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. 805-2835
Mfr. Part No.MMQA27VT1G
MYR0.941
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. 628-7629
Mfr. Part No.SMBJ12A-E3/52
BrandVishay
MYR1.66
Each (In a Pack of 5)
units
Single Uni-Directional 19.9V 13.3V Surface Mount DO-214AA (SMB) 12V 2 600W 30.2A - 1 -55 °C +150 °C
RS Stock No. 764-5464
Mfr. Part No.5KP36CA
BrandLittelfuse
MYR10.09
Each (In a Pack of 5)
units
Single Bi-Directional 58.1V 40V Through Hole P600 36V 2 5000W 87.8A - 1 -55 °C +175 °C
RS Stock No. 691-0641
Mfr. Part No.RCLAMP0502A.TCT
BrandSemtech
MYR2.96
Each (In a Pack of 5)
units
Single Uni-Directional 18V 6V Surface Mount SOT-523 (SC-89) 5V 6 50W 3A Yes 1 -55 °C +125 °C
RS Stock No. 793-1982
Mfr. Part No.SP724AHTG
BrandLittelfuse
MYR6.64
Each (In a Pack of 5)
units
Complex Array Uni-Directional - - Surface Mount SOT-23 - 6 - - Yes 4 -40 °C +105 °C
RS Stock No. 725-8792
Mfr. Part No.PESD5V0U1UB,115
BrandNexperia
MYR1.18
Each (On a Tape of 20)
units
Single Uni-Directional - 5.8V Surface Mount SOD-523 5V 2 - - Yes 1 -55 °C +150 °C
RS Stock No. 918-9408
Mfr. Part No.5KP48A-E3
BrandVishay
MYR13.825
Each (On a Reel of 800)
units
Single Uni-Directional 77.4V 53.3V Through Hole P600 48V 2 5000W 64.6A - 1 -55 °C +175 °C
RS Stock No. 165-2570
Mfr. Part No.SMCJ48A-E3/57T
BrandVishay
MYR1.283
Each (On a Reel of 850)
units
Single Uni-Directional 77.4V 53.3V Surface Mount DO-214AB (SMC) 48V 2 1500W 19.4A Yes 1 -55 °C +150 °C
RS Stock No. 168-6860
Mfr. Part No.BZW06-19B
MYR0.879
Each (On a Tape of 1000)
units
Single Bi-Directional 39.3V 20.9V Through Hole DO-15 18.8V 2 600W 102A - 1 -65 °C +175 °C
RS Stock No. 638-7791
Mfr. Part No.5KP48A-E3/54
BrandVishay
MYR15.204
Each (In a Pack of 5)
units
Single Uni-Directional 77.4V 53.3V Through Hole P600 48V 2 5000W 64.6A - 1 -55 °C +175 °C
RS Stock No. 687-3841
Mfr. Part No.P6KE16CA R0
MYR2.85
Each (In a Pack of 20)
units
Single Bi-Directional 22.5V 15.2V Through Hole DO-15 13.6V 2 600W 28A - 1 -55 °C +175 °C
RS Stock No. 162-9330
Mfr. Part No.ESD9X3.3ST5G
MYR0.117
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. 920-6288
Mfr. Part No.HDMIULC6-4SC6
MYR0.883
Each (On a Reel of 3000)
units
Complex Array Uni-Directional 17V 6V Surface Mount SOT-23 5V 6 - - Yes 4 -55 °C +125 °C
RS Stock No. 166-1110
Mfr. Part No.KBMF01SC6
MYR2.55
Each (On a Reel of 1000)
units
Complex Array - - 6V Surface Mount SOT-23 - 6 - - Yes 2 0 °C +70 °C
RS Stock No. 699-7963
Mfr. Part No.P6KE18A-E3/54
BrandVishay
MYR1.32
Each (In a Pack of 20)
units
Single Uni-Directional 25.2V 17.1V Through Hole DO-204AC 15.3V 2 600W 23.8A Yes 1 -55 °C +175 °C
RS Stock No. 166-1939
Mfr. Part No.SMBJ150A
MYR0.587
Each (On a Reel of 3000)
units
Single Uni-Directional 243V 167V Surface Mount DO-214AA (SMB) 150V 2 600W 2.5A - 1 -55 °C +150 °C
RS Stock No. 751-4979
Mfr. Part No.SMAJ15CA-13-F
MYR0.958
Each (In a Pack of 25)
units
Single Bi-Directional 24.4V 16.7V Surface Mount DO-214AC (SMA) 15V 2 400W 16.4A - 1 -55 °C +150 °C
RS Stock No. 816-6735
Mfr. Part No.PESD12VS1UL,315
BrandNexperia
MYR0.559
Each (On a Tape of 100)
units
Single Uni-Directional 35V 14.7V Surface Mount SOD-882 12V 2 150W 5A Yes 1 -65 °C +150 °C
RS Stock No. 464-255
Mfr. Part No.NUP2105LT1G
MYR0.987
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. 166-2288
Mfr. Part No.SMCJ45A
MYR1.068
Each (On a Reel of 3000)
units
Single Uni-Directional 72.7V 50V Surface Mount DO-214AB (SMC) 45V 2 1500W 20.6A - 1 - +150 °C