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. 166-2563
Mfr. Part No.P6KE56CA
HK$1.766
Each (On a Reel of 4000)
units
Single Bi-Directional 77V 53.2V Through Hole DO-15 47.8V 2 600W 7.8A - 1 -65 °C +175 °C
RS Stock No. 543-8523
Mfr. Part No.P6KE56CA
HK$3.508
Each (In a Pack of 5)
units
Single Bi-Directional 77V 53.2V Through Hole DO-15 47.8V 2 600W 7.8A - 1 -65 °C +175 °C
RS Stock No. 485-9474
Mfr. Part No.SMBJ12CA
HK$2.307
Each (In a Pack of 10)
units
Single Bi-Directional 19.9V 13.3V Surface Mount DO-214AA (SMB) 12V 2 600W 30.2A - 1 -55 °C +150 °C
RS Stock No. 169-8519
Mfr. Part No.SMBJ12CA
HK$1.544
Each (On a Reel of 3000)
units
Single Bi-Directional 19.9V 13.3V Surface Mount DO-214AA (SMB) 12V 2 600W 30.2A - 1 -55 °C +150 °C
RS Stock No. 145-5561
Mfr. Part No.SMCJ18CA
HK$2.976
Each (On a Reel of 3000)
units
Single Bi-Directional 29.2V 20V Surface Mount DO-214AB (SMC) 18V 2 1500W 51.4A - 1 - +150 °C
RS Stock No. 761-3748
Mfr. Part No.SMBJ5V0A
HK$3.584
Each (In a Pack of 25)
units
Single Uni-Directional 9.2V 6.4V Surface Mount DO-214AA (SMB) 5V 2 600W 65.2A - 1 -55 °C +150 °C
RS Stock No. 802-2474
Mfr. Part No.SMCJ18CA
HK$3.883
Each (In a Pack of 20)
units
Single Bi-Directional 29.2V 20V Surface Mount DO-214AB (SMC) 18V 2 1500W 51.4A - 1 - +150 °C
RS Stock No. 166-1999
Mfr. Part No.SMBJ5V0A
HK$1.486
Each (On a Reel of 3000)
units
Single Uni-Directional 9.2V 6.4V Surface Mount DO-214AA (SMB) 5V 2 600W 65.2A - 1 -55 °C +150 °C
RS Stock No. 146-2261
Mfr. Part No.SMAJ8.5A R3
HK$0.882
Each (On a Reel of 1800)
units
Single Uni-Directional 14.4V 9.44V Surface Mount DO-214AC (SMA) 8.5V 2 - 27.8A Yes 1 -55 °C +150 °C
RS Stock No. 687-3251
Mfr. Part No.SMAJ40CA R3
HK$4.264
Each (In a Pack of 20)
units
Single Bi-Directional 64.5V 44.4V Surface Mount DO-214AC (SMA) 40V 2 - 6.2A Yes 1 -55 °C +150 °C
RS Stock No. 146-2263
Mfr. Part No.P6KE12A R0
HK$2.173
Each (On a Reel of 3500)
units
Single Uni-Directional 16.7V 11.4V Through Hole DO-15 10.2V 2 600W 37A - 1 -55 °C +175 °C
New
RS Stock No. 216-9513
Mfr. Part No.TLD5S11AH
HK$18.466
Each (On a Reel of 750)
units
- Uni-Directional 18.2V 12.2V Surface Mount DO-218AB - 2 3600W - - 3 - -
RS Stock No. 169-9104
Mfr. Part No.P6KE20CA R0
HK$2.867
Each (On a Tape of 3500)
units
Single Bi-Directional 27.7V 19V Through Hole DO-15 17V 2 600W 22A - 1 -55 °C +175 °C
RS Stock No. 169-9105
Mfr. Part No.P6KE22CA R0
HK$2.07
Each (On a Tape of 3500)
units
Single Bi-Directional 30.6V 20.9V Through Hole DO-15 18.8V 2 600W 20A - 1 -55 °C +175 °C
RS Stock No. 808-0417
Mfr. Part No.SMCJ85CA
HK$3.906
Each (In a Pack of 20)
units
Single Bi-Directional 137V 94.4V Surface Mount DO-214AB (SMC) 85V 2 1500W 10.9A - 1 - +150 °C
RS Stock No. 166-3053
Mfr. Part No.SMBJ48CA
HK$1.051
Each (On a Reel of 3000)
units
Single Bi-Directional 77.4V 53.3V Surface Mount DO-214AA (SMB) 48V 2 600W 7.8A - 1 -65 °C +150 °C
New
RS Stock No. 216-9514
Mfr. Part No.TLD5S11AH
HK$27.982
Each (In a Pack of 5)
units
- Uni-Directional 18.2V 12.2V Surface Mount DO-218AB - 2 3600W - - 3 - -
New
RS Stock No. 216-9520
Mfr. Part No.TLD5S14AH
HK$27.982
Each (In a Pack of 5)
units
- Uni-Directional 23.2V 15.6V Surface Mount DO-218AB - 2 3600W - - 3 - -
RS Stock No. 687-3194
Mfr. Part No.SMAJ20CA R3
HK$2.998
Each (In a Pack of 20)
units
Single Bi-Directional 32.4V 22.2V Surface Mount DO-214AC (SMA) 20V 2 - 12.3A Yes 1 -55 °C +150 °C
RS Stock No. 808-0363
Mfr. Part No.SMCJ54A
HK$4.305
Each (On a Tape of 20)
units
Single Uni-Directional 87.1V 60V Surface Mount DO-214AB (SMC) 54V 2 1500W 17.2A - 1 - +150 °C