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. 812-0219
Mfr. Part No.TPD4S010DQAR
SGD0.827
Each (On a Tape of 25)
units
Complex Array Uni-Directional - 9V Surface Mount USON 5.5V 10 25W 2.5A Yes 4 -40 °C +85 °C
RS Stock No. 764-5593
Mfr. Part No.SMBJ18CA
BrandLittelfuse
SGD0.387
Each (In a Pack of 10)
units
Single Bi-Directional 29.2V 20V Surface Mount DO-214AA (SMB) 18V 2 600W 20.6A - 1 -65 °C +150 °C
RS Stock No. 168-6247
Mfr. Part No.1.5KE220CA
SGD1.019
Each (On a Tape of 600)
units
Single Bi-Directional 388V 209V Through Hole DO-201 188V 2 1500W 26A - 1 -65 °C +175 °C
RS Stock No. 687-8231
Mfr. Part No.MMBZ20VALT1G
SGD0.274
Each (In a Pack of 25)
units
Common Anode Uni-Directional 28V 19V Surface Mount SOT-23 17V 3 40W 1.4A Yes 2 -55 °C +150 °C
RS Stock No. 163-2150
Mfr. Part No.ESD9C3.3ST5G
SGD0.054
Each (On a Reel of 8000)
units
Single Uni-Directional - 5V Surface Mount SOD-923 3.3V 2 0.15W - Yes 1 -55 °C +150 °C
RS Stock No. 166-0638
Mfr. Part No.PESD5V0S1UL,315
BrandNexperia
SGD0.116
Each (On a Reel of 10000)
units
Single Uni-Directional 20V 6.4V Surface Mount SOD-882 5V 2 150W 15A Yes 1 -65 °C +150 °C
RS Stock No. 918-9341
Mfr. Part No.SA5.0A-E3/54
BrandVishay
SGD0.432
Each (On a Reel of 4000)
units
Single Uni-Directional 9.2V 6.4V Through Hole DO-15 5V 2 500W 54.3A - 1 -55 °C +175 °C
RS Stock No. 162-7876
Mfr. Part No.TPD4S010DQAR
SGD0.475
Each (On a Reel of 3000)
units
Complex Array Uni-Directional - 9V Surface Mount USON 5.5V 10 25W 2.5A Yes 4 -40 °C +85 °C
RS Stock No. 801-0235
Mfr. Part No.ESD9C3.3ST5G
SGD0.132
Each (In a Pack of 100)
units
Single Uni-Directional - 5V Surface Mount SOD-923 3.3V 2 0.15W - Yes 1 -55 °C +150 °C
RS Stock No. 714-7077
Mfr. Part No.SMAJ12A-TR
SGD0.469
Each (In a Pack of 25)
units
Single Uni-Directional 25.3V 13.3V Surface Mount DO-214AC (SMA) 12V 2 400W 91A Yes 1 -55 °C +150 °C
RS Stock No. 802-2437
Mfr. Part No.SMCJ150A
SGD0.804
Each (In a Pack of 20)
units
Single Uni-Directional 243V 167V Surface Mount DO-214AB (SMC) 150V 2 1500W 6.2A - 1 - +150 °C
RS Stock No. 903-5519
Mfr. Part No.1.5KE20CA
SGD0.153
Each (On a Tape of 1200)
units
Single Bi-Directional 27.7V 19V Through Hole DO-201 17V 2 1500W 54A - 1 -55 °C +150 °C
RS Stock No. 166-1559
Mfr. Part No.PESD5V0L5UV,115
BrandNexperia
SGD0.167
Each (On a Reel of 4000)
units
Common Anode Uni-Directional 12V 6.4V Surface Mount SSMini 5V 6 25W 2.5A Yes 5 -65 °C +150 °C
RS Stock No. 170-0812
Mfr. Part No.RCLAMP3654P.TCT
BrandSemtech
SGD1.125
Each (On a Reel of 3000)
units
Complex Array Uni-Directional 30V 6.5V Surface Mount SLP EP 5.5V 6 350W 4A Yes 2 -55 °C +125 °C
RS Stock No. 166-3160
Mfr. Part No.SMCJ150A
SGD0.333
Each (On a Reel of 3000)
units
Single Uni-Directional 243V 167V Surface Mount DO-214AB (SMC) 150V 2 1500W 6.2A - 1 - +150 °C
RS Stock No. 123-1427
Mfr. Part No.P4SMA27A
SGD0.157
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. 166-1411
Mfr. Part No.PESD3V3L5UY,115
BrandNexperia
SGD0.14
Each (On a Reel of 3000)
units
Common Anode Uni-Directional 12V 5.3V Surface Mount UMT 3.3V 6 25W 2.5A Yes 5 -65 °C +150 °C
RS Stock No. 166-2526
Mfr. Part No.P6KE200A
SGD0.249
Each (On a Reel of 4000)
units
Single Uni-Directional 274V 190V Through Hole DO-15 171V 2 600W 2.2A - 1 -65 °C +175 °C
RS Stock No. 709-9063
Mfr. Part No.TPD3E001DRLR
SGD0.606
Each (In a Pack of 10)
units
Complex Array - - - Surface Mount SOT-553 - 5 - - - 3 -40 °C +85 °C
RS Stock No. 509-667
Mfr. Part No.PESD5V2S2UT,215
BrandNexperia
SGD0.502
Each (In a Pack of 20)
units
Common Anode Uni-Directional 20V 6.4V Surface Mount SOT-23 (TO-236AB) 5.2V 3 260W 15A Yes 2 -65 °C +150 °C
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