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. 163-2147
Mfr. Part No.ESD7L5.0DT5G
HK$2.606
Each (On a Reel of 8000)
units
Common Anode Uni-Directional 10.4V 5.4V Surface Mount SOT-723 5V 3 0.15W 1A Yes 1 -55 °C +150 °C
RS Stock No. 166-1114
Mfr. Part No.ESD204B102ELE6327XTMA1
BrandInfineon
HK$0.64
Each (On a Reel of 15000)
units
Single Bi-Directional 28V 8.5V Surface Mount TSLP - 2 - 1A Yes 1 -55 °C +150 °C
RS Stock No. 168-6146
Mfr. Part No.P6KE24A
HK$2.451
Each (On a Tape of 1000)
units
Single Uni-Directional 42.8V 22.8V Through Hole DO-15 20.5V 2 600W 93A - 1 -65 °C +175 °C
RS Stock No. 171-4139
Mfr. Part No.SMBJ16CA
BrandLittelfuse
HK$1.398
Each (On a Reel of 3000)
units
Single Bi-Directional 26V 17.8V Surface Mount DO-214AA (SMB) 16V 2 600W 23.1A Yes 1 -65 °C +150 °C
RS Stock No. 687-2965
Mfr. Part No.P6SMB22CA R4
HK$4.409
Each (In a Pack of 20)
units
Single Bi-Directional 30.6V 20.9V Surface Mount DO-214AA (SMB) 18.8V 2 600W 20A - 1 -65 °C +150 °C
RS Stock No. 192-4740
Mfr. Part No.SMA6F24AY
HK$0.872
Each (On a Reel of 10000)
units
Single Uni-Directional 50V 26.7V Surface Mount SMA Flat 24V 2 600W 80A Yes 1 -55 °C +175 °C
RS Stock No. 795-7146
Mfr. Part No.BZW50-150
HK$24.77
Each (In a Pack of 2)
units
Single Uni-Directional 343V 166V Through Hole R 6 150V 2 5000W 19A - 1 - +175 °C
RS Stock No. 829-0333
Mfr. Part No.HSP061-4NY8
HK$5.644
Each (In a Pack of 5)
units
Complex Array - 18V 6V Surface Mount μQFN 3V 8 - 3A Yes 4 -40 °C +150 °C
RS Stock No. 486-5019
Mfr. Part No.SM6T33CA
HK$3.087
Each (In a Pack of 10)
units
Single Bi-Directional 59V 31.4V Surface Mount DO-214AA (SMB) 28.2V 2 600W 68A - 1 -55 °C +150 °C
RS Stock No. 770-4780
Mfr. Part No.D5V0L2B3W-7
HK$2.338
Each (On a Tape of 50)
units
Array Bi-Directional 14V 6V Surface Mount SOT-323 (SC-70) 5V 3 84W 6A Yes 4 -65 °C +150 °C
RS Stock No. 808-0322
Mfr. Part No.SMCJ30CA
HK$4.835
Each (In a Pack of 20)
units
Single Bi-Directional 48.4V 33.3V Surface Mount DO-214AB (SMC) 30V 2 1500W 31A - 1 - +150 °C
RS Stock No. 180-6592
Mfr. Part No.VTVS36ASMF-M3-08
BrandVishay
HK$2.503
Each (In a Pack of 50)
units
Single Uni-Directional 61V 40.9V Surface Mount DO-219AB 36V 2 400W 6.24A Yes 1 -55 °C +175 °C
RS Stock No. 162-4053
Mfr. Part No.824550361
HK$10.228
Each (On a Reel of 500)
units
Single Uni-Directional 58.1V 42.1V Surface Mount DO-214AB (SMC) - 2 3000W 300A - 1 -65 °C +150 °C
RS Stock No. 764-5565
Mfr. Part No.SMAJ5.0A
BrandLittelfuse
HK$2.394
Each (In a Pack of 25)
units
Single Uni-Directional 9.2V 6.4V Surface Mount DO-214AC (SMA) 5V 2 400W 43.5A - 1 -65 °C +150 °C
RS Stock No. 485-9244
Mfr. Part No.P6KE18A
HK$3.077
Each (In a Pack of 10)
units
Single Uni-Directional 32.5V 17.1V Through Hole DO-15 15.3V 2 600W 123A - 1 -65 °C +175 °C
RS Stock No. 165-7473
Mfr. Part No.SMAJ12A-TR
HK$0.881
Each (On a Reel of 5000)
units
Single Uni-Directional 25.3V 13.3V Surface Mount DO-214AC (SMA) 12V 2 400W 91A Yes 1 -55 °C +150 °C
RS Stock No. 166-1402
Mfr. Part No.PESD15VS1UB,115
BrandNexperia
HK$0.538
Each (On a Reel of 3000)
units
Single Uni-Directional 40V 17.6V Surface Mount I-IGIA 15V 2 160W 5A Yes 1 -65 °C +150 °C
RS Stock No. 921-7099
Mfr. Part No.824551361
HK$13.133
Each (In a Pack of 10)
units
Single Bi-Directional 58.1V 42.1V Surface Mount DO-214AB (SMC) - 2 3000W 51.6A - 1 -65 °C +150 °C
RS Stock No. 689-9985
Mfr. Part No.ESD5Z3.3T1G
HK$1.974
Each (In a Pack of 5)
units
Single Uni-Directional 14.1V 5V Surface Mount SOD-523 3.3V 2 200W 11.2A Yes 1 -55 °C +150 °C
RS Stock No. 192-3846
Mfr. Part No.SMA4F15AY
HK$0.837
Each (On a Reel of 10000)
units
Single Uni-Directional 32.5V 16.7V Surface Mount SMA Flat 15V 2 400W 71A - 1 -55 °C +175 °C