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The Microchip Technology 2N5931 is a Zener diode designed for voltage regulation applications. It features a nominal Zener voltage of 18 V with a tolerance of ±2%. The device supports a maximum power dissipation of 1.25 W and operates within a temperature range of -65°C to +175°C junction temperature. It utilizes a DO-204AL (DO-41) axial through-hole package. Key electrical characteristics include a maximum reverse leakage current of 1 µA at 13.7 V, a forward voltage of 1.2 V at 200 mA, and a maximum Zener impedance of 12 Ohms.
Verify the specific suffix designation against official Microchip documentation to ensure correct tolerance and packaging specifications. Confirm RoHS compliance status as historical data indicates non-compliance for certain variants. Validate that the DO-204AL package matches your board layout requirements before finalizing procurement orders.
Select this component when an 18 V regulation point is required with tight ±2% tolerance. Ensure the circuit design accommodates the 1.25 W power rating and the specified thermal limits. Verify compatibility with the DO-204AL footprint and confirm that the operating environment falls within the -65°C to +175°C junction temperature range.
This part belongs to the 1N5931 series of Zener diodes manufactured by Microchip Technology. The series offers various voltage options within a standardized axial package format. These components are widely utilized in industrial and commercial electronics where reliable voltage clamping and reference generation are critical for system stability.
The 1N5931D is documented as a parameter-equivalent substitute from Microchip Technology. Verify pinout compatibility and thermal performance when substituting.