3-9-1DL

Overview

The Bourns Inc. 3-9-1DL is a fixed-ratio RF balun transformer designed for signal conversion between balanced and unbalanced lines. It operates within a frequency range of 150 kHz to 200 MHz with a 1:9 impedance transformation ratio. The component utilizes a 6-pin DIP package configuration, suitable for through-hole mounting on printed circuit boards. This device facilitates efficient energy transfer in radio frequency circuits while maintaining signal integrity across its specified bandwidth.

Feature Summary

• Converts signals between balanced and unbalanced transmission lines
• Provides a fixed 1:9 impedance transformation ratio
• Operates effectively from 150 kHz to 200 MHz
• Housed in a standard 6-pin dual in-line package

Applications

• RF circuit signal balancing
• Antenna feed line matching
• Balanced-to-unbalanced signal conversion in communication systems

Procurement Notes

Verify the specific datasheet version for the 3-9-1DL to confirm pinout assignments and mechanical dimensions prior to integration. Ensure that the operating frequency requirements of the target application fall strictly within the 150 kHz to 200 MHz range defined by the manufacturer. Confirm RoHS compliance status if environmental regulations apply to the final assembly process.

Selection Notes

Select this component when a fixed 1:9 impedance transformation is required for frequencies up to 200 MHz. The 6-pin DIP form factor is appropriate for designs utilizing through-hole technology. Consider thermal management and physical space constraints associated with the DIP package when arranging the layout on the printed circuit board.

Part Context

This balun belongs to Bourns Inc.'s magnetic products portfolio, specifically engineered for radio frequency applications. The company manufactures various passive components including resistors, inductors, and transformers. The 3-9-1DL serves as a specialized solution for impedance matching and signal conversion tasks in electronic systems requiring reliable RF performance.

Replacement Considerations

Consult official Bourns documentation for direct cross-reference part numbers. Verify that any substitute component matches the 1:9 ratio, 150 kHz–200 MHz frequency range, and 6-pin DIP package specifications to ensure functional compatibility.