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. 773-4583
Mfr. Part No.LSP0600BJR-S
BrandBourns
HK$4.563
Each (In a Pack of 25)
units
Single Uni-Directional - - Surface Mount DO-214AC (SMA) 6V 2 - - No 1 -40 °C +150 °C
RS Stock No. 773-4536
Mfr. Part No.CD143A-SR70
BrandBourns
HK$7.172
Each (In a Pack of 10)
units
Complex Array Uni-Directional 7V 85V Surface Mount SOT-143 70V 4 - 24A Yes 4 -55 °C +150 °C
RS Stock No. 146-0659
Mfr. Part No.LSP0600BJR-S
BrandBourns
HK$2.499
Each (On a Reel of 3000)
units
Single Uni-Directional - - Surface Mount DO-214AC (SMA) 6V 2 - - No 1 -40 °C +150 °C
RS Stock No. 146-0655
Mfr. Part No.CD143A-SR70
BrandBourns
HK$3.451
Each (On a Reel of 3000)
units
Complex Array Uni-Directional 7V 85V Surface Mount SOT-143 70V 4 - 24A Yes 4 -55 °C +150 °C
RS Stock No. 172-3265
Mfr. Part No.SMLJ22A-Q
BrandBourns
HK$8.899
Each (In a Pack of 10)
units
Single Uni-Directional 35.5V 24.4V Surface Mount DO-214AB (SMC) 22V 2 3000W - Yes 1 -55 °C +150 °C
RS Stock No. 174-2494
Mfr. Part No.CDSOD323-T03C
BrandBourns
HK$4.977
Each (In a Pack of 20)
units
Single Bi-Directional 7V 4V Surface Mount SOD-323 - 2 350W 20A Yes 1 -55 °C +150 °C
RS Stock No. 172-3257
Mfr. Part No.SMBJ26A-Q
BrandBourns
HK$3.265
Each (In a Pack of 25)
units
Single Uni-Directional 42.1V 28.9V Surface Mount DO-214AA (SMB) 26V 2 600W - Yes 1 -55 °C +150 °C
RS Stock No. 794-8003
Mfr. Part No.CGA0603MLC-24E
BrandBourns
HK$2.646
Each (In a Pack of 50)
units
Single - 25V - Surface Mount MLC - 2 - - Yes 1 -40 °C +85 °C
RS Stock No. 174-2503
Mfr. Part No.CDSOD323-T36SC
BrandBourns
HK$4.734
Each (In a Pack of 20)
units
Single Bi-Directional 60V 6V Surface Mount SOD-323 - 2 400W 5A Yes 1 -55 °C +150 °C
RS Stock No. 172-3275
Mfr. Part No.SMBJ26CA-Q
BrandBourns
HK$3.028
Each (In a Pack of 25)
units
Single Bi-Directional 42.1V 28.9V Surface Mount DO-214AA (SMB) 26V 2 600W - Yes 1 -55 °C +150 °C
RS Stock No. 717-3401
Mfr. Part No.TBU-CA025-200-WH
BrandBourns
HK$16.212
Each (In a Pack of 5)
units
Single Bi-Directional 250V - Surface Mount DFN 20V 2 - 0.4A - 1 -55 °C +125 °C
RS Stock No. 172-3163
Mfr. Part No.SMAJ33CA-Q
BrandBourns
HK$1.014
Each (On a Reel of 5000)
units
Single Bi-Directional 53.3V 36.7V Surface Mount DO-214AC (SMA) 33V 2 400W - Yes 1 -55 °C +150 °C
RS Stock No. 172-3175
Mfr. Part No.SMCJ33CA-Q
BrandBourns
HK$2.328
Each (On a Reel of 3000)
units
Single Bi-Directional 53.3V 36.7V Surface Mount DO-214AB (SMC) 33V 2 1500W - Yes 1 -55 °C +150 °C
New
RS Stock No. 209-8051
Mfr. Part No.TBU-CA085-500-WH-Q
BrandBourns
HK$21.186
Each (In a Pack of 5)
units
Single Bi-Directional 425V - Surface Mount DFN - 2 - - - 1 - -
RS Stock No. 165-3020
Mfr. Part No.SMBJ30A
BrandBourns
HK$0.912
Each (On a Reel of 3000)
units
Single Uni-Directional 48.4V 33.3V Surface Mount DO-214AA (SMB) 30V 2 600W 12.4A - 1 -65 °C +150 °C
RS Stock No. 194-5662
Mfr. Part No.PTVS1-066C-TH
BrandBourns
HK$135.734
Each (In a Tray of 5)
units
Single Bi-Directional 86V 71V Through Hole - 66V 2 - 1kA Yes 1 -55 °C +125 °C
RS Stock No. 773-4577
Mfr. Part No.CDSOT23-SRV05-4
BrandBourns
HK$8.022
Each (In a Pack of 10)
units
Complex Array Uni-Directional 15V 6V Surface Mount SOT-23 5V 6 500W 30A Yes 4 -55 °C +150 °C
RS Stock No. 172-3176
Mfr. Part No.SMLJ22A-Q
BrandBourns
HK$4.856
Each (On a Reel of 3000)
units
Single Uni-Directional 35.5V 24.4V Surface Mount DO-214AB (SMC) 22V 2 3000W - Yes 1 -55 °C +150 °C
RS Stock No. 165-1359
Mfr. Part No.CDDFN10-3304NA
BrandBourns
HK$10.426
Each (In a Pack of 5)
units
Array Uni-Directional 18V 3.9V Surface Mount DFN - 10 - 25A Yes 4 -55 °C +125 °C
RS Stock No. 177-5423
Mfr. Part No.TBU-CA065-300-WH
BrandBourns
HK$7.533
Each (On a Reel of 3000)
units
Single Bi-Directional 650V - Surface Mount DFN 20V 2 - 0.6A - 1 -55 °C +125 °C