HMD9120E

Overview

The HMD9120E is an LTCC RF diplexer manufactured by SOSHIN ELECTRIC CO., LTD. It operates within the 2.4 GHz to 2.5 GHz and 4.9 GHz to 5.5 GHz frequency bands, facilitating simultaneous transmission and reception in dual-band wireless systems. Designed for surface-mount applications, this component utilizes Low-Temperature Co-fired Ceramic technology to ensure high reliability and thermal stability. The device integrates filtering functions into a compact form factor, suitable for space-constrained mobile and IoT devices requiring efficient signal separation between Wi-Fi and Bluetooth or similar dual-band interfaces.

Feature Summary

• Integrates dual-band filtering capabilities for 2.4 GHz and 5 GHz operations
• Utilizes LTCC technology for enhanced thermal and mechanical stability
• Designed for compact surface-mount integration in mobile electronics

Applications

• Dual-band Wi-Fi modules
• Bluetooth coexistence systems
• IoT communication devices

Procurement Notes

Verify the specific ordering suffix against official SOSHIN documentation to confirm package type and tape/reel specifications. Ensure compatibility with standard reflow soldering profiles defined in the datasheet. Cross-reference the manufacturer part number with authorized distributor catalogs to avoid counterfeit components. Confirm that the requested variant matches the required impedance and isolation characteristics for the target circuit design.

Selection Notes

Select this component when designing circuits requiring physical separation of 2.4 GHz and 5 GHz signals within a limited footprint. Consider the LTCC construction for environments demanding robust thermal performance. Evaluate insertion loss and isolation requirements against system sensitivity thresholds. Ensure the PCB layout supports the specified ground plane and impedance line configurations for optimal RF performance.

Part Context

This component belongs to SOSHIN's portfolio of RF filters and multiplexers, which are engineered for high-frequency applications. The company specializes in ceramic-based passive components, including EMI filters and capacitors. The HMD9120E represents a solution for modern wireless standards that mandate concurrent operation across multiple unlicensed bands, addressing interference challenges in dense RF environments.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Engineers should consult SOSHIN Electric directly for approved equivalents or pin-compatible alternatives that meet identical electrical specifications and mechanical constraints.