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. 248-710
Mfr. Part No.ESDA6V1U1RL
$1.51
Each (In a Pack of 5)
units
Common Anode Uni-Directional - 6.1V Surface Mount SOIC 5V 8 200W - Yes 6 -55 °C +125 °C
RS Stock No. 250-072
Mfr. Part No.ESDA6V1-5W6
$0.638
Each (In a Pack of 10)
units
Common Anode Uni-Directional - 6.1V Surface Mount SOT-323 (SC-70) 3V 6 100W - Yes 5 -40 °C +125 °C
RS Stock No. 903-5796
Mfr. Part No.SMAJ15CA
$0.101
Each (On a Reel of 5000)
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. 781-5537
Mfr. Part No.SZMMBZ6V8ALT1G
$0.362
Each (On a Tape of 50)
units
Common Anode Uni-Directional 9.6V 6.46V Surface Mount SOT-23 47V 3 24W 2.5A Yes 2 -55 °C +150 °C
RS Stock No. 163-1226
Mfr. Part No.SZMMBZ6V8ALT1G
$0.081
Each (On a Reel of 3000)
units
Common Anode Uni-Directional 9.6V 6.46V Surface Mount SOT-23 47V 3 24W 2.5A Yes 2 -55 °C +150 °C
RS Stock No. 825-5330
Mfr. Part No.TPD4E1B06DCKR
$0.781
Each (In a Pack of 20)
units
Complex Array Bi-Directional 14.5V 7V Surface Mount SOT-363 (SC-70) 5.5V 6 45W 3A Yes 4 -40 °C +125 °C
RS Stock No. 163-2389
Mfr. Part No.ESD7004MUTAG
$0.158
Each (On a Reel of 3000)
units
- - - - Surface Mount - - - - - - - -55 °C +125 °C
RS Stock No. 885-5331
Mfr. Part No.1.5KE33A-T
$0.912
Each (In a Pack of 20)
units
Single Uni-Directional 45.7V 31.4V Through Hole DO-201 28.2V 2 1500W 33A - 1 -55 °C +175 °C
RS Stock No. 165-8608
Mfr. Part No.1.5KE33A-T
$0.47
Each (On a Reel of 1000)
units
Single Uni-Directional 45.7V 31.4V Through Hole DO-201 28.2V 2 1500W 33A - 1 -55 °C +175 °C
RS Stock No. 103-1074
Mfr. Part No.USB6B1RL
$0.874
Each (On a Reel of 2500)
units
Complex Array Bi-Directional - 6V Surface Mount SOIC 5.2V 8 500W 40A Yes 2 -40 °C +85 °C
RS Stock No. 250-195
Mfr. Part No.HDMIULC6-4SC6
$1.104
Each (In a Pack of 5)
units
Complex Array Uni-Directional 17V 6V Surface Mount SOT-23 5V 6 - - Yes 4 -55 °C +125 °C
RS Stock No. 725-8720
Mfr. Part No.PRTR5V0U2X,215
BrandNexperia
$0.676
Each (In a Pack of 20)
units
Complex Array Uni-Directional - 6V Surface Mount SOT-143B 5.5V 4 - - Yes 2 -40 °C +85 °C
RS Stock No. 166-1736
Mfr. Part No.SMCJ100A
$0.43
Each (On a Reel of 3000)
units
Single Uni-Directional 162V 111V Surface Mount DO-214AB (SMC) 100V 2 1500W 9.3A - 1 - +150 °C
RS Stock No. 793-1967
Mfr. Part No.SP0503BAHTG
BrandLittelfuse
$1.076
Each (In a Pack of 10)
units
Array Uni-Directional 8.5V - Surface Mount SOT-143 5.5V 4 0.22W - Yes 3 -40 °C +85 °C
RS Stock No. 811-6207
Mfr. Part No.5KP26A-E3/54
BrandVishay
$3.296
Each (In a Pack of 5)
units
Single Uni-Directional 42.1V 28.9V Through Hole P600 26V 2 5000W 119A - 1 -55 °C +175 °C
RS Stock No. 146-0992
Mfr. Part No.DS9503P+
$1.154
Each (In a Tube of 120)
units
Single - - - Surface Mount TSOC - 6 - - - 1 -40 °C +85 °C
RS Stock No. 636-8986
Mfr. Part No.SA24A-E3/54
BrandVishay
$1.248
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. 166-0109
Mfr. Part No.SP0503BAHTG
BrandLittelfuse
$0.517
Each (On a Reel of 3000)
units
Array Uni-Directional 8.5V - Surface Mount SOT-143 5.5V 4 0.22W - Yes 3 -40 °C +85 °C
RS Stock No. 122-1212
Mfr. Part No.SM05-7
$0.115
Each (On a Reel of 3000)
units
Common Anode Uni-Directional 20.6V 6.2V Surface Mount SOT-23 5V 3 300W 17A Yes 2 -55 °C +150 °C
RS Stock No. 178-7637
Mfr. Part No.P6KE30CA
$0.233
Each (On a Reel of 4000)
units
Single Bi-Directional 41.4V 31.5V Through Hole DO-15 25.6V 2 600W 14.5A - 1 - +175 °C
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