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. 168-6186
Mfr. Part No.1.5KE250A
HK$3.392
Each (On a Tape of 600)
units
Single Uni-Directional 442V 237V Through Hole DO-201 213V 2 1500W 23A - 1 -65 °C +175 °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. 544-4786
Mfr. Part No.ESDA6V1L
HK$4.222
Each (In a Pack of 5)
units
Common Anode Uni-Directional - 6.1V Surface Mount SOT-23 5.2V 3 300W - Yes 2 -40 °C +125 °C
RS Stock No. 165-6170
Mfr. Part No.5KP85A-E3/54
BrandVishay
HK$16.919
Each (On a Reel of 800)
units
Single Uni-Directional 137V 94.4V Through Hole P600 85V 2 5000W 36.5A - 1 -55 °C +175 °C
RS Stock No. 919-0913
Mfr. Part No.SMAJ5.0A-E3/61
BrandVishay
HK$1.014
Each (On a Reel of 1800)
units
Single Uni-Directional 9.2V 6.4V Surface Mount DO-214AC (SMA) 5V 2 400W 43.5A - 1 -55 °C +150 °C
RS Stock No. 919-4479
Mfr. Part No.SMCJ24CA-E3/57T
BrandVishay
HK$3.322
Each (On a Reel of 850)
units
Single Bi-Directional 38.9V 26.7V Surface Mount SMC 24V 2 1500W 38.6A - 1 -55 °C +150 °C
RS Stock No. 714-7229
Mfr. Part No.SMBJ5.0CA-TR
HK$2.992
Each (In a Pack of 25)
units
Single Bi-Directional 13.4V 6.4V Surface Mount DO-214AA (SMB) 5V 2 600W 298A - 1 -55 °C +150 °C
RS Stock No. 102-8622
Mfr. Part No.BZW06-5V8
HK$1.555
Each (In a Bag of 1000)
units
Single Uni-Directional 13.4V 6.45V Through Hole DO-15 5.8V 2 600W 298A - 1 -65 °C +175 °C
RS Stock No. 714-7080
Mfr. Part No.SMAJ188A-TR
HK$2.771
Each (In a Pack of 25)
units
Single Uni-Directional 388V 209V Surface Mount DO-214AC (SMA) 188V 2 400W 6A Yes 1 -55 °C +150 °C
RS Stock No. 725-8720
Mfr. Part No.PRTR5V0U2X,215
BrandNexperia
HK$4.059
Each (In a Pack of 20)
units
Complex Array Uni-Directional - 6V Surface Mount SOT-143B 5.5V 4 - - Yes 2 -40 °C +85 °C
RS Stock No. 919-6374
Mfr. Part No.1.5KE200CA
HK$5.817
Each (In a Bag of 600)
units
Single Bi-Directional 353V 190V Through Hole DO-201 171V 2 1500W 28A - 1 -65 °C +175 °C
RS Stock No. 168-6206
Mfr. Part No.SM6T200CA
HK$1.298
Each (On a Reel of 2500)
units
Single Bi-Directional 353V 190V Surface Mount DO-214AA (SMB) 171V 2 600W 11.3A - 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. 166-3683
Mfr. Part No.SMCJ33A
HK$1.741
Each (On a Reel of 3000)
units
Single Uni-Directional 53.3V 36.7V Surface Mount DO-214AB (SMC) 33V 2 1500W 28.2A - 1 -65 °C +150 °C
RS Stock No. 699-8073
Mfr. Part No.SMBJ6.0CA-E3/52
BrandVishay
HK$2.573
Each (In a Pack of 20)
units
Single Bi-Directional 11.4V 6.67V Surface Mount DO-214AA (SMB) 6V 2 600W 52.6A Yes 1 -55 °C +150 °C
RS Stock No. 773-4536
Mfr. Part No.CD143A-SR70
BrandBourns
HK$7.172
Each (In a Pack of 10)
units
Complex Array Uni-Directional 7V 85V Surface Mount SOT-143 70V 4 - 24A Yes 4 -55 °C +150 °C
RS Stock No. 145-2752
Mfr. Part No.SMBJ130CA-E3/52
BrandVishay
HK$2.002
Each (On a Reel of 750)
units
Single Bi-Directional 209V 144V Surface Mount DO-214AA (SMB) 130V 2 600W 2.9A - 1 -55 °C +150 °C
RS Stock No. 637-8337
Mfr. Part No.1.5KE15CA-E3/54
BrandVishay
HK$6.646
Each (In a Pack of 5)
units
Single Bi-Directional 21.2V 14.3V Through Hole 1.5KE 12.8V 2 1500W 70.8A - 1 -55 °C +175 °C
RS Stock No. 486-1360
Mfr. Part No.SM6T200CA
HK$4.494
Each (In a Pack of 5)
units
Single Bi-Directional 353V 190V Surface Mount DO-214AA (SMB) 171V 2 600W 11.3A - 1 -55 °C +150 °C
RS Stock No. 168-7998
Mfr. Part No.ESDALC5-1BT2
HK$1.133
Each (On a Reel of 12000)
units
Single Bi-Directional 17.5V 5.8V Surface Mount SOD-882T 5V 2 150W 9A Yes 1 -55 °C +150 °C