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. 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. 166-0123
Mfr. Part No.PTVS12VP1UP,115
BrandNexperia
HK$0.963
Each (On a Reel of 3000)
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. 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. 166-1503
Mfr. Part No.PESD3V3S4UD,115
BrandNexperia
HK$1.023
Each (On a Reel of 3000)
units
Common Anode Uni-Directional 12V 5.3V Surface Mount TSOP 3.3V 6 200W 20A Yes 4 -65 °C +150 °C
RS Stock No. 166-1517
Mfr. Part No.IP4220CZ6,125
BrandNexperia
HK$0.881
Each (On a Reel of 3000)
units
Complex Array - - - Surface Mount TSOP - 6 - - - 4 -40 °C +85 °C
RS Stock No. 166-0049
Mfr. Part No.NUP1301U,115
BrandNexperia
HK$0.578
Each (On a Reel of 3000)
units
Series Uni-Directional 20V 100V Surface Mount SOT-323 (SC-70) 80V 3 220W 11A Yes 2 -55 °C +150 °C
RS Stock No. 803-0712
Mfr. Part No.NUP1301U,115
BrandNexperia
HK$2.29
Each (On a Tape of 50)
units
Series Uni-Directional 20V 100V Surface Mount SOT-323 (SC-70) 80V 3 220W 11A Yes 2 -55 °C +150 °C
RS Stock No. 510-291
Mfr. Part No.IP4220CZ6,125
BrandNexperia
HK$2.709
Each (In a Pack of 10)
units
Complex Array - - - Surface Mount TSOP - 6 - - - 4 -40 °C +85 °C
RS Stock No. 509-251
Mfr. Part No.PESD3V3S4UD,115
BrandNexperia
HK$2.615
Each (In a Pack of 20)
units
Common Anode Uni-Directional 12V 5.3V Surface Mount TSOP 3.3V 6 200W 20A Yes 4 -65 °C +150 °C
RS Stock No. 166-0089
Mfr. Part No.PTVS3V3S1UR,115
BrandNexperia
HK$0.776
Each (On a Reel of 3000)
units
Single Uni-Directional 8V 5.2V Surface Mount SOD-123W 3.3V 2 400W 43.8A - 1 -55 °C +150 °C
RS Stock No. 725-8720
Mfr. Part No.PRTR5V0U2X,215
BrandNexperia
HK$4.059
Each (In a Pack of 20)
units
Complex Array Uni-Directional - 6V Surface Mount SOT-143B 5.5V 4 - - Yes 2 -40 °C +85 °C
RS Stock No. 780-5385
Mfr. Part No.PESD5Z3.3,115
BrandNexperia
HK$0.781
Each (In a Pack of 100)
units
Single Uni-Directional 18V 5V Surface Mount SOD-523 3.3V 2 260W 20A Yes 1 -65 °C +150 °C
RS Stock No. 166-0037
Mfr. Part No.PESD5Z3.3,115
BrandNexperia
HK$0.416
Each (On a Reel of 3000)
units
Single Uni-Directional 18V 5V Surface Mount SOD-523 3.3V 2 260W 20A Yes 1 -65 °C +150 °C
RS Stock No. 124-2404
Mfr. Part No.PRTR5V0U2X,215
BrandNexperia
HK$1.575
Each (On a Reel of 3000)
units
Complex Array Uni-Directional - 6V Surface Mount SOT-143B 5.5V 4 - - Yes 2 -40 °C +85 °C
RS Stock No. 791-8964
Mfr. Part No.PRTR5V0U4D,125
BrandNexperia
HK$2.541
Each (In a Pack of 25)
units
Complex Array - - - Surface Mount SOT-457 (SC-74) - 6 - - Yes 4 - -
RS Stock No. 780-5411
Mfr. Part No.PTVS3V3S1UR,115
BrandNexperia
HK$2.52
Each (In a Pack of 25)
units
Single Uni-Directional 8V 5.2V Surface Mount SOD-123W 3.3V 2 400W 43.8A - 1 -55 °C +150 °C
RS Stock No. 166-1414
Mfr. Part No.PESD5V0U1UT,215
BrandNexperia
HK$0.512
Each (On a Reel of 3000)
units
Single Uni-Directional 21V 7V Surface Mount SOT-23 (TO-236AB) 5V 3 80W 5A Yes 1 -65 °C +150 °C
RS Stock No. 166-1415
Mfr. Part No.PESD3V3U1UT,215
BrandNexperia
HK$0.578
Each (On a Reel of 3000)
units
Single Uni-Directional 20V 5.8V Surface Mount SOT-23 (TO-236AB) 3.3V 3 80W 5A Yes 1 -65 °C +150 °C
RS Stock No. 509-655
Mfr. Part No.PESD5V0S2BT,215
BrandNexperia
HK$2.825
Each (In a Pack of 20)
units
Series Bi-Directional 14V 5.5V Surface Mount SOT-23 (TO-236AB) 5V 3 130W 12A Yes 2 -65 °C +150 °C