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. 182-7369
Mfr. Part No.D15V0M1U2LP3-7
SGD0.152
Each (In a Pack of 100)
units
Single Uni-Directional 24V 15.5V Surface Mount X3-DFN0603 15V 2 75W 3A Yes 1 -65 °C +150 °C
RS Stock No. 168-6860
Mfr. Part No.BZW06-19B
SGD0.334
Each (On a Tape of 1000)
units
Single Bi-Directional 39.3V 20.9V Through Hole DO-15 18.8V 2 600W 102A - 1 -65 °C +175 °C
RS Stock No. 192-4287
Mfr. Part No.HSP051-4M5
SGD0.442
Each (In a Pack of 50)
units
Array Uni-Directional 13.7V 5.7V Surface Mount μDFN 5V 5 - 3A Yes 4 -40 °C +150 °C
RS Stock No. 162-1498
Mfr. Part No.SMBJ7.5D-M3/H
BrandVishay
SGD0.247
Each (On a Reel of 750)
units
- Uni-Directional 12.7V 8.46V Surface Mount DO-214AA (SMB) 7.5V 2 600W 47.2A - - -55 °C +150 °C
RS Stock No. 165-6127
Mfr. Part No.SMBJ16A-E3/52
BrandVishay
SGD0.216
Each (On a Reel of 750)
units
Single Uni-Directional 26V 17.8V Surface Mount DO-214AA (SMB) 16V 2 600W 23.1A - 1 -55 °C +150 °C
RS Stock No. 192-1083
Mfr. Part No.SMA4F33AY
SGD0.49
Each (In a Pack of 25)
units
Single Uni-Directional 69.7V 36.7V Surface Mount DO221-AC 33V 2 400W 33A Yes 1 -55 °C +175 °C
RS Stock No. 171-4157
Mfr. Part No.SMCJ24CA
BrandLittelfuse
SGD0.401
Each (On a Reel of 3000)
units
Single Bi-Directional 38.9V 26.7V Surface Mount DO-214AB (SMC) 24V 2 1500W 38.6A Yes 1 -65 °C +150 °C
RS Stock No. 169-9054
Mfr. Part No.SMAJ22CA R3
SGD0.157
Each (On a Reel of 1800)
units
Single Bi-Directional 35.5V 24.4V Surface Mount DO-214AC (SMA) 22V 2 - 11.3A Yes 1 -55 °C +150 °C
RS Stock No. 808-0329
Mfr. Part No.SMCJ28A
SGD0.781
Each (In a Pack of 20)
units
Single Uni-Directional 45.4V 31.1V Surface Mount DO-214AB (SMC) 28V 2 1500W 33A - 1 - +150 °C
RS Stock No. 508-747
Mfr. Part No.PESD5V0U2BT,215
BrandNexperia
SGD0.542
Each (In a Pack of 20)
units
Series Bi-Directional - 5.5V Surface Mount SOT-23 (TO-236AB) 5V 3 - - Yes 2 -65 °C +150 °C
RS Stock No. 249-987
Mfr. Part No.ESDA5V3L
SGD0.39
Each (In a Pack of 10)
units
Common Anode Uni-Directional - 5.3V Surface Mount SOT-23 3V 3 300W - Yes 2 -40 °C +125 °C
New
RS Stock No. 208-5166
Mfr. Part No.SMB6F40A
SGD0.146
Each (On a Reel of 5000)
units
Single Uni-Directional 64.5V 49V Surface Mount SMB Flat - 2 600W - - 1 - -
RS Stock No. 171-4138
Mfr. Part No.SMBJ14A
BrandLittelfuse
SGD0.282
Each (On a Reel of 3000)
units
Single Uni-Directional 23.2V 15.6V Surface Mount DO-214AA (SMB) 14V 2 600W 25.9A Yes 1 -65 °C +150 °C
RS Stock No. 691-0843
Mfr. Part No.SMF05C.TCT
BrandSemtech
SGD1.102
Each (In a Pack of 10)
units
Common Anode Uni-Directional 12.5V 6V Surface Mount SOT-363 (SC-70) 5V 6 100W 8A Yes 5 -55 °C +125 °C
RS Stock No. 919-0240
Mfr. Part No.MSP3V3-M3/89A
BrandVishay
SGD0.09
Each (On a Reel of 4500)
units
Single Uni-Directional 11V 4.1V Surface Mount μSMP 3.3V 2 100W 75A Yes 1 -55 °C +150 °C
New
RS Stock No. 219-0152
Mfr. Part No.SMAJ48CAHE3_A/H
BrandVishay
SGD0.265
Each (In a Pack of 50)
units
Single Bi-Directional, Uni-Directional 77.4V 53.3V Surface Mount DO-214AC (SMA) - 2 400W - - 1 - -
RS Stock No. 110-7740
Mfr. Part No.ESD102U102ELSE6327XTSA1
BrandInfineon
SGD0.167
Each (In a Pack of 100)
units
Single Uni-Directional 11V - Surface Mount TSSLP - 2 - - Yes 1 -55 °C +125 °C
RS Stock No. 714-7103
Mfr. Part No.SMAJ43A-TR
SGD0.49
Each (In a Pack of 25)
units
Single Uni-Directional 91V 47.8V Surface Mount DO-214AC (SMA) 43V 2 400W 25A Yes 1 -55 °C +150 °C
RS Stock No. 145-3510
Mfr. Part No.MMBZ6V2ALT1G
SGD0.049
Each (On a Reel of 3000)
units
Common Anode Uni-Directional 8.7V 5.89V Surface Mount SOT-23 3V 3 24W 2.7A Yes 2 -55 °C +150 °C
RS Stock No. 921-7428
Mfr. Part No.824500261
SGD0.404
Each (In a Pack of 50)
units
Single Uni-Directional 42.1V 30.4V Surface Mount DO-214AC (SMA) - 2 400W 40A - 1 -65 °C +150 °C