#458PT-1720=P3

Overview

The #458PT-1720=P3 is a surface mount audio transformer manufactured by Murata Electronics. It features a primary impedance of 75 Ohms and a secondary impedance of 50 Ohms, providing a 2:5 turns ratio. The component utilizes a flat lead termination style with gull wing leads and operates within a temperature range of -40°C to +85°C. Physical dimensions are approximately 6.9mm length by 3.8mm width by 4.4mm height.

Feature Summary

• Surface mount construction for automated assembly
• Balanced-to-unbalanced signal conversion capability
• Compact physical footprint suitable for space-constrained designs

Applications

• Frequency mixer circuits
• Audio signal processing systems
• Telecommunications equipment interfaces

Procurement Notes

Verify the specific ordering suffix to ensure correct packaging configuration, such as cut tape or MouseReel options. Confirm that the component status reflects current availability, as this part number has been designated for discontinuation with a defined last time buy date. Ensure compatibility with existing PCB footprints before finalizing procurement orders.

Selection Notes

Select this component when a 75 Ohm to 50 Ohm impedance transformation is required in an audio or RF application. Consider the surface mount package type and operating temperature range relative to the target environment. Evaluate the physical dimensions against available board space constraints during the initial design phase.

Part Context

This transformer belongs to Murata's audio product lineup, specifically designed for frequency mixer applications. It serves as a passive component for signal balancing and impedance matching in communication devices. The series includes related models with varying impedances and ratios.

Replacement Considerations

The model #458PT-1619=P3 is listed as discontinued with a last time buy date of March 31, 2027. Designers should evaluate alternative components if long-term supply assurance is required beyond this date.