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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Part Details Brand 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 Dimensions Capacitance Height Length Width Surge Current Rating Maximum Reverse Leakage Current Working Voltage Test Current ESD Voltage Diameter RMS Voltage Automotive Standard
ON Semiconductor NSPM2052MUT5G, Uni-Directional TVS Diode, 3-Pin UDFN ON Semiconductor Single Uni-Directional 9V 5.1V Surface Mount UDFN 5V 3 - 120A Yes 1 -65 °C +150 °C 1.68 x 1.08 x 0.5mm 400pF 0.5mm 1.68mm 1.08mm - 100nA 5V 1mA 8kV - - -
ON Semiconductor NSPU3061N2T5G, Uni-Directional TVS Diode, 2-Pin X2DFN
  • £ 0.043
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ON Semiconductor Single Uni-Directional 6.6V 6.4V Surface Mount X2DFN 6.3V 2 - 30A Yes 1 -65 °C +150 °C 1.05 x 0.65 x 0.35mm 110pF 0.35mm 1.05mm 0.65mm - 1µA 6.3V 1mA 8kV - - -
Bourns CDSOD323-T05S-Q, Uni-Directional TVS Diode, 500W, 2-Pin SOD-323 Bourns Single Uni-Directional 9.8V 6V Surface Mount SOD-323 5V 2 500W 42A Yes 1 -55 °C +150 °C 1.6 x 1.15 x 0.79mm 350pF 0.79mm 1.6mm 1.15mm >24A 10µA 5V 1mA - - - AEC-Q101
Bourns CDSOD323-T05S-Q, Uni-Directional TVS Diode, 500W, 2-Pin SOD-323 Bourns Single Uni-Directional 9.8V 6V Surface Mount SOD-323 5V 2 500W 42A Yes 1 -55 °C +150 °C 1.6 x 1.15 x 0.79mm 350pF 0.79mm 1.6mm 1.15mm >24A 10µA 5V 1mA - - - AEC-Q101
Bourns CDSOT23-T03-Q, Uni-Directional TVS Diode, 3-Pin SOT-323
  • £ 0.121
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Bourns Array Uni-Directional 7V 4V Surface Mount SOT-323 3.3V 3 - 43A Yes 1 -55 °C +150 °C 2.8 x 1.2 x 0.84mm 500pF 0.84mm 2.8mm 1.2mm - 125µA 3.3V 1mA - - - AEC-Q101
Bourns CDSOT23-T03-Q, Uni-Directional TVS Diode, 3-Pin SOT-323 Bourns Array Uni-Directional 7V 4V Surface Mount SOT-323 3.3V 3 - 43A Yes 1 -55 °C +150 °C 2.8 x 1.2 x 0.84mm 500pF 0.84mm 2.8mm 1.2mm - 125µA 3.3V 1mA - - - AEC-Q101
Bourns CDSOT23-T05LC-Q, Dual-Element Bi-Directional TVS Diode, 3-Pin SOT-23 Bourns Array Bi-Directional 9.8V 6 (Max)V Surface Mount SOT-23 5V 3 - 42A Yes 2 -55 °C +150 °C 2.8 x 1.2 x 0.84mm 5pF 0.84mm 2.8mm 1.2mm - 20µA 5V 1mA - - - AEC-Q101
Bourns CDSOT23-T05LC-Q, Dual-Element Bi-Directional TVS Diode, 3-Pin SOT-23 Bourns Array Bi-Directional 9.8V 6 (Max)V Surface Mount SOT-23 5V 3 - 42A Yes 2 -55 °C +150 °C 2.8 x 1.2 x 0.84mm 5pF 0.84mm 2.8mm 1.2mm - 20µA 5V 1mA - - - AEC-Q101
Bourns CDSOT23-T08C-Q, Dual-Element Bi-Directional TVS Diode, 3-Pin SOT-323 Bourns Array Bi-Directional 13.4V 8.5V Surface Mount SOT-323 8V 3 - 34A Yes 2 -55 °C +150 °C 2.8 x 1.2 x 0.84mm 150pF 0.84mm 2.8mm 1.2mm - 10µA 8V 1mA - - - AEC-Q101
Bourns CDSOT23-T08C-Q, Dual-Element Bi-Directional TVS Diode, 3-Pin SOT-323
