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. 826-7888
Mfr. Part No.RSB27F2T106
BrandROHM
TWD12.10
Each (In a Pack of 50)
units
Series - - - Surface Mount UMD - 3 - - - 2 - +150 °C
RS Stock No. 169-0461
Mfr. Part No.RSA6.1ENTR
BrandROHM
TWD3.90
Each (On a Reel of 3000)
units
Common Anode - - - Surface Mount UMD - 5 - - - 4 -55 °C +150 °C
RS Stock No. 169-0462
Mfr. Part No.RSA6.1U5T108
BrandROHM
TWD4.10
Each (On a Reel of 3000)
units
Common Anode - - - Surface Mount SOT-457 (SC-74) - 6 - - - 5 -55 °C +150 °C
RS Stock No. 148-6744
Mfr. Part No.MMBZ6V8ALT116
BrandROHM
TWD2.90
Each (In a Pack of 200)
units
Common Anode Uni-Directional 9.6V 6.46V Surface Mount SOT-23 4.5V 3 24W 2.5A Yes 2 - +150 °C
RS Stock No. 148-5768
Mfr. Part No.MMBZ6V2ALT116
BrandROHM
TWD3.50
Each (In a Pack of 200)
units
Common Anode Uni-Directional 8.7V 5.89V Surface Mount SOT-23 3V 3 24W 2.76A Yes 2 - +150 °C
RS Stock No. 700-2628
Mfr. Part No.RSA6.1U5T108
BrandROHM
TWD15.20
Each (In a Pack of 5)
units
Common Anode - - - Surface Mount SOT-457 (SC-74) - 6 - - - 5 -55 °C +150 °C
RS Stock No. 168-1433
Mfr. Part No.EMZ6.8ET2R
BrandROHM
TWD4.30
Each (In a Pack of 100)
units
Common Anode Uni-Directional - - Surface Mount EMD, SC-75A 3.5V 5 - - - 4 - +150 °C
RS Stock No. 168-1547
Mfr. Part No.RSA30LTE25
BrandROHM
TWD18.20
Each (In a Pack of 20)
units
Single Uni-Directional 41.4V 28.5V Surface Mount PMDS, SOD-106 25.6V 2 600W 14.4A Yes 1 - +150 °C
RS Stock No. 124-6812
Mfr. Part No.RSB12JS2T2R
BrandROHM
TWD11.50
Each (In a Pack of 25)
units
Isolated Bi-Directional - 9.6V Surface Mount SC75A 9V 6 0.15W - Yes 2 - +150 °C
RS Stock No. 168-1566
Mfr. Part No.RSA5LTE25
BrandROHM
TWD18.20
Each (In a Pack of 20)
units
Single Uni-Directional 10.5V 6.45V Surface Mount PMDS, SOD-106 5.8V 2 600W 57A Yes 1 - +150 °C
RS Stock No. 133-2833
Mfr. Part No.RSB6.8SMT2N
BrandROHM
TWD4.90
Each (In a Pack of 200)
units
Single - - - Surface Mount SOD-523 - 2 - - - 1 -55 °C +150 °C
New
RS Stock No. 216-0027
Mfr. Part No.VS5V0UA1LAMTR
BrandROHM
TWD6.40
Each (On a Reel of 3000)
units
Isolated - - - Surface Mount SOD-128 - 2 - - - - - -
RS Stock No. 146-9447
Mfr. Part No.MMBZ5V6ALT116
BrandROHM
TWD1.60
Each (On a Reel of 3000)
units
Common Anode Uni-Directional 8V 5.32V Surface Mount SOT-23 3V 3 24W 3A Yes 2 - +150 °C
RS Stock No. 148-5754
Mfr. Part No.MMBZ12VALT116
BrandROHM
TWD2.10
Each (In a Pack of 200)
units
Common Anode Uni-Directional 17V 11.4V Surface Mount SOT-23 8.5V 3 40W 2.35A Yes 2 - +150 °C
RS Stock No. 148-6817
Mfr. Part No.MMBZ30VALT116
BrandROHM
TWD2.20
Each (In a Pack of 200)
units
Common Anode Uni-Directional 43V 28.5V Surface Mount SOT-23 24V 3 40W 0.95A Yes 2 - +150 °C
New
RS Stock No. 216-0026
Mfr. Part No.VS5V0UA1LAMTFTR
BrandROHM
TWD14.40
Each (In a Pack of 25)
units
Isolated - - - Surface Mount SOD-128 - 2 - - - - - -
RS Stock No. 148-5719
Mfr. Part No.MMBZ10VALT116
BrandROHM
TWD2.20
Each (In a Pack of 200)
units
Common Anode Uni-Directional 14.2V 9.5V Surface Mount SOT-23 6.5V 3 24W 1.7A Yes 2 - +150 °C
RS Stock No. 148-6746
Mfr. Part No.MMBZ24VALT116
BrandROHM
TWD2.40
Each (In a Pack of 200)
units
Common Anode Uni-Directional 32V 22.8V Surface Mount SOT-23 20V 3 40W 1.25A Yes 2 - +150 °C
RS Stock No. 148-5735
Mfr. Part No.MMBZ18VALT116
BrandROHM
TWD2.10
Each (In a Pack of 200)
units
Common Anode Uni-Directional 25V 17.1V Surface Mount SOT-23 14.5V 3 40W 1.6A Yes 2 - +150 °C
New
RS Stock No. 215-9921
Mfr. Part No.RSA6.1U5T108
BrandROHM
TWD4.40
Each (On a Reel of 3000)
units
Isolated - - - Surface Mount SMD6 - 6 0.002W - - - - -