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. 638-8700
Mfr. Part No.1.5KE8.2CA-E3/54
BrandVishay
$0.978
Each (In a Pack of 5)
units
Single Bi-Directional 12.1V 7.79V Through Hole 1.5KE 7V 2 1500W 124A - 1 -55 °C +175 °C
RS Stock No. 165-2360
Mfr. Part No.1.5KE8.2CA-E3/54
BrandVishay
$0.793
Each (On a Tape of 1400)
units
Single Bi-Directional 12.1V 7.79V Through Hole 1.5KE 7V 2 1500W 124A - 1 -55 °C +175 °C
RS Stock No. 815-2581
Mfr. Part No.ICTE5-E3/54
BrandVishay
$1.016
Each (In a Pack of 10)
units
Single Uni-Directional 7.1V 6V Through Hole 1.5KE 5V 2 1500W 160A - 1 -55 °C +175 °C
RS Stock No. 165-6268
Mfr. Part No.ICTE5-E3/54
BrandVishay
$1.039
Each (On a Tape of 1400)
units
Single Uni-Directional 7.1V 6V Through Hole 1.5KE 5V 2 1500W 160A - 1 -55 °C +175 °C
RS Stock No. 918-9405
Mfr. Part No.5KP30A-E3/54
BrandVishay
$2.101
Each (On a Reel of 800)
units
Single Uni-Directional 48.4V 33.3V Through Hole P600 30V 2 1500W 103A Yes 1 -55 °C +175 °C
RS Stock No. 638-7779
Mfr. Part No.5KP30A-E3/54
BrandVishay
$2.842
Each (In a Pack of 5)
units
Single Uni-Directional 48.4V 33.3V Through Hole P600 30V 2 5000W 103A - 1 -55 °C +175 °C
RS Stock No. 638-7640
Mfr. Part No.5KP15A-E3/54
BrandVishay
$2.97
Each (In a Pack of 5)
units
Single Uni-Directional 24.4V 16.7V Through Hole P600 15V 2 5000W 205A - 1 -55 °C +175 °C
RS Stock No. 699-8001
Mfr. Part No.SM8S30AHE3_A/I
BrandVishay
$5.17
Each
units
Single Uni-Directional 48.4V 33.3V Surface Mount DO-218AB 30V 2 6600W 136A Yes 1 -55 °C +175 °C
RS Stock No. 918-9391
Mfr. Part No.5KP15A-E3
BrandVishay
$2.017
Each (On a Reel of 800)
units
Single Uni-Directional 24.4V 16.7V Through Hole P600 15V 2 5000W 205A - 1 -55 °C +175 °C
RS Stock No. 169-6092
Mfr. Part No.SM8S30AHE3_A/I
BrandVishay
$3.07
Each (On a Reel of 750)
units
Single Uni-Directional 48.4V 33.3V Surface Mount DO-218AB 30V 2 6600W 136A Yes 1 -55 °C +175 °C
RS Stock No. 145-2041
Mfr. Part No.GSOT12-E3-08
BrandVishay
$0.075
Each (On a Reel of 3000)
units
Single Uni-Directional 18.7V 13.5V Surface Mount SOT-23 12V 3 312W 12A Yes 1 -40 °C +125 °C
RS Stock No. 815-2556
Mfr. Part No.GSOT12-E3-08
BrandVishay
$0.226
Each (In a Pack of 100)
units
Single Uni-Directional 18.7V 13.5V Surface Mount SOT-23 12V 3 312W 12A Yes 1 -40 °C +125 °C
RS Stock No. 629-5917
Mfr. Part No.1.5KE9.1CA-E3/54
BrandVishay
$0.978
Each (In a Pack of 5)
units
Single Bi-Directional 13.4V 8.65V Through Hole 1.5KE 7.8V 2 1500W 112A - 1 -55 °C +175 °C
RS Stock No. 919-0913
Mfr. Part No.SMAJ5.0A-E3/61
BrandVishay
$0.136
Each (On a Reel of 1800)
units
Single Uni-Directional 9.2V 6.4V Surface Mount DO-214AC (SMA) 5V 2 400W 43.5A - 1 -55 °C +150 °C
RS Stock No. 918-9262
Mfr. Part No.1.5KE9.1CA-E3/54
BrandVishay
$0.648
Each (On a Reel of 1400)
units
Single Bi-Directional 13.4V 8.65V Through Hole 1.5KE 7.8V 2 1500W 112A Yes 1 -55 °C +175 °C
RS Stock No. 710-4976
Mfr. Part No.SMAJ5.0A-E3/61
BrandVishay
$0.404
Each (In a Pack of 25)
units
Single Uni-Directional 9.2V 6.4V Surface Mount DO-214AC (SMA) 5V 2 400W 43.5A - 1 -55 °C +150 °C
RS Stock No. 710-3484
Mfr. Part No.SMAJ5.0A-E3/5A
BrandVishay
$0.436
Each (In a Pack of 10)
units
Single Uni-Directional 9.2V 6.4V Surface Mount DO-214AC (SMA) 5V 2 400W 43.5A - 1 -55 °C +150 °C
RS Stock No. 636-8986
Mfr. Part No.SA24A-E3/54
BrandVishay
$1.124
Each (In a Pack of 5)
units
Single Uni-Directional 38.9V 26.7V Through Hole DO-15 24V 2 500W 12.9A - 1 -55 °C +175 °C
RS Stock No. 918-9357
Mfr. Part No.SA24A-E3
BrandVishay
$0.423
Each (On a Reel of 4000)
units
Single Uni-Directional 38.9V 26.7V Through Hole DO-15 24V 2 500W 12.9A - 1 -55 °C +175 °C
RS Stock No. 919-0290
Mfr. Part No.SMAJ5.0A-E3/5A
BrandVishay
$0.233
Each (On a Reel of 7500)
units
Single Uni-Directional 9.2V 6.4V Surface Mount DO-214AC (SMA) 5V 2 400W 43.5A - 1 -55 °C +150 °C