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. 878-3823
Mfr. Part No.SP721APP
BrandLittelfuse
R 29.53
Each (In a Pack of 10)
units
Complex Array Bi-Directional - - 2A Through Hole PDIP - 20nA 8 - Yes 6 -40 °C
RS stock no. 767-3728
Mfr. Part No.CDSOT23-SM712
BrandBourns
R 16.035
Each (In a Pack of 10)
units
Series Bi-Directional 26V 7.5V 17A Surface Mount SOT-23 12V 20µA 3 400W Yes 2 -55 °C
RS stock no. 165-3019
Mfr. Part No.CDSOT23-SM712
BrandBourns
R 9.688
Each (On a Reel of 3000)
units
Series Bi-Directional 26V 7.5V 17A Surface Mount SOT-23 12V 20µA 3 400W Yes 2 -55 °C
RS stock no. 920-6266
Mfr. Part No.USBLC6-2SC6
R 2.23
Each (On a Reel of 3000)
units
Complex Array Uni-Directional 17V 6V 5A Surface Mount SOT-23 5V 150nA 6 - Yes 2 -40 °C
RS stock no. 146-0603
Mfr. Part No.SM712.TCT
BrandSemtech
R 11.02
Each (On a Reel of 3000)
units
Series Bi-Directional 26V 13.3V 17A Surface Mount SOT-23 12V 20µA 3 400W Yes 2 -55 °C
RS stock no. 691-0811
Mfr. Part No.SM712.TCT
BrandSemtech
R 23.624
Each (In a Pack of 5)
units
Series Bi-Directional 26V 13.3V 17A Surface Mount SOT-23 12V 20µA 3 400W Yes 2 -55 °C
RS stock no. 624-7693
Mfr. Part No.USBLC6-2SC6
R 6.64
Each (In a Pack of 10)
units
Complex Array Uni-Directional 17V 6V 5A Surface Mount SOT-23 5V 150nA 6 - Yes 2 -40 °C
RS stock no. 699-8013
Mfr. Part No.SM8S36AHE3_A/I
BrandVishay
R 73.87
Each
units
Single Uni-Directional 58.1V 40V 114A Surface Mount DO-218AB 36V 10µA 2 6600W Yes 1 -55 °C
RS stock no. 169-6093
Mfr. Part No.SM8S36AHE3/2D
BrandVishay
R 36.90
Each (On a Reel of 750)
units
Single Uni-Directional 58.1V 40V 114A Surface Mount DO-218AB 36V 10µA 2 6600W Yes 1 -55 °C
RS stock no. 543-8696
Mfr. Part No.P6KE51A
R 5.082
Each (In a Pack of 5)
units
Single Uni-Directional 70.1V 48.5V 8.6A Through Hole DO-15 43.6V 5µA 2 600W - 1 -65 °C
RS stock no. 146-0992
Mfr. Part No.DS9503P+
R 8.568
Each (In a Tube of 120)
units
Single - - - - Surface Mount TSOC - - 6 - - 1 -40 °C
RS stock no. 166-2575
Mfr. Part No.P6KE51A
R 2.323
Each (On a Reel of 4000)
units
Single Uni-Directional 70.1V 48.5V 8.6A Through Hole DO-15 43.6V 5µA 2 600W - 1 -65 °C
RS stock no. 540-2906
Mfr. Part No.DS9503P+
R 12.25
Each
units
Single - - - - Surface Mount TSOC - - 6 - - 1 -40 °C
RS stock no. 103-1074
Mfr. Part No.USB6B1RL
R 8.371
Each (On a Reel of 2500)
units
Complex Array Bi-Directional - 6V 40A Surface Mount SOIC 5.2V 10µA 8 500W Yes 2 -40 °C
RS stock no. 631-1025
Mfr. Part No.SMBJ36A-E3/52
BrandVishay
R 4.208
Each (In a Pack of 20)
units
Single Uni-Directional 58.1V 40V 10.3A Surface Mount DO-214AA (SMB) 36V 1µA 2 600W - 1 -55 °C
RS stock no. 918-9294
Mfr. Part No.SMBJ36A-E3/52
BrandVishay
R 2.255
Each (On a Reel of 750)
units
Single Uni-Directional 58.1V 40V 10.3A Surface Mount DO-214AA (SMB) 36V 1µA 2 600W - 1 -55 °C
RS stock no. 250-735
Mfr. Part No.USB6B1RL
R 20.146
Each (In a Pack of 5)
units
Complex Array Bi-Directional - 6V 40A Surface Mount SOIC 5.2V 10µA 8 500W Yes 2 -40 °C
RS stock no. 146-0652
Mfr. Part No.SMAJ28A
BrandBourns
R 1.122
Each (On a Reel of 5000)
units
Single Uni-Directional 28V 31.1V 35A Surface Mount DO-214AC (SMA) 28V 5µA 2 400W Yes 1 -55 °C
RS stock no. 767-3731
Mfr. Part No.SMAJ28A
BrandBourns
R 3.907
Each (In a Pack of 50)
units
Single Uni-Directional 28V 31.1V 35A Surface Mount DO-214AC (SMA) 28V 5µA 2 400W Yes 1 -55 °C
RS stock no. 725-8720
Mfr. Part No.PRTR5V0U2X,215
BrandNexperia
R 6.38
Each (In a Pack of 20)
units
Complex Array Uni-Directional - 6V - Surface Mount SOT-143B 5.5V 100µA 4 - Yes 2 -40 °C