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 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. 811-6184
Mfr. Part No.5KASMC18AHM3_A/H
BrandVishay
$1.475
Each (In a Pack of 10)
units
Single Uni-Directional 29.2V 20V Surface Mount DO-214AB (SMC) 18V 2 5000W 171.2A - 1 -65 °C +185 °C
RS Stock No. 717-3451
Mfr. Part No.TBU-CA025-300-WH
BrandBourns
$2.09
Each (In a Pack of 5)
units
Single Bi-Directional 250V - Surface Mount DFN 20V 2 - 0.6A - 1 -55 °C +125 °C
RS Stock No. 177-5419
Mfr. Part No.TBU-CA025-300-WH
BrandBourns
$1.243
Each (On a Reel of 3000)
units
Single Bi-Directional 250V - Surface Mount DFN 20V 2 - 0.6A - 1 -55 °C +125 °C
RS Stock No. 169-0461
Mfr. Part No.RSA6.1ENTR
BrandROHM
$0.189
Each (On a Reel of 3000)
units
Common Anode - - - Surface Mount UMD - 5 - - - 4 -55 °C +150 °C
RS Stock No. 543-8696
Mfr. Part No.P6KE51A
$0.794
Each (In a Pack of 5)
units
Single Uni-Directional 70.1V 48.5V Through Hole DO-15 43.6V 2 600W 8.6A - 1 -65 °C +175 °C
RS Stock No. 249-050
Mfr. Part No.DALC208SC6
$0.674
Each (In a Pack of 10)
units
Complex Array - - - Surface Mount SOT-23 - 6 - - - 4 -55 °C +150 °C
RS Stock No. 102-6163
Mfr. Part No.1N5908
$0.761
Each (In a Bag of 600)
units
Single Uni-Directional 8V 6V Through Hole DO-201 5V 2 1500W 30A - 1 -55 °C +175 °C
RS Stock No. 146-0854
Mfr. Part No.MMBZ6V8AL,215
BrandNexperia
$0.042
Each (On a Reel of 3000)
units
Dual Uni-Directional 9.6V 6.46V Surface Mount SOT-23 4.5V 3 24W 2.5A Yes 2 -55 °C +150 °C
RS Stock No. 700-2624
Mfr. Part No.RSA6.1ENTR
BrandROHM
$0.478
Each (In a Pack of 5)
units
Common Anode - - - Surface Mount UMD - 5 - - - 4 -55 °C +150 °C
RS Stock No. 170-8314
Mfr. Part No.5KASMC18AHM3/57
BrandVishay
$2.356
Each (On a Reel of 850)
units
Single Uni-Directional 29.2V 20V Surface Mount DO-214AB (SMC) 18V 2 5000W 171.2A - 1 -65 °C +185 °C
RS Stock No. 791-8882
Mfr. Part No.MMBZ6V8AL,215
BrandNexperia
$0.056
Each (On a Tape of 150)
units
Dual Uni-Directional 9.6V 6.46V Surface Mount SOT-23 4.5V 3 24W 2.5A Yes 2 -55 °C +150 °C
RS Stock No. 543-8719
Mfr. Part No.P6KE120A
$0.79
Each (In a Pack of 5)
units
Single Uni-Directional 165V 114V Through Hole DO-15 102V 2 600W 3.6A - 1 -65 °C +175 °C
RS Stock No. 166-2566
Mfr. Part No.P6KE13CA
$0.339
Each (On a Reel of 4000)
units
Single Bi-Directional 18.2V 12.4V Through Hole DO-15 11V 2 600W 33A - 1 -65 °C +175 °C
RS Stock No. 486-4274
Mfr. Part No.1.5KE24CA
$0.872
Each (In a Pack of 5)
units
Single Bi-Directional 42.8V 22.8V Through Hole DO-201 20.5V 2 1500W 234A - 1 -65 °C +175 °C
RS Stock No. 751-4979
Mfr. Part No.SMAJ15CA-13-F
$0.351
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. 791-8876
Mfr. Part No.MMBZ27VCL,215
BrandNexperia
$0.048
Each (In a Pack of 150)
units
Common Anode Uni-Directional 38V 25.65V Surface Mount SOT-23 22V 3 40W 1A Yes 2 -55 °C +150 °C
RS Stock No. 812-9257
Mfr. Part No.SA16A-E3/54
BrandVishay
$0.506
Each (In a Pack of 20)
units
Single Uni-Directional 26V 17.8V Through Hole DO-204AC 16V 2 500W 19.2A - 1 -55 °C +175 °C
RS Stock No. 162-9641
Mfr. Part No.SMS05T1G
$0.187
Each (On a Reel of 3000)
units
Common Anode Uni-Directional - 6V Surface Mount SC-74 15.5V 6 350W - Yes 4 -55 °C +150 °C
RS Stock No. 146-0493
Mfr. Part No.MMBZ27VCL,215
BrandNexperia
$0.044
Each (On a Reel of 3000)
units
Common Anode Uni-Directional 38V 25.65V Surface Mount SOT-23 22V 3 40W 1A Yes 2 -55 °C +150 °C
RS Stock No. 486-4296
Mfr. Part No.1.5KE30A
$0.842
Each (In a Pack of 5)
units
Single Uni-Directional 53.5V 28.5V Through Hole DO-201 25.6V 2 1500W 187A - 1 -65 °C +175 °C
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