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. 145-3509
Mfr. Part No.MMBZ20VALT1G
$0.04
Each (On a Reel of 3000)
units
Common Anode Uni-Directional 28V 19V Surface Mount SOT-23 17V 3 40W 1.4A Yes 2 -55 °C +150 °C
RS Stock No. 687-8231
Mfr. Part No.MMBZ20VALT1G
$0.079
Each (In a Pack of 25)
units
Common Anode Uni-Directional 28V 19V Surface Mount SOT-23 17V 3 40W 1.4A Yes 2 -55 °C +150 °C
RS Stock No. 543-8680
Mfr. Part No.P6KE47A
$0.788
Each (In a Pack of 5)
units
Single Uni-Directional 64.8V 44.7V Through Hole DO-15 40.2V 2 600W 9.3A - 1 -65 °C +175 °C
RS Stock No. 166-1770
Mfr. Part No.P6KE47A
$0.30
Each (On a Reel of 4000)
units
Single Uni-Directional 64.8V 44.7V Through Hole DO-15 40.2V 2 600W 9.3A - 1 -65 °C +175 °C
RS Stock No. 543-8400
Mfr. Part No.P6KE13CA
$1.044
Each (In a Pack of 5)
units
Single Bi-Directional 18.2V 12.4V Through Hole DO-15 11V 2 600W 33A - 1 -65 °C +175 °C
RS Stock No. 166-2575
Mfr. Part No.P6KE51A
$0.30
Each (On a Reel of 4000)
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. 166-2569
Mfr. Part No.P6KE120A
$0.30
Each (On a Reel of 4000)
units
Single Uni-Directional 165V 114V Through Hole DO-15 102V 2 600W 3.6A - 1 -65 °C +175 °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
$0.362
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. 543-8696
Mfr. Part No.P6KE51A
$0.756
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. 162-9641
Mfr. Part No.SMS05T1G
$0.223
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. 786-4589
Mfr. Part No.SMS05T1G
$0.328
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. 464-255
Mfr. Part No.NUP2105LT1G
$0.51
Each (In a Pack of 20)
units
Series Bi-Directional 44V 26.2V Surface Mount SOT-23 24V 3 350W 8A Yes 2 -55 °C +150 °C
RS Stock No. 166-1736
Mfr. Part No.SMCJ100A
$0.331
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. 802-3339
Mfr. Part No.SMCJ100A
$0.569
Each (In a Pack of 20)
units
Single Uni-Directional 162V 111V Surface Mount DO-214AB (SMC) 100V 2 1500W 9.3A - 1 - +150 °C
RS Stock No. 163-1218
Mfr. Part No.SZMMBZ15VALT3G
$0.058
Each (On a Reel of 10000)
units
Common Anode Uni-Directional 21V 14.25V Surface Mount SOT-23 - 3 40W 1.9A Yes 2 -55 °C +150 °C
RS Stock No. 781-5537
Mfr. Part No.SZMMBZ6V8ALT1G
$0.206
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. 145-4208
Mfr. Part No.MMQA27VT1G
$0.125
Each (On a Reel of 3000)
units
Common Anode Uni-Directional 39V 25.7V Surface Mount SC-74 21V 6 150W - Yes 4 -55 °C +150 °C
RS Stock No. 166-3036
Mfr. Part No.1V5KE350A
$0.505
Each (On a Reel of 1250)
units
Single Uni-Directional 482V 333V Through Hole DO-201AE 300V 2 1500W 3.2A - 1 -55 °C +175 °C
RS Stock No. 162-9212
Mfr. Part No.NUF2042XV6T1G
$0.239
Each (On a Reel of 4000)
units
Complex Array Bi-Directional - 5.6V Surface Mount SOT-563 3.3V 6 0.22W - Yes 5 -55 °C +125 °C