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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Beskrivning Pris Diode Configuration Direction Type Maximum Clamping Voltage Minimum Breakdown Voltage Maximum Peak Pulse Current Mounting Type Package Type Maximum Reverse Stand-off Voltage Maximum Reverse Leakage Current Pin Count Peak Pulse Power Dissipation ESD Protection Number of Elements per Chip Minimum Operating Temperature
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Single Bi-Directional 53.9V 37.1V 27.8A Through Hole 1.5KE 33.3V 1µA 2 1500W Yes 1 -55 °C
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Single Bi-Directional 53.9V 37.1V 27.8A Through Hole 1.5KE 33.3V 1µA 2 1500W Yes 1 -55 °C
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Tillv. art.nrSMF5V0A-E3-08
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Single Uni-Directional 9.2V 6.4V 21.7A Surface Mount DO-219AB 5V 400µA 2 1000W Yes 1 -55 °C
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Single Uni-Directional 9.2V 6.4V 21.7A Surface Mount DO-219AB 5V 400µA 2 1000W Yes 1 -55 °C
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Single Uni-Directional 14.5V 9.5V 103A Through Hole 1.5KE 8.5V 10µA 2 1500W Yes 1 -55 °C
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Single Bi-Directional 14.5V 9.5V 103A Through Hole 1.5KE 8.5V 10µA 2 1500W Yes 1 -55 °C
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Tillv. art.nrSMBJ24A-E3/52
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Single Uni-Directional 38.9V 26.7V 15.4A Surface Mount DO-214AA (SMB) 24V 1µA 2 600W - 1 -55 °C
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Tillv. art.nrSMBJ24A-E3/52
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Single Uni-Directional 38.9V 26.7V 15.4A Surface Mount DO-214AA (SMB) 24V 1µA 2 600W - 1 -55 °C
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Tillv. art.nr1.5KE170CA-E3/54
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Single Bi-Directional 234V 162V 6.4A Through Hole 1.5KE 145V 1µA 2 1500W Yes 1 -55 °C
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Single Bi-Directional 234V 162V 6.4A Through Hole 1.5KE 145V 1µA 2 1500W Yes 1 -55 °C
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Single Bi-Directional 14.5V 9.5V 103A Through Hole 1.5KE 8.5V 10µA 2 1500W Yes 1 -55 °C
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Tillv. art.nrSA30A-E3/54
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Tillv. art.nrGSOT03C-E3-08
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Dual Bi-Directional 7.5V 4V 30A Surface Mount SOT-23 3.3V 100µA 3 509W Yes 1 -55 °C
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Tillv. art.nr1.5KE180CA-E3/54
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Single Bi-Directional 246V 171V 6.1A Through Hole 1.5KE 154V 1µA 2 1500W Yes 1 -55 °C
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Single Uni-Directional 38.9V 26.7V 129A Through Hole P600 24V 2µA 2 5000W - 1 -55 °C
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Single Uni-Directional 246V 171V 2.4A Through Hole DO-204AC 154V 1µA 2 600W - 1 -55 °C
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