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. 509-128
Mfr. Part No.PESD24VS4UD,115
BrandNexperia
€0.072
Each (In a Pack of 20)
units
Common Anode Uni-Directional 52V 25.5V 4A Surface Mount TSOP 24V 15nA 6 200W Yes 4 -65 °C
RS Stock No. 691-0776
Mfr. Part No.SDC15.TCT
BrandSemtech
€0.788
Each (In a Pack of 5)
units
Common Cathode Uni-Directional 21.2V 14.3V 10A Surface Mount SOT-23 12.8V 100nA 3 300W Yes 2 -55 °C
RS Stock No. 171-4294
Mfr. Part No.SMF5.0A
BrandLittelfuse
€0.25
Each (In a Pack of 25)
units
Single Uni-Directional 9.2V 6.4V 21.7A Surface Mount SOD-123FL 5V 400µA 2 200W Yes 1 -65 °C
RS Stock No. 791-8888
Mfr. Part No.MMBZ6V2AL,215
BrandNexperia
€0.011
Each (In a Pack of 150)
units
Dual Uni-Directional 8.7V 5.89V 2.7A Surface Mount SOT-23 3V 200nA 3 24W Yes 2 -55 °C
RS Stock No. 162-1580
Mfr. Part No.SMBJ20D-M3/H
BrandVishay
€0.227
Each (In a Pack of 25)
units
- Uni-Directional 32V 22.5V 18.8A Surface Mount DO-214AA (SMB) 20V 500nA 2 600W - - -55 °C
RS Stock No. 725-6601
Mfr. Part No.TBU-DT065-100-WH
BrandBourns
€1.714
Each (In a Pack of 5)
units
Dual Uni-Directional 650V - 0.2A Surface Mount DFN 18V - 4 - - 2 -40 °C
RS Stock No. 819-3737
Mfr. Part No.SMBJ8.0A-E3/52
BrandVishay
€0.106
Each (In a Pack of 20)
units
Single Uni-Directional 13.6V 8.89V 44.1A Surface Mount DO-214AA (SMB) 8V 50µA 2 600W - 1 -55 °C
RS Stock No. 812-0086
Mfr. Part No.P6SMB20A-E3/52
BrandVishay
€0.108
Each (In a Pack of 20)
units
Single Uni-Directional 27.7V 19V 21.7A Surface Mount DO-214AA (SMB) 17V 1µA 2 600W - 1 -65 °C
RS Stock No. 171-4206
Mfr. Part No.XGD10603MR
BrandLittelfuse
€0.34
Each (In a Pack of 20)
units
Single Bi-Directional 40V - - Surface Mount 0603 - <1nA 2 - Yes 2 -65 °C
RS Stock No. 169-9075
Mfr. Part No.SMAJ60CA R3
€0.108
Each (On a Reel of 1800)
units
Single Bi-Directional 96.8V 66.7V 4.1A Surface Mount DO-214AC (SMA) 60V 5µA 2 - Yes 1 -55 °C
RS Stock No. 825-5334
Mfr. Part No.TPD4E1U06DBVR
€0.27
Each (In a Pack of 20)
units
Complex Array Uni-Directional 15V 6.5V 3A Surface Mount SOT-23 5.5V 10nA 6 45W Yes 4 -40 °C
RS Stock No. 180-8153
Mfr. Part No.VBUS052CD-FAH-GS08
BrandVishay
€0.47
Each (In a Pack of 20)
units
- - - - - - - - - - - - - -
New
RS Stock No. 192-5184
Mfr. Part No.SMB6F16A
€0.245
Each (In a Pack of 50)
units
Single Uni-Directional 26 V, 34.7 V 17.9V 23.1 A, 115 A Surface Mount SMB Flat (DO221-AA) 16V 1µA 2 600W Yes 1 -55 °C
RS Stock No. 166-0867
Mfr. Part No.STIEC45-30AS
€0.799
Each (On a Reel of 2500)
units
Single Uni-Directional 55V 33.3V 500A Surface Mount DO-214AB (SMC) 30V 1µA 2 - - 1 -55 °C
RS Stock No. 903-5500
Mfr. Part No.1.5KE12CA
€0.09
Each (On a Tape of 1200)
units
Single Bi-Directional 16.7V 11.4V 90A Through Hole DO-201 10.2V 5µA 2 1500W - 1 -55 °C
RS Stock No. 903-5799
Mfr. Part No.SMAJ16CA
€0.05
Each (On a Reel of 5000)
units
Single Bi-Directional 26V 17.8V 15.3A Surface Mount DO-214AC (SMA) 16V 5µA 2 400W - 1 -55 °C
RS Stock No. 166-3003
Mfr. Part No.SMBJ16CA
€0.107
Each (On a Reel of 3000)
units
Single Bi-Directional 26V 17.8V 23.1A Surface Mount DO-214AA (SMB) 16V 5µA 2 600W - 1 -55 °C
RS Stock No. 171-9617
Mfr. Part No.SD05-01FTG
BrandLittelfuse
€0.259
Each (In a Pack of 25)
units
Single Uni-Directional 13V - 30A Surface Mount SOD-323 5V 1µA 2 - Yes 1 -40 °C
RS Stock No. 786-4624
Mfr. Part No.SZ1SMB15CAT3G
BrandLittelfuse
€0.593
Each (In a Pack of 10)
units
Single Bi-Directional 24.4V 16.7V 24A Surface Mount DO-214AA (SMB) 15V 5µA 2 600W Yes 1 -65 °C
RS Stock No. 171-8407
Mfr. Part No.NSPM0061MUT5G
€0.096
Each (In a Pack of 100)
units
Single Uni-Directional 11.5V 6.5V 70A Surface Mount UDFN - 1µA 2 - Yes 1 -65 °C
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