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. 145-4207
Mfr. Part No.MMQA12VT1G
HK$0.574
Each (On a Reel of 3000)
units
Common Anode Uni-Directional 17.3V 11.4V Surface Mount SC-74 9.1V 6 150W - Yes 4 -55 °C +150 °C
RS Stock No. 145-5561
Mfr. Part No.SMCJ18CA
HK$1.843
Each (On a Reel of 3000)
units
Single Bi-Directional 29.2V 20V Surface Mount DO-214AB (SMC) 18V 2 1500W 51.4A - 1 - +150 °C
RS Stock No. 917-2716
Mfr. Part No.EMIF06-MSD02N16
HK$9.33
Each (In a Pack of 10)
units
- - - - Surface Mount - - - - - - - -30 °C +85 °C
RS Stock No. 732-9169
Mfr. Part No.MAX3208EAUB+
HK$13.39
Each
units
Complex Array - - - - - - - - - - 4 - -
RS Stock No. 169-8520
Mfr. Part No.P6KE12CA
HK$1.559
Each (On a Reel of 4000)
units
Single Bi-Directional 16.7V 11.4V Through Hole DO-15 10.2V 2 600W 36A - 1 -65 °C +175 °C
RS Stock No. 805-2829
Mfr. Part No.MMQA12VT1G
HK$0.536
Each (In a Pack of 50)
units
Common Anode Uni-Directional 17.3V 11.4V Surface Mount SC-74 9.1V 6 150W - Yes 4 -55 °C +150 °C
RS Stock No. 168-6151
Mfr. Part No.P6KE33A
HK$1.01
Each (On a Tape of 1000)
units
Single Uni-Directional 59V 31.4V Through Hole DO-15 28.2V 2 600W 68A - 1 -65 °C +175 °C
RS Stock No. 165-6170
Mfr. Part No.5KP85A-E3/54
BrandVishay
HK$14.713
Each (On a Reel of 800)
units
Single Uni-Directional 137V 94.4V Through Hole P600 85V 2 5000W 36.5A - 1 -55 °C +175 °C
RS Stock No. 802-2474
Mfr. Part No.SMCJ18CA
HK$3.97
Each (In a Pack of 20)
units
Single Bi-Directional 29.2V 20V Surface Mount DO-214AB (SMC) 18V 2 1500W 51.4A - 1 - +150 °C
RS Stock No. 919-6535
Mfr. Part No.SMBJ5.0CA-TR
HK$0.847
Each (On a Reel of 2500)
units
Single Bi-Directional 13.4V 6.4V Surface Mount DO-214AA (SMB) 5V 2 600W 298A - 1 -55 °C +150 °C
RS Stock No. 146-0655
Mfr. Part No.CD143A-SR70
BrandBourns
HK$3.237
Each (On a Reel of 3000)
units
Complex Array Uni-Directional 7V 85V Surface Mount SOT-143 70V 4 - 24A Yes 4 -55 °C +150 °C
RS Stock No. 783-3548
Mfr. Part No.MAX3207EAUT+T
HK$10.678
Each (On a Tape of 5)
units
Array Uni-Directional 30V 0.95V Surface Mount SOT-23 - 6 0.69W 45A Yes 4 -40 °C +125 °C
RS Stock No. 134-9470
Mfr. Part No.B72500D0050A060
BrandEPCOS
HK$0.569
Each (On a Reel of 4000)
units
Single Bi-Directional 19V 6.4V Surface Mount SOD-523 5.6V 2 1000W 30A Yes 1 -40 °C +85 °C
RS Stock No. 751-5073
Mfr. Part No.SMBJ5.0A-13-F
HK$1.703
Each (In a Pack of 25)
units
Single Uni-Directional 9.2V 6.4V Surface Mount DO-214AA (SMB) 5V 2 600W 65.2A - 1 -55 °C +150 °C
RS Stock No. 250-050
Mfr. Part No.ESDA6V1-4BC6
HK$2.816
Each (In a Pack of 10)
units
Complex Array Bi-Directional - 6.1V Surface Mount SOT-23 3V 6 80W - Yes 4 -40 °C +125 °C
RS Stock No. 819-3719
Mfr. Part No.SMBJ60CA-E3/52
BrandVishay
HK$3.086
Each (In a Pack of 20)
units
Single Bi-Directional 96.8V 66.7V Surface Mount DO-214AA (SMB) 60V 2 600W 6.2A - 1 -55 °C +150 °C
RS Stock No. 110-7752
Mfr. Part No.ESD112B102ELE6327XTMA1
BrandInfineon
HK$1.60
Each (In a Pack of 100)
units
Single Bi-Directional 44V 7V Surface Mount TSLP - 2 - 3A Yes 1 -55 °C +125 °C
RS Stock No. 691-0792
Mfr. Part No.SM05.TCT
BrandSemtech
HK$4.096
Each (In a Pack of 10)
units
Common Anode Uni-Directional 9.8V 6V Surface Mount SOT-23 5V 3 300W 17A Yes 2 -55 °C +125 °C
RS Stock No. 162-3807
Mfr. Part No.82400274
HK$5.273
Each (On a Reel of 3000)
units
Complex Array Uni-Directional 9V 6V Surface Mount SOT-363 (SC-70) 5V 6 - 6A Yes 4 -55 °C +85 °C
RS Stock No. 166-1559
Mfr. Part No.PESD5V0L5UV,115
BrandNexperia
HK$0.96
Each (On a Reel of 4000)
units
Common Anode Uni-Directional 12V 6.4V Surface Mount SSMini 5V 6 25W 2.5A Yes 5 -65 °C +150 °C
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