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. 919-6529
Mfr. Part No.BZW50-33B
$3.12
Each (In a Bag of 100)
units
Single Bi-Directional 76V 36.6V Through Hole R 6 33V 2 5000W 789A - 1 -65 °C +175 °C
RS Stock No. 714-7030
Mfr. Part No.BZW50-33B
$4.25
Each (In a Pack of 2)
units
Single Bi-Directional 76V 36.6V Through Hole R 6 33V 2 5000W 789A - 1 -65 °C +175 °C
RS Stock No. 919-6535
Mfr. Part No.SMBJ5.0CA-TR
$0.176
Each (On a Reel of 2500)
units
Single Bi-Directional 13.4V 6.4V Surface Mount DO-214AA (SMB) 5V 2 600W 298A - 1 -55 °C +150 °C
RS Stock No. 714-7229
Mfr. Part No.SMBJ5.0CA-TR
$0.50
Each (In a Pack of 25)
units
Single Bi-Directional 13.4V 6.4V Surface Mount DO-214AA (SMB) 5V 2 600W 298A - 1 -55 °C +150 °C
RS Stock No. 624-7693
Mfr. Part No.USBLC6-2SC6
$0.572
Each (In a Pack of 10)
units
Complex Array Uni-Directional 17V 6V Surface Mount SOT-23 5V 6 - 5A Yes 2 -40 °C +125 °C
RS Stock No. 920-6266
Mfr. Part No.USBLC6-2SC6
$0.229
Each (On a Reel of 3000)
units
Complex Array Uni-Directional 17V 6V Surface Mount SOT-23 5V 6 - 5A Yes 2 -40 °C +125 °C
RS Stock No. 486-4369
Mfr. Part No.1.5KE39CA
$0.975
Each (In a Pack of 10)
units
Single Bi-Directional 69.7V 37.1V Through Hole DO-201 33.3V 2 1500W 143A - 1 -65 °C +175 °C
RS Stock No. 919-6399
Mfr. Part No.1.5KE39CA
$0.505
Each (In a Bag of 600)
units
Single Bi-Directional 69.7V 37.1V Through Hole DO-201 33.3V 2 1500W 143A - 1 -65 °C +175 °C
RS Stock No. 714-7024
Mfr. Part No.BZW50-180B
$4.25
Each (In a Pack of 2)
units
Single Bi-Directional 410V 200V Through Hole R 6 180V 2 5000W 146A - 1 -65 °C +175 °C
RS Stock No. 168-6863
Mfr. Part No.BZW50-180B
$3.12
Each (On a Tape of 100)
units
Single Bi-Directional 410V 200V Through Hole R 6 180V 2 5000W 146A - 1 -65 °C +175 °C
RS Stock No. 124-1110
Mfr. Part No.ESDCAN03-2BWY
$0.451
Each (In a Pack of 50)
units
Complex Array Bi-Directional 41V 26.5V Surface Mount SOT-323 (SC-70) 24V 3 250W 3.7A Yes 2 -55 °C +175 °C
RS Stock No. 486-4381
Mfr. Part No.1.5KE400CA
$1.64
Each (In a Pack of 5)
units
Single Bi-Directional 706V 380V Through Hole DO-201 342V 2 1500W 14A - 1 -65 °C +175 °C
RS Stock No. 178-7375
Mfr. Part No.ESDCAN03-2BWY
$0.136
Each (On a Reel of 3000)
units
Complex Array Bi-Directional 41V 26.5V Surface Mount SOT-323 (SC-70) 24V 3 250W 3.7A Yes 2 -55 °C +175 °C
RS Stock No. 919-6393
Mfr. Part No.1.5KE400CA
$0.949
Each (In a Bag of 600)
units
Single Bi-Directional 706V 380V Through Hole DO-201 342V 2 1500W 14A - 1 -65 °C +175 °C
RS Stock No. 919-6403
Mfr. Part No.1.5KE440CA
$0.729
Each (In a Bag of 600)
units
Single Bi-Directional 776V 418V Through Hole DO-201 376V 2 1500W 13A - 1 -65 °C +175 °C
RS Stock No. 102-6165
Mfr. Part No.BZW50-33
$3.16
Each (In a Bag of 100)
units
Single Uni-Directional 76V 36.6V Through Hole R 6 33V 2 5000W 789A - 1 -65 °C +175 °C
RS Stock No. 714-1029
Mfr. Part No.SMAJ15A-TR
$0.497
Each (In a Pack of 20)
units
Single Uni-Directional 32.5V 16.7V Surface Mount DO-214AC (SMA) 15V 2 400W 71A Yes 1 -55 °C +150 °C
RS Stock No. 919-6438
Mfr. Part No.BZW50-47B
$3.12
Each (In a Bag of 100)
units
Single Bi-Directional 108V 52V Through Hole R 6 47V 2 5000W 556A - 1 -65 °C +175 °C
RS Stock No. 168-6271
Mfr. Part No.SM6T22CA
$0.235
Each (On a Reel of 2500)
units
Single Bi-Directional 39.3V 20.9V Surface Mount DO-214AA (SMB) 18.8V 2 600W 102A - 1 -55 °C +150 °C
RS Stock No. 920-6373
Mfr. Part No.DALC208SC6
$0.251
Each (On a Reel of 3000)
units
Complex Array - - - Surface Mount SOT-23 - 6 - - - 4 -55 °C +150 °C