1SMA5913BT3

Single Zener Diodes Overview

The onsemi 1SMA5913BT3G is a single-channel surface-mount Zener voltage regulator with a nominal breakdown voltage of 3.3 V and a tolerance of ±5%. It operates within a temperature range of -65°C to +150°C and features a maximum DC power dissipation of 1.5 W at 75°C case temperature, or 0.5 W at 25°C ambient temperature. The device has a maximum Zener impedance of 10 Ω at the test current of 113.6 mA, a reverse leakage current of 1.0 mA at 1.0 V, and a forward voltage of 1.2 V max at 200 mA. It is housed in an SMA (DO-214AC) package.

Single Zener Diodes Feature Summary

• ESD protection rated at Class 3 (>16 kV) per Human Body Model
• Flat handling surface designed for accurate placement
• Low profile package suitable for top side or bottom circuit board mounting

Single Zener Diodes Applications

• Voltage regulation in electronic circuits
• Replacement for MELF packages
• Automotive applications requiring AEC-Q101 qualification

Single Zener Diodes Procurement Notes

Verify the specific ordering suffix when purchasing. The 'G' suffix indicates Pb-Free status. The 'SZ' prefix denotes automotive-grade devices that are AEC-Q101 qualified and PPAP capable, requiring unique site and control change requirements. Ensure the correct variant matches the application's environmental and reliability standards.

Single Zener Diodes Selection Notes

Select this component for applications requiring a 3.3 V reference or clamp in a compact surface-mount form factor. Consider the thermal derating curves if operating above 25°C ambient temperature. Verify that the SMA package footprint aligns with the PCB design guidelines provided in the datasheet to ensure proper soldering and mechanical stability.

Single Zener Diodes Part Context

This part belongs to the 1SMA59xxBT3G series of 1.5 Watt Plastic Surface Mount Zener Diodes. The series covers a standard Zener breakdown voltage range from 3.3 V to 68 V. These diodes are designed as ideal replacements for MELF packages and offer low profile characteristics suitable for modern surface mount assembly processes.

Single Zener Diodes Replacement Considerations

The SZ1SMA5913BT3G is the automotive-grade equivalent of this component. It shares the same electrical specifications but includes AEC-Q101 qualification and PPAP capability. Use the SZ prefix version for applications requiring strict automotive quality control and unique site tracking.