1N5307UR-1

Overview

The Microchip Technology 1N5307UR-1 is a current regulator diode housed in the DO-213AB (MELF, LL41) surface-mount package. It provides a nominal regulating current of 2.40 mA with standard tolerances ranging from 2.16 mA to 2.64 mA at a voltage of 25 V. The device supports a maximum working peak voltage of 100 V and dissipates up to 500 mW of power. It operates within a junction temperature range of -65 °C to +150 °C.

Feature Summary

• JEDEC registered surface mount equivalent of the 1N5283 through 1N5314 series
• Leadless package designed for surface mount applications
• High source impedance characteristics
• Internal metallurgical bond construction

Applications

• Current regulation over broad operating voltage ranges
• Temperature-compensated reference circuits
• Biasing elements for active components

Procurement Notes

Verify that the specific ordering suffix matches the required qualification level, such as commercial or military grades like JAN, JANTX, JANTXV, or JANS per MIL-PRF-19500/463. Confirm RoHS compliance status if environmental restrictions apply, noting that lead-free versions are available only for commercial grade devices.

Selection Notes

Select this component when a constant current source is needed across a wide voltage span rather than a fixed voltage drop. Ensure the circuit design accommodates the specified knee voltage and limiting voltage parameters. Verify thermal management capabilities against the 500 mW dissipation limit and derating requirements above 125 °C.

Part Context

This part belongs to the 1N5283UR-1 through 1N5314UR-1 family of 0.5 watt current regulators. These devices function as counterparts to Zener diodes by regulating current over a broad voltage range instead of voltage over a broad current range. The series offers an extensive selection of currents from 0.22 mA to 10.0 mA.

Replacement Considerations

Direct equivalents include other manufacturers' MELF-style current regulator diodes with matching 2.4 mA nominal current ratings. For axial-leaded replacements, consider the 1N5307-1 variant. Verify package compatibility and electrical parameter alignment before substitution.