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. 166-1517
Mfr. Part No.IP4220CZ6,125
BrandNexperia
HK$0.864
Each (On a Reel of 3000)
units
Complex Array - - - Surface Mount TSOP - 6 - - - 4 -40 °C +85 °C
RS Stock No. 165-7445
Mfr. Part No.SMCJ5.0A-TR
HK$1.463
Each (On a Reel of 2500)
units
Single Uni-Directional 13.4V 6.4V Surface Mount DO-214AB (SMC) 5V 2 1500W 746A - 1 -55 °C +150 °C
RS Stock No. 166-1783
Mfr. Part No.P6KE180A
HK$1.51
Each (On a Reel of 4000)
units
Single Uni-Directional 246V 171V Through Hole DO-15 154V 2 600W 2.4A - 1 -65 °C +175 °C
RS Stock No. 823-1710
Mfr. Part No.SMBJ100A-13-F
HK$2.478
Each (In a Pack of 25)
units
Single Uni-Directional 162V 111V Surface Mount DO-214AA (SMB) 100V 2 600W 3.7A - 1 -55 °C +150 °C
RS Stock No. 624-7693
Mfr. Part No.USBLC6-2SC6
HK$4.138
Each (In a Pack of 10)
units
Complex Array Uni-Directional 17V 6V Surface Mount SOT-23 5V 6 - 5A Yes 2 -40 °C +125 °C
RS Stock No. 699-8079
Mfr. Part No.SMBJ54A-E3/52
BrandVishay
HK$2.51
Each (In a Pack of 25)
units
Single Uni-Directional 87.1V 60V Surface Mount DO-214AA (SMB) 54V 2 600W 6.9A Yes 1 -55 °C +150 °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. 877-3084
Mfr. Part No.USBULC6-2M6
HK$8.978
Each (In a Pack of 20)
units
Complex Array Uni-Directional 17V 6V Surface Mount μQFN 5V 6 - 5A Yes 2 - +150 °C
RS Stock No. 145-2594
Mfr. Part No.SMBJ54A-E3/52
BrandVishay
HK$1.409
Each (On a Reel of 750)
units
Single Uni-Directional 87.1V 60V Surface Mount DO-214AA (SMB) 54V 2 600W 6.9A Yes 1 -55 °C +150 °C
RS Stock No. 165-5520
Mfr. Part No.USBULC6-2M6
HK$4.515
Each (On a Reel of 3000)
units
Complex Array Uni-Directional 17V 6V Surface Mount μQFN 5V 6 - 5A Yes 2 - +150 °C
RS Stock No. 921-5125
Mfr. Part No.TPD4S012DRYR
HK$2.523
Each (On a Reel of 5000)
units
Complex Array Uni-Directional - 20V Surface Mount SON - 6 60W 3A Yes 3 -40 °C +85 °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. 145-5211
Mfr. Part No.NUP4114UCW1T2G
HK$1.014
Each (On a Reel of 3000)
units
Complex Array Uni-Directional 9V 5.5V Surface Mount SOT-363 (SC-88) 5.5V 6 - 12A Yes 4 -40 °C +125 °C
RS Stock No. 122-2399
Mfr. Part No.SMBJ100A-13-F
HK$0.766
Each (On a Reel of 3000)
units
Single Uni-Directional 162V 111V Surface Mount DO-214AA (SMB) 100V 2 600W 3.7A - 1 -55 °C +150 °C
RS Stock No. 166-2563
Mfr. Part No.P6KE56CA
HK$1.766
Each (On a Reel of 4000)
units
Single Bi-Directional 77V 53.2V Through Hole DO-15 47.8V 2 600W 7.8A - 1 -65 °C +175 °C
RS Stock No. 486-4707
Mfr. Part No.P6KE6V8A
HK$3.077
Each (In a Pack of 10)
units
Single Uni-Directional 13.4V 6.45V Through Hole DO-15 5.8V 2 600W 298A - 1 -65 °C +175 °C
RS Stock No. 919-6393
Mfr. Part No.1.5KE400CA
HK$5.219
Each (In a Bag of 600)
units
Single Bi-Directional 706V 380V Through Hole DO-201 342V 2 1500W 14A - 1 -65 °C +175 °C
RS Stock No. 134-9470
Mfr. Part No.B72500D0050A060
BrandEPCOS
HK$0.573
Each (On a Reel of 4000)
units
Single Bi-Directional 19V 6.4V Surface Mount SOD-523 5.6V 2 1000W 30A Yes 1 -40 °C +85 °C
RS Stock No. 917-2716
Mfr. Part No.EMIF06-MSD02N16
HK$6.293
Each (In a Pack of 10)
units
- - - - Surface Mount - - - - - - - -30 °C +85 °C
RS Stock No. 714-7080
Mfr. Part No.SMAJ188A-TR
HK$2.771
Each (In a Pack of 25)
units
Single Uni-Directional 388V 209V Surface Mount DO-214AC (SMA) 188V 2 400W 6A Yes 1 -55 °C +150 °C