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 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. 166-3010
Mfr. Part No.SMBJ120CA
£0.093
Each (On a Reel of 3000)
Units
Single Bi-Directional 193V 133V 3.1A Surface Mount DO-214AA (SMB) 120V 5µA 2 600W - 1 -55 °C
RS Stock No. 802-2257
Mfr. Part No.SMBJ120CA
£0.257
Each (In a Pack of 50)
Units
Single Bi-Directional 193V 133V 3.1A Surface Mount DO-214AA (SMB) 120V 5µA 2 600W - 1 -55 °C
RS Stock No. 687-3674
Mfr. Part No.BZW04-17B R0
£0.297
Each (In a Pack of 25)
Units
Single Bi-Directional 27.7V 19V 14.5A Through Hole DO-41 17V 1µA 2 - - 1 -65 °C
RS Stock No. 169-9086
Mfr. Part No.BZW04-17B R0
£0.077
Each (On a Tape of 5000)
Units
Single Bi-Directional 27.7V 19V 14.5A Through Hole DO-41 17V 1µA 2 - - 1 -65 °C
RS Stock No. 166-1911
Mfr. Part No.SMBJ5V0CA
£0.165
Each (On a Reel of 3000)
Units
Single Bi-Directional 9.2V 6.4V 65.2A Surface Mount DO-214AA (SMB) 5V 800µA 2 600W - 1 -55 °C
RS Stock No. 802-2358
Mfr. Part No.SMBJ5V0CA
£0.295
Each (On a Tape of 50)
Units
Single Bi-Directional 9.2V 6.4V 65.2A Surface Mount DO-214AA (SMB) 5V 800µA 2 600W - 1 -55 °C
RS Stock No. 761-3732
Mfr. Part No.SMBJ15A
£0.235
Each (In a Pack of 25)
Units
Single Uni-Directional 24.4V 16.7V 24.6A Surface Mount DO-214AA (SMB) 15V 5µA 2 600W - 1 -55 °C
RS Stock No. 169-8579
Mfr. Part No.SMBJ15A
£0.079
Each (On a Reel of 3000)
Units
Single Uni-Directional 24.4V 16.7V 24.6A Surface Mount DO-214AA (SMB) 15V 5µA 2 600W - 1 -55 °C
RS Stock No. 166-3035
Mfr. Part No.1V5KE36CA
£0.372
Each (On a Reel of 1250)
Units
Single Bi-Directional 49.9V 34.2V 30.1A Through Hole DO-201AE 30.8V 5µA 2 1500W - 1 -55 °C
RS Stock No. 543-8652
Mfr. Part No.P6KE39A
£0.404
Each (In a Pack of 5)
Units
Single Uni-Directional 53.9V 37.1V 11.2A Through Hole DO-15 33.3V 5µA 2 600W - 1 -65 °C
RS Stock No. 803-1780
Mfr. Part No.1V5KE36CA
£0.485
Each (In a Pack of 25)
Units
Single Bi-Directional 49.9V 34.2V 30.1A Through Hole DO-201AE 30.8V 5µA 2 1500W - 1 -55 °C
RS Stock No. 166-2579
Mfr. Part No.P6KE39A
£0.119
Each (On a Reel of 4000)
Units
Single Uni-Directional 53.9V 37.1V 11.2A Through Hole DO-15 33.3V 5µA 2 600W - 1 -65 °C
RS Stock No. 166-2562
Mfr. Part No.P6KE36A
£0.119
Each (On a Reel of 4000)
Units
Single Uni-Directional 49.9V 34.2V 12A Through Hole DO-15 30.8V 5µA 2 600W - 1 -65 °C
RS Stock No. 543-8646
Mfr. Part No.P6KE36A
£0.404
Each (In a Pack of 5)
Units
Single Uni-Directional 49.9V 34.2V 12A Through Hole DO-15 30.8V 5µA 2 600W - 1 -65 °C
RS Stock No. 166-2575
Mfr. Part No.P6KE51A
£0.14
Each (On a Reel of 4000)
Units
Single Uni-Directional 70.1V 48.5V 8.6A Through Hole DO-15 43.6V 5µA 2 600W - 1 -65 °C
RS Stock No. 808-0329
Mfr. Part No.SMCJ28A
£0.373
Each (In a Pack of 20)
Units
Single Uni-Directional 45.4V 31.1V 33A Surface Mount DO-214AB (SMC) 28V 5µA 2 1500W - 1 -
RS Stock No. 543-8696
Mfr. Part No.P6KE51A
£0.404
Each (In a Pack of 5)
Units
Single Uni-Directional 70.1V 48.5V 8.6A Through Hole DO-15 43.6V 5µA 2 600W - 1 -65 °C
RS Stock No. 166-2280
Mfr. Part No.SMCJ28A
£0.196
Each (On a Reel of 3000)
Units
Single Uni-Directional 45.4V 31.1V 33A Surface Mount DO-214AB (SMC) 28V 5µA 2 1500W - 1 -
RS Stock No. 687-3081
Mfr. Part No.SMAJ11CA R3
£0.051
Each (In a Pack of 20)
Units
Single Bi-Directional 18.2V 12.2V 22A Surface Mount DO-214AC (SMA) 11V 5µA 2 - Yes 1 -55 °C
RS Stock No. 169-9042
Mfr. Part No.SMAJ11CA R3
£0.077
Each (On a Reel of 1800)
Units
Single Bi-Directional 18.2V 12.2V 22A Surface Mount DO-214AC (SMA) 11V 5µA 2 - Yes 1 -55 °C