0900BL18B0200001E

Overview

The 0900BL18B0200001E is a surface-mount RF balun manufactured by Johanson Technology Inc. Designed for signal conditioning, this component operates within the 800 MHz to 1000 MHz frequency range. It features an unbalanced impedance of 50 Ohms and a balanced impedance of 200 Ohms, providing a 1:4 transformation ratio. The device utilizes a 1206 (3216 metric) SMD/SMT package suitable for automated assembly. It supports a wide operating temperature range from -40°C to +85°C and belongs to the BL series.

Feature Summary

• Provides 1:4 impedance transformation between 50 Ohm unbalanced and 200 Ohm balanced ports
• Optimized for operation in the 800 MHz to 1000 MHz frequency band
• Constructed in a compact 1206 surface-mount package for PCB integration

Applications

• Wireless sensor networks requiring 900 MHz connectivity
• Industrial, Scientific, and Medical (ISM) band equipment
• Low-power wireless communication modules
• IoT devices utilizing sub-GHz frequencies

Procurement Notes

Verify the current manufacturer part number against legacy identifiers, as the 0900BL18B0200001E replaces the previous designation 0900BL18B200. Ensure that procurement specifications explicitly reference the updated suffix to guarantee compatibility with existing design files and supply chain records. Confirm RoHS compliance status through official documentation prior to ordering.

Selection Notes

Select this component when a 1:4 balun is required for sub-GHz applications around 900 MHz. The 1206 footprint offers a balance between size and performance for space-constrained designs. Consider the 200 Ohm balanced output requirement to ensure proper matching with the connected circuitry. Verify thermal requirements against the specified -40°C to +85°C operational range for the intended environment.

Part Context

This component is part of Johanson Technology's BL series of passive signal conditioning devices. These baluns are engineered to convert single-ended signals to differential signals or vice versa, maintaining signal integrity in high-frequency circuits. The series is widely used in wireless infrastructure and consumer electronics where reliable impedance matching is critical for transmission efficiency.

Replacement Considerations

The direct legacy replacement for this part is 0900BL18B200. Designers updating existing boards should verify that the pinout and electrical characteristics remain identical between the legacy and current part numbers to avoid re-qualification efforts.