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. 764-5521
Mfr. Part No.SA5.0A
BrandLittelfuse
£0.256
Each (In a Pack of 10)
Units
Single Uni-Directional 9.2V 6.4V 55.4A Through Hole DO-204AC 5V 600µA 2 500W - 1 -55 °C
RS Stock No. 166-0299
Mfr. Part No.SA5.0A
BrandLittelfuse
£0.127
Each (On a Reel of 4000)
Units
Single Uni-Directional 9.2V 6.4V 55.4A Through Hole DO-204AC 5V 600µA 2 500W - 1 -55 °C
RS Stock No. 793-1967
Mfr. Part No.SP0503BAHTG
BrandLittelfuse
£0.486
Each (In a Pack of 10)
Units
Array Uni-Directional 8.5V - - Surface Mount SOT-143 5.5V 100nA 4 0.22W Yes 3 -40 °C
RS Stock No. 166-0109
Mfr. Part No.SP0503BAHTG
BrandLittelfuse
£0.244
Each (On a Reel of 3000)
Units
Array Uni-Directional 8.5V - - Surface Mount SOT-143 5.5V 100nA 4 0.22W Yes 3 -40 °C
RS Stock No. 793-1989
Mfr. Part No.SP720ABG
BrandLittelfuse
£2.418
Each (In a Pack of 5)
Units
Complex Array Uni-Directional - - 3A Surface Mount SOIC - - 16 - Yes 14 -40 °C
RS Stock No. 178-6966
Mfr. Part No.SP720ABG
BrandLittelfuse
£1.938
Each (In a Tube of 40)
Units
Complex Array Uni-Directional - - 3A Surface Mount SOIC - - 16 - Yes 14 -40 °C
RS Stock No. 169-0730
Mfr. Part No.1.5KE440A
BrandLittelfuse
£0.278
Each (On a Reel of 1200)
Units
Single Uni-Directional 602V 418V 2.5A Through Hole DO-201 376V 1µA 2 1500W Yes 1 -55 °C
RS Stock No. 166-0298
Mfr. Part No.P6KE43CA
BrandLittelfuse
£0.099
Each (On a Reel of 4000)
Units
Single Bi-Directional 59.3V 40.9V 10.3A Through Hole DO-204AC 36.8V 1µA 2 600W - 1 -55 °C
RS Stock No. 764-5439
Mfr. Part No.1.5KE440A
BrandLittelfuse
£0.495
Each (In a Pack of 10)
Units
Single Uni-Directional 602V 418V 2.5A Through Hole DO-201 376V 1µA 2 1500W Yes 1 -55 °C
RS Stock No. 764-5473
Mfr. Part No.P6KE43CA
BrandLittelfuse
£0.24
Each (In a Pack of 10)
Units
Single Bi-Directional 59.3V 40.9V 10.3A Through Hole DO-204AC 36.8V 1µA 2 600W - 1 -55 °C
RS Stock No. 764-5647
Mfr. Part No.SMBJ5.0A
BrandLittelfuse
£0.214
Each (In a Pack of 25)
Units
Single Uni-Directional 9.2V 6.4V 65.3A Surface Mount DO-214AA (SMB) 5V 800µA 2 600W - 1 -65 °C
RS Stock No. 165-9817
Mfr. Part No.SMBJ24A
BrandLittelfuse
£0.079
Each (On a Reel of 3000)
Units
Single Uni-Directional 38.9V 26.7V 15.5A Surface Mount DO-214AA (SMB) 24V 1µA 2 600W - 1 -65 °C
RS Stock No. 764-5590
Mfr. Part No.SMBJ24A
BrandLittelfuse
£0.204
Each (In a Pack of 25)
Units
Single Uni-Directional 38.9V 26.7V 15.5A Surface Mount DO-214AA (SMB) 24V 1µA 2 600W - 1 -65 °C
RS Stock No. 169-0735
Mfr. Part No.SMBJ5.0A
BrandLittelfuse
£0.083
Each (On a Reel of 3000)
Units
Single Uni-Directional 9.2V 6.4V 65.3A Surface Mount DO-214AA (SMB) 5V 800µA 2 600W - 1 -65 °C
RS Stock No. 178-7033
Mfr. Part No.5KP33CA
BrandLittelfuse
£1.163
Each (On a Reel of 800)
Units
Single Bi-Directional 53.3V 36.7V 95.7A Through Hole P600 33V 2µA 2 5000W - 1 -55 °C
RS Stock No. 764-5455
Mfr. Part No.5KP33CA
BrandLittelfuse
£2.204
Each (In a Pack of 5)
Units
Single Bi-Directional 53.3V 36.7V 95.7A Through Hole P600 33V 2µA 2 5000W - 1 -55 °C
RS Stock No. 764-5568
Mfr. Part No.SMAJ5.0CA
BrandLittelfuse
£0.204
Each (In a Pack of 10)
Units
Single Bi-Directional 9.2V 6.4V 43.5A Surface Mount DO-214AC (SMA) 5V 800µA 2 400W - 1 -65 °C
RS Stock No. 165-9880
Mfr. Part No.SMAJ5.0CA
BrandLittelfuse
£0.074
Each (On a Reel of 5000)
Units
Single Bi-Directional 9.2V 6.4V 43.5A Surface Mount DO-214AC (SMA) 5V 800µA 2 400W - 1 -65 °C
RS Stock No. 764-5449
Mfr. Part No.1.5SMC440A
BrandLittelfuse
£0.536
Each (In a Pack of 10)
Units
Single Uni-Directional 602V 418V 2.5A Surface Mount DO-214AB (SMC) 376V 1µA 2 1500W - 1 -65 °C
RS Stock No. 764-5641
Mfr. Part No.SMBJ5.0CA
BrandLittelfuse
£0.219
Each (In a Pack of 10)
Units
Single Bi-Directional 9.2V 6.4V 65.3A Surface Mount DO-214AA (SMB) 5V 800µA 2 600W - 1 -65 °C