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).

TVS diodes are offered in both through hole and surface mount packages. They 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.

What are the benefits of using transient voltage suppressor diodes?

TVS diodes 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, lightning strikes, EFT (electrical fast transients) and the ESD (electrostatic discharge) created by data lines and electronic circuits.

What do I need 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 - This is the operating voltage that the data or power line should not exceed.
  • Breakdown voltage - This 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 high than the reverse standoff voltage

Applications:

TVS diodes have numerous applications but are well suited 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 Maximum Peak Pulse Current Mounting Type Package Type Maximum Reverse Stand-off Voltage Maximum Reverse Leakage Current Pin Count Peak Pulse Power Dissipation ESD Protection Number of Elements per Chip Minimum Operating Temperature
RS Stock No. 786-2912
Mfr. Part No.ESD5Z6.0T1G
€0.053
Each (In a Pack of 100)
units
Single Uni-Directional 12.4V 6.8V 8.8A Surface Mount SOD-523 6V 10nA 2 181W Yes 1 -55 °C
RS Stock No. 803-2064
Mfr. Part No.SMCJ30A
€0.485
Each (In a Pack of 20)
units
Single Uni-Directional 48.4V 33.3V 31A Surface Mount DO-214AB (SMC) 30V 5µA 2 1500W - 1 -
RS Stock No. 799-2846
Mfr. Part No.MAX3205EATE+
€1.746
Each (In a Pack of 5)
units
Dual Uni-Directional 30V - 45A Surface Mount TQFN - 100nA 16 1.66W Yes 2 -40 °C
RS Stock No. 171-6748
Mfr. Part No.5.0SMDJ20CA
BrandLittelfuse
€0.90
Each (On a Reel of 3000)
units
Single Bi-Directional 32.4V 22.2V 155A Surface Mount DO-214AB 20V 5µA 2 5000W Yes 1 -65 °C
RS Stock No. 169-8627
Mfr. Part No.P6KE6V8CA
€0.176
Each (On a Reel of 4000)
units
Single Bi-Directional 10.5V 6.45V 57.1A Through Hole DO-15 5.8V 1mA 2 600W - 1 -
RS Stock No. 169-9035
Mfr. Part No.P6SMB39CA R5
€0.137
Each (On a Reel of 850)
units
Single Bi-Directional 53.9V 37.1V 11.6A Surface Mount DO-214AA (SMB) 33.3V 5µA 2 600W - 1 -65 °C
RS Stock No. 903-5569
Mfr. Part No.1.5KE220CA
€0.09
Each (On a Tape of 1200)
units
Single Bi-Directional 328V 209V 4.6A Through Hole DO-201 185V 5µA 2 1500W - 1 -55 °C
RS Stock No. 183-5192
Mfr. Part No.UMZ30NUMTL
BrandROHM
€0.076
Each (On a Reel of 3000)
units
- Uni-Directional - 29.19V - Surface Mount SOT-323FL 27V 100nA 3 200mW Yes 2 -
RS Stock No. 162-1562
Mfr. Part No.SMBJ43CD-M3/H
BrandVishay
€0.094
Each (In a Pack of 25)
units
- Bi-Directional 68.5V 48.5V 8.76A Surface Mount DO-214AA (SMB) 43V 500nA 2 600W - - -55 °C
New
RS Stock No. 192-3850
Mfr. Part No.SMA4F18A
€0.063
Each (On a Reel of 10000)
units
Single Uni-Directional 29.2 V, 39.3 V 20V 13.7 A, 59 A Surface Mount SMA Flat 18V 1µA 2 400W Yes 1 -55 °C
RS Stock No. 166-2927
Mfr. Part No.SMBJ10CA
€0.162
Each (On a Reel of 3000)
units
Single Bi-Directional 17V 11.1V 35.3A Surface Mount DO-214AA (SMB) 10V 5µA 2 600W - 1 -55 °C
RS Stock No. 819-3692
Mfr. Part No.SMBJ160CA-E3/52
BrandVishay
€0.12
Each (In a Pack of 20)
units
Single Bi-Directional 259V 178V 2.3A Surface Mount DO-214AA (SMB) 160V 1µA 2 600W - 1 -55 °C
RS Stock No. 786-2987
Mfr. Part No.MSQA6V1W5T2G
€0.035
Each (In a Pack of 50)
units
Common Anode Uni-Directional - 6.1V - Surface Mount SOT-353 (SC-70) 3V 1µA 5 150W Yes 4 -55 °C
RS Stock No. 699-7957
Mfr. Part No.GSOT03C-E3-08
BrandVishay
€0.245
Each (In a Pack of 25)
units
Dual Bi-Directional 7.5V 4V 30A Surface Mount SOT-23 3.3V 100µA 3 509W Yes 1 -55 °C
RS Stock No. 816-6757
Mfr. Part No.PESD5V0S4UF,115
BrandNexperia
€0.291
Each (In a Pack of 50)
units
Common Anode Uni-Directional 12V 6.46V 10A Surface Mount SOT-886 5V 100nA 6 110W Yes 4 -55 °C
RS Stock No. 903-5465
Mfr. Part No.1.5KE43A
€0.09
Each (On a Tape of 1200)
units
Single Uni-Directional 59.3V 40.9V 25.3A Through Hole DO-201 36.8V 5µA 2 1500W - 1 -55 °C
RS Stock No. 687-3860
Mfr. Part No.P6KE20CA R0
€0.396
Each (In a Pack of 20)
units
Single Bi-Directional 27.7V 19V 22A Through Hole DO-15 17V 1µA 2 600W - 1 -55 °C
RS Stock No. 171-6734
Mfr. Part No.15KPA36CA
BrandLittelfuse
€7.35
Each (On a Reel of 800)
units
Single Bi-Directional 59.8V 40.2V 252.5A Through Hole P600 36V 2µA 2 15000W Yes 1 -55 °C
RS Stock No. 186-9108
Mfr. Part No.MMBZ16VALT1G
€0.033
Each (On a Reel of 3000)
units
Common Anode Uni-Directional 23V 15.2V 1.7A Surface Mount SOT-23 - 50nA 3 40W Yes 2 -55 °C
RS Stock No. 172-3251
Mfr. Part No.SMBJ24A-Q
BrandBourns
€0.096
Each (In a Pack of 25)
units
Single Uni-Directional 38.9V 26.7V - Surface Mount DO-214AA (SMB) 24V 1µA 2 600W Yes 1 -55 °C
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