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) and the effects of arcs, EFT, ESD, inductive load switching, and even lightning strikes. RS Components offer an extensive range of TVS diodes from a multitude of brands across the industry, including Bourns, Littelfuse, ON Semiconductor, STMicroelectronics, Taiwan Semiconductor, Vishay, and more.

TVS diodes are offered in both through-hole and surface mount packages and 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. You can learn more in our TVS diodes guide.

What are the benefits of using transient voltage suppressor diodes?

Transient voltage suppressors 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, EFT (electrical fast transients), the ESD (electrostatic discharge) created by data lines and electronic circuits, and even lightning strikes.

What 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 is the operating voltage that the data or power line should not exceed. Breakdown voltage 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 higher than the reverse standoff voltage.

Typical applications of TVS diodes

  • TVS diodes have numerous applications but are primarily used 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. 628-7304
Mfr. Part No.SMBJ5.0A-E3/52
BrandVishay
$0.61
Each (In a Pack of 5)
units
Single Uni-Directional 9.2V 6.4V Surface Mount DO-214AA (SMB) 5V 2 600W 65.2A - 1 -55 °C +150 °C
RS Stock No. 165-2455
Mfr. Part No.P6KE33CA-E3
BrandVishay
$0.578
Each (On a Reel of 4000)
units
Single Bi-Directional 45.7V 31.4V Through Hole DO-15 28.2V 2 600W 13.1A - 1 -55 °C +175 °C
RS Stock No. 178-7375
Mfr. Part No.ESDCAN03-2BWY
$0.131
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. 636-5555
Mfr. Part No.SA15A-E3/54
BrandVishay
$1.842
Each (In a Pack of 5)
units
Single Uni-Directional 24.4V 16.7V Through Hole DO-15 15V 2 500W 20.5A - 1 -55 °C +175 °C
RS Stock No. 165-2507
Mfr. Part No.SMBJ5.0A-E3/52
BrandVishay
$0.23
Each (On a Reel of 750)
units
Single Uni-Directional 9.2V 6.4V Surface Mount DO-214AA (SMB) 5V 2 600W 65.2A - 1 -55 °C +150 °C
RS Stock No. 124-1110
Mfr. Part No.ESDCAN03-2BWY
$0.412
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. 714-7024
Mfr. Part No.BZW50-180B
$4.75
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. 169-0729
Mfr. Part No.1.5KE440CA
BrandLittelfuse
$0.584
Each (On a Reel of 1200)
units
Single Bi-Directional 602V 418V Through Hole DO-201 376V 2 1500W 2.5A Yes 1 -55 °C +175 °C
RS Stock No. 179-1122
Mfr. Part No.SMBJ30A-13-F
$0.145
Each (On a Reel of 3000)
units
Single Uni-Directional 48.4V 33.3V Surface Mount DO-214AA (SMB) 30V 2 600W 12.4A - 1 -55 °C +150 °C
RS Stock No. 168-6863
Mfr. Part No.BZW50-180B
$3.158
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. 165-4896
Mfr. Part No.1.5KE10CA-E3/54
BrandVishay
$0.668
Each (On a Tape of 1400)
units
Single Bi-Directional 14.5V 9.5V Through Hole 1.5KE 8.5V 2 1500W 103A Yes 1 -55 °C +175 °C
RS Stock No. 902-6354
Mfr. Part No.1.5KE10CA-E3/54
BrandVishay
$0.956
Each (In a Pack of 10)
units
Single Bi-Directional 14.5V 9.5V Through Hole 1.5KE 8.5V 2 1500W 103A Yes 1 -55 °C +175 °C
RS Stock No. 638-8637
Mfr. Part No.P6KE33CA-E3/54
BrandVishay
$0.994
Each (In a Pack of 10)
units
Single Bi-Directional 45.7V 31.4V Through Hole DO-15 28.2V 2 600W 13.1A - 1 -55 °C +175 °C
RS Stock No. 486-4381
Mfr. Part No.1.5KE400CA
$4.088
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. 919-6393
Mfr. Part No.1.5KE400CA
$0.715
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. 764-5433
Mfr. Part No.1.5KE440CA
BrandLittelfuse
$1.181
Each (In a Pack of 10)
units
Single Bi-Directional 602V 418V Through Hole DO-201 376V 2 1500W 2.5A Yes 1 -55 °C +175 °C
RS Stock No. 823-1738
Mfr. Part No.SMBJ30A-13-F
$0.392
Each (In a Pack of 25)
units
Single Uni-Directional 48.4V 33.3V Surface Mount DO-214AA (SMB) 30V 2 600W 12.4A - 1 -55 °C +150 °C
RS Stock No. 822-8556
Mfr. Part No.SMAJ24CA-13-F
$0.40
Each (In a Pack of 25)
units
Single Bi-Directional 38.9V 26.7V Surface Mount DO-214AC (SMA) 24V 2 400W 10.3A - 1 -55 °C +150 °C
RS Stock No. 903-5468
Mfr. Part No.1.5KE51A
$0.126
Each (On a Tape of 1200)
units
Single Uni-Directional 70.1V 48.5V Through Hole DO-201 43.6V 2 1500W 21.4A - 1 -55 °C +150 °C
RS Stock No. 249-050
Mfr. Part No.DALC208SC6
$0.444
Each (In a Pack of 10)
units
Complex Array - - - Surface Mount SOT-23 - 6 - - - 4 -55 °C +150 °C