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. 165-7473
Mfr. Part No.SMAJ12A-TR
SGD0.144
Each (On a Reel of 5000)
units
Single Uni-Directional 25.3V 13.3V Surface Mount DO-214AC (SMA) 12V 2 400W 91A Yes 1 -55 °C +150 °C
RS Stock No. 162-9452
Mfr. Part No.MSQA6V1W5T2G
SGD0.093
Each (On a Reel of 3000)
units
Common Anode Uni-Directional - 6.1V Surface Mount SOT-353 (SC-70) 3V 5 150W - Yes 4 -55 °C +150 °C
RS Stock No. 162-9244
Mfr. Part No.PACDN006MR
SGD0.444
Each (On a Reel of 4000)
units
Array Bi-Directional 13V - Surface Mount MSOP - 8 0.2W - Yes 12 -40 °C +85 °C
RS Stock No. 795-7338
Mfr. Part No.SM4T28AY
SGD1.06
Each (In a Pack of 25)
units
Single Uni-Directional 50V 26.7V Surface Mount DO-214AC (SMA) 24V 2 400W 46A - 1 -55 °C +150 °C
RS Stock No. 169-0741
Mfr. Part No.D5V0L1B2LP3-7
SGD0.089
Each (On a Reel of 10000)
units
Array Bi-Directional 14V 6V Surface Mount DFN 5V 2 84W 6A Yes 2 -65 °C +150 °C
RS Stock No. 146-1418
Mfr. Part No.SMCJ12A-E3
BrandVishay
SGD0.47
Each (On a Reel of 850)
units
Single Uni-Directional 19.9V 13.3V Surface Mount SMC 12V 2 1500W 75.4A - 1 -55 °C +150 °C
RS Stock No. 165-4948
Mfr. Part No.1N6293A-E3/54
BrandVishay
SGD0.603
Each (On a Tape of 1400)
units
Single Uni-Directional 113V 77.9V Through Hole 1.5KE 70V 2 1500W 13.3A Yes 1 -55 °C +175 °C
RS Stock No. 168-6143
Mfr. Part No.P6KE200A
SGD0.297
Each (On a Tape of 1000)
units
Single Uni-Directional 353V 190V Through Hole DO-15 171V 2 600W 11.3A - 1 -65 °C +175 °C
RS Stock No. 486-4280
Mfr. Part No.1.5KE27A
SGD1.024
Each (In a Pack of 5)
units
Single Uni-Directional 48.3V 25.7V Through Hole DO-201 23.1V 2 1500W 207A - 1 -65 °C +175 °C
RS Stock No. 793-1964
Mfr. Part No.SP0505BAHTG
BrandLittelfuse
SGD1.239
Each (In a Pack of 10)
units
Array Uni-Directional 8.5V - Surface Mount SOT-23 5.5V 6 0.22W - Yes 5 -40 °C +85 °C
RS Stock No. 166-1743
Mfr. Part No.P6KE62A
SGD0.268
Each (On a Reel of 4000)
units
Single Uni-Directional 85V 58.9V Through Hole DO-15 53V 2 600W 7.1A - 1 -65 °C +175 °C
RS Stock No. 786-2943
Mfr. Part No.ESD9P5.0ST5G
SGD0.425
Each (In a Pack of 50)
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. 754-6184
Mfr. Part No.82306050029
SGD1.10
Each (In a Pack of 5)
units
Single - 30V - Surface Mount 0603 (1608M) 5V 2 - - Yes 1 -40 °C +85 °C
RS Stock No. 691-0802
Mfr. Part No.SM12.TCT
BrandSemtech
SGD0.722
Each (In a Pack of 10)
units
Common Anode Uni-Directional 19V 13.3V Surface Mount SOT-23 12V 3 300W 12A Yes 2 -55 °C +125 °C
RS Stock No. 808-0032
Mfr. Part No.MMBZ15VDLT1G
SGD0.091
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. 825-5334
Mfr. Part No.TPD4E1U06DBVR
SGD0.461
Each (In a Pack of 20)
units
Complex Array Uni-Directional 15V 6.5V Surface Mount SOT-23 5.5V 6 45W 3A Yes 4 -40 °C +125 °C
RS Stock No. 780-5385
Mfr. Part No.PESD5Z3.3,115
BrandNexperia
SGD0.136
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. 145-3232
Mfr. Part No.MMBZ15VDLT1G
SGD0.049
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. 509-099
Mfr. Part No.PESD3V3S2UT,215
BrandNexperia
SGD0.504
Each (In a Pack of 20)
units
Common Anode Uni-Directional 20V 5.2V Surface Mount SOT-23 (TO-236AB) 3.3V 3 330W 18A Yes 2 -65 °C +150 °C
RS Stock No. 485-9339
Mfr. Part No.P6KE33A
SGD0.579
Each (In a Pack of 10)
units
Single Uni-Directional 59V 31.4V Through Hole DO-15 28.2V 2 600W 68A - 1 -65 °C +175 °C