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. 146-0493
Mfr. Part No.MMBZ27VCL,215
BrandNexperia
$0.087
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. 486-4319
Mfr. Part No.1.5KE33CA
$1.276
Each (In a Pack of 5)
units
Single Bi-Directional 59V 31.4V Through Hole DO-201 28.2V 2 1500W 169A - 1 -65 °C +175 °C
RS Stock No. 165-6954
Mfr. Part No.SA16A-E3/54
BrandVishay
$0.556
Each (On a Reel of 4000)
units
Single Uni-Directional 26V 17.8V Through Hole DO-204AC 16V 2 500W 19.2A - 1 -55 °C +175 °C
RS Stock No. 687-3867
Mfr. Part No.P6KE22CA R0
$0.758
Each (In a Pack of 20)
units
Single Bi-Directional 30.6V 20.9V Through Hole DO-15 18.8V 2 600W 20A - 1 -55 °C +175 °C
RS Stock No. 169-9105
Mfr. Part No.P6KE22CA R0
$0.422
Each (On a Tape of 3500)
units
Single Bi-Directional 30.6V 20.9V Through Hole DO-15 18.8V 2 600W 20A - 1 -55 °C +175 °C
RS Stock No. 102-6164
Mfr. Part No.BZW50-15
$3.474
Each (In a Bag of 100)
units
Single Uni-Directional 35V 16.6V Through Hole R 6 15V 2 5000W 1714A - 1 -65 °C +175 °C
RS Stock No. 102-6179
Mfr. Part No.1.5KE30A
$0.458
Each (In a Bag of 600)
units
Single Uni-Directional 53.5V 28.5V Through Hole DO-201 25.6V 2 1500W 187A - 1 -65 °C +175 °C
RS Stock No. 816-6776
Mfr. Part No.PESD5V0X1BT,215
BrandNexperia
$0.491
Each (In a Pack of 50)
units
Common Anode Bi-Directional - 5.8V Surface Mount SOT-23 5V 3 - - Yes 2 -55 °C +150 °C
RS Stock No. 812-9257
Mfr. Part No.SA16A-E3/54
BrandVishay
$0.622
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. 786-4589
Mfr. Part No.SMS05T1G
$0.514
Each (In a Pack of 25)
units
Common Anode Uni-Directional - 6V Surface Mount SC-74 15.5V 6 350W - Yes 4 -55 °C +150 °C
RS Stock No. 162-9641
Mfr. Part No.SMS05T1G
$0.189
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. 791-8876
Mfr. Part No.MMBZ27VCL,215
BrandNexperia
$0.161
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. 486-4296
Mfr. Part No.1.5KE30A
$1.052
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
RS Stock No. 795-6818
Mfr. Part No.SMAJ170CA-TR
$0.481
Each (On a Tape of 50)
units
Single Bi-Directional 353V 189V Surface Mount DO-214AC (SMA) 170V 2 400W 6.5A - 1 -55 °C +150 °C
RS Stock No. 168-6204
Mfr. Part No.SM6T150A
$0.228
Each (On a Reel of 2500)
units
Single Uni-Directional 265V 143V Surface Mount DO-214AA (SMB) 128V 2 600W 15A - 1 -55 °C +150 °C
RS Stock No. 362-424
Mfr. Part No.DF5A6.2F(F)
BrandToshiba
$0.642
Each (In a Pack of 10)
units
Common Anode - - - Surface Mount SMV - 5 - - - 4 -55 °C +125 °C
RS Stock No. 165-7473
Mfr. Part No.SMAJ12A-TR
$0.163
Each (On a Reel of 5000)
units
Single Uni-Directional 25.3V 13.3V Surface Mount DO-214AC (SMA) 12V 2 400W 91A Yes 1 -55 °C +150 °C
RS Stock No. 725-8786
Mfr. Part No.PESD5V0S1BL,315
BrandNexperia
$0.584
Each (On a Tape of 20)
units
Single Bi-Directional 14V 5.5V Surface Mount SOD-882 5V 2 130W 12A Yes 1 -65 °C +150 °C
RS Stock No. 178-7421
Mfr. Part No.SMAJ170CA-TR
$0.168
Each (On a Reel of 5000)
units
Single Bi-Directional 353V 189V Surface Mount DO-214AC (SMA) 170V 2 400W 6.5A - 1 -55 °C +150 °C
RS Stock No. 485-6986
Mfr. Part No.BZW50-15
$4.74
Each
units
Single Uni-Directional 35V 16.6V Through Hole R 6 15V 2 5000W 1714A - 1 -65 °C +175 °C
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