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).

TVS diodes are offered in both through hole and surface mount packages. They 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.

What are the benefits of using transient voltage suppressor diodes?

TVS diodes 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, lightning strikes, EFT (electrical fast transients) and the ESD (electrostatic discharge) created by data lines and electronic circuits.

What do I need 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 - This is the operating voltage that the data or power line should not exceed.
  • Breakdown voltage - This 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 high than the reverse standoff voltage

Applications:

TVS diodes have numerous applications but are well suited 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. 177-5425
Mfr. Part No.TBU-CA085-100-WH
BrandBourns
MYR5.415
Each (On a Reel of 3000)
units
Single Bi-Directional 850V - Surface Mount DFN 20V 2 - 0.2A - 1 -55 °C +125 °C
RS Stock No. 717-3477
Mfr. Part No.TBU-CA085-100-WH
BrandBourns
MYR7.38
Each (In a Pack of 5)
units
Single Bi-Directional 850V - Surface Mount DFN 20V 2 - 0.2A - 1 -55 °C +125 °C
RS Stock No. 767-3728
Mfr. Part No.CDSOT23-SM712
BrandBourns
MYR5.174
Each (In a Pack of 10)
units
Series Bi-Directional 26V 7.5V Surface Mount SOT-23 12V 3 400W 17A Yes 2 -55 °C +150 °C
RS Stock No. 165-3019
Mfr. Part No.CDSOT23-SM712
BrandBourns
MYR2.58
Each (On a Reel of 3000)
units
Series Bi-Directional 26V 7.5V Surface Mount SOT-23 12V 3 400W 17A Yes 2 -55 °C +150 °C
RS Stock No. 767-3759
Mfr. Part No.SMAJ5.0A
BrandBourns
MYR1.235
Each (In a Pack of 50)
units
Single Uni-Directional 3.5V 6.4V Surface Mount DO-214AC (SMA) 5V 2 400W 35A Yes 1 -55 °C +150 °C
RS Stock No. 146-0658
Mfr. Part No.CDSOT23-SRV05-4
BrandBourns
MYR1.846
Each (On a Reel of 3000)
units
Complex Array Uni-Directional 15V 6V Surface Mount SOT-23 5V 6 500W 30A Yes 4 -55 °C +150 °C
RS Stock No. 165-3056
Mfr. Part No.SMAJ5.0A
BrandBourns
MYR0.311
Each (On a Reel of 5000)
units
Single Uni-Directional 9.2V 6.4V Surface Mount DO-214AC (SMA) 5V 2 400W 43.5A - 1 -65 °C +150 °C
RS Stock No. 794-7993
Mfr. Part No.CGA0402MLC-24G
BrandBourns
MYR1.009
Each (In a Pack of 50)
units
Single - 25V - Surface Mount MLC - 2 - - Yes 1 -40 °C +85 °C
RS Stock No. 773-4577
Mfr. Part No.CDSOT23-SRV05-4
BrandBourns
MYR3.96
Each (In a Pack of 10)
units
Complex Array Uni-Directional 15V 6V Surface Mount SOT-23 5V 6 500W 30A Yes 4 -55 °C +150 °C
RS Stock No. 172-7037
Mfr. Part No.CGA0402MLC-24G
BrandBourns
MYR0.72
Each (On a Reel of 10000)
units
Single - 25V - Surface Mount MLC - 2 - - Yes 1 -40 °C +85 °C
RS Stock No. 146-0652
Mfr. Part No.SMAJ28A
BrandBourns
MYR0.321
Each (On a Reel of 5000)
units
Single Uni-Directional 28V 31.1V Surface Mount DO-214AC (SMA) 28V 2 400W 35A Yes 1 -55 °C +150 °C
RS Stock No. 767-3721
Mfr. Part No.SMAJ12A
BrandBourns
MYR1.064
Each (In a Pack of 50)
units
Single Uni-Directional 3.5V 13.3V Surface Mount DO-214AC (SMA) 12V 2 400W 35A Yes 1 -55 °C +150 °C
RS Stock No. 767-3771
Mfr. Part No.SMBJ28CA
BrandBourns
MYR1.058
Each (In a Pack of 50)
units
Single Bi-Directional - 31.1V Surface Mount DO-214AA (SMB) 28V 2 600W 50A Yes 1 -55 °C +150 °C
RS Stock No. 717-3439
Mfr. Part No.TBU-CA065-200-WH
BrandBourns
MYR7.38
Each (In a Pack of 5)
units
Single Bi-Directional 650V - Surface Mount DFN 20V 2 - 0.4A - 1 -55 °C +125 °C
RS Stock No. 174-2484
Mfr. Part No.SMAJ36CA
BrandBourns
MYR0.376
Each (On a Reel of 5000)
units
Single Bi-Directional - 40V Surface Mount DO-214AC 495V 2 400W - Yes 1 -55 °C +150 °C
RS Stock No. 165-3020
Mfr. Part No.SMBJ30A
BrandBourns
MYR0.406
Each (On a Reel of 3000)
units
Single Uni-Directional 48.4V 33.3V Surface Mount DO-214AA (SMB) 30V 2 600W 12.4A - 1 -65 °C +150 °C
RS Stock No. 146-0653
Mfr. Part No.SMBJ28CA
BrandBourns
MYR0.383
Each (On a Reel of 3000)
units
Single Bi-Directional - 31.1V Surface Mount DO-214AA (SMB) 28V 2 600W 50A Yes 1 -55 °C +150 °C
RS Stock No. 767-3775
Mfr. Part No.SMBJ30A
BrandBourns
MYR1.133
Each (In a Pack of 50)
units
Single Uni-Directional 3.5V 33.3V Surface Mount DO-214AA (SMB) 30V 2 600W 50A Yes 1 -55 °C +150 °C
RS Stock No. 767-3731
Mfr. Part No.SMAJ28A
BrandBourns
MYR0.947
Each (In a Pack of 50)
units
Single Uni-Directional 28V 31.1V Surface Mount DO-214AC (SMA) 28V 2 400W 35A Yes 1 -55 °C +150 °C
RS Stock No. 177-5418
Mfr. Part No.TBU-CA065-200-WH
BrandBourns
MYR5.415
Each (On a Reel of 3000)
units
Single Bi-Directional 650V - Surface Mount DFN 20V 2 - 0.4A - 1 -55 °C +125 °C