1N5246BUR-1

Single Zener Diodes Overview

The Microchip Technology 1N5246BUR-1 is a surface mount Zener voltage regulator housed in a DO-213AA (MELF) package. It provides a nominal Zener voltage of 16 V with a tolerance of ±5%. The device operates at a test current of 7.8 mA and features a maximum reverse leakage current of 0.1 µA. It dissipates up to 0.5 W of power, with a dynamic impedance of 17 Ohms at the test current. The unit supports an operating temperature range from -65°C to +175°C.

Single Zener Diodes Feature Summary

• Hermetically sealed metallurgically bonded glass surface mount construction
• Non-sensitive to electrostatic discharge per MIL-STD-750 method 1020
• Inherently radiation hard design
• Minimal capacitance characteristics

Single Zener Diodes Applications

• Voltage regulation over broad operating current and temperature ranges
• High-reliability electronic circuits requiring hermetic sealing
• Radiation-hardened system designs

Single Zener Diodes Procurement Notes

Verify the specific suffix requirements for your application, as the datasheet indicates that different suffix letters denote varying voltage tolerances such as 1%, 2%, or 10%. Confirm RoHS compliance status if required, noting that commercial versions may differ from screened military equivalents. Ensure the ordering part number matches the desired tolerance level and packaging configuration before finalizing procurement.

Single Zener Diodes Selection Notes

Select this component when a hermetically sealed surface mount Zener diode is required for high-reliability applications. The 1N5246BUR-1 offers a 16 V regulation point with tight tolerance options. Consider the low capacitance and radiation hardness for sensitive environments. Verify thermal derating curves against your specific ambient temperature and board layout conditions to ensure safe operation within the 0.5 W power dissipation limit.

Single Zener Diodes Part Context

This device belongs to the 1N5221BUR-1 through 1N5281BUR-1 series, which serves as a surface mount equivalent to the JEDEC registered 1N5221 to 1N5281 axial-leaded series. Manufactured by Microsemi (now Microchip Technology), these regulators utilize a metallurgically bonded glass package. The series covers a wide voltage range from 2.4 V to 200 V, providing designers with standardized surface mount alternatives for legacy through-hole designs.

Single Zener Diodes Replacement Considerations

Direct replacements include other parts within the 1N5221BUR-1 thru 1N5281BUR-1 series for different voltage ratings. For axial-leaded equivalents, consider the 1N5221B-1 thru 1N5281B-1 series. Verify package compatibility with DO-213AA dimensions when substituting.