LM-NP-1004L

Overview

The LM-NP-1004L is a line matching transformer manufactured by Bourns Inc. It features a 1:1 turns ratio and operates within a frequency range of 0.2 to 3.5 kHz. The component has a DC resistance of 66 Ohms and an insertion loss of 1.5 dB. It utilizes a PC pin lead/base style for mounting. The device is designed for telecom applications, with an operating temperature range from -10°C to 60°C. Physical dimensions are approximately 17.7mm in length and 17mm in width.

Feature Summary

• Provides balanced-to-balanced signal transmission via a 1:1 turns ratio
• Designed for low insertion loss in audio frequency ranges
• Utilizes through-hole PC pin mounting for secure board attachment

Applications

• Telecom signal processing circuits
• Audio line matching interfaces
• Balanced signal transmission systems

Procurement Notes

Verify the specific suffix 'L' against the manufacturer's current datasheet to confirm availability and exact specifications. Ensure the PC pin configuration matches the target PCB footprint. Confirm that the operating temperature range meets the environmental requirements of the intended application. Cross-reference the part number with authorized distributors to avoid counterfeit components.

Selection Notes

Select this component when a 1:1 impedance transformation is required for telecom or audio signals. Consider the 66 Ohm DC resistance and 1.5 dB insertion loss limits for signal integrity. Verify that the 0.2 to 3.5 kHz frequency range aligns with the system's operational bandwidth. Ensure the physical dimensions fit the available space on the circuit board.

Part Context

This transformer belongs to the LM-NP series of line matching transformers from Bourns. These components are typically used to interface between balanced lines in telecommunications and audio equipment. The series offers various configurations for different impedance matching needs. The LM-NP-1004L specifically targets applications requiring a direct 1:1 ratio with standard through-hole mounting.

Replacement Considerations

Check for equivalent parts within the LM-NP series or other Bourns telecom transformers. Verify that any substitute matches the 1:1 turns ratio, 66 Ohm DC resistance, and similar frequency response. Ensure the replacement supports the same PC pin mounting style and physical dimensions.