3700BL15C0100001E

Balun Overview

The 3700BL15C0100001E is an RF balun manufactured by Johanson Technology Inc., designed for signal conditioning applications. It operates within a frequency range of 3.4 GHz to 4 GHz, centered at 3.7 GHz. The component provides a 1:2 impedance transformation ratio, converting between unbalanced and balanced ports with impedances of 50 Ohms and 100 Ohms respectively. It utilizes a surface-mount (SMD/SMT) installation type in a 0805 (2012 metric) package with six printed circuit board pads. Key electrical specifications include a maximum insertion loss of 1.2 dB and a minimum return loss of 9.5 dB. The phase difference is specified as 180° ±25°. The device complies with RoHS3 standards and has a moisture sensitivity level of MSL 1.

Balun Feature Summary

• Provides 1:2 impedance transformation between 50 Ohm unbalanced and 100 Ohm balanced ports
• Operates effectively within the 3.4 GHz to 4 GHz frequency range
• Features low insertion loss of 1.2 dB and high return loss of 9.5 dB
• Utilizes a compact 0805 surface-mount package for board integration

Balun Applications

• RF front-end modules requiring balanced-to-unbalanced conversion
• Wireless communication systems operating in the 3.4-4 GHz band
• Signal conditioning circuits for high-frequency data transmission

Balun Procurement Notes

Verify the specific part number suffix against manufacturer documentation, as Johanson Technology has implemented global part numbering changes that may affect identification. Confirm that the requested component matches the 1:2 impedance ratio and 0805 package dimensions required for your design. Ensure compatibility with RoHS3 regulations if applicable to your region. Cross-reference the datasheet for any recent revisions to ensure technical parameters remain consistent with your system requirements.

Balun Selection Notes

Select this component when a 1:2 balun configuration is necessary for 3.4-4 GHz applications. The 0805 footprint offers a balance between performance and space efficiency. Consider the 1.2 dB insertion loss and 9.5 dB return loss limits to ensure they meet your system's signal integrity requirements. Verify that the 180° ±25° phase difference aligns with your circuit's phase noise and symmetry specifications before finalizing the design choice.

Balun Part Context

This component belongs to Johanson Technology's BL series of RF baluns, which are widely used in wireless connectivity solutions. The 3700BL15C0100001E specifically addresses the need for compact, high-performance impedance transformation in modern RF designs. Its classification under signal conditioning filters highlights its role in maintaining signal purity and matching in high-frequency circuits. The part is distinct from other series like BM or AL due to its specific frequency and impedance characteristics.

Balun Replacement Considerations

Public confirmed substitute part numbers include 3700BL15C0100E and 3700BL15C0050E. These aliases represent the same functional component under different naming conventions due to manufacturer part number updates. When substituting, verify that the physical footprint and pinout remain identical to avoid PCB redesign.