LTC450BW

Overview

The LTC450BW is a ceramic filter manufactured by Transko Electronics, Inc., designed for AM radio applications. It features a center frequency of 450 kHz and a bandwidth of 4 kHz. The component has an impedance of 1.5 kOhm and utilizes a 4-SMD, J-Lead package. Insertion loss is specified at 4 dB. This surface-mount device is part of the LTC450-W series and is supplied in tape and reel packaging.

Feature Summary

• Designed specifically for AM broadcast band filtering applications
• Utilizes a compact 4-SMD J-Lead surface mount package
• Provides precise 450 kHz center frequency selection
• Offers defined 4 kHz bandwidth for signal isolation

Applications

• AM radio receiver intermediate frequency stages
• Consumer audio equipment signal processing
• Broadcast reception circuitry

Procurement Notes

Verify the specific package variant matches the 4-SMD J-Lead configuration required for your PCB layout. Confirm that the 1.5 kOhm impedance rating aligns with your circuit design specifications. Ensure the supplier provides documentation confirming the 450 kHz center frequency and 4 kHz bandwidth parameters. Check for RoHS compliance status if required by your manufacturing standards. Validate the tape and reel packaging format against your automated assembly equipment capabilities.

Selection Notes

Select this component when a 450 kHz center frequency is required for AM applications. Consider the 1.5 kOhm impedance and 4 kHz bandwidth to ensure compatibility with existing circuit designs. Evaluate the 4-SMD J-Lead package size for space constraints. Compare insertion loss characteristics against alternative filters to meet signal integrity requirements. Verify operating temperature ranges if used in extreme environments.

Part Context

Transko Electronics produces the LTC450BW as part of its ceramic filter portfolio. This component belongs to the LTC450-W series, which includes various frequencies and bandwidths for AM radio use. Similar parts include the LTC450GW, which offers a 3 kHz bandwidth and 2 kOhm impedance. These filters are commonly used in consumer electronics requiring reliable AM signal processing.

Replacement Considerations

The LTC450GW is a documented substitute offering similar functionality with a 3 kHz bandwidth and 2 kOhm impedance. Verify pin compatibility and electrical parameter differences before substitution.