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庫存編號 168-1433
製造零件編號EMZ6.8ET2R
BrandROHM
TWD4.20
/個 (每包:100個)
單位
Common Anode Uni-Directional - - Surface Mount EMD, SC-75A 3.5V 5 - - - 4 - +150 °C
RS庫存編號 146-9436
製造零件編號MMBZ12VALT116
BrandROHM
TWD1.00
個 (在毎卷:3000)
單位
Common Anode Uni-Directional 17V 11.4V Surface Mount SOT-23 8.5V 3 40W 2.35A Yes 2 - +150 °C
RS庫存編號 183-5195
製造零件編號UMZ5.1NUMTL
BrandROHM
TWD2.90
個 (在毎卷:3000)
單位
- Uni-Directional - 4.84V Surface Mount SOT-323FL 3.5V 3 200mW - Yes 2 - 150 °C
RS庫存編號 148-5774
製造零件編號RSB33F2T106
BrandROHM
TWD3.80
/個 (每包:100個)
單位
Single Bi-Directional - - Surface Mount SOT-323 25V 3 - - Yes 2 - +150 °C
RS庫存編號 183-5200
製造零件編號VS5V0BB1EST15R
BrandROHM
TWD1.10
個 (在毎卷:15000)
單位
Single Bi-Directional 11.4V 6V Surface Mount DSN0603 5V 2 100mW 2.2A Yes 1 -55 °C 150 °C
RS庫存編號 183-5196
製造零件編號UMZ6.8NUMTL
BrandROHM
TWD2.90
個 (在毎卷:3000)
單位
- Uni-Directional - 6.47V Surface Mount SOT-323FL 5V 3 200mW - Yes 2 - 150 °C
RS庫存編號 183-5593
製造零件編號STZU6.2NT146
BrandROHM
TWD4.20
/個 (每包:60個)
單位
- Uni-Directional - 5.9V Surface Mount SOT-346 5.5V 3 200mW - Yes 2 - 150 °C
RS庫存編號 146-9437
製造零件編號MMBZ15VALT116
BrandROHM
TWD1.20
個 (在毎卷:3000)
單位
Common Anode Uni-Directional 21V 14.25V Surface Mount SOT-23 12V 3 40W 1.9A Yes 2 - +150 °C
RS庫存編號 146-9442
製造零件編號MMBZ24VALT116
BrandROHM
TWD1.20
個 (在毎卷:3000)
單位
Common Anode Uni-Directional 32V 22.8V Surface Mount SOT-23 20V 3 40W 1.25A Yes 2 - +150 °C
RS庫存編號 169-0463
製造零件編號RSB6.8GT2R
BrandROHM
TWD3.50
個 (在毎卷:8000)
單位
Single - - - Surface Mount VMD - 2 - - - 1 -55 °C +150 °C
RS庫存編號 146-9448
製造零件編號MMBZ6V2ALT116
BrandROHM
TWD1.20
個 (在毎卷:3000)
單位
Common Anode Uni-Directional 8.7V 5.89V Surface Mount SOT-23 3V 3 24W 2.76A Yes 2 - +150 °C
RS庫存編號 183-5202
製造零件編號VS5V0BC1EST15R
BrandROHM
TWD1.10
個 (在毎卷:15000)
單位
Single Bi-Directional 12V 6V Surface Mount DSN0603 5V 2 100mW 5A Yes 1 -55 °C 150 °C
RS庫存編號 183-5702
製造零件編號RSAC6.8CMT2R
BrandROHM
TWD2.80
/個 (每包:100個)
單位
Single Bi-Directional - 6.7V Surface Mount SOD-923 5V 2 100mW - - 1 - 150 °C
RS庫存編號 146-9441
製造零件編號MMBZ20VALT116
BrandROHM
TWD1.20
個 (在毎卷:3000)
單位
Common Anode Uni-Directional 28V 19V Surface Mount SOT-23 17V 3 40W 1.4A Yes 2 - +150 °C
RS庫存編號 146-9443
製造零件編號MMBZ27VALT116
BrandROHM
TWD1.20
個 (在毎卷:3000)
單位
Common Anode Uni-Directional 40V 25.65V Surface Mount SOT-23 22V 3 40W 1A Yes 2 - +150 °C
RS庫存編號 168-0459
製造零件編號RSA30LTE25
BrandROHM
TWD85.10
個 (在毎卷:1500)
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Single Uni-Directional 41.4V 28.5V Surface Mount PMDS, SOD-106 25.6V 2 600W 14.4A Yes 1 - +150 °C
RS庫存編號 183-5197
製造零件編號UMZ8.2NUMTL
BrandROHM
TWD2.90
個 (在毎卷:3000)
單位
- Uni-Directional - 7.76V Surface Mount SOT-323FL 5V 3 200mW - Yes 2 - 150 °C
RS庫存編號 183-5183
製造零件編號RSB27UM2TL
BrandROHM
TWD2.60
個 (在毎卷:3000)
單位
- Bi-Directional - 26.2V Surface Mount SOT-323FL 24V 3 200mW - Yes 2 - 150 °C
RS庫存編號 169-0461
製造零件編號RSA6.1ENTR
BrandROHM
TWD3.90
個 (在毎卷:3000)
單位
Common Anode - - - Surface Mount UMD - 5 - - - 4 -55 °C +150 °C
RS庫存編號 146-9439
製造零件編號MMBZ16VALT116
BrandROHM
TWD1.20
個 (在毎卷:3000)
單位
Common Anode Uni-Directional 23V 15.2V Surface Mount SOT-23 13V 3 40W 1.7A Yes 2 - +150 °C