1025R-78G

Fixed Inductors Overview

The Delevan 1025R-78G is a fixed, unshielded molded RF inductor designed for through-hole axial mounting. It features an iron core and provides an inductance of 33 µH with a tolerance of ±2%. The component has a maximum DC resistance of 4.5 Ohms and supports a maximum current of 160 mA. It exhibits a minimum Q factor of 40 at 10 MHz and achieves a self-resonant frequency of 100 MHz. The unit operates within a temperature range of -55°C to +105°C.

Fixed Inductors Feature Summary

• Molded construction with an iron core for stable RF performance
• Unshielded design suitable for general-purpose applications
• Axial leaded package optimized for through-hole PCB mounting

Fixed Inductors Applications

• RF signal processing circuits
• Filter networks in communication equipment
• Impedance matching stages in radio frequency systems

Fixed Inductors Procurement Notes

Verify the specific suffix 'G' against official API Delevan documentation to confirm exact electrical tolerances and RoHS status. Ensure that the required current rating and self-resonant frequency align with the target circuit design before procurement. Confirm availability through authorized channels as standard lead times may vary.

Fixed Inductors Selection Notes

Select this component when a 33 µH inductance value is required with a tight ±2% tolerance. The 160 mA current rating and 4.5 Ohm DCR must be evaluated against the circuit's power dissipation requirements. Consider the unshielded nature of the coil regarding potential electromagnetic interference in dense layouts.

Fixed Inductors Part Context

This part belongs to the 1025R series of fixed RF coils manufactured by API Delevan. The series utilizes molded technology with iron cores to provide consistent inductance values for radio frequency applications. The 1025R-78G represents a specific variant within this family defined by its unique inductance and resistance characteristics.

Fixed Inductors Replacement Considerations

Cross-reference with other 1025R series variants such as 1025R-66G or 1025R-96G only if their specific electrical parameters match the circuit requirements. Verify physical dimensions and lead spacing compatibility before substituting.