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. 714-7190
Mfr. Part No.SMBJ28A-TR
kr 2,796
Each (In a Pack of 25)
Units
Single Uni-Directional 59V 31.1V 68A Surface Mount DO-214AA (SMB) 28V 200nA 2 600W - 1 -55 °C
RS Stock No. 919-6444
Mfr. Part No.SM6T33CA
kr 1,172
Each (On a Reel of 2500)
Units
Single Bi-Directional 59V 31.4V 68A Surface Mount DO-214AA (SMB) 28.2V 200nA 2 600W - 1 -55 °C
RS Stock No. 168-6818
Mfr. Part No.SMAJ33A-TR
kr 0,86
Each (On a Reel of 5000)
Units
Single Uni-Directional 69.7V 36.7V 33A Surface Mount DO-214AC (SMA) 33V 200nA 2 400W Yes 1 -55 °C
RS Stock No. 145-8614
Mfr. Part No.SMBJ28A-TR
kr 0,977
Each (On a Reel of 2500)
Units
Single Uni-Directional 59V 31.1V 68A Surface Mount DO-214AA (SMB) 28V 200nA 2 600W - 1 -55 °C
RS Stock No. 714-1032
Mfr. Part No.SMAJ33A-TR
kr 2,902
Each (In a Pack of 20)
Units
Single Uni-Directional 69.7V 36.7V 33A Surface Mount DO-214AC (SMA) 33V 200nA 2 400W Yes 1 -55 °C
RS Stock No. 486-5019
Mfr. Part No.SM6T33CA
kr 3,001
Each (In a Pack of 10)
Units
Single Bi-Directional 59V 31.4V 68A Surface Mount DO-214AA (SMB) 28.2V 200nA 2 600W - 1 -55 °C
RS Stock No. 795-7098
Mfr. Part No.BZW50-15B
kr 24,525
Each (In a Pack of 2)
Units
Single Bi-Directional 35V 16.6V 1714A Through Hole R 6 15V 5µA 2 5000W - 1 -
RS Stock No. 877-2835
Mfr. Part No.SMCJ22A-TR
kr 3,713
Each (In a Pack of 25)
Units
Single Uni-Directional 48.3V 24.4V 207A Surface Mount SMC 22V 1µA 2 1500W Yes 1 -55 °C
RS Stock No. 165-6690
Mfr. Part No.BZW50-15B
kr 17,949
Each (On a Tape of 100)
Units
Single Bi-Directional 35V 16.6V 1714A Through Hole R 6 15V 5µA 2 5000W - 1 -
RS Stock No. 485-6992
Mfr. Part No.BZW50-22
kr 24,72
Each
Units
Single Uni-Directional 51V 24.4V 1177A Through Hole R 6 22V 5µA 2 5000W - 1 -65 °C
RS Stock No. 168-8851
Mfr. Part No.1.5KE33ARL
kr 1,386
Each (On a Reel of 1900)
Units
Single Uni-Directional 59V 31.4V 169A Through Hole DO-201 28.2V 1µA 2 1500W - 1 -
RS Stock No. 486-0648
Mfr. Part No.1.5KE300A
kr 8,494
Each (In a Pack of 5)
Units
Single Uni-Directional 529V 285V 19A Through Hole DO-201 256V 1µA 2 1500W - 1 -65 °C
RS Stock No. 168-7303
Mfr. Part No.SM6T30CAY
kr 0,575
Each (On a Reel of 2500)
Units
Single Bi-Directional 53.5V 28.5V 75A Surface Mount DO-214AA (SMB) 25.6V 1µA 2 600W - 1 -55 °C
RS Stock No. 178-5068
Mfr. Part No.BZW04-28B
kr 1,779
Each (On a Reel of 1000)
Units
Single Bi-Directional 59V 31.4V 39A Through Hole DO-15 28.2V 1µA 2 400W - 1 -
RS Stock No. 486-4303
Mfr. Part No.1.5KE33A
kr 4,187
Each (In a Pack of 10)
Units
Single Uni-Directional 59V 31.4V 169A Through Hole DO-201 28.2V 1µA 2 1500W - 1 -65 °C
RS Stock No. 165-5498
Mfr. Part No.SMCJ22A-TR
kr 1,466
Each (On a Reel of 2500)
Units
Single Uni-Directional 48.3V 24.4V 207A Surface Mount SMC 22V 1µA 2 1500W Yes 1 -55 °C
RS Stock No. 919-6365
Mfr. Part No.1.5KE18CA
kr 2,931
Each (In a Bag of 600)
Units
Single Bi-Directional 32.5V 17.1V 308A Through Hole DO-201 15.3V 1µA 2 1500W - 1 -65 °C
RS Stock No. 486-4319
Mfr. Part No.1.5KE33CA
kr 6,66
Each (In a Pack of 5)
Units
Single Bi-Directional 59V 31.4V 169A Through Hole DO-201 28.2V 1µA 2 1500W - 1 -65 °C
RS Stock No. 485-9266
Mfr. Part No.P6KE200A
kr 3,649
Each (In a Pack of 10)
Units
Single Uni-Directional 353V 190V 11.3A Through Hole DO-15 171V 1µA 2 600W - 1 -65 °C
RS Stock No. 250-050
Mfr. Part No.ESDA6V1-4BC6
kr 4,726
Each (In a Pack of 10)
Units
Complex Array Bi-Directional - 6.1V - Surface Mount SOT-23 3V 1µA 6 80W Yes 4 -40 °C