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. 146-0603
Mfr. Part No.SM712.TCT
BrandSemtech
£0.588
Each (On a Reel of 3000)
Units
Series Bi-Directional 26V 13.3V 17A Surface Mount SOT-23 12V 20µA 3 400W Yes 2 -55 °C
RS Stock No. 486-4347
Mfr. Part No.1.5KE36CA
£0.61
Each (In a Pack of 5)
Units
Single Bi-Directional 64.3V 34.2V 156A Through Hole DO-201 30.8V 1µA 2 1500W - 1 -65 °C
RS Stock No. 638-7640
Mfr. Part No.5KP15A-E3/54
BrandVishay
£1.73
Each (In a Pack of 5)
Units
Single Uni-Directional 24.4V 16.7V 205A Through Hole P600 15V 2µA 2 5000W - 1 -55 °C
RS Stock No. 918-9391
Mfr. Part No.5KP15A-E3
BrandVishay
£1.12
Each (On a Reel of 800)
Units
Single Uni-Directional 24.4V 16.7V 205A Through Hole P600 15V 2µA 2 5000W - 1 -55 °C
RS Stock No. 919-6396
Mfr. Part No.1.5KE36CA
£0.305
Each (In a Bag of 600)
Units
Single Bi-Directional 64.3V 34.2V 156A Through Hole DO-201 30.8V 1µA 2 1500W - 1 -65 °C
RS Stock No. 919-0913
Mfr. Part No.SMAJ5.0A-E3/61
BrandVishay
£0.072
Each (On a Reel of 1800)
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. 802-2257
Mfr. Part No.SMBJ120CA
£0.261
Each (In a Pack of 50)
Units
Single Bi-Directional 193V 133V 3.1A Surface Mount DO-214AA (SMB) 120V 5µA 2 600W - 1 -55 °C
RS Stock No. 710-4976
Mfr. Part No.SMAJ5.0A-E3/61
BrandVishay
£0.183
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. 919-0290
Mfr. Part No.SMAJ5.0A-E3/5A
BrandVishay
£0.062
Each (On a Reel of 7500)
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. 162-3815
Mfr. Part No.824015
£0.467
Each (On a Reel of 3000)
Units
Complex Array Uni-Directional 8.5V 6.1V 12A Surface Mount SOT-23 5V 5µA 6 - Yes 4 -55 °C
RS Stock No. 166-3010
Mfr. Part No.SMBJ120CA
£0.094
Each (On a Reel of 3000)
Units
Single Bi-Directional 193V 133V 3.1A Surface Mount DO-214AA (SMB) 120V 5µA 2 600W - 1 -55 °C
RS Stock No. 710-3484
Mfr. Part No.SMAJ5.0A-E3/5A
BrandVishay
£0.238
Each (In a Pack of 10)
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. 754-6231
Mfr. Part No.824015
£0.686
Each (In a Pack of 5)
Units
Complex Array Uni-Directional 8.5V 6.1V 12A Surface Mount SOT-23 5V 5µA 6 - Yes 4 -55 °C
RS Stock No. 918-9373
Mfr. Part No.1.5KE33CA-E3/54
BrandVishay
£0.336
Each (On a Reel of 1400)
Units
Single Bi-Directional 45.7V 31.4V 32.8A Through Hole 1.5KE 28.2V 1µA 2 1500W - 1 -55 °C
RS Stock No. 638-1305
Mfr. Part No.1.5KE33CA-E3/54
BrandVishay
£0.492
Each (In a Pack of 5)
Units
Single Bi-Directional 45.7V 31.4V 32.8A Through Hole 1.5KE 28.2V 1µA 2 1500W - 1 -55 °C
RS Stock No. 751-4969
Mfr. Part No.SM05-7
£0.073
Each (In a Pack of 50)
Units
Common Anode Uni-Directional 20.6V 6.2V 17A Surface Mount SOT-23 5V 10µA 3 300W Yes 2 -55 °C
RS Stock No. 166-0299
Mfr. Part No.SA5.0A
BrandLittelfuse
£0.12
Each (On a Reel of 4000)
Units
Single Uni-Directional 9.2V 6.4V 55.4A Through Hole DO-204AC 5V 600µA 2 500W - 1 -55 °C
RS Stock No. 122-1212
Mfr. Part No.SM05-7
£0.051
Each (On a Reel of 3000)
Units
Common Anode Uni-Directional 20.6V 6.2V 17A Surface Mount SOT-23 5V 10µA 3 300W Yes 2 -55 °C
RS Stock No. 918-9385
Mfr. Part No.1.5KE160CA-E3/54
BrandVishay
£0.336
Each (On a Reel of 1400)
Units
Single Bi-Directional 219V 152V 6.8A Through Hole 1.5KE 136V 1µA 2 1500W - 1 -55 °C
RS Stock No. 764-5521
Mfr. Part No.SA5.0A
BrandLittelfuse
£0.253
Each (In a Pack of 10)
Units
Single Uni-Directional 9.2V 6.4V 55.4A Through Hole DO-204AC 5V 600µA 2 500W - 1 -55 °C
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