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 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
RS Stock No. 509-954
Mfr. Part No.PESD3V3S2UAT,215
BrandNexperia
€0.036
Each (In a Pack of 20)
units
Common Cathode Uni-Directional 20V 5.2V 18A Surface Mount SOT-23 (TO-236AB) 3.3V 2µA 3 330W Yes 2 -65 °C
RS Stock No. 710-4976
Mfr. Part No.SMAJ5.0A-E3/61
BrandVishay
€0.216
Each (In a Pack of 25)
units
Single Uni-Directional 9.2V 6.4V 43.5A Surface Mount DO-214AC (SMA) 5V 800µA 2 400W - 1 -55 °C
RS Stock No. 178-5064
Mfr. Part No.BZW04-13B
€0.172
Each (On a Reel of 1000)
units
Single Bi-Directional 27.2V 14.3V 85A Through Hole DO-15 12.8V 5µA 2 400W - 1 -65 °C
RS Stock No. 918-9531
Mfr. Part No.5KP33A-E3/54
BrandVishay
€1.168
Each (On a Reel of 800)
units
Single Uni-Directional 53.3V 36.7V 93.8A Through Hole P600 33V 2µA 2 5000W Yes 1 -55 °C
RS Stock No. 166-3014
Mfr. Part No.SMBJ12A
€0.075
Each (On a Reel of 3000)
units
Single Uni-Directional 19.9V 13.3V 30.2A Surface Mount DO-214AA (SMB) 12V 1µA 2 600W - 1 -65 °C
RS Stock No. 486-0115
Mfr. Part No.BZW06-15B
€0.396
Each (In a Pack of 10)
units
Single Bi-Directional 32.5V 17.1V 123A Through Hole DO-15 15.3V 1µA 2 600W - 1 -65 °C
RS Stock No. 877-2813
Mfr. Part No.RBO40-40G-TR
€2.77
Each (In a Pack of 5)
units
Single Bi-Directional, Uni-Directional 40V 22V 37.5A Surface Mount D2PAK (TO-263) 20V 100µA 3 1500W - 1 -40 °C
RS Stock No. 902-6587
Mfr. Part No.1N6279A-E3/54
BrandVishay
€0.30
Each (In a Pack of 25)
units
Single Uni-Directional 30.6V 20.9V 49A Through Hole 1.5KE 18.8V 1µA 2 1500W Yes 1 -55 °C
RS Stock No. 628-8363
Mfr. Part No.SMBJ7.5CA-E3/52
BrandVishay
€0.25
Each (In a Pack of 5)
units
Single Bi-Directional 12.9V 8.33V 46.5A Surface Mount DO-214AA (SMB) 7.5V 200µA 2 600W - 1 -55 °C
RS Stock No. 806-1961
Mfr. Part No.P6KE18CA
€0.273
Each (In a Pack of 20)
units
Single Bi-Directional 25.2V 17.1V 24A Through Hole DO-15 15.3V 5µA 2 600W - 1 -
RS Stock No. 806-2028
Mfr. Part No.SMBJ30CA
€0.214
Each (On a Tape of 50)
units
Single Bi-Directional 48.4V 33.3V 12.4A Surface Mount DO-214AA (SMB) 30V 5µA 2 600W - 1 -55 °C
RS Stock No. 786-2943
Mfr. Part No.ESD9P5.0ST5G
€0.10
Each (In a Pack of 50)
units
Single Uni-Directional 9.8V 5.8V 1A Surface Mount SOD-923 5V 1µA 2 0.15W Yes 1 -55 °C
RS Stock No. 714-7018
Mfr. Part No.BZW50-12B
€2.475
Each (In a Pack of 2)
units
Single Bi-Directional 28V 13.3V 2143A Through Hole R 6 12V 5µA 2 5000W - 1 -65 °C
RS Stock No. 828-9876
Mfr. Part No.LFTVS18-1F3
€0.604
Each (In a Pack of 25)
units
Single Uni-Directional 19V 16V 1A Surface Mount Flip-Chip 12V 250nA 4 350W Yes 1 -
RS Stock No. 802-2364
Mfr. Part No.SMBJ6V0CA
€0.254
Each (On a Tape of 50)
units
Single Bi-Directional 10.3V 6.67V 58.3A Surface Mount DO-214AA (SMB) 6V 800µA 2 600W - 1 -55 °C
RS Stock No. 903-5503
Mfr. Part No.1.5KE15CA
€0.09
Each (On a Tape of 1200)
units
Single Bi-Directional 21.2V 14.3V 71A Through Hole DO-201 12.8V 5µA 2 1500W - 1 -55 °C
RS Stock No. 165-2293
Mfr. Part No.P6KE15CA-E3/54
BrandVishay
€0.188
Each (On a Reel of 4000)
units
Single Bi-Directional 21.2V 14.3V 28.3A Through Hole DO-15 12.8V 1µA 2 600W - 1 -55 °C
RS Stock No. 509-368
Mfr. Part No.PESD5V0S2UAT,215
BrandNexperia
€0.036
Each (In a Pack of 20)
units
Common Cathode Uni-Directional 20V 6.4V 15A Surface Mount SOT-23 (TO-236AB) 5V 1µA 3 260W Yes 2 -65 °C
RS Stock No. 170-0829
Mfr. Part No.SLVU2.8.TCT
BrandSemtech
€0.546
Each (On a Reel of 3000)
units
Single Uni-Directional 15V - 24A Surface Mount SOT-23 2.8V 1µA 3 400W Yes 1 -55 °C
RS Stock No. 543-8422
Mfr. Part No.P6KE20CA
€0.12
Each (In a Pack of 5)
units
Single Bi-Directional 27.7V 19V 22A Through Hole DO-15 17V 5µA 2 600W - 1 -65 °C
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