3700BL15B050001E

Balun Overview

The 3700BL15B050001E is a ceramic chip balun manufactured by Johanson Technology Inc., designed for RF signal conditioning applications. It operates within the frequency range of 3.4 GHz to 4.0 GHz, centered around 3.7 GHz. The component provides impedance transformation between unbalanced and balanced ports with impedances of 50 ohms and 100 ohms respectively. It utilizes a surface-mount technology (SMD/SMT) package in the 0805 (2012 metric) dimension, featuring six printed circuit board pads. The device is RoHS compliant and suitable for operation within a temperature range of -40°C to +85°C.

Balun Feature Summary

• Provides balanced-to-unbalanced conversion for WiMAX and broadband RF signals
• Integrates impedance matching from 50 ohms to 100 ohms in a compact form factor
• Constructed using ceramic materials for stable high-frequency performance

Balun Applications

• WiMAX transceiver modules
• Broadband wireless communication systems
• RF front-end signal conditioning circuits

Balun Procurement Notes

Verify the specific suffix '001E' against the manufacturer's latest datasheet to confirm current production status and exact electrical tolerances. Ensure compatibility with the target PCB footprint and soldering profile. Cross-reference the part number with official Johanson Technology documentation to avoid confusion with similar series variants that may have different impedance ratios or frequency ranges.

Balun Selection Notes

Select this component when a 50-ohm single-ended input must be converted to a 100-ohm differential output in the 3.4–4.0 GHz band. The 0805 package size is appropriate for space-constrained designs requiring integrated passive components. Consider thermal management requirements given the operating temperature limits and ensure the application does not exceed the maximum power handling capabilities specified in the official data sheet.

Balun Part Context

This part belongs to the BL series of baluns from Johanson Technology, which are known for integrating passive components into small ceramic packages. The 3700 prefix indicates the center frequency of approximately 3.7 GHz. These components are typically used to replace discrete transformer and filter networks, reducing board space and improving consistency in high-frequency RF designs.

Balun Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material.