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. 169-0461
Mfr. Part No.RSA6.1ENTR
BrandROHM
$0.189
Each (On a Reel of 3000)
units
Common Anode - - - Surface Mount UMD - 5 - - - 4 -55 °C +150 °C
RS Stock No. 700-2624
Mfr. Part No.RSA6.1ENTR
BrandROHM
$0.478
Each (In a Pack of 5)
units
Common Anode - - - Surface Mount UMD - 5 - - - 4 -55 °C +150 °C
RS Stock No. 124-6815
Mfr. Part No.RSB36VTE-17
BrandROHM
$0.153
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. 148-5754
Mfr. Part No.MMBZ12VALT116
BrandROHM
$0.072
Each (In a Pack of 200)
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. 183-5557
Mfr. Part No.UMZ6.8NUMTL
BrandROHM
$0.171
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. 124-6816
Mfr. Part No.RSB5.6SMT2N
BrandROHM
$0.071
Each (In a Pack of 150)
units
Single Bi-Directional - 4.76V Surface Mount SOD-523 2.5V 2 10W - Yes 1 -55 °C +150 °C
RS Stock No. 146-9436
Mfr. Part No.MMBZ12VALT116
BrandROHM
$0.058
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. 146-9451
Mfr. Part No.MMBZ9V1ALT116
BrandROHM
$0.049
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. 183-5528
Mfr. Part No.RSB27UM2TL
BrandROHM
$0.171
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. 183-5199
Mfr. Part No.VS3V3BB1EST15R
BrandROHM
$0.053
Each (On a Reel of 15000)
units
Single Bi-Directional 8.2V 4V Surface Mount DSN0603 3.3V 2 100mW 5.5A Yes 1 -55 °C 150 °C
RS Stock No. 146-9437
Mfr. Part No.MMBZ15VALT116
BrandROHM
$0.054
Each (On a Reel of 3000)
units
Common Anode Uni-Directional 21V 14.25V Surface Mount SOT-23 12V 3 40W 1.9A Yes 2 - +150 °C
RS Stock No. 183-5203
Mfr. Part No.VS5V0BL1HST15R
BrandROHM
$0.079
Each (On a Reel of 15000)
units
Single Bi-Directional 18V 6V Surface Mount DSN0603 5V 2 100mW 2A Yes 1 -55 °C 150 °C
RS Stock No. 148-6817
Mfr. Part No.MMBZ30VALT116
BrandROHM
$0.076
Each (In a Pack of 200)
units
Common Anode Uni-Directional 43V 28.5V Surface Mount SOT-23 24V 3 40W 0.95A Yes 2 - +150 °C
RS Stock No. 178-5693
Mfr. Part No.EDZCVT2R6.8B
BrandROHM
$0.037
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. 183-5185
Mfr. Part No.RSBC6.8CMT2N
BrandROHM
$0.132
Each (On a Reel of 8000)
units
Single Bi-Directional - 6.62V Surface Mount SOD-923 5V 2 100mW - Yes 1 - 150 °C
RS Stock No. 146-9442
Mfr. Part No.MMBZ24VALT116
BrandROHM
$0.054
Each (On a Reel of 3000)
units
Common Anode Uni-Directional 32V 22.8V Surface Mount SOT-23 20V 3 40W 1.25A Yes 2 - +150 °C
RS Stock No. 183-5639
Mfr. Part No.UMZ16NUMTL
BrandROHM
$0.171
Each (In a Pack of 100)
units
- Uni-Directional - 15.85V Surface Mount SOT-323FL 13V 3 200mW - Yes 2 - 150 °C
RS Stock No. 183-5192
Mfr. Part No.UMZ30NUMTL
BrandROHM
$0.118
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. 183-5619
Mfr. Part No.VS3V3BB1EST15R
BrandROHM
$0.092
Each (In a Pack of 150)
units
Single Bi-Directional 8.2V 4V Surface Mount DSN0603 3.3V 2 100mW 5.5A Yes 1 -55 °C 150 °C
RS Stock No. 826-7888
Mfr. Part No.RSB27F2T106
BrandROHM
$0.593
Each (In a Pack of 50)
units
Series - - - Surface Mount UMD - 3 - - - 2 - +150 °C