1540M18

Description：FIXED IND 1.1MH 2.5A 330 MOHM TH
Series：1540
Mfr：Hammond Manufacturing
Package：Bulk

SKU:850eb0d905ca Category: Fixed Inductors Brand: Hammond Manufacturing

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Product introduction

Product Detailed Parameters

Description：FIXED IND 1.1MH 2.5A 330 MOHM TH
Series：1540
Mfr：Hammond Manufacturing
Package：Bulk
Type：Toroidal
Material - Core：-
Inductance：1.1 mH
Tolerance：±15%
Current Rating (Amps)：2.5 A
Current - Saturation (Isat)：-
Shielding：Unshielded
DC Resistance (DCR)：330mOhm Max
Q @ Freq：-
Frequency - Self Resonant：-
Ratings：-
Operating Temperature：-
Inductance Frequency - Test：-
Mounting Type：Through Hole
Package / Case：Radial, Vertical (Open)
Supplier Device Package：-
Size / Dimension：1.812" Dia x 0.750" W (46.02mm x 19.05mm)
Height - Seated (Max)：-
Features：-

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1540M18

Overview

The Hammond Manufacturing 1540M18 is a fixed toroidal inductor from the 1540 series, designed for industrial applications. It features an unshielded construction with radial vertical open leads. The component has an inductance of 1.1 mH and a maximum DC resistance of 330 milliohms. It supports a current rating of 2.5 amperes. The unit utilizes wire lead termination for chassis or panel mounting integration.

Feature Summary

Unshielded toroidal core design for high-current handling
Radial vertical open lead configuration for easy mounting
Suitable for EMI/RFI filtering and energy storage tasks

Applications

EMI and RFI filtering circuits
Energy storage inductors for switching power supplies
DC link chokes in industrial automation systems

Procurement Notes

Verify the specific inductance value and current rating against the official Hammond Manufacturing datasheet before procurement. Confirm that the unshielded nature of the component meets the electromagnetic interference requirements of the target application environment. Ensure the radial lead spacing is compatible with the printed circuit board layout or chassis mounting holes to prevent mechanical stress during assembly.

Selection Notes

Select this component when a robust, high-current toroidal inductor is required for power supply filtering or energy storage. The unshielded design allows for flexible placement but requires consideration of magnetic field interaction with nearby components. Verify that the 2.5 A current rating aligns with the peak and RMS currents of the intended circuit to ensure reliable operation under thermal load conditions.

Part Context

The 1540M18 belongs to the Hammond 1540 series of fixed inductors, which are engineered for industrial control and power conversion environments. This series emphasizes durability and high current capacity using toroidal geometry to minimize external magnetic leakage compared to other core shapes. The component serves as a passive element in power electronics, providing stability in DC-DC converters and AC-DC power supplies.