1537R-74F

Overview

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

Feature Summary

• Molded construction with iron core for structural integrity
• Axial leaded design suitable for through-hole PCB mounting
• Unshielded configuration for specific electromagnetic compatibility requirements

Applications

• RF circuit filtering applications
• General-purpose signal processing circuits
• Industrial control system components

Procurement Notes

Verify RoHS compliance status as sources indicate lead-free variants exist. Confirm exact tolerance (±2%) matches design requirements against similar ±5% parts. Check datasheet for MIL-PRF-39010 certification if military grade is required. Ensure axial lead spacing fits target PCB layout constraints.

Selection Notes

Select this part when a 91 µH inductance with low DC resistance is needed. Compare rated current of 154 mA against circuit load. Consider the unshielded nature for placement away from sensitive components. Verify operating temperature range meets environmental conditions.

Part Context

Part of the 1537 series fixed inductors. Similar to ER1537-74JP but with different tolerance and current ratings. Used in electronic assemblies requiring stable inductance values.

Replacement Considerations

ER1537-74JP offers similar inductance but differs in tolerance (±5%) and current rating (136 mA). 1537R-74G provides tighter tolerance (±2%) but may have different availability.