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. 183-5557
Mfr. Part No.UMZ6.8NUMTL
BrandROHM
SGD0.155
Each (In a Pack of 100)
units
- Uni-Directional - 6.47V Surface Mount SOT-323FL 5V 3 200mW - Yes 2 - 150 °C
RS Stock No. 133-2832
Mfr. Part No.RSB39VTE-17
BrandROHM
SGD0.121
Each (In a Pack of 100)
units
Single - - - Surface Mount SOD-323FL - 2 - - - 1 - +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. 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. 146-9447
Mfr. Part No.MMBZ5V6ALT116
BrandROHM
SGD0.044
Each (On a Reel of 3000)
units
Common Anode Uni-Directional 8V 5.32V Surface Mount SOT-23 3V 3 24W 3A Yes 2 - +150 °C
RS Stock No. 146-9443
Mfr. Part No.MMBZ27VALT116
BrandROHM
SGD0.047
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. 700-2624
Mfr. Part No.RSA6.1ENTR
BrandROHM
SGD0.508
Each (In a Pack of 5)
units
Common Anode - - - Surface Mount UMD - 5 - - - 4 -55 °C +150 °C
RS Stock No. 183-5192
Mfr. Part No.UMZ30NUMTL
BrandROHM
SGD0.107
Each (On a Reel of 3000)
units
- Uni-Directional - 29.19V Surface Mount SOT-323FL 27V 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. 183-5512
Mfr. Part No.UMZ36NUMTL
BrandROHM
SGD0.155
Each (In a Pack of 100)
units
- Uni-Directional - 35.07V Surface Mount SOT-323FL 33V 3 200mW - Yes 2 - 150 °C
RS Stock No. 183-5570
Mfr. Part No.RSBC6.8CMT2N
BrandROHM
SGD0.178
Each (In a Pack of 80)
units
Single Bi-Directional - 6.62V Surface Mount SOD-923 5V 2 100mW - 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. 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. 183-5190
Mfr. Part No.UMZ18NUMTL
BrandROHM
SGD0.107
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. 183-5181
Mfr. Part No.RSAC6.8CMT2R
BrandROHM
SGD0.071
Each (On a Reel of 8000)
units
Single Bi-Directional - 6.7V Surface Mount SOD-923 5V 2 100mW - - 1 - 150 °C
RS Stock No. 148-6730
Mfr. Part No.MMBZ15VALT116
BrandROHM
SGD0.06
Each (In a Pack of 200)
units
Common Anode Uni-Directional 21V 14.25V Surface Mount SOT-23 12V 3 40W 1.9A Yes 2 - +150 °C
RS Stock No. 183-5665
Mfr. Part No.VS5V0BC1EST15R
BrandROHM
SGD0.083
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. 124-6813
Mfr. Part No.RSB16F2T106
BrandROHM
SGD0.182
Each (In a Pack of 50)
units
Series Bi-Directional - 14.4V Surface Mount SOT-323 (SC-70) 12V 3 0.2W - Yes 2 -55 °C +150 °C
RS Stock No. 146-9448
Mfr. Part No.MMBZ6V2ALT116
BrandROHM
SGD0.044
Each (On a Reel of 3000)
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. 169-0463
Mfr. Part No.RSB6.8GT2R
BrandROHM
SGD0.154
Each (On a Reel of 8000)
units
Single - - - Surface Mount VMD - 2 - - - 1 -55 °C +150 °C