1537R-82H

Overview

The Delevan 1537R-82H is a fixed, unshielded molded RF inductor with axial leads. It features an inductance of 130 µH and a tolerance of ±3%. The maximum DC current rating is 137 mA, with a maximum DC resistance of 5.45 ohms. The component operates within a temperature range of -55°C to +105°C. Key electrical characteristics include a minimum Q factor of 65 at 790 kHz and a self-resonant frequency of 8.5 MHz. The physical dimensions are 3.96 mm in diameter by 9.53 mm in length.

Feature Summary

• Molded construction with iron core for established reliability
• Unshielded design suitable for specific RF circuit layouts
• Axial leaded package for through-hole PCB mounting

Applications

• RF signal processing circuits
• Impedance matching networks
• Filter applications in communication equipment

Procurement Notes

Verify the exact suffix designation against the manufacturer's current datasheet to ensure correct tolerance and current ratings. Confirm RoHS compliance status as historical data indicates non-compliance for some variants in this series. Check lead time availability directly with authorized distributors due to potential supply chain variations for specialized RF components.

Selection Notes

Select this component when a 130 µH inductance value is required with tight ±3% tolerance. Ensure the circuit design accommodates the 137 mA current limit and 5.45 ohm DC resistance. Verify that the axial form factor fits the target PCB layout and that the unshielded nature does not interfere with nearby sensitive components.

Part Context

This part belongs to the Delevan 1537/R series of RF inductors. These components are designed for high-reliability applications requiring stable inductance values. The series utilizes molded technology to provide consistent performance across varying environmental conditions.

Replacement Considerations

Cross-reference with ER1537-82JR for similar specifications. Verify that substitute parts match the 130 µH inductance, 137 mA current rating, and axial package dimensions to ensure mechanical and electrical compatibility.