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. 827-0443
Mfr. Part No.DT1452-02SO-7
TWD9.50
Each (In a Pack of 50)
units
Array Uni-Directional 7.5V 7V Surface Mount SOT-23 5.5V 3 0.3W 12A Yes 5 -55 °C +150 °C
RS Stock No. 165-8625
Mfr. Part No.MMBZ15VDL-7-F
TWD1.90
Each (On a Reel of 3000)
units
Common Cathode Uni-Directional 21.2V 14.3V Surface Mount SOT-23 12.8V 3 40W 1.9A Yes 2 -65 °C +150 °C
RS Stock No. 165-8741
Mfr. Part No.DT1452-02SO-7
TWD3.20
Each (On a Reel of 3000)
units
Array Uni-Directional 7.5V 7V Surface Mount SOT-23 5.5V 3 0.3W 12A Yes 5 -55 °C +150 °C
RS Stock No. 827-0402
Mfr. Part No.DESD32VS2SO-7
TWD11.60
Each (In a Pack of 50)
units
Common Anode Uni-Directional 50V 34V Surface Mount SOT-23 32V 3 200W 4A Yes 2 -65 °C +150 °C
RS Stock No. 169-7489
Mfr. Part No.DESD32VS2SO-7
TWD4.10
Each (On a Reel of 3000)
units
Common Anode Uni-Directional 50V 34V Surface Mount SOT-23 32V 3 200W 4A Yes 2 -65 °C +150 °C
RS Stock No. 823-3059
Mfr. Part No.MMBZ15VDL-7-F
TWD3.20
Each (In a Pack of 100)
units
Common Cathode Uni-Directional 21.2V 14.3V Surface Mount SOT-23 12.8V 3 40W 1.9A Yes 2 -65 °C +150 °C
RS Stock No. 921-1240
Mfr. Part No.SD12-7
TWD3.80
Each (In a Pack of 100)
units
Single Uni-Directional 25V 13.3V Surface Mount SOD-323 12V 2 350W 15A Yes 1 -55 °C +150 °C
RS Stock No. 822-8571
Mfr. Part No.SMAJ36CA-13-F
TWD9.90
Each (In a Pack of 25)
units
Single Bi-Directional 58.1V 40V Surface Mount DO-214AC (SMA) 36V 2 400W 6.9A - 1 -55 °C +150 °C
RS Stock No. 146-0959
Mfr. Part No.SD12-7
TWD2.00
Each (On a Reel of 3000)
units
Single Uni-Directional 25V 13.3V Surface Mount SOD-323 12V 2 350W 15A Yes 1 -55 °C +150 °C
RS Stock No. 165-8682
Mfr. Part No.SMBJ7.0A-13-F
TWD3.10
Each (On a Reel of 3000)
units
Single Uni-Directional 12V 7.78V Surface Mount DO-214AA (SMB) 7V 2 600W 50A - 1 -55 °C +150 °C
RS Stock No. 885-5643
Mfr. Part No.SMBJ7.0A-13-F
TWD9.90
Each (In a Pack of 50)
units
Single Uni-Directional 12V 7.78V Surface Mount DO-214AA (SMB) 7V 2 600W 50A - 1 -55 °C +150 °C
RS Stock No. 122-2903
Mfr. Part No.SMAJ36CA-13-F
TWD3.00
Each (On a Reel of 5000)
units
Single Bi-Directional 58.1V 40V Surface Mount DO-214AC (SMA) 36V 2 400W 6.9A - 1 -55 °C +150 °C
RS Stock No. 179-1162
Mfr. Part No.SMAJ5.0CA-13-F
TWD3.00
Each (On a Reel of 5000)
units
Single Bi-Directional 9.2V 6.4V Surface Mount DO-214AC (SMA) 5V 2 400W 43.5A - 1 -55 °C +150 °C
RS Stock No. 751-4994
Mfr. Part No.SMAJ28A-13-F
TWD8.90
Each (In a Pack of 50)
units
Single Uni-Directional 45.4V 31.1V Surface Mount DO-214AC (SMA) 28V 2 400W 8.8A - 1 -55 °C +150 °C
RS Stock No. 179-1120
Mfr. Part No.SMBJ15A-13-F
TWD3.10
Each (On a Reel of 3000)
units
Single Uni-Directional 24.4V 16.7V Surface Mount DO-214AA (SMB) 15V 2 600W 24A - 1 -55 °C +150 °C
RS Stock No. 885-5634
Mfr. Part No.SMBJ12CA-13-F
TWD9.30
Each (In a Pack of 50)
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. 751-4969
Mfr. Part No.SM05-7
TWD9.50
Each (In a Pack of 50)
units
Common Anode Uni-Directional 20.6V 6.2V Surface Mount SOT-23 5V 3 300W 17A Yes 2 -55 °C +150 °C
RS Stock No. 827-0412
Mfr. Part No.DRTR5V0U2SR-7
TWD9.70
Each (In a Pack of 50)
units
Array Uni-Directional - 6V Surface Mount SOT-143 5.5V 4 0.4W 5A Yes 5 -65 °C +150 °C
RS Stock No. 165-8680
Mfr. Part No.SMBJ12CA-13-F
TWD3.40
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. 121-9539
Mfr. Part No.DLP05LC-7-F
TWD4.60
Each (On a Reel of 3000)
units
Single Uni-Directional 11V 6V Surface Mount SOT-23 5V 3 300W 17A Yes 1 -55 °C +150 °C