WIT2450FG Equivalent & Substitute Parts

Part Overview

The WIT2450FG is a General ISM > 1GHz Transceiver Module manufactured by Murata Electronics, operating at 2.4GHz with FHSS modulation and UART serial interface. This module features MMCX chassis mount antenna connectivity and is designed for wireless communication applications requiring ISM band operation. The product is currently classified as Obsolete, necessitating identification of functionally equivalent alternatives for ongoing system support and new designs.

Substiute Parts

WIT2450FG

Murata ElectronicsIn Stock: 828WIT2450FG Datasheet

Current PartRFQ

CL4424-RS232

Laird Connectivity Inc.In Stock: 920CL4424-RS232 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the WIT2450FG is determined by the following critical parameters that must align with the original design:

Mandatory Matching Parameters:

• RF Family/Standard: General ISM > 1GHz
• Frequency: 2.4GHz
• Modulation: FHSS
• Serial Interface: UART
• Mounting Type: Chassis Mount
• Package Type: Module

Allowable Variations:

• Antenna connector type (MMCX to RP-SMA or equivalent)
• Manufacturer identity (provided substitute is from different manufacturer)
• Specific inventory availability

The CL4424-RS232 from Laird Connectivity Inc. qualifies as a substitute based on matching RF standard, frequency band, modulation scheme, and serial interface protocol. The primary difference is the antenna connector type: RP-SMA chassis mount versus MMCX chassis mount.

Parameter Comparison

Engineering Selection Recommendations

Selection between the WIT2450FG and CL4424-RS232 must account for the following engineering considerations:

Antenna Connector Compatibility: The original WIT2450FG uses MMCX connectors, while the CL4424-RS232 uses RP-SMA connectors. System designs must accommodate this mechanical difference through appropriate antenna selection or adapter solutions.

Serial Interface Protocol: The WIT2450FG implements UART serial communication, while the CL4424-RS232 implements RS232. This represents a functional difference requiring evaluation of host system interface capabilities.

Compliance and Regulatory Status: Both modules maintain REACH Unaffected status, confirming compliance with EU hazardous substance restrictions. The WIT2450FG carries ECCN 5A991B1 and HTSUS 8525.60.1050 classifications for export control purposes.

Inventory and Availability: The CL4424-RS232 currently maintains 818 units in stock, providing supply continuity for designs transitioning from the obsolete WIT2450FG.

Frequently Asked Questions (FAQ)

Q: Can the CL4424-RS232 directly replace the WIT2450FG without modifications?

A: Direct replacement requires mechanical and electrical interface adaptation. The antenna connector type differs (RP-SMA versus MMCX), and the serial interface protocol differs (RS232 versus UART). System integration must address both differences.

Q: What is the significance of the antenna connector difference?

A: MMCX and RP-SMA are distinct mechanical connector standards. Antennas and cable assemblies designed for one standard are not compatible with the other without adapter components. System designs must specify appropriate antenna solutions for the selected module.

Q: Does the serial interface difference affect compatibility?

A: Yes. UART and RS232 represent different serial communication protocols with different electrical characteristics and signaling conventions. Host systems must support the selected protocol, or interface conversion circuitry must be implemented.

Q: Are both modules suitable for the same operating temperature range?

A: The WIT2450FG operates across -40°C to 85°C. Equivalent operating temperature specifications for the CL4424-RS232 are not provided in the available technical data.

Q: What is the REACH status significance?

A: REACH Unaffected status indicates the module does not contain substances of very high concern (SVHC) listed under EU Regulation (EC) No 1907/2006, confirming compliance with European environmental and health regulations.

Q: How should antenna selection be approached for the substitute module?

A: Antenna selection must match the RP-SMA connector standard of the CL4424-RS232. Frequency response, gain, and radiation pattern specifications must align with the 2.4GHz ISM band operating requirements of the application.