1537R-72F

Overview

The Delevan 1537R-72F is a fixed axial leaded RF inductor belonging to the 1537R series. It features a molded unshielded coil construction with standard termination for PCB mounting. Key electrical specifications include an inductance of 82 µH, a tolerance of 1%, and a maximum DC resistance of 3.9 Ohms. The component supports a maximum DC current of 162 mA and exhibits a minimum Q factor of 45. The self-resonant frequency is specified at 60 MHz. Physical dimensions are 3.96 mm in diameter and 9.53 mm in length, with a unit weight of 600 mg.

Feature Summary

• Molded unshielded coil design suitable for RF applications
• Axial leaded termination style for through-hole PCB mounting
• High precision 1% inductance tolerance

Applications

• RF circuit filtering
• Impedance matching networks
• General purpose RF signal processing

Procurement Notes

Verify the specific ordering suffix against official API Delevan documentation to ensure correct packaging and tolerance specifications. Confirm RoHS compliance status as indicated in manufacturer records prior to procurement. Cross-reference the part number with authorized distributors to validate authenticity and supply chain integrity. Ensure application requirements align with the 162 mA current rating and 3.9 Ohm DC resistance limits.

Selection Notes

Select this component when high precision inductance is required for RF circuits. The unshielded design necessitates careful layout consideration to prevent magnetic interference with adjacent components. Verify that the operating current remains below the 162 mA maximum limit to avoid saturation or thermal issues. The axial form factor is suitable for manual assembly or wave soldering processes requiring through-hole technology.

Part Context

The 1537R series represents a line of molded RF inductors manufactured by API Delevan. These components are designed for robust performance in radio frequency environments. The 1537R-72F variant specifically targets applications requiring higher inductance values within the series. The series utilizes a consistent physical footprint across variants, facilitating standardized board layouts for different inductance requirements.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source data. Consult API Delevan technical support for direct equivalents. Generic replacements may differ significantly in Q factor, self-resonant frequency, and current handling capabilities. Verify mechanical compatibility and electrical parameters before substituting any other manufacturer's product.