1.5SMC13CA-E3/57T Circuit Protection

Voltage - Clamping (Max) @ Ipp:	18.2V
Supplier Device Package:	DO-214AB (SMCJ)
Package / Case:	DO-214AB, SMC
Mounting Type:	Surface Mount
Operating Temperature:	-65°C ~ 150°C (TJ)
Capacitance @ Frequency:	--
Applications:	General Purpose
Power Line Protection:	No
Power - Peak Pulse:	1500W (1.5kW)
Current - Peak Pulse (10/1000µs):	82.4A
Series:	1.5SMC, TransZorb®
Voltage - Breakdown (Min):	12.4V
Voltage - Reverse Standoff (Typ):	11.1V
Bidirectional Channels:	1
Type:	Zener
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Tape & Reel (TR)

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TVS - Diodes

Transient Voltage Suppression (TVS or TIS) diodes are a type of voltage protection device. They are designed to protect sensitive electronic components from overvoltage transients, which are short-term, high-amplitude voltage spikes caused by electrostatic discharges, inductive load switching, or lightning. The 1.5SMC13CA-E3/57T is a high-speed, low resistance transient voltage suppressor, typically used for protecting input ports such as USB ports on computers and tablets, from electrostatic discharges.

1.5SMC13CA-E3/57T Application Field

The 1.5SMC13CA-E3/57T is specifically designed for USB and other ports requiring ESD protection. Its small form factor and reduced leakage current makes it suitable for use in automotive, industrial, and consumer applications. It is also designed to meet the requirements of MIL-STD-883, ensuring reliable operation in various demanding environments.

1.5SMC13CA-E3/57T Working Principle

The 1.5SMC13CA-E3/57T operates based on the avalanche breakdown effect of reverse-biased PN-junction structures. In normal operation, the device behaves like a non-conducting diode with a very high reverse-biased voltage. When an overvoltage transient is present, however, the electric field intensity at the PN-junction increases, causing electrons and holes to avalanche, resulting in current conduction and the device going into its conduction state. The resulting current is then diverted away from the sensitive electronic components downstream, thus protecting them from damage.

Design Considerations

When designing with the 1.5SMC13CA-E3/57T, a few factors should be taken into consideration. Firstly, the size and operating temperature range should be checked to ensure that the device is suitable for the required application. Secondly, the maximum-rated clamping voltage and the maximum surge current that the device can withstand should be checked to make sure that it will not be damaged by the expected transients. Last but not least, the thermal resistance should be taken into account when determining the temperature of the device during operation.

Conclusion

The 1.5SMC13CA-E3/57T is a high-speed, low resistance transient voltage suppressor designed for use in automotive, industrial, and consumer applications. It is optimized for protecting input ports, such as USB ports, and meets the requirements of MIL-STD-883, ensuring reliable operation in harsh conditions. To ensure proper performance, certain design considerations should be taken into account, including size, temperature range, clamping voltage, surge current, and thermal resistance.

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