  • £ 0.121
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Bourns Array Bi-Directional 13.4V 8.5V Surface Mount SOT-323 8V 3 - 34A Yes 2 -55 °C +150 °C 2.8 x 1.2 x 0.84mm 150pF 0.84mm 2.8mm 1.2mm - 10µA 8V 1mA - - - AEC-Q101
Bourns CDSOT23-T08LC-Q, Dual-Element Bi-Directional TVS Diode, 3-Pin SOT-23 Bourns Array Bi-Directional 13.4V 8.5 (Max)V Surface Mount SOT-23 8V 3 - 34A Yes 2 -55 °C +150 °C 2.8 x 1.2 x 0.84mm 5pF 0.84mm 2.8mm 1.2mm - 10µA 8V 1mA - - - AEC-Q101
Bourns CDSOT23-T08LC-Q, Dual-Element Bi-Directional TVS Diode, 3-Pin SOT-23 Bourns Array Bi-Directional 13.4V 8.5 (Max)V Surface Mount SOT-23 8V 3 - 34A Yes 2 -55 °C +150 °C 2.8 x 1.2 x 0.84mm 5pF 0.84mm 2.8mm 1.2mm - 10µA 8V 1mA - - - AEC-Q101
Bourns CDSOT23-T15C-Q, Dual-Element Bi-Directional TVS Diode, 3-Pin SOT-323
  • £ 0.121
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Bourns Array Bi-Directional 24V 16.7V Surface Mount SOT-323 15V 3 - 15A Yes 2 -55 °C +150 °C 2.8 x 1.2 x 0.84mm 60pF 0.84mm 2.8mm 1.2mm - 1µA 15V 1mA - - - AEC-Q101
Bourns CDSOT23-T15C-Q, Dual-Element Bi-Directional TVS Diode, 3-Pin SOT-323 Bourns Array Bi-Directional 24V 16.7V Surface Mount SOT-323 15V 3 - 15A Yes 2 -55 °C +150 °C 2.8 x 1.2 x 0.84mm 60pF 0.84mm 2.8mm 1.2mm - 1µA 15V 1mA - - - AEC-Q101
Bourns PTVS1-380C-TH, Bi-Directional TVS Diode, 2-Pin
  • £ 17.08
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Bourns - Bi-Directional 520 (Typ.)V 401V Through Hole - 380V 2 - 1kA - 1 -55 °C +125 °C 14.5 x 8 x 8mm 120pF 8mm 14.5mm 8mm - - 380V 10mA - - - -
Bourns PTVS1-380C-TH, Bi-Directional TVS Diode, 2-Pin Bourns - Bi-Directional 520 (Typ.)V 401V Through Hole - 380V 2 - 1kA - 1 -55 °C +125 °C 14.5 x 8 x 8mm 120pF 8mm 14.5mm 8mm - - 380V 10mA - - - -
Bourns SM8S24CA-Q, Bi-Directional TVS Diode, 6600W, 2-Pin DO-218 Bourns - Bi-Directional - 26.7V Surface Mount DO-218 24V 2 6600W - Yes 1 -55 °C +175 °C 13.5 x 8.5 x 4.85mm - 4.85mm 13.5mm 8.5mm 170 (Reverse)A 10µA 24V 5mA - - - AEC-Q101
Bourns SM8S24CA-Q, Bi-Directional TVS Diode, 6600W, 2-Pin DO-218 Bourns - Bi-Directional - 26.7V Surface Mount DO-218 24V 2 6600W - Yes 1 -55 °C +175 °C 13.5 x 8.5 x 4.85mm - 4.85mm 13.5mm 8.5mm 170 (Reverse)A 10µA 24V 5mA - - - AEC-Q101
Bourns SM8S33CA-Q, Bi-Directional TVS Diode, 6600W, 2-Pin DO-218 Bourns - Bi-Directional - 36.7V Surface Mount DO-218 33V 2 6600W - Yes 1 -55 °C +175 °C 13.5 x 8.5 x 4.85mm - 4.85mm 13.5mm 8.5mm 124 (Reverse)A 10µA 33V 5mA - - - AEC-Q101
Bourns SM8S33CA-Q, Bi-Directional TVS Diode, 6600W, 2-Pin DO-218 Bourns - Bi-Directional - 36.7V Surface Mount DO-218 33V 2 6600W - Yes 1 -55 °C +175 °C 13.5 x 8.5 x 4.85mm - 4.85mm 13.5mm 8.5mm 124 (Reverse)A 10µA 33V 5mA - - - AEC-Q101
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