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. 486-0648
Mfr. Part No.1.5KE300A
MYR4.242
Each (In a Pack of 5)
units
Single Uni-Directional 529V 285V Through Hole DO-201 256V 2 1500W 19A - 1 -65 °C +175 °C
RS Stock No. 145-4086
Mfr. Part No.NUP1301ML3T1G
MYR0.304
Each (On a Reel of 3000)
units
Series Bi-Directional 1.25V - Surface Mount SOT-23 70V 3 - 2A Yes 2 -55 °C +150 °C
RS Stock No. 687-3908
Mfr. Part No.P6KE47CA R0
MYR1.733
Each (In a Pack of 20)
units
Single Bi-Directional 64.8V 44.7V Through Hole DO-15 40.2V 2 600W 9.7A - 1 -55 °C +175 °C
RS Stock No. 764-5492
Mfr. Part No.P6SMB33A
BrandLittelfuse
MYR1.612
Each (In a Pack of 10)
units
Single Uni-Directional 45.7V 31.4V Surface Mount DO-214AA (SMB) 28.2V 2 600W 13.3A - 1 -65 °C +150 °C
RS Stock No. 687-3390
Mfr. Part No.SMAJ7.0CA R3
MYR3.25
Each (In a Pack of 20)
units
Single Bi-Directional 12V 7.78V Surface Mount DO-214AC (SMA) 7V 2 - 33.3A Yes 1 -55 °C +150 °C
RS Stock No. 903-5737
Mfr. Part No.SMAJ7.5A
MYR0.297
Each (On a Reel of 5000)
units
Single Uni-Directional 12.9V 8.33V Surface Mount DO-214AC (SMA) 7.5V 2 400W 31A - 1 -55 °C +150 °C
New
RS Stock No. 208-5173
Mfr. Part No.SMB6F64A
MYR1.362
Each (In a Pack of 50)
units
Single Uni-Directional 103V 78.6V Surface Mount SMB Flat - 2 600W - - 1 - -
New
RS Stock No. 216-9530
Mfr. Part No.TLD5S20AH
MYR14.578
Each (In a Pack of 5)
units
- Uni-Directional 32.4V 22.2V Surface Mount DO-218AB - 2 3600W - - 3 - -
RS Stock No. 919-6361
Mfr. Part No.1.5KE180CA
MYR1.565
Each (In a Bag of 600)
units
Single Bi-Directional 317V 171V Through Hole DO-201 154V 2 1500W 31.5A - 1 -65 °C +175 °C
RS Stock No. 248-631
Mfr. Part No.ESDA17-5SC6
MYR1.642
Each (In a Pack of 10)
units
Common Anode Uni-Directional - 17V Surface Mount SOT-23 14V 6 150W - Yes 5 -40 °C +125 °C
RS Stock No. 770-4841
Mfr. Part No.DESD5V0S1BA-7
MYR1.003
Each (In a Pack of 50)
units
Single Bi-Directional 14V 5.5V Surface Mount SOD-323 5V 2 130W 12A Yes 1 -65 °C +150 °C
RS Stock No. 180-7949
Mfr. Part No.SMAJ28A-E3/61
BrandVishay
MYR0.658
Each (In a Pack of 100)
units
- - - - - - - - - - - - - -
RS Stock No. 903-5566
Mfr. Part No.1.5KE200CA
MYR0.536
Each (On a Tape of 1200)
units
Single Bi-Directional 274V 190V Through Hole DO-201 171V 2 1500W 5.5A - 1 -55 °C +150 °C
RS Stock No. 486-4404
Mfr. Part No.1.5KE62A
MYR2.45
Each (In a Pack of 5)
units
Single Uni-Directional 111V 58.9V Through Hole DO-201 53V 2 1500W 90A - 1 -65 °C +175 °C
RS Stock No. 165-4900
Mfr. Part No.1.5KE120A-E3/54
BrandVishay
MYR2.432
Each (On a Tape of 1400)
units
Single Uni-Directional 165V 114V Through Hole 1.5KE 102V 2 1500W 9.1A Yes 1 -55 °C +175 °C
New
RS Stock No. 216-9551
Mfr. Part No.TLD6S10AH
MYR10.826
Each (On a Reel of 750)
units
- Uni-Directional 17V 11.1V Surface Mount DO-218AB - 2 4600W - - 3 - -
RS Stock No. 165-8779
Mfr. Part No.PESD5V0V1BB,115
BrandNexperia
MYR0.458
Each (On a Reel of 3000)
units
Single Bi-Directional 12.5V 5.8V Surface Mount SOD-523 5V 2 45W 4.8A Yes 1 -55 °C +150 °C
New
RS Stock No. 216-9631
Mfr. Part No.TLD8S40AH
MYR12.317
Each (On a Reel of 750)
units
- Uni-Directional 64.5V 44.4V Surface Mount DO-218AB - 2 6600W - - 3 - -
RS Stock No. 486-4628
Mfr. Part No.P6KE300A
MYR1.775
Each (In a Pack of 10)
units
Single Uni-Directional 529V 285V Through Hole DO-15 256V 2 600W 7.6A - 1 -65 °C +175 °C
RS Stock No. 921-1240
Mfr. Part No.SD12-7
MYR0.523
Each (In a Pack of 100)
units
Single Uni-Directional 25V 13.3V Surface Mount SOD-323 12V 2 350W 15A Yes 1 -55 °C +150 °C