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. 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. 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. 725-8795
Mfr. Part No.PESD5V0S1UL,315
BrandNexperia
SGD0.419
Each (In a Pack of 50)
units
Single Uni-Directional 20V 6.4V Surface Mount SOD-882 5V 2 150W 15A Yes 1 -65 °C +150 °C
RS Stock No. 786-2987
Mfr. Part No.MSQA6V1W5T2G
SGD0.368
Each (In a Pack of 50)
units
Common Anode Uni-Directional - 6.1V Surface Mount SOT-353 (SC-70) 3V 5 150W - Yes 4 -55 °C +150 °C
RS Stock No. 919-6383
Mfr. Part No.1.5KE33CA
SGD0.487
Each (In a Bag of 600)
units
Single Bi-Directional 59V 31.4V Through Hole DO-201 28.2V 2 1500W 169A - 1 -65 °C +175 °C
RS Stock No. 918-9345
Mfr. Part No.SA12A-E3/54
BrandVishay
SGD0.497
Each (On a Reel of 4000)
units
Single Uni-Directional 19.9V 13.3V Through Hole DO-15 12V 2 500W 25.1A - 1 -55 °C +175 °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. 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. 166-1416
Mfr. Part No.PESD3V3L2BT,215
BrandNexperia
SGD0.178
Each (On a Reel of 3000)
units
Series Bi-Directional 26V 5.8V Surface Mount SOT-23 (TO-236AB) 3.3V 3 350W 15A Yes 2 -65 °C +150 °C
RS Stock No. 792-5599
Mfr. Part No.ESD9X5.0ST5G
SGD0.074
Each (In a Pack of 100)
units
Single Uni-Directional 12.3V 6.2V Surface Mount SOD-923 5V 2 107W 8.7A Yes 1 -55 °C +150 °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. 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. 509-469
Mfr. Part No.PESD5V0L5UV,115
BrandNexperia
SGD0.478
Each (In a Pack of 20)
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. 509-156
Mfr. Part No.PESD3V3L2BT,215
BrandNexperia
SGD0.511
Each (In a Pack of 20)
units
Series Bi-Directional 26V 5.8V Surface Mount SOT-23 (TO-236AB) 3.3V 3 350W 15A Yes 2 -65 °C +150 °C
RS Stock No. 714-7200
Mfr. Part No.SMBJ33CA-TR
SGD0.505
Each (In a Pack of 25)
units
Single Bi-Directional 69.7V 36.7V Surface Mount DO-214AA (SMB) 33V 2 600W 57A - 1 -55 °C +150 °C
RS Stock No. 710-3563
Mfr. Part No.SMCJ54A-E3/57T
BrandVishay
SGD0.598
Each (In a Pack of 10)
units
Single Uni-Directional 87.1V 60V Surface Mount SMC 54V 2 1500W 17.2A - 1 -55 °C +150 °C
RS Stock No. 805-4434
Mfr. Part No.PACDN006MR
SGD0.912
Each (On a Tape of 25)
units
Array Bi-Directional 13V - Surface Mount MSOP - 8 0.2W - Yes 12 -40 °C +85 °C
RS Stock No. 162-9452
Mfr. Part No.MSQA6V1W5T2G
SGD0.093
Each (On a Reel of 3000)
units
Common Anode Uni-Directional - 6.1V Surface Mount SOT-353 (SC-70) 3V 5 150W - Yes 4 -55 °C +150 °C
RS Stock No. 919-6396
Mfr. Part No.1.5KE36CA
SGD0.609
Each (In a Bag of 600)
units
Single Bi-Directional 64.3V 34.2V Through Hole DO-201 30.8V 2 1500W 156A - 1 -65 °C +175 °C
RS Stock No. 165-5880
Mfr. Part No.ESDA18-1K
SGD0.114
Each (On a Reel of 3000)
units
Single Uni-Directional 34V 18V Surface Mount SOD-523 15V 2 400W 12A Yes 1 -40 °C +150 °C
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