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. 169-9085
Mfr. Part No.BZW04-15 R0
€0.057
Each (On a Tape of 5000)
units
Single Uni-Directional 25.2V 17.1V 16A Through Hole DO-15 15.3V 1µA 2 - - 1 -65 °C
RS Stock No. 122-1233
Mfr. Part No.SMBJ5.0A-13-F
€0.075
Each (On a Reel of 3000)
units
Single Uni-Directional 9.2V 6.4V 65.2A Surface Mount DO-214AA (SMB) 5V 800µA 2 600W - 1 -55 °C
RS Stock No. 172-3164
Mfr. Part No.SMBJ24A-Q
BrandBourns
€0.098
Each (On a Reel of 3000)
units
Single Uni-Directional 38.9V 26.7V - Surface Mount DO-214AA (SMB) 24V 1µA 2 600W Yes 1 -55 °C
RS Stock No. 171-4216
Mfr. Part No.SP1003-01DTG
BrandLittelfuse
€0.33
Each (In a Pack of 20)
units
Single Uni-Directional 12V - 7A Surface Mount SOD-723 5V 100nA 2 - Yes 1 -40 °C
RS Stock No. 823-1763
Mfr. Part No.SMCJ12A-13-F
€0.518
Each (In a Pack of 20)
units
Single Uni-Directional 19.9V 13.3V 75.3A Surface Mount SMC 12V 5µA 2 1500W - 1 -55 °C
RS Stock No. 781-5121
Mfr. Part No.NUP1105LT1G
€0.124
Each (On a Tape of 50)
units
Common Cathode Bi-Directional 40 V, 44 V 25.7V 8A Surface Mount SOT-23 - 100nA 3 350W Yes 2 -55 °C
RS Stock No. 171-4248
Mfr. Part No.SP4021-01FTG
BrandLittelfuse
€0.40
Each (In a Pack of 10)
units
Array Uni-Directional 19.6V 6.3V 25A Surface Mount SOD-323 5V 500nA 2 600W Yes 3 -40 °C
RS Stock No. 166-0632
Mfr. Part No.P6SMB33A
BrandLittelfuse
€0.12
Each (On a Reel of 3000)
units
Single Uni-Directional 45.7V 31.4V 13.3A Surface Mount DO-214AA (SMB) 28.2V 1µA 2 600W - 1 -65 °C
RS Stock No. 638-7527
Mfr. Part No.1.5KE400A-E3/54
BrandVishay
€1.156
Each (In a Pack of 5)
units
Single Uni-Directional 548V 380V 2.7A Through Hole 1.5KE 342V 1µA 2 1500W - 1 -55 °C
New
RS Stock No. 192-3880
Mfr. Part No.SMA6F13AY
€0.098
Each (On a Reel of 10000)
units
Single Uni-Directional 21.5 V, 27.2 V 14.4V 29 A, 147 A Surface Mount SMA Flat 13V 1µA 2 600W Yes 1 -55 °C
RS Stock No. 165-6693
Mfr. Part No.BZW50-39
€1.822
Each (On a Tape of 100)
units
Single Uni-Directional 90V 43.3V 667A Through Hole R 6 39V 5µA 2 5000W - 1 -
RS Stock No. 795-8870
Mfr. Part No.SM6T36AY
€0.664
Each (In a Pack of 10)
units
Single Uni-Directional 64.3V 34.2V 62A Surface Mount DO-214AA (SMB) 30.8V 1µA 2 600W - 1 -55 °C
RS Stock No. 163-1226
Mfr. Part No.SZMMBZ6V8ALT1G
€0.025
Each (On a Reel of 3000)
units
Common Anode Uni-Directional 9.6V 6.46V 2.5A Surface Mount SOT-23 47V 500nA 3 24W Yes 2 -55 °C
RS Stock No. 162-9644
Mfr. Part No.SRDA3.3-4DR2G
€0.367
Each (On a Reel of 2500)
units
Complex Array Uni-Directional 15V 5V 10A Surface Mount SOIC 3.3V 5µA 8 500W Yes 4 -55 °C
RS Stock No. 163-2086
Mfr. Part No.CM1213-08MR
€0.313
Each (On a Reel of 4000)
units
Complex Array - - - - - - - - - - - 8 -
RS Stock No. 795-6890
Mfr. Part No.SMA6J5.0CA-TR
€0.197
Each (In a Pack of 25)
units
Single Bi-Directional 13.4V 6.4V 298A Surface Mount DO-214AC (SMA) 5V 50µA 2 600W - 1 -55 °C
RS Stock No. 802-2370
Mfr. Part No.SMBJ78CA
€0.217
Each (In a Pack of 50)
units
Single Bi-Directional 126V 86.7V 4.8A Surface Mount DO-214AA (SMB) 78V 5µA 2 600W - 1 -55 °C
RS Stock No. 823-3138
Mfr. Part No.MMBZ6V8AL-7-F
€0.086
Each (In a Pack of 100)
units
Dual Uni-Directional 9.6V 6.46V 2.5A Surface Mount SOT-23 4.5V 500nA 3 24W Yes 2 -65 °C
RS Stock No. 250-656
Mfr. Part No.USBUF02W6
€0.30
Each (In a Pack of 10)
units
Complex Array - - - - Surface Mount SOT-323 (SC-70) - - 6 - Yes 2 -40 °C
RS Stock No. 764-5502
Mfr. Part No.P6SMB400CA
BrandLittelfuse
€0.48
Each (In a Pack of 10)
units
Single Bi-Directional 548V 380V 1.1A Surface Mount DO-214AA (SMB) 342V 1µA 2 600W - 1 -65 °C
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