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 Maximum Peak Pulse Current Mounting Type Package Type Maximum Reverse Stand-off Voltage Maximum Reverse Leakage Current Pin Count Peak Pulse Power Dissipation ESD Protection Number of Elements per Chip Minimum Operating Temperature
RS stock no. 170-9046
Mfr. Part No.DT1446-04TS-7
R 1.445
Each (On a Reel of 3000)
units
Array Uni-Directional 8.5V 6V 4.7A Surface Mount TSOT-26 5V 5µA 6 0.3W Yes 10 -55 °C
RS stock no. 921-1199
Mfr. Part No.DT1446-04TS-7
R 1.441
Each (In a Pack of 50)
units
Array Uni-Directional 8.5V 6V 4.7A Surface Mount TSOT-26 5V 5µA 6 0.3W Yes 10 -55 °C
RS stock no. 122-1457
Mfr. Part No.D5V0L1B2WS-7
R 0.655
Each (On a Reel of 3000)
units
Array Bi-Directional 14V 6V 6A Surface Mount SOD-323 5V 100nA 2 84W Yes 1 -65 °C
RS stock no. 770-4774
Mfr. Part No.D5V0L1B2WS-7
R 1.209
Each (On a Tape of 100)
units
Array Bi-Directional 14V 6V 6A Surface Mount SOD-323 5V 100nA 2 84W Yes 1 -65 °C
RS stock no. 712-2747
Mfr. Part No.MMBZ15VAL-7-F
R 3.185
Each (In a Pack of 50)
units
Common Anode Uni-Directional 21V 14.25V 1.9A Surface Mount SOT-23 12V 50µA 3 40W Yes 2 -65 °C
RS stock no. 712-2750
Mfr. Part No.MMBZ9V1AL-7-F
R 0.62
Each (In a Pack of 50)
units
Dual Uni-Directional 14V 8.65V 1.7A Surface Mount SOT-23 6V 300nA 3 24W Yes 2 -65 °C
RS stock no. 885-5631
Mfr. Part No.SMBJ20A-13-F
R 0.851
Each (In a Pack of 50)
units
Single Uni-Directional 32.4V 22.2V 18.5A Surface Mount DO-214AA (SMB) 20V 5µA 2 600W - 1 -55 °C
RS stock no. 179-1162
Mfr. Part No.SMAJ5.0CA-13-F
R 1.236
Each (On a Reel of 5000)
units
Single Bi-Directional 9.2V 6.4V 43.5A Surface Mount DO-214AC (SMA) 5V 800µA 2 400W - 1 -55 °C
RS stock no. 165-8371
Mfr. Part No.D5V0L1B2S9-7
R 0.512
Each (On a Reel of 10000)
units
Single Bi-Directional 14V 6V 6A Surface Mount SOD-923 5V 100nA 2 84W Yes 2 -65 °C
RS stock no. 169-0747
Mfr. Part No.D1213A-01T-7
R 0.812
Each (On a Reel of 3000)
units
Single Uni-Directional 17V 6V 5A Surface Mount SOD-523 3.3V 1µA 2 - Yes 1 -65 °C
RS stock no. 122-0271
Mfr. Part No.P6KE7V5A-T
R 2.085
Each (On a Reel of 4000)
units
Single Uni-Directional 11.3V 7.13V 53A Through Hole DO-15 6.4V 500µA 2 600W - 1 -55 °C
RS stock no. 121-9639
Mfr. Part No.DT2636-04S-7
R 1.978
Each (On a Reel of 3000)
units
Complex Array Uni-Directional 9V 7V 6.5A Surface Mount SOT-363 (SC-88) 5.5V 10nA 6 60W Yes 4 -55 °C
RS stock no. 122-0665
Mfr. Part No.MMBZ5V6AL-7-F
R 0.874
Each (On a Reel of 3000)
units
Dual Uni-Directional 8V 5.89V 3A Surface Mount SOT-23 3V 5µA 3 24W Yes 2 -65 °C
RS stock no. 822-8556
Mfr. Part No.SMAJ24CA-13-F
R 4.126
Each (In a Pack of 25)
units
Single Bi-Directional 38.9V 26.7V 10.3A Surface Mount DO-214AC (SMA) 24V 5µA 2 400W - 1 -55 °C
RS stock no. 770-4816
Mfr. Part No.D1213A-01T-7
R 3.594
Each (In a Pack of 50)
units
Single Uni-Directional 17V 6V 5A Surface Mount SOD-523 3.3V 1µA 2 - Yes 1 -65 °C
RS stock no. 822-8580
Mfr. Part No.SMAJ5.0CA-13-F
R 4.124
Each (In a Pack of 25)
units
Single Bi-Directional 9.2V 6.4V 43.5A Surface Mount DO-214AC (SMA) 5V 800µA 2 400W - 1 -55 °C
RS stock no. 122-2905
Mfr. Part No.SMAJ6.0CA-13-F
R 2.347
Each (On a Reel of 5000)
units
Single Bi-Directional 10.3V 6.67V 38.8A Surface Mount SMA 6V 800µA 2 400W - 1 -55 °C
RS stock no. 179-1155
Mfr. Part No.SMAJ24CA-13-F
R 1.236
Each (On a Reel of 5000)
units
Single Bi-Directional 38.9V 26.7V 10.3A Surface Mount DO-214AC (SMA) 24V 5µA 2 400W - 1 -55 °C
RS stock no. 169-0742
Mfr. Part No.D5V0L2B3SO-7
R 0.929
Each (On a Reel of 3000)
units
Array Bi-Directional 14V 6V 6A Surface Mount SOT-23 5V 100nA 3 84W Yes 4 -65 °C
RS stock no. 827-0440
Mfr. Part No.DT2636-04S-7
R 4.917
Each (In a Pack of 50)
units
Complex Array Uni-Directional 9V 7V 6.5A Surface Mount SOT-363 (SC-88) 5.5V 10nA 6 60W Yes 4 -55 °C