1N4103UR/TR

Single Zener Diodes Overview

The Microchip Technology 1N4103UR/TR is a single silicon Zener diode designed for surface mount applications. It features a nominal Zener voltage of 9.1 V with a tolerance of ±5%. The device operates within a power dissipation rating of 500 mW and maintains a Zener impedance of 200 Ohms at a test current of 250 uA. It is housed in a DO-213AA (SMB) package, measuring 3.7 mm in length and 1.7 mm in diameter. The component supports an extended operating temperature range from -65°C to +175°C and includes a metallurgical bond construction.

Single Zener Diodes Feature Summary

• Surface mount configuration utilizing DO-213AA glass encapsulation
• Internal metallurgical bond construction for enhanced reliability
• Extended high-temperature operational capability up to 175°C
• Low reverse leakage characteristics suitable for precision regulation

Single Zener Diodes Applications

• Voltage reference circuits requiring stable DC levels
• Over-voltage protection stages in sensitive electronics
• Clamping applications in signal processing paths
• Power supply regulation modules

Single Zener Diodes Procurement Notes

Verify the specific suffix designation to confirm the presence of the internal metallurgical bond and ensure compatibility with RoHS requirements if applicable. Confirm that the reel packaging format aligns with automated assembly equipment specifications. Cross-reference the manufacturer's latest datasheet to validate electrical parameters against current production batches before finalizing procurement decisions.

Single Zener Diodes Selection Notes

Select this component when a robust surface mount Zener diode is required for high-temperature environments. The DO-213AA package offers a compact footprint suitable for dense PCB layouts. Ensure the 500 mW power rating meets the thermal dissipation needs of the target application. Consider the ±5% voltage tolerance for circuit design margins.

Single Zener Diodes Part Context

This part belongs to the 1N4103 series of Zener voltage regulators manufactured by Microchip Technology. It serves as the surface mount equivalent to axial-leaded counterparts, providing similar electrical performance in a compact form factor. The series is widely used in industrial and commercial electronics where space constraints and thermal stability are critical design factors.

Single Zener Diodes Replacement Considerations

Direct replacements include other 9.1V Zener diodes in the DO-213AA package with matching 500 mW ratings. Verify pinout compatibility and thermal resistance values. Alternative packages such as SOD-123 may require schematic redesign due to physical dimension differences.