack of 800)
units
Single Bi-Directional 18.2V 12.2V Through Hole P600 11V 2 5000W 280.2A Yes 1 -55 °C +175 °C
RS Stock No. 168-6247
Mfr. Part No.1.5KE220CA
PHP33.285
Each (On a Tape of 600)
units
Single Bi-Directional 388V 209V Through Hole DO-201 188V 2 1500W 26A - 1 -65 °C +175 °C
RS Stock No. 166-0283
Mfr. Part No.P6SMB250A
BrandLittelfuse
PHP10.71
Each (On a Reel of 3000)
units
Single Uni-Directional 344V 237V Surface Mount DO-214AA (SMB) 214V 2 600W 1.8A - 1 -65 °C +150 °C