1537R-74G

Overview

The Delevan 1537R-74G is a fixed molded axial leaded inductor with an inductance of 91 µH and a tolerance of ±2%. It features an iron core and operates within a temperature range of -55°C to 105°C. The component has a maximum DC resistance of 4.3 ohms and a rated current of 154 mA. Key electrical characteristics include a Q value of 50 at 2.5 MHz and a self-resonant frequency of 10 MHz. The physical dimensions are 0.156 inches in diameter by 0.375 inches in length.

Feature Summary

• Molded construction for mechanical stability
• Axial leaded package for through-hole mounting
• Iron core design for specific inductive properties

Applications

• General purpose RF circuits
• Signal filtering applications
• Power supply chokes

Procurement Notes

Verify RoHS compliance status, as the source indicates this specific part may not be RoHS compliant. Confirm the manufacturer designation, noting that API Delevan is also listed as the producer. Ensure the ordering suffix matches the required packaging format, such as tape and reel quantities, before finalizing procurement orders.

Selection Notes

Select this component when a 91 µH inductance with low DC resistance is required for axial mounting. Consider the 154 mA current rating and 4.3 ohm DCR limits for circuit compatibility. The unshielded design requires layout consideration for magnetic interference. Verify thermal requirements against the -55°C to 105°C operating range.

Part Context

This part belongs to the 1537 series of fixed inductors manufactured by Delevan (API Delevan). The series includes various inductance values and tolerances. The 1537R-74G specifically denotes the 91 µH variant with a G suffix, likely indicating a specific tolerance or packaging configuration within the product line.

Replacement Considerations

Direct substitutes include other 91 µH axial inductors from different manufacturers if pinout and electrical parameters match. Cross-reference with the 1537-74G part number, which shares identical specifications. Verify that any replacement meets the same current and temperature ratings.