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. 166-2526
Mfr. Part No.P6KE200A
TWD5.20
Each (On a Reel of 4000)
units
Single Uni-Directional 274V 190V Through Hole DO-15 171V 2 600W 2.2A - 1 -65 °C +175 °C
RS Stock No. 543-8911
Mfr. Part No.P6KE200A
TWD15.80
Each (In a Pack of 5)
units
Single Uni-Directional 274V 190V Through Hole DO-15 171V 2 600W 2.2A - 1 -65 °C +175 °C
RS Stock No. 145-3063
Mfr. Part No.ESD5Z2.5T1G
TWD0.90
Each (On a Reel of 3000)
units
Single Uni-Directional 10.9V 4V Surface Mount SOD-523 2.5V 2 120W 11A Yes 1 -55 °C +150 °C
RS Stock No. 786-2909
Mfr. Part No.ESD5Z2.5T1G
TWD2.00
Each (In a Pack of 100)
units
Single Uni-Directional 10.9V 4V Surface Mount SOD-523 2.5V 2 120W 11A Yes 1 -55 °C +150 °C
RS Stock No. 166-1743
Mfr. Part No.P6KE62A
TWD5.40
Each (On a Reel of 4000)
units
Single Uni-Directional 85V 58.9V Through Hole DO-15 53V 2 600W 7.1A - 1 -65 °C +175 °C
RS Stock No. 543-8860
Mfr. Part No.P6KE62A
TWD17.60
Each (In a Pack of 5)
units
Single Uni-Directional 85V 58.9V Through Hole DO-15 53V 2 600W 7.1A - 1 -65 °C +175 °C
RS Stock No. 102-2281
Mfr. Part No.NUP2105LT1G
TWD3.20
Each (On a Reel of 3000)
units
Series Bi-Directional 44V 26.2V Surface Mount SOT-23 24V 3 350W 8A Yes 2 -55 °C +150 °C
RS Stock No. 121-6330
Mfr. Part No.SZNUP2105LT1G
TWD3.30
Each (On a Reel of 3000)
units
Series Bi-Directional 44V 26.2V Surface Mount SOT-23 - 3 350W 8A Yes 2 -55 °C +150 °C
RS Stock No. 761-3735
Mfr. Part No.SMBJ30A
TWD9.30
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. 781-5556
Mfr. Part No.SZNUP2105LT1G
TWD10.80
Each (In a Pack of 20)
units
Series Bi-Directional 44V 26.2V Surface Mount SOT-23 - 3 350W 8A Yes 2 -55 °C +150 °C
RS Stock No. 166-1998
Mfr. Part No.SMBJ30A
TWD3.80
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 -65 °C +150 °C
RS Stock No. 781-5559
Mfr. Part No.SZNUP2105LT3G
TWD10.80
Each (In a Pack of 20)
units
Series Bi-Directional 44V 26.2V Surface Mount SOT-23 - 3 350W 8A Yes 2 -55 °C +150 °C
RS Stock No. 464-255
Mfr. Part No.NUP2105LT1G
TWD10.60
Each (In a Pack of 20)
units
Series Bi-Directional 44V 26.2V Surface Mount SOT-23 24V 3 350W 8A Yes 2 -55 °C +150 °C
RS Stock No. 170-3484
Mfr. Part No.SZNUP2105LT3G
TWD3.10
Each (On a Reel of 10000)
units
Series Bi-Directional 44V 26.2V Surface Mount SOT-23 - 3 350W 8A Yes 2 -55 °C +150 °C
RS Stock No. 808-0032
Mfr. Part No.MMBZ15VDLT1G
TWD2.10
Each (In a Pack of 500)
units
Common Cathode Bi-Directional, Uni-Directional 21.2V 14.3V Surface Mount SOT-123 12.8V 3 40W 1.9A Yes 2 -55 °C +150 °C
RS Stock No. 145-3232
Mfr. Part No.MMBZ15VDLT1G
TWD1.10
Each (On a Reel of 3000)
units
Common Cathode Bi-Directional, Uni-Directional 21.2V 14.3V Surface Mount SOT-123 12.8V 3 40W 1.9A Yes 2 -55 °C +150 °C
RS Stock No. 166-1778
Mfr. Part No.P6KE47CA
TWD5.80
Each (On a Reel of 4000)
units
Single Bi-Directional 64.8V 44.7V Through Hole DO-15 40.2V 2 600W 9.3A - 1 -65 °C +175 °C
RS Stock No. 163-1218
Mfr. Part No.SZMMBZ15VALT3G
TWD1.00
Each (On a Reel of 10000)
units
Common Anode Uni-Directional 21V 14.25V Surface Mount SOT-23 - 3 40W 1.9A Yes 2 -55 °C +150 °C
RS Stock No. 781-5461
Mfr. Part No.SZMMBZ15VALT3G
TWD5.50
Each (In a Pack of 50)
units
Common Anode Uni-Directional 21V 14.25V Surface Mount SOT-23 - 3 40W 1.9A Yes 2 -55 °C +150 °C
RS Stock No. 145-4217
Mfr. Part No.ESD5481MUT5G
TWD0.90
Each (On a Reel of 10000)
units
Single Bi-Directional 23V 5.7V Surface Mount DFN 5V 2 0.3W 2A Yes 2 -55 °C +150 °C