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. 919-6548
Mfr. Part No.BZW50-27
HK$15.937
Each (In a Bag of 100)
units
Single Uni-Directional 62V 30V Through Hole R 6 27V 2 5000W 968A - 1 -65 °C +175 °C
RS Stock No. 146-0992
Mfr. Part No.DS9503P+
BrandMaxim
HK$5.06
Each (In a Tube of 120)
units
Single - - - Surface Mount TSOC - 6 - - - 1 -40 °C +85 °C
RS Stock No. 486-0626
Mfr. Part No.1.5KE250A
HK$3.461
Each (In a Pack of 10)
units
Single Uni-Directional 442V 237V Through Hole DO-201 213V 2 1500W 23A - 1 -65 °C +175 °C
RS Stock No. 773-4536
Mfr. Part No.CD143A-SR70
BrandBourns
HK$6.896
Each (In a Pack of 10)
units
Complex Array Uni-Directional 7V 85V Surface Mount SOT-143 70V 4 - 24A Yes 4 -55 °C +150 °C
RS Stock No. 714-7033
Mfr. Part No.BZW50-27
HK$23.695
Each (In a Pack of 2)
units
Single Uni-Directional 62V 30V Through Hole R 6 27V 2 5000W 968A - 1 -65 °C +175 °C
RS Stock No. 819-3680
Mfr. Part No.SMBJ130CA-E3/52
BrandVishay
HK$2.889
Each (In a Pack of 20)
units
Single Bi-Directional 209V 144V Surface Mount DO-214AA (SMB) 130V 2 600W 2.9A - 1 -55 °C +150 °C
RS Stock No. 828-9879
Mfr. Part No.ESDALC5-1BT2
HK$1.834
Each (In a Pack of 50)
units
Single Bi-Directional 17.5V 5.8V Surface Mount SOD-882T 5V 2 150W 9A Yes 1 -55 °C +150 °C
RS Stock No. 165-9463
Mfr. Part No.MAX3205EATE+
BrandMaxim
HK$15.812
Each (In a Tube of 100)
units
Dual Uni-Directional 30V - Surface Mount TQFN - 16 1.66W 45A Yes 2 -40 °C +125 °C
RS Stock No. 166-0089
Mfr. Part No.PTVS3V3S1UR,115
BrandNexperia
HK$1.03
Each (On a Reel of 3000)
units
Single Uni-Directional 8V 5.2V Surface Mount SOD-123W 3.3V 2 400W 43.8A - 1 -55 °C +150 °C
RS Stock No. 637-8337
Mfr. Part No.1.5KE15CA-E3/54
BrandVishay
HK$4.79
Each (In a Pack of 5)
units
Single Bi-Directional 21.2V 14.3V Through Hole 1.5KE 12.8V 2 1500W 70.8A - 1 -55 °C +175 °C
RS Stock No. 754-6216
Mfr. Part No.82400274
HK$7.66
Each (In a Pack of 5)
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. 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. 791-8964
Mfr. Part No.PRTR5V0U4D,125
BrandNexperia
HK$2.695
Each (In a Pack of 25)
units
Complex Array - - - Surface Mount SOT-457 (SC-74) - 6 - - Yes 4 - -
RS Stock No. 165-6965
Mfr. Part No.SA8.0A-E3/54
BrandVishay
HK$2.444
Each (On a Reel of 4000)
units
Single Uni-Directional 13.6V 8.89V Through Hole DO-204AC 8V 2 500W 36.8A - 1 -55 °C +175 °C
RS Stock No. 165-2445
Mfr. Part No.SA30A-E3/54
BrandVishay
HK$2.446
Each (On a Reel of 4000)
units
Single Uni-Directional 48.4V 33.3V Through Hole DO-204AC 30V 2 500W 10A Yes 1 -55 °C +175 °C
RS Stock No. 919-6374
Mfr. Part No.1.5KE200CA
HK$4.306
Each (In a Bag of 600)
units
Single Bi-Directional 353V 190V Through Hole DO-201 171V 2 1500W 28A - 1 -65 °C +175 °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. 710-4976
Mfr. Part No.SMAJ5.0A-E3/61
BrandVishay
HK$2.06
Each (In a Pack of 25)
units
Single Uni-Directional 9.2V 6.4V Surface Mount DO-214AC (SMA) 5V 2 400W 43.5A - 1 -55 °C +150 °C
RS Stock No. 249-050
Mfr. Part No.DALC208SC6
HK$3.50
Each (In a Pack of 10)
units
Complex Array - - - Surface Mount SOT-23 - 6 - - - 4 -55 °C +150 °C
RS Stock No. 773-4583
Mfr. Part No.LSP0600BJR-S
BrandBourns
HK$4.747
Each (In a Pack of 25)
units
Single Uni-Directional - - Surface Mount DO-214AC (SMA) 6V 2 - - No 1 -40 °C +150 °C
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