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. 166-1782
Mfr. Part No.P6KE20CA
MYR1.03
Each (On a Reel of 4000)
units
Single Bi-Directional 27.7V 19V Through Hole DO-15 17V 2 600W 22A - 1 -65 °C +175 °C
RS Stock No. 543-8422
Mfr. Part No.P6KE20CA
MYR1.796
Each (In a Pack of 5)
units
Single Bi-Directional 27.7V 19V Through Hole DO-15 17V 2 600W 22A - 1 -65 °C +175 °C
RS Stock No. 145-4208
Mfr. Part No.MMQA27VT1G
MYR0.397
Each (On a Reel of 3000)
units
Common Anode Uni-Directional 39V 25.7V Surface Mount SC-74 21V 6 150W - Yes 4 -55 °C +150 °C
RS Stock No. 786-2956
Mfr. Part No.ESD9X3.3ST5G
MYR0.289
Each (In a Pack of 100)
units
Single Uni-Directional 10.4V 5V Surface Mount SOD-923 5V 2 102W 9.8A Yes 1 -55 °C +150 °C
RS Stock No. 162-9330
Mfr. Part No.ESD9X3.3ST5G
MYR0.137
Each (On a Reel of 8000)
units
Single Uni-Directional 10.4V 5V Surface Mount SOD-923 5V 2 102W 9.8A Yes 1 -55 °C +150 °C
RS Stock No. 805-2835
Mfr. Part No.MMQA27VT1G
MYR1.612
Each (In a Pack of 50)
units
Common Anode Uni-Directional 39V 25.7V Surface Mount SC-74 21V 6 150W - Yes 4 -55 °C +150 °C
RS Stock No. 773-7670
Mfr. Part No.LC03-6R2G
MYR4.90
Each (In a Pack of 5)
units
Complex Array Bi-Directional 20V 6.8V Surface Mount SOIC 5V 8 2000W 100A Yes 5 -55 °C +150 °C
RS Stock No. 808-0032
Mfr. Part No.MMBZ15VDLT1G
MYR0.258
Each (In a Pack of 500)
units
Common Cathode Bi-Directional, Uni-Directional 21.2V 14.3V Surface Mount SOT-123 12.8V 3 40W 1.9A Yes 2 -55 °C +150 °C
RS Stock No. 122-0133
Mfr. Part No.LC03-6R2G
MYR2.121
Each (On a Reel of 2500)
units
Complex Array Bi-Directional 20V 6.8V Surface Mount SOIC 5V 8 2000W 100A Yes 5 -55 °C +150 °C
RS Stock No. 689-9988
Mfr. Part No.NUP4301MR6T1G
MYR1.796
Each (In a Pack of 5)
units
Complex Array - - - Surface Mount SC-74 - 6 - - - 4 -40 °C +85 °C
RS Stock No. 801-0238
Mfr. Part No.ESD9M5.0ST5G
MYR0.38
Each (On a Tape of 100)
units
Single Uni-Directional 9.8V 5.8V Surface Mount SOD-923 5V 2 0.15W 1A Yes 1 -55 °C +150 °C
RS Stock No. 145-3232
Mfr. Part No.MMBZ15VDLT1G
MYR0.135
Each (On a Reel of 3000)
units
Common Cathode Bi-Directional, Uni-Directional 21.2V 14.3V Surface Mount SOT-123 12.8V 3 40W 1.9A Yes 2 -55 °C +150 °C
RS Stock No. 163-2700
Mfr. Part No.NUP4301MR6T1G
MYR0.413
Each (On a Reel of 3000)
units
Complex Array - - - Surface Mount SC-74 - 6 - - - 4 -40 °C +85 °C
RS Stock No. 102-2281
Mfr. Part No.NUP2105LT1G
MYR0.371
Each (On a Reel of 3000)
units
Series Bi-Directional 44V 26.2V Surface Mount SOT-23 24V 3 350W 8A Yes 2 -55 °C +150 °C
RS Stock No. 464-255
Mfr. Part No.NUP2105LT1G
MYR1.376
Each (In a Pack of 20)
units
Series Bi-Directional 44V 26.2V Surface Mount SOT-23 24V 3 350W 8A Yes 2 -55 °C +150 °C
RS Stock No. 463-802
Mfr. Part No.MMBZ5V6ALT1G
MYR0.276
Each (In a Pack of 100)
units
Common Anode Uni-Directional 8V 5.32V Surface Mount SOT-23 3V 3 24W 3A Yes 2 -55 °C +150 °C
RS Stock No. 792-5599
Mfr. Part No.ESD9X5.0ST5G
MYR0.206
Each (In a Pack of 100)
units
Single Uni-Directional 12.3V 6.2V Surface Mount SOD-923 5V 2 107W 8.7A Yes 1 -55 °C +150 °C
RS Stock No. 163-2087
Mfr. Part No.CM1224-04SO
MYR0.996
Each (On a Reel of 3000)
units
Array Uni-Directional 10V 6V Surface Mount SOT-23 - 6 0.22W 1A Yes 9 -40 °C +85 °C
RS Stock No. 805-8861
Mfr. Part No.SMF05T1G
MYR1.323
Each (In a Pack of 50)
units
Common Anode Uni-Directional 12.5V 6.2V Surface Mount SOT-323 (SC-70) 5V 5 200W 12A Yes 4 -55 °C +150 °C
RS Stock No. 145-4236
Mfr. Part No.SMF05T1G
MYR0.419
Each (On a Reel of 3000)
units
Common Anode Uni-Directional 12.5V 6.2V Surface Mount SOT-323 (SC-70) 5V 5 200W 12A Yes 4 -55 °C +150 °C