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. 812-0212
Mfr. Part No.TPD6E001RSER
SGD0.742
Each (In a Pack of 25)
units
Complex Array Uni-Directional 100V 11V Surface Mount UQFN - 10 - - Yes 6 -40 °C +85 °C
RS Stock No. 146-0637
Mfr. Part No.P4SMA27A
SGD0.122
Each (On a Reel of 7500)
units
Single Uni-Directional 37.5V 25.7V Surface Mount DO-214AC (SMA) 23.1V 2 400W 11.2A - 1 -65 °C +150 °C
RS Stock No. 486-4230
Mfr. Part No.1.5KE220CA
SGD1.848
Each (In a Pack of 5)
units
Single Bi-Directional 388V 209V Through Hole DO-201 188V 2 1500W 26A - 1 -65 °C +175 °C
RS Stock No. 509-156
Mfr. Part No.PESD3V3L2BT,215
BrandNexperia
SGD0.522
Each (In a Pack of 20)
units
Series Bi-Directional 26V 5.8V Surface Mount SOT-23 (TO-236AB) 3.3V 3 350W 15A Yes 2 -65 °C +150 °C
RS Stock No. 165-9842
Mfr. Part No.SMBJ18CA
BrandLittelfuse
SGD0.165
Each (On a Reel of 3000)
units
Single Bi-Directional 29.2V 20V Surface Mount DO-214AA (SMB) 18V 2 600W 20.6A - 1 -65 °C +150 °C
RS Stock No. 163-0974
Mfr. Part No.MMBZ18VALT1G
SGD0.049
Each (On a Reel of 3000)
units
Common Anode Uni-Directional 25V 17.1V Surface Mount SOT-23 - 3 40W 1.6A Yes 2 -55 °C +150 °C
RS Stock No. 145-8782
Mfr. Part No.SMBJ33CA-TR
SGD0.17
Each (On a Reel of 2500)
units
Single Bi-Directional 69.7V 36.7V Surface Mount DO-214AA (SMB) 33V 2 600W 57A - 1 -55 °C +150 °C
RS Stock No. 123-1427
Mfr. Part No.P4SMA27A
SGD0.149
Each (In a Pack of 100)
units
Single Uni-Directional 37.5V 25.7V Surface Mount DO-214AC (SMA) 23.1V 2 400W 11.2A - 1 -65 °C +150 °C
RS Stock No. 802-2437
Mfr. Part No.SMCJ150A
SGD0.669
Each (In a Pack of 20)
units
Single Uni-Directional 243V 167V Surface Mount DO-214AB (SMC) 150V 2 1500W 6.2A - 1 - +150 °C
RS Stock No. 168-6250
Mfr. Part No.1.5KE62A
SGD0.376
Each (On a Tape of 600)
units
Single Uni-Directional 111V 58.9V Through Hole DO-201 53V 2 1500W 90A - 1 -65 °C +175 °C
RS Stock No. 102-2281
Mfr. Part No.NUP2105LT1G
SGD0.148
Each (On a Reel of 3000)
units
Series Bi-Directional 44V 26.2V Surface Mount SOT-23 24V 3 350W 8A Yes 2 -55 °C +150 °C
RS Stock No. 805-4434
Mfr. Part No.PACDN006MR
SGD0.931
Each (On a Tape of 25)
units
Array Bi-Directional 13V - Surface Mount MSOP - 8 0.2W - Yes 12 -40 °C +85 °C
RS Stock No. 920-9152
Mfr. Part No.SMA6J5.0CA-TR
SGD0.273
Each (On a Reel of 5000)
units
Single Bi-Directional 13.4V 6.4V Surface Mount DO-214AC (SMA) 5V 2 600W 298A - 1 -55 °C +175 °C
RS Stock No. 486-4319
Mfr. Part No.1.5KE33CA
SGD1.198
Each (In a Pack of 5)
units
Single Bi-Directional 59V 31.4V Through Hole DO-201 28.2V 2 1500W 169A - 1 -65 °C +175 °C
RS Stock No. 795-6890
Mfr. Part No.SMA6J5.0CA-TR
SGD0.665
Each (In a Pack of 25)
units
Single Bi-Directional 13.4V 6.4V Surface Mount DO-214AC (SMA) 5V 2 600W 298A - 1 -55 °C +175 °C
RS Stock No. 801-0235
Mfr. Part No.ESD9C3.3ST5G
SGD0.121
Each (In a Pack of 100)
units
Single Uni-Directional - 5V Surface Mount SOD-923 3.3V 2 0.15W - Yes 1 -55 °C +150 °C
RS Stock No. 145-3509
Mfr. Part No.MMBZ20VALT1G
SGD0.055
Each (On a Reel of 3000)
units
Common Anode Uni-Directional 28V 19V Surface Mount SOT-23 17V 3 40W 1.4A Yes 2 -55 °C +150 °C
RS Stock No. 714-7077
Mfr. Part No.SMAJ12A-TR
SGD0.515
Each (In a Pack of 25)
units
Single Uni-Directional 25.3V 13.3V Surface Mount DO-214AC (SMA) 12V 2 400W 91A Yes 1 -55 °C +150 °C
RS Stock No. 792-5599
Mfr. Part No.ESD9X5.0ST5G
SGD0.099
Each (In a Pack of 100)
units
Single Uni-Directional 12.3V 6.2V Surface Mount SOD-923 5V 2 107W 8.7A Yes 1 -55 °C +150 °C
RS Stock No. 764-5593
Mfr. Part No.SMBJ18CA
BrandLittelfuse
SGD0.434
Each (In a Pack of 10)
units
Single Bi-Directional 29.2V 20V Surface Mount DO-214AA (SMB) 18V 2 600W 20.6A - 1 -65 °C +150 °C