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. 121-9348
Mfr. Part No.TPD4E001DBVR
€0.183
Each (On a Reel of 3000)
units
Complex Array Uni-Directional 100V 11V 5.5A Surface Mount SOT-23 5.5V 1nA 6 100W Yes 4 -40 °C
RS Stock No. 170-0817
Mfr. Part No.UCLAMP3311P.TCT
BrandSemtech
€0.262
Each (On a Reel of 3000)
units
Single Bi-Directional 18V - 5A Surface Mount SLP EP 3.3V 500nA 2 90W Yes 1 -40 °C
RS Stock No. 751-4922
Mfr. Part No.SD05-7
€0.036
Each (In a Pack of 100)
units
Single Uni-Directional 14.5V 6.2V 24A Surface Mount SOD-323 5V 10µA 2 350W Yes 1 -55 °C
RS Stock No. 624-7700
Mfr. Part No.USBLC6-4SC6
€0.355
Each (In a Pack of 10)
units
Complex Array Uni-Directional 17V 6V 5A Surface Mount SOT-23 5V 2µA 6 - Yes 4 -40 °C
RS Stock No. 919-6371
Mfr. Part No.1.5KE300CA
€0.41
Each (In a Bag of 600)
units
Single Bi-Directional 529V 285V 19A Through Hole DO-201 256V 1µA 2 1500W - 1 -65 °C
RS Stock No. 166-1414
Mfr. Part No.PESD5V0U1UT,215
BrandNexperia
€0.045
Each (On a Reel of 3000)
units
Single Uni-Directional 21V 7V 5A Surface Mount SOT-23 (TO-236AB) 5V 1µA 3 80W Yes 1 -65 °C
RS Stock No. 166-1168
Mfr. Part No.ESD101B102ELE6327XTMA1
BrandInfineon
€0.055
Each (On a Reel of 15000)
units
Single Bi-Directional 30V - - Surface Mount TSLP - 20nA 2 30W Yes 1 -55 °C
RS Stock No. 165-6994
Mfr. Part No.P6KE16CA-E3/54
BrandVishay
€0.188
Each (On a Reel of 4000)
units
Single Bi-Directional 22.5V 15.2V 26.7A Through Hole DO-204AC 13.6V 1µA 2 600W - 1 -55 °C
RS Stock No. 920-6272
Mfr. Part No.USBLC6-4SC6
€0.14
Each (On a Reel of 3000)
units
Complex Array Uni-Directional 17V 6V 5A Surface Mount SOT-23 5V 2µA 6 - Yes 4 -40 °C
RS Stock No. 509-009
Mfr. Part No.PESD5V0U1UT,215
BrandNexperia
€0.047
Each (In a Pack of 20)
units
Single Uni-Directional 21V 7V 5A Surface Mount SOT-23 (TO-236AB) 5V 1µA 3 80W Yes 1 -65 °C
RS Stock No. 710-3516
Mfr. Part No.SMBJ18CA-E3/5B
BrandVishay
€0.118
Each (In a Pack of 20)
units
Single Bi-Directional 29.2V 20V 20.5A Surface Mount DO-214AA (SMB) 18V 1µA 2 600W - 1 -55 °C
RS Stock No. 699-8063
Mfr. Part No.SMBJ45CA-E3/52
BrandVishay
€0.274
Each (In a Pack of 20)
units
Single Bi-Directional 80.3V 50V 7.5A Surface Mount DO-214AA (SMB) 45V 1µA 2 600W Yes 1 -55 °C
RS Stock No. 811-9972
Mfr. Part No.P6KE16CA-E3/54
BrandVishay
€0.177
Each (In a Pack of 25)
units
Single Bi-Directional 22.5V 15.2V 26.7A Through Hole DO-204AC 13.6V 1µA 2 600W - 1 -55 °C
RS Stock No. 162-8770
Mfr. Part No.TPD4E1B06DCKR
€0.162
Each (On a Reel of 3000)
units
Complex Array Bi-Directional 14.5V 7V 3A Surface Mount SOT-363 (SC-70) 5.5V 500pA 6 45W Yes 4 -40 °C
RS Stock No. 543-8696
Mfr. Part No.P6KE51A
€0.406
Each (In a Pack of 5)
units
Single Uni-Directional 70.1V 48.5V 8.6A Through Hole DO-15 43.6V 5µA 2 600W - 1 -65 °C
RS Stock No. 166-2575
Mfr. Part No.P6KE51A
€0.156
Each (On a Reel of 4000)
units
Single Uni-Directional 70.1V 48.5V 8.6A Through Hole DO-15 43.6V 5µA 2 600W - 1 -65 °C
RS Stock No. 486-0654
Mfr. Part No.1.5KE300CA
€0.754
Each (In a Pack of 5)
units
Single Bi-Directional 529V 285V 19A Through Hole DO-201 256V 1µA 2 1500W - 1 -65 °C
RS Stock No. 811-9947
Mfr. Part No.P4SMA47AHE3/5A
BrandVishay
€0.071
Each (In a Pack of 25)
units
Single Uni-Directional 64.8V 44.7V 6.2A Surface Mount DO-214AC (SMA) 40.2V 1µA 2 400W - 1 -65 °C
RS Stock No. 902-6691
Mfr. Part No.GSOT05-E3-08
BrandVishay
€0.035
Each (In a Pack of 100)
units
Single Bi-Directional 8.7V 6V 30A Surface Mount SOT-23 5V 20µA 3 480W Yes 1 -40 °C
RS Stock No. 714-6954
Mfr. Part No.BZW04-15
€0.356
Each (In a Pack of 20)
units
Single Uni-Directional 32.5V 17.1V 71A Through Hole DO-15 15.3V 1µA 2 400W - 1 -65 °C
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