1025R-12H

Fixed Inductors Overview

The Delevan 1025R-12H is a fixed, unshielded molded RF inductor designed for through-hole mounting. It features an axial lead configuration with a nominal inductance of 0.47 µH and a tight tolerance of ±3%. The component supports a maximum DC current of 660 mA while maintaining a maximum DC resistance of 350 mΩ. It exhibits a minimum Q factor of 30 and achieves a self-resonant frequency of 330 MHz. The unit operates within a temperature range of -55°C to 105°C and measures 2.41 mm in diameter by 6.35 mm in length.

Fixed Inductors Feature Summary

• Molded construction provides mechanical stability for unshielded RF applications
• Axial lead termination facilitates standard through-hole PCB integration
• Iron core material ensures stable inductance characteristics across operating temperatures

Fixed Inductors Applications

• RF circuit filtering and impedance matching
• High-frequency signal processing networks
• Military and aerospace electronic systems requiring MIL-PRF-M15305 compliance

Fixed Inductors Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm tolerance and packaging variations. Ensure that the selected variant meets the required military reliability standards if applicable. Cross-reference the DigiKey part number DN7689-ND for accurate distributor identification and datasheet access. Confirm RoHS status and environmental compliance requirements prior to final procurement decisions.

Fixed Inductors Selection Notes

Select this component when a low-inductance value near 0.47 µH is required with high precision. The ±3% tolerance makes it suitable for critical RF tuning applications where standard tolerances are insufficient. Consider the 660 mA current rating for power handling needs and verify that the 330 MHz self-resonant frequency aligns with the target operational bandwidth. The axial package is ideal for manual assembly or wave soldering processes.

Fixed Inductors Part Context

This inductor belongs to the 1025R series, which adheres to the MIL-PRF-M15305 specification. The series is characterized by molded iron core construction and axial leads. It serves as a specialized passive component for high-reliability environments, distinguishing itself from general-purpose commercial inductors through its strict manufacturing controls and defined performance metrics.

Fixed Inductors Replacement Considerations

Direct substitutes include other parts within the 1025R series that match the 0.47 µH inductance and 3% tolerance. Verify physical dimensions and pinout compatibility before substitution. Alternative manufacturers may offer similar specifications but require validation against the original MIL-PRF-M15305 standards.