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. 145-7394
Mfr. Part No.TPD4E002DRLR
SGD0.378
Each (On a Reel of 4000)
units
Common Anode - - - - - - - - - - 4 - -
RS Stock No. 145-4207
Mfr. Part No.MMQA12VT1G
SGD0.13
Each (On a Reel of 3000)
units
Common Anode Uni-Directional 17.3V 11.4V Surface Mount SC-74 9.1V 6 150W - Yes 4 -55 °C +150 °C
RS Stock No. 919-6365
Mfr. Part No.1.5KE18CA
SGD0.557
Each (In a Bag of 600)
units
Single Bi-Directional 32.5V 17.1V Through Hole DO-201 15.3V 2 1500W 308A - 1 -65 °C +175 °C
RS Stock No. 145-9452
Mfr. Part No.ESD24VS2UE6327HTSA1
BrandInfineon
SGD0.132
Each (On a Reel of 3000)
units
Common Anode Uni-Directional 41V 26V Surface Mount SOT-23 24V 3 230W 5A Yes 2 -55 °C +150 °C
RS Stock No. 103-5106
Mfr. Part No.ESD9L3.3ST5G
SGD0.113
Each (On a Reel of 8000)
units
Single Uni-Directional 9V 4.8V Surface Mount SOD-923 3.3V 2 0.15W 1A Yes 1 -55 °C +150 °C
RS Stock No. 795-9186
Mfr. Part No.BZW50-39B
SGD4.275
Each (In a Pack of 2)
units
Single Bi-Directional 90V 43.3V Through Hole R 6 39V 2 5000W 667A - 1 - +175 °C
RS Stock No. 486-4202
Mfr. Part No.1.5KE18CA
SGD1.292
Each (In a Pack of 5)
units
Single Bi-Directional 32.5V 17.1V Through Hole DO-201 15.3V 2 1500W 308A - 1 -65 °C +175 °C
RS Stock No. 166-1780
Mfr. Part No.P6KE300CA
SGD0.383
Each (On a Reel of 4000)
units
Single Bi-Directional 414V 285V Through Hole DO-15 256V 2 600W 1.5A - 1 -65 °C +175 °C
RS Stock No. 773-7661
Mfr. Part No.ESD9L3.3ST5G
SGD0.427
Each (In a Pack of 10)
units
Single Uni-Directional 9V 4.8V Surface Mount SOD-923 3.3V 2 0.15W 1A Yes 1 -55 °C +150 °C
RS Stock No. 543-8551
Mfr. Part No.P6KE300CA
SGD0.886
Each (In a Pack of 5)
units
Single Bi-Directional 414V 285V Through Hole DO-15 256V 2 600W 1.5A - 1 -65 °C +175 °C
RS Stock No. 919-6359
Mfr. Part No.1.5KE12CA
SGD0.529
Each (In a Bag of 600)
units
Single Bi-Directional 21.7V 11.4V Through Hole DO-201 10.2V 2 1500W 461A - 1 -65 °C +175 °C
RS Stock No. 168-7750
Mfr. Part No.BZW50-39B
SGD2.919
Each (On a Tape of 100)
units
Single Bi-Directional 90V 43.3V Through Hole R 6 39V 2 5000W 667A - 1 - +175 °C
RS Stock No. 177-5882
Mfr. Part No.P6KE27A R0
SGD0.456
Each (On a Reel of 3500)
units
Single Uni-Directional 37.5V 25.7V Through Hole DO-15 23.1V 2 600W 16.8A - 1 -55 °C +175 °C
RS Stock No. 687-8231
Mfr. Part No.MMBZ20VALT1G
SGD0.279
Each (In a Pack of 25)
units
Common Anode Uni-Directional 28V 19V Surface Mount SOT-23 17V 3 40W 1.4A Yes 2 -55 °C +150 °C
RS Stock No. 918-9341
Mfr. Part No.SA5.0A-E3/54
BrandVishay
SGD0.432
Each (On a Reel of 4000)
units
Single Uni-Directional 9.2V 6.4V Through Hole DO-15 5V 2 500W 54.3A - 1 -55 °C +175 °C
RS Stock No. 714-7200
Mfr. Part No.SMBJ33CA-TR
SGD0.534
Each (In a Pack of 25)
units
Single Bi-Directional 69.7V 36.7V Surface Mount DO-214AA (SMB) 33V 2 600W 57A - 1 -55 °C +150 °C
RS Stock No. 918-9345
Mfr. Part No.SA12A-E3/54
BrandVishay
SGD0.394
Each (On a Reel of 4000)
units
Single Uni-Directional 19.9V 13.3V Through Hole DO-15 12V 2 500W 25.1A - 1 -55 °C +175 °C
RS Stock No. 781-4301
Mfr. Part No.MMBZ18VALT1G
SGD0.103
Each (On a Tape of 100)
units
Common Anode Uni-Directional 25V 17.1V Surface Mount SOT-23 - 3 40W 1.6A Yes 2 -55 °C +150 °C
RS Stock No. 163-2150
Mfr. Part No.ESD9C3.3ST5G
SGD0.052
Each (On a Reel of 8000)
units
Single Uni-Directional - 5V Surface Mount SOD-923 3.3V 2 0.15W - Yes 1 -55 °C +150 °C
RS Stock No. 786-2987
Mfr. Part No.MSQA6V1W5T2G
SGD0.427
Each (In a Pack of 50)
units
Common Anode Uni-Directional - 6.1V Surface Mount SOT-353 (SC-70) 3V 5 150W - Yes 4 -55 °C +150 °C