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. 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. 815-1020
Mfr. Part No.5KP85A-E3/54
BrandVishay
HK$16.572
Each (In a Pack of 5)
units
Single Uni-Directional 137V 94.4V Through Hole P600 85V 2 5000W 36.5A - 1 -55 °C +175 °C
RS Stock No. 882-9840
Mfr. Part No.NUP3105LT3G
HK$3.182
Each (In a Pack of 25)
units
Common Anode Bi-Directional 66V 35.6V Surface Mount SOT-23 - 3 350W 8A Yes 1 -55 °C +150 °C
RS Stock No. 819-3680
Mfr. Part No.SMBJ130CA-E3/52
BrandVishay
HK$2.384
Each (In a Pack of 20)
units
Single Bi-Directional 209V 144V Surface Mount DO-214AA (SMB) 130V 2 600W 2.9A - 1 -55 °C +150 °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. 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. 249-050
Mfr. Part No.DALC208SC6
HK$2.867
Each (In a Pack of 10)
units
Complex Array - - - Surface Mount SOT-23 - 6 - - - 4 -55 °C +150 °C
RS Stock No. 882-9846
Mfr. Part No.NUP3105LT1G
HK$3.328
Each (In a Pack of 25)
units
Common Anode Bi-Directional 66V 35.6V Surface Mount SOT-23 - 3 350W 8A Yes 1 -55 °C +150 °C
RS Stock No. 145-2753
Mfr. Part No.SMBJ60CA-E3/52
BrandVishay
HK$2.002
Each (On a Reel of 750)
units
Single Bi-Directional 96.8V 66.7V Surface Mount DO-214AA (SMB) 60V 2 600W 6.2A - 1 -55 °C +150 °C
RS Stock No. 166-1167
Mfr. Part No.ESD112B102ELE6327XTMA1
BrandInfineon
HK$0.70
Each (On a Reel of 15000)
units
Single Bi-Directional 44V 7V Surface Mount TSLP - 2 - 3A Yes 1 -55 °C +125 °C
RS Stock No. 145-4207
Mfr. Part No.MMQA12VT1G
HK$0.696
Each (On a Reel of 3000)
units
Common Anode Uni-Directional 17.3V 11.4V Surface Mount SC-74 9.1V 6 150W - Yes 4 -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. 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. 165-2445
Mfr. Part No.SA30A-E3/54
BrandVishay
HK$2.812
Each (On a Reel of 4000)
units
Single Uni-Directional 48.4V 33.3V Through Hole DO-204AC 30V 2 500W 10A Yes 1 -55 °C +175 °C
RS Stock No. 165-2498
Mfr. Part No.SMBJ6.0CA-E3/52
BrandVishay
HK$1.902
Each (On a Reel of 750)
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. 808-0326
Mfr. Part No.SMCJ33A
HK$3.455
Each (In a Pack of 20)
units
Single Uni-Directional 53.3V 36.7V Surface Mount DO-214AB (SMC) 33V 2 1500W 28.1A - 1 - +150 °C
RS Stock No. 828-9879
Mfr. Part No.ESDALC5-1BT2
HK$3.121
Each (In a Pack of 50)
units
Single Bi-Directional 17.5V 5.8V Surface Mount SOD-882T 5V 2 150W 9A Yes 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. 486-4943
Mfr. Part No.SM6T200A
HK$3.79
Each (In a Pack of 5)
units
Single Uni-Directional 353V 190V Surface Mount DO-214AA (SMB) 171V 2 600W 11.3A - 1 -55 °C +150 °C
RS Stock No. 518-0763
Mfr. Part No.SMCJ24CA-E3/57T
BrandVishay
HK$6.972
Each (In a Pack of 10)
units
Single Bi-Directional 38.9V 26.7V Surface Mount SMC 24V 2 1500W 38.6A - 1 -55 °C +150 °C