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. 123-1427
Mfr. Part No.P4SMA27A
SGD0.132
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. 146-0637
Mfr. Part No.P4SMA27A
SGD0.111
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. 123-1438
Mfr. Part No.P6SMB33CA TRTB
SGD0.145
Each (In a Pack of 100)
units
Single Bi-Directional 45.7V 31.4V Surface Mount DO-214AA (SMB) 28.2V 2 600W 13.2A - 1 -65 °C +175 °C
RS Stock No. 165-5008
Mfr. Part No.P6SMB33CA TRTB
SGD0.126
Each (On a Reel of 3200)
units
Single Bi-Directional 45.7V 31.4V Surface Mount DO-214AA (SMB) 28.2V 2 600W 13.2A - 1 -65 °C +175 °C
RS Stock No. 165-5038
Mfr. Part No.P4SMA36A
SGD0.135
Each (On a Reel of 7500)
units
Single Uni-Directional 49.9V 34.2V Surface Mount DO-214AC (SMA) 30.8V 2 400W 8.4A - 1 -65 °C +150 °C
RS Stock No. 165-5039
Mfr. Part No.P4SMA39A
SGD0.119
Each (On a Reel of 7500)
units
Single Uni-Directional 53.9V 37.1V Surface Mount DO-214AC (SMA) 33.3V 2 400W 7.8A - 1 -65 °C +150 °C
RS Stock No. 123-1426
Mfr. Part No.P4SMA36CA
SGD0.162
Each (In a Pack of 100)
units
Single Bi-Directional 49.9V 34.2V Surface Mount DO-214AC (SMA) 30.8V 2 400W 8A - 1 -65 °C +150 °C
RS Stock No. 165-5040
Mfr. Part No.P4SMA220A
SGD0.119
Each (On a Reel of 7500)
units
Single Uni-Directional 328V 209V Surface Mount DO-214AC (SMA) 185V 2 400W 1.22A - 1 -65 °C +175 °C
RS Stock No. 165-4996
Mfr. Part No.3KSMC12A TRTB
SGD0.947
Each (On a Reel of 3500)
units
Single Uni-Directional 19.9V 13.3V Surface Mount DO-214AB (SMC) - 2 3000W 151A - 1 -65 °C +150 °C
RS Stock No. 123-1428
Mfr. Part No.P4SMA36A
SGD0.157
Each (In a Pack of 100)
units
Single Uni-Directional 49.9V 34.2V Surface Mount DO-214AC (SMA) 30.8V 2 400W 8.4A - 1 -65 °C +150 °C
RS Stock No. 123-1424
Mfr. Part No.P4SMA27CA
SGD0.156
Each (In a Pack of 100)
units
Single Bi-Directional 37.5V 25.7V Surface Mount DO-214AC (SMA) 23.1V 2 400W 10.9A - 1 -65 °C +150 °C
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. 123-1437
Mfr. Part No.P6SMB200A TRTB
SGD0.143
Each (In a Pack of 100)
units
Single Uni-Directional 274V 190V Surface Mount DO-214AA (SMB) 171V 2 600W 2.2A - 1 -65 °C +150 °C
RS Stock No. 123-1425
Mfr. Part No.P4SMA33CA
SGD0.16
Each (In a Pack of 100)
units
Single Bi-Directional 45.7V 31.4V Surface Mount DO-214AC (SMA) 28.2V 2 400W 9A - 1 -65 °C +150 °C
RS Stock No. 146-0639
Mfr. Part No.P4SMA200A
SGD0.111
Each (On a Reel of 7500)
units
Single Uni-Directional 274V 160V Surface Mount DO-214AC (SMA) 171V 2 400W 1.53A - 1 -65 °C +175 °C
RS Stock No. 146-0643
Mfr. Part No.P6SMB39CA TRTB
SGD0.109
Each (On a Reel of 3200)
units
Single Bi-Directional 53.9V 37.1V Surface Mount DO-214AA (SMB) 33.3V 2 600W 11.2A - 1 -65 °C +175 °C
RS Stock No. 123-1442
Mfr. Part No.3KSMC12A TRTB
SGD1.25
Each (In a Pack of 10)
units
Single Uni-Directional 19.9V 13.3V Surface Mount DO-214AB (SMC) - 2 3000W 151A - 1 -65 °C +150 °C
RS Stock No. 165-5035
Mfr. Part No.P4SMA27CA
SGD0.142
Each (On a Reel of 7500)
units
Single Bi-Directional 37.5V 25.7V Surface Mount DO-214AC (SMA) 23.1V 2 400W 10.9A - 1 -65 °C +150 °C
RS Stock No. 146-0636
Mfr. Part No.P4SMA33CA
SGD0.145
Each (On a Reel of 7500)
units
Single Bi-Directional 45.7V 31.4V Surface Mount DO-214AC (SMA) 28.2V 2 400W 9A - 1 -65 °C +150 °C
RS Stock No. 146-0642
Mfr. Part No.P6SMB200A TRTB
SGD0.101
Each (On a Reel of 3200)
units
Single Uni-Directional 274V 190V Surface Mount DO-214AA (SMB) 171V 2 600W 2.2A - 1 -65 °C +150 °C