FHG.0B.304.CYCD52Z Equivalent & Substitute Parts

Part Overview

The FHG.0B.304.CYCD52Z is a 4-position circular connector plug with male pins, manufactured by LEMO in the 0B series. This component features crimp termination, push-pull fastening, and gold-plated mating contacts suitable for applications requiring shielded connections with IP50 dust protection. The part is currently listed as obsolete, making identification of equivalent and substitute components essential for ongoing system support and procurement planning.

Substiute Parts

FHG.0B.304.CYCD52Z

LEMOIn Stock: 1145FHG.0B.304.CYCD52Z Datasheet

Current PartRFQ

FPG.0B.304.CYCD52Z

LEMOIn Stock: 1114FPG.0B.304.CYCD52Z Datasheet

MFR RecommendedRFQ

W20L0C-P04PFG0-520S

ODUIn Stock: 753W20L0C-P04PFG0-520S Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the FHG.0B.304.CYCD52Z are identified based on the following critical parameters that determine functional compatibility:

Primary Matching Criteria:

• Connector type: Plug with male pins
• Number of positions: 4
• Termination method: Crimp
• Fastening mechanism: Push-Pull
• Contact finish: Gold plating on mating surfaces
• Ingress protection: IP50 or equivalent
• Mounting configuration: Free hanging, right angle orientation

Secondary Compatibility Parameters:

• Current rating: 7A or greater
• Operating temperature range: Must encompass -55°C to 250°C or be suitable for the intended application
• Shell material and finish: Brass with chrome plating
• Shielding capability: Shielded configuration
• RoHS and REACH compliance status

Two substitute parts meet these criteria: the FPG.0B.304.CYCD52Z (LEMO manufacturer recommended equivalent) and the W20L0C-P04PFG0-520S (ODU alternative from a different manufacturer).

Parameter Comparison

Engineering Selection Recommendations

FPG.0B.304.CYCD52Z (LEMO - Manufacturer Recommended)

The FPG.0B.304.CYCD52Z is the primary substitute for the obsolete FHG.0B.304.CYCD52Z. This part maintains identical electrical and mechanical specifications, including the same shell size (304), 4-position configuration, crimp termination, and operating temperature range (-55°C to 250°C). Both parts are ROHS3 compliant and REACH unaffected. The FPG.0B.304.CYCD52Z is currently in active production status with 1103 units in stock, ensuring long-term availability. The shielded configuration is preserved, maintaining electromagnetic compatibility characteristics of the original design.

W20L0C-P04PFG0-520S (ODU - Cross-Manufacturer Alternative)

The W20L0C-P04PFG0-520S from ODU provides a functional alternative when LEMO parts are unavailable. This connector shares the 4-position male pin configuration, crimp termination, push-pull fastening, and gold contact finish. Current rating is 7.5A, exceeding the original 7A specification. However, this part differs in the following aspects: the operating temperature range is limited to -40°C to 120°C (narrower than the original -55°C to 250°C), the connector is unshielded rather than shielded, and the shell size designation differs (0 versus 304). The ODU part is ROHS3 compliant and REACH unaffected. Selection of this alternative requires confirmation that the reduced temperature range and unshielded configuration are acceptable for the intended application.

Frequently Asked Questions (FAQ)

Q: Can the FPG.0B.304.CYCD52Z directly replace the FHG.0B.304.CYCD52Z?

A: Yes. The FPG.0B.304.CYCD52Z is the direct equivalent, maintaining identical specifications for shell size, number of positions, termination method, contact finish, operating temperature range, and shielding configuration. Both parts are ROHS3 compliant and REACH unaffected.

Q: What are the key differences between the LEMO and ODU substitutes?

A: The FPG.0B.304.CYCD52Z (LEMO) is a direct equivalent. The W20L0C-P04PFG0-520S (ODU) differs in three critical areas: operating temperature range (-40°C to 120°C versus -55°C to 250°C), shielding configuration (unshielded versus shielded), and shell size designation. The ODU part provides higher current capacity (7.5A versus 7A).

Q: Is the ODU W20L0C-P04PFG0-520S suitable for applications requiring shielding?

A: No. The W20L0C-P04PFG0-520S is unshielded, whereas the original FHG.0B.304.CYCD52Z and its direct equivalent FPG.0B.304.CYCD52Z are shielded. If electromagnetic shielding is required for the application, the LEMO FPG.0B.304.CYCD52Z is the appropriate choice.

Q: Can the ODU connector be used in high-temperature applications?

A: The W20L0C-P04PFG0-520S has an operating temperature range of -40°C to 120°C. If the application requires operation at temperatures below -40°C or above 120°C, this part is not suitable. The LEMO FPG.0B.304.CYCD52Z supports -55°C to 250°C and is the correct choice for extended temperature range requirements.

Q: Are both substitute parts compliant with current environmental regulations?

A: Yes. Both the FPG.0B.304.CYCD52Z and W20L0C-P04PFG0-520S are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.

Q: What is the cable opening tolerance for each part?

A: The FHG.0B.304.CYCD52Z and FPG.0B.304.CYCD52Z both accept cable diameters of 0.165" to 0.205" (4.20mm to 5.20mm). The W20L0C-P04PFG0-520S accepts 0.157" to 0.205" (4.00mm to 5.20mm), providing a slightly wider lower tolerance.