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. 816-6751
Mfr. Part No.PESD5V0U1UA,115
BrandNexperia
HK$2.91
Each (In a Pack of 50)
units
Single Uni-Directional - 5.8V Surface Mount SOD-323 5V 2 - - Yes 1 -55 °C +150 °C
RS Stock No. 166-2282
Mfr. Part No.SMCJ36A
HK$2.393
Each (On a Reel of 3000)
units
Single Uni-Directional 58.1V 40V Surface Mount DO-214AB (SMC) 36V 2 1500W 25.8A - 1 - +150 °C
RS Stock No. 808-0335
Mfr. Part No.SMCJ36A
HK$4.464
Each (In a Pack of 20)
units
Single Uni-Directional 58.1V 40V Surface Mount DO-214AB (SMC) 36V 2 1500W 25.8A - 1 - +150 °C
RS Stock No. 124-2383
Mfr. Part No.PESD5V0U1UA,115
BrandNexperia
HK$0.801
Each (On a Reel of 3000)
units
Single Uni-Directional - 5.8V Surface Mount SOD-323 5V 2 - - Yes 1 -55 °C +150 °C
RS Stock No. 485-9187
Mfr. Part No.P6KE12CA
HK$4.151
Each (In a Pack of 10)
units
Single Bi-Directional 21.7V 11.4V Through Hole DO-15 10.2V 2 600W 184A - 1 -65 °C +175 °C
RS Stock No. 691-0773
Mfr. Part No.LCDA15C-8.TBT
BrandSemtech
HK$55.35
Each
units
Isolated Bi-Directional 33V 16.7V Surface Mount SOIC 15V 16 500W 15A Yes 8 -55 °C +125 °C
RS Stock No. 102-6158
Mfr. Part No.P6KE12CA
HK$1.054
Each (In a Bag of 1000)
units
Single Bi-Directional 21.7V 11.4V Through Hole DO-15 10.2V 2 600W 184A - 1 -65 °C +175 °C
RS Stock No. 170-0826
Mfr. Part No.LCDA15C-8.TBT
BrandSemtech
HK$39.325
Each (On a Reel of 500)
units
Isolated Bi-Directional 33V 16.7V Surface Mount SOIC 15V 16 500W 15A Yes 8 -55 °C +125 °C
RS Stock No. 919-1035
Mfr. Part No.SM8S33AHE3/2D
BrandVishay
HK$26.597
Each (On a Reel of 750)
units
Single Uni-Directional 53.3V 36.7V Surface Mount DO-218AB 33V 2 6600W 124A - 1 -55 °C +175 °C
RS Stock No. 791-8973
Mfr. Part No.PTVS12VP1UP,115
BrandNexperia
HK$2.457
Each (On a Tape of 25)
units
Single Uni-Directional 19.9V 13.3V Surface Mount SOD-128 12V 2 600W 30.2A Yes 1 -55 °C +150 °C
RS Stock No. 636-5527
Mfr. Part No.SA5.0A-E3/54
BrandVishay
HK$4.316
Each (In a Pack of 5)
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. 168-6141
Mfr. Part No.P6KE180A
HK$1.617
Each (On a Tape of 1000)
units
Single Uni-Directional 317V 171V Through Hole DO-15 154V 2 600W 12.6A - 1 -65 °C +175 °C
RS Stock No. 781-5098
Mfr. Part No.SM8S33AHE3_A/I
BrandVishay
HK$39.22
Each
units
Single Uni-Directional 53.3V 36.7V Surface Mount DO-218AB 33V 2 6600W 124A - 1 -55 °C +175 °C
RS Stock No. 165-9825
Mfr. Part No.SRV05-4HTG
BrandLittelfuse
HK$3.371
Each (On a Reel of 3000)
units
Complex Array Uni-Directional 15V - Surface Mount SOT-23 6V 6 150W 8A Yes 4 -40 °C +125 °C
RS Stock No. 102-6164
Mfr. Part No.BZW50-15
HK$18.06
Each (In a Bag of 100)
units
Single Uni-Directional 35V 16.6V Through Hole R 6 15V 2 5000W 1714A - 1 -65 °C +175 °C
RS Stock No. 793-1986
Mfr. Part No.SRV05-4HTG
BrandLittelfuse
HK$7.722
Each (In a Pack of 5)
units
Complex Array Uni-Directional 15V - Surface Mount SOT-23 6V 6 150W 8A Yes 4 -40 °C +125 °C
RS Stock No. 485-6986
Mfr. Part No.BZW50-15
HK$26.68
Each
units
Single Uni-Directional 35V 16.6V Through Hole R 6 15V 2 5000W 1714A - 1 -65 °C +175 °C
RS Stock No. 166-1743
Mfr. Part No.P6KE62A
HK$1.724
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. 169-6070
Mfr. Part No.SA12CA-E3
BrandVishay
HK$3.447
Each (On a Reel of 4000)
units
Single Bi-Directional 19.9V 13.3V Through Hole DO-15 12V 2 500W 25.1A - 1 -55 °C +175 °C
RS Stock No. 636-5549
Mfr. Part No.SA12CA-E3/54
BrandVishay
HK$7.948
Each (In a Pack of 5)
units
Single Bi-Directional 19.9V 13.3V Through Hole DO-15 12V 2 500W 25.1A - 1 -55 °C +175 °C