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. 183-5662
Mfr. Part No.UMZ18NUMTL
BrandROHM
HK$0.826
Each (In a Pack of 100)
units
- Uni-Directional - 17.56V Surface Mount SOT-323FL 16V 3 200mW - Yes 2 - 150 °C
RS Stock No. 146-9453
Mfr. Part No.RSB33F2T106
BrandROHM
HK$0.713
Each (On a Reel of 3000)
units
Single Bi-Directional - - Surface Mount SOT-323 25V 3 - - Yes 2 - +150 °C
RS Stock No. 148-5768
Mfr. Part No.MMBZ6V2ALT116
BrandROHM
HK$0.314
Each (In a Pack of 200)
units
Common Anode Uni-Directional 8.7V 5.89V Surface Mount SOT-23 3V 3 24W 2.76A Yes 2 - +150 °C
RS Stock No. 146-9454
Mfr. Part No.RSB36F2T106
BrandROHM
HK$0.65
Each (On a Reel of 3000)
units
Single Bi-Directional - - Surface Mount SOT-323 27V 3 - - Yes 2 - +150 °C
RS Stock No. 146-9451
Mfr. Part No.MMBZ9V1ALT116
BrandROHM
HK$0.261
Each (On a Reel of 3000)
units
Common Anode Uni-Directional 14V 8.65V Surface Mount SOT-23 6V 3 24W 1.7A Yes 2 - +150 °C
RS Stock No. 169-0463
Mfr. Part No.RSB6.8GT2R
BrandROHM
HK$0.873
Each (On a Reel of 8000)
units
Single - - - Surface Mount VMD - 2 - - - 1 -55 °C +150 °C
RS Stock No. 183-5665
Mfr. Part No.VS5V0BC1EST15R
BrandROHM
HK$0.445
Each (In a Pack of 150)
units
Single Bi-Directional 12V 6V Surface Mount DSN0603 5V 2 100mW 5A Yes 1 -55 °C 150 °C
RS Stock No. 183-5678
Mfr. Part No.UMZ27NUMTL
BrandROHM
HK$0.826
Each (In a Pack of 100)
units
- Uni-Directional - 26.19V Surface Mount SOT-323FL 24V 3 200mW - Yes 2 - 150 °C
RS Stock No. 146-9455
Mfr. Part No.RSB6.8F2T106
BrandROHM
HK$0.713
Each (On a Reel of 3000)
units
Single Bi-Directional - - Surface Mount SOT-323 3.5V 3 - - Yes 2 -55 °C +150 °C
RS Stock No. 183-5198
Mfr. Part No.VS3V3BA1EST15R
BrandROHM
HK$0.254
Each (On a Reel of 15000)
units
Single Bi-Directional 8V 4V Surface Mount DSN0603 3.3V 2 100mW 3.5A Yes 1 -55 °C 150 °C
RS Stock No. 148-5723
Mfr. Part No.MMBZ5V6ALT116
BrandROHM
HK$0.314
Each (In a Pack of 200)
units
Common Anode Uni-Directional 8V 5.32V Surface Mount SOT-23 3V 3 24W 3A Yes 2 - +150 °C
RS Stock No. 124-6815
Mfr. Part No.RSB36VTE-17
BrandROHM
HK$1.84
Each (In a Pack of 60)
units
Single Bi-Directional - 32.4V Surface Mount SOD-323FL 27V 2 0.2W - Yes 1 - +150 °C
RS Stock No. 178-5693
Mfr. Part No.EDZCVT2R6.8B
BrandROHM
HK$0.191
Each (On a Reel of 8000)
units
Single Uni-Directional - 6.65V Surface Mount SOD-523 5V 2 150mW - Yes 1 - +150 °C
RS Stock No. 183-5190
Mfr. Part No.UMZ18NUMTL
BrandROHM
HK$0.572
Each (On a Reel of 3000)
units
- Uni-Directional - 17.56V Surface Mount SOT-323FL 16V 3 200mW - Yes 2 - 150 °C
RS Stock No. 146-9443
Mfr. Part No.MMBZ27VALT116
BrandROHM
HK$0.261
Each (On a Reel of 3000)
units
Common Anode Uni-Directional 40V 25.65V Surface Mount SOT-23 22V 3 40W 1A Yes 2 - +150 °C
RS Stock No. 183-5202
Mfr. Part No.VS5V0BC1EST15R
BrandROHM
HK$0.254
Each (On a Reel of 15000)
units
Single Bi-Directional 12V 6V Surface Mount DSN0603 5V 2 100mW 5A Yes 1 -55 °C 150 °C
RS Stock No. 183-5505
Mfr. Part No.RSB12WMTL
BrandROHM
HK$0.953
Each (In a Pack of 60)
units
- Uni-Directional - 9.6V Surface Mount SOT-416FL 9V 3 150mW - Yes 2 - 150 °C
RS Stock No. 148-6844
Mfr. Part No.MMBZ33VALT116
BrandROHM
HK$0.418
Each (In a Pack of 200)
units
Common Anode Uni-Directional 46V 31.35V Surface Mount SOT-23 26V 3 40W 0.87A Yes 2 - +150 °C
RS Stock No. 148-5774
Mfr. Part No.RSB33F2T106
BrandROHM
HK$0.833
Each (In a Pack of 100)
units
Single Bi-Directional - - Surface Mount SOT-323 25V 3 - - Yes 2 - +150 °C
RS Stock No. 183-5185
Mfr. Part No.RSBC6.8CMT2N
BrandROHM
HK$0.635
Each (On a Reel of 8000)
units
Single Bi-Directional - 6.62V Surface Mount SOD-923 5V 2 100mW - Yes 1 - 150 °C