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. 178-5693
Mfr. Part No.EDZCVT2R6.8B
BrandROHM
SGD0.035
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. 146-9436
Mfr. Part No.MMBZ12VALT116
BrandROHM
SGD0.053
Each (On a Reel of 3000)
units
Common Anode Uni-Directional 17V 11.4V Surface Mount SOT-23 8.5V 3 40W 2.35A Yes 2 - +150 °C
RS Stock No. 168-0459
Mfr. Part No.RSA30LTE25
BrandROHM
SGD3.848
Each (On a Reel of 1500)
units
Single Uni-Directional 41.4V 28.5V Surface Mount PMDS, SOD-106 25.6V 2 600W 14.4A Yes 1 - +150 °C
RS Stock No. 124-6812
Mfr. Part No.RSB12JS2T2R
BrandROHM
SGD0.31
Each (In a Pack of 25)
units
Isolated Bi-Directional - 9.6V Surface Mount SC75A 9V 6 0.15W - Yes 2 - +150 °C
RS Stock No. 183-5528
Mfr. Part No.RSB27UM2TL
BrandROHM
SGD0.155
Each (In a Pack of 60)
units
- Bi-Directional - 26.2V Surface Mount SOT-323FL 24V 3 200mW - Yes 2 - 150 °C
RS Stock No. 183-5191
Mfr. Part No.UMZ27NUMTL
BrandROHM
SGD0.107
Each (On a Reel of 3000)
units
- Uni-Directional - 26.19V Surface Mount SOT-323FL 24V 3 200mW - Yes 2 - 150 °C
RS Stock No. 148-6781
Mfr. Part No.MMBZ27VALT116
BrandROHM
SGD0.06
Each (In a Pack of 200)
units
Common Anode Uni-Directional 40V 25.65V Surface Mount SOT-23 22V 3 40W 1A Yes 2 - +150 °C
RS Stock No. 146-9440
Mfr. Part No.MMBZ18VALT116
BrandROHM
SGD0.044
Each (On a Reel of 3000)
units
Common Anode Uni-Directional 25V 17.1V Surface Mount SOT-23 14.5V 3 40W 1.6A Yes 2 - +150 °C
RS Stock No. 146-9454
Mfr. Part No.RSB36F2T106
BrandROHM
SGD0.121
Each (On a Reel of 3000)
units
Single Bi-Directional - - Surface Mount SOT-323 27V 3 - - Yes 2 - +150 °C
RS Stock No. 183-5193
Mfr. Part No.UMZ36NUMTL
BrandROHM
SGD0.107
Each (On a Reel of 3000)
units
- Uni-Directional - 35.07V Surface Mount SOT-323FL 33V 3 200mW - Yes 2 - 150 °C
RS Stock No. 700-2628
Mfr. Part No.RSA6.1U5T108
BrandROHM
SGD0.39
Each (In a Pack of 5)
units
Common Anode - - - Surface Mount SOT-457 (SC-74) - 6 - - - 5 -55 °C +150 °C
RS Stock No. 183-5183
Mfr. Part No.RSB27UM2TL
BrandROHM
SGD0.107
Each (On a Reel of 3000)
units
- Bi-Directional - 26.2V Surface Mount SOT-323FL 24V 3 200mW - Yes 2 - 150 °C
RS Stock No. 183-5184
Mfr. Part No.RSB6.8CMT2N
BrandROHM
SGD0.036
Each (On a Reel of 8000)
units
Single Bi-Directional 16V 5.78V Surface Mount SOD-923 5V 2 100mW 3A Yes 1 - 150 °C
RS Stock No. 168-1466
Mfr. Part No.RSA12LTE25
BrandROHM
SGD4.50
Each (In a Pack of 20)
units
Single Uni-Directional 19.5V 13.3V Surface Mount PMDS, SOD-106 12V 2 600W 31A Yes 1 - +150 °C
RS Stock No. 183-5702
Mfr. Part No.RSAC6.8CMT2R
BrandROHM
SGD0.119
Each (In a Pack of 100)
units
Single Bi-Directional - 6.7V Surface Mount SOD-923 5V 2 100mW - - 1 - 150 °C
RS Stock No. 183-5200
Mfr. Part No.VS5V0BB1EST15R
BrandROHM
SGD0.048
Each (On a Reel of 15000)
units
Single Bi-Directional 11.4V 6V Surface Mount DSN0603 5V 2 100mW 2.2A Yes 1 -55 °C 150 °C
RS Stock No. 183-5678
Mfr. Part No.UMZ27NUMTL
BrandROHM
SGD0.155
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. 183-5602
Mfr. Part No.VS3V3BA1EST15R
BrandROHM
SGD0.083
Each (In a Pack of 150)
units
Single Bi-Directional 8V 4V Surface Mount DSN0603 3.3V 2 100mW 3.5A Yes 1 -55 °C 150 °C
RS Stock No. 146-9451
Mfr. Part No.MMBZ9V1ALT116
BrandROHM
SGD0.044
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. 183-5189
Mfr. Part No.UMZ16NUMTL
BrandROHM
SGD0.107
Each (On a Reel of 3000)
units
- Uni-Directional - 15.85V Surface Mount SOT-323FL 13V 3 200mW - Yes 2 - 150 °C