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. 800-9957
Mfr. Part No.CM1231-02SO
€0.30
Each (In a Pack of 25)
units
Array Bi-Directional 9V - 2.3A Surface Mount SOT-23 - - 6 0.22W Yes 2 -40 °C
RS Stock No. 165-7165
Mfr. Part No.SMAJ16A-E3/61
BrandVishay
€0.086
Each (On a Reel of 1800)
units
Single Uni-Directional 26V 17.8V 15.4A Surface Mount DO-214AC (SMA) 16V 1µA 2 400W - 1 -55 °C
RS Stock No. 811-9944
Mfr. Part No.P4SMA400A-E3/61
BrandVishay
€0.313
Each (On a Tape of 20)
units
Single Uni-Directional 548V 380V 0.55A Surface Mount DO-214AC (SMA) 342V 1µA 2 400W - 1 -65 °C
RS Stock No. 921-7232
Mfr. Part No.824550601
€1.316
Each (In a Pack of 10)
units
Single Uni-Directional 96.8V 70.2V 300A Surface Mount DO-214AB (SMC) - 2µA 2 3000W - 1 -65 °C
RS Stock No. 171-4288
Mfr. Part No.SMCJ36CA
BrandLittelfuse
€0.463
Each (In a Pack of 10)
units
Single Bi-Directional 58.1V 40V 25.9A Surface Mount DO-214AB (SMC) 36V 1µA 2 1500W Yes 1 -65 °C
RS Stock No. 170-0833
Mfr. Part No.SM12.TCT
BrandSemtech
€0.188
Each (On a Reel of 3000)
units
Common Anode Uni-Directional 19V 13.3V 12A Surface Mount SOT-23 12V 1µA 3 300W Yes 2 -55 °C
RS Stock No. 162-9666
Mfr. Part No.SZP6SMB39CAT3G
BrandLittelfuse
€0.251
Each (On a Reel of 2500)
units
Single Bi-Directional 53.9V 37.1V 11.2A Surface Mount DO-214AA (SMB) 33.3V 5µA 2 600W Yes 1 -65 °C
RS Stock No. 134-9591
Mfr. Part No.SZESD7102BT1G
€0.074
Each (In a Pack of 25)
units
Dual Bi-Directional 30V 16.5V 16A Surface Mount SOT-416 (SC-75) - 1µA 3 - Yes 2 -55 °C
RS Stock No. 920-6279
Mfr. Part No.DVIULC6-4SC6
€0.237
Each (On a Reel of 3000)
units
Complex Array Uni-Directional 12V 6V 5A Surface Mount SOT-23 5V - 6 - - 4 -40 °C
RS Stock No. 165-7170
Mfr. Part No.SMAJ6.0CA-E3/61
BrandVishay
€0.072
Each (On a Reel of 1800)
units
Single Bi-Directional 10.3V 6.67V 38.8A Surface Mount DO-214AC (SMA) 6V 800µA 2 400W - 1 -55 °C
RS Stock No. 795-7149
Mfr. Part No.SMP30-270
€0.55
Each (In a Pack of 10)
units
Single Bi-Directional - - 30A Surface Mount DO-214AC (SMA) 270V 5µA 2 - - 1 -
RS Stock No. 687-3053
Mfr. Part No.SMAJ10CA R3
€0.153
Each (In a Pack of 20)
units
Single Bi-Directional 17V 11.1V 23.5A Surface Mount DO-214AC (SMA) 10V 10µA 2 - Yes 1 -55 °C
RS Stock No. 183-5573
Mfr. Part No.UMZ8.2NUMTL
BrandROHM
€0.078
Each (In a Pack of 100)
units
- Uni-Directional - 7.76V - Surface Mount SOT-323FL 5V 500nA 3 200mW Yes 2 -
New
RS Stock No. 192-4787
Mfr. Part No.SMB6F28AY
€0.107
Each (On a Reel of 5000)
units
Single Uni-Directional 45.4 V, 59 V 31.1V 13.8 A, 68 A Surface Mount SMB Flat (DO221-AA) 28V 1µA 2 600W Yes 1 -55 °C
RS Stock No. 802-2308
Mfr. Part No.SMBJ22A
€0.169
Each (In a Pack of 50)
units
Single Uni-Directional 35.5V 24.4V 16.9A Surface Mount DO-214AA (SMB) 22V 5µA 2 600W - 1 -55 °C
RS Stock No. 802-2244
Mfr. Part No.SMBJ100CA
€0.291
Each (On a Tape of 50)
units
Single Bi-Directional 162V 111V 3.7A Surface Mount DO-214AA (SMB) 100V 5µA 2 600W - 1 -55 °C
RS Stock No. 170-0808
Mfr. Part No.RCLAMP0503F.TCT
BrandSemtech
€0.355
Each (On a Reel of 3000)
units
Single Uni-Directional 25V 6V 6A Surface Mount SOT-353 (SC-70) 5V 3µA 5 150W Yes 1 -55 °C
RS Stock No. 163-7318
Mfr. Part No.ESDZL5-1F4
€0.022
Each (On a Reel of 15000)
units
Single Uni-Directional 10V - 7A Surface Mount 0201 5.5V 100nA 2 60W Yes 1 -55 °C
RS Stock No. 187-1495
Mfr. Part No.CDSOT23-T08LC-Q
BrandBourns
€0.392
Each (In a Pack of 25)
units
Array Bi-Directional 13.4V 8.5 (Max)V 34A Surface Mount SOT-23 8V 10µA 3 - Yes 2 -55 °C
RS Stock No. 691-0638
Mfr. Part No.ECLAMP2410P.TCT
BrandSemtech
€0.576
Each (In a Pack of 5)
units
Complex Array Bi-Directional - 6V - Surface Mount SLP EP 5V 500nA 16 - Yes 6 -40 °C
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