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. 823-1748
Mfr. Part No.SMBJ5.0CA-13-F
SGD0.401
Each (In a Pack of 25)
units
Single Bi-Directional 9.2V 6.4V Surface Mount DO-214AA (SMB) 5V 2 600W 65.2A - 1 -55 °C +150 °C
New
RS Stock No. 208-5157
Mfr. Part No.SMB15F6.5A
SGD0.287
Each (On a Reel of 5000)
units
Single Uni-Directional 11.2V 8V Surface Mount SMB Flat - 2 1500W - - 1 - -
RS Stock No. 123-1441
Mfr. Part No.P6SMB180CA TRTB
SGD0.148
Each (In a Pack of 100)
units
Single Bi-Directional 246V 171V Surface Mount DO-214AA (SMB) 154V 2 600W 2.4A - 1 -65 °C +150 °C
RS Stock No. 921-7771
Mfr. Part No.824541261
SGD1.197
Each (In a Pack of 10)
units
Single Bi-Directional 42.1V 30.4V Surface Mount DO-214AB (SMC) - 2 1500W 35.7A - 1 -65 °C +150 °C
RS Stock No. 165-6994
Mfr. Part No.P6KE16CA-E3/54
BrandVishay
SGD0.388
Each (On a Reel of 4000)
units
Single Bi-Directional 22.5V 15.2V Through Hole DO-204AC 13.6V 2 600W 26.7A - 1 -55 °C +175 °C
RS Stock No. 165-7397
Mfr. Part No.SMBJ13CA-TR
SGD0.141
Each (On a Reel of 2500)
units
Single Bi-Directional 27.2V 14.4V Surface Mount DO-214AA (SMB) 13V 2 600W 147A - 1 -55 °C +150 °C
RS Stock No. 877-2560
Mfr. Part No.1.5KE400ARL
SGD1.02
Each (In a Pack of 25)
units
Single Uni-Directional 706V 380V Through Hole DO-201 342V 2 1500W 14A - 1 - +175 °C
RS Stock No. 710-3500
Mfr. Part No.SMBJ13CA-E3/5B
BrandVishay
SGD0.775
Each (In a Pack of 20)
units
Single Bi-Directional 21.5V 14.4V Surface Mount DO-214AA (SMB) 13V 2 600W 27.9A - 1 -55 °C +150 °C
RS Stock No. 791-6309
Mfr. Part No.NUP2301MW6T1G
SGD0.504
Each (On a Tape of 25)
units
Complex Array Bi-Directional 1.25V - Surface Mount SOT-363 (SC-88) 70V 6 - 2A Yes 2 -55 °C +150 °C
New
RS Stock No. 214-8886
Mfr. Part No.NIV1241MTWTAG
SGD0.885
Each (In a Pack of 20)
units
- - 43V 25V Surface Mount WDFNW6 - 6 - - - - - -
RS Stock No. 165-2909
Mfr. Part No.SMAJ58A-E3/61
BrandVishay
SGD0.151
Each (On a Reel of 1800)
units
Single Uni-Directional 93.6V 64.4V Surface Mount DO-214AC (SMA) 58V 2 400W 4.3A - 1 -55 °C +150 °C
RS Stock No. 206-0322
Mfr. Part No.SMBJ12AQ-13-F
SGD0.249
Each (On a Reel of 3000)
units
Single Bi-Directional, Uni-Directional 19.9V 13.3V Surface Mount DO-214AA (SMB) - 2 600W - - 1 - -
RS Stock No. 795-7029
Mfr. Part No.BZW04-28B
SGD0.65
Each (In a Pack of 10)
units
Single Bi-Directional 59V 31.4V Through Hole DO-15 28.2V 2 400W 39A - 1 - +175 °C
RS Stock No. 805-2835
Mfr. Part No.MMQA27VT1G
SGD0.506
Each (In a Pack of 50)
units
Common Anode Uni-Directional 39V 25.7V Surface Mount SC-74 21V 6 150W - Yes 4 -55 °C +150 °C
RS Stock No. 202-6943
Mfr. Part No.SMF188A
BrandLittelfuse
SGD0.174
Each (On a Reel of 3000)
units
Single Uni-Directional 304V 209V Surface Mount SOD-123FL - 2 1000W - - 1 - -
RS Stock No. 795-8820
Mfr. Part No.SM6T24CAY
SGD1.306
Each (On a Tape of 10)
units
Single Bi-Directional 42.8V 22.8V Surface Mount DO-214AA (SMB) 20.5V 2 600W 93A - 1 -55 °C +150 °C
RS Stock No. 124-1109
Mfr. Part No.ESDCAN02-2BWY
SGD0.444
Each (In a Pack of 50)
units
Complex Array Bi-Directional 44V 28.5V Surface Mount SOT-323 (SC-70) 26.5V 3 250W 3.7A Yes 2 -55 °C +175 °C
RS Stock No. 800-9954
Mfr. Part No.CM1224-04SO
SGD0.804
Each (On a Tape of 25)
units
Array Uni-Directional 10V 6V Surface Mount SOT-23 - 6 0.22W 1A Yes 9 -40 °C +85 °C
RS Stock No. 172-3332
Mfr. Part No.ESDM3051N2T5G
SGD0.14
Each (In a Pack of 500)
units
Single Bi-Directional 6V 5.1V Surface Mount X2DFN 5V 2 - 9.9A Yes 1 -55 °C +150 °C
RS Stock No. 800-8932
Mfr. Part No.1SMA20CAT3G
BrandWickmann
SGD0.442
Each (On a Tape of 50)
units
Single Bi-Directional 32.4V 22.2V Surface Mount DO-214AC (SMA) 20V 2 400W 12.3A Yes 1 -65 °C +150 °C