FHG.0B.302.CLAD42Z Equivalent & Substitute Parts

Part Overview

The FHG.0B.302.CLAD42Z is a 2-position circular connector plug with male pins and solder cup termination, manufactured by LEMO. This connector features a 302 shell size with push-pull fastening, gold-plated mating contacts, and shielded construction rated for 10A at operating temperatures from -55°C to 250°C. The product is currently obsolete, making identification of equivalent and substitute parts essential for system maintenance, repair, and component sourcing in legacy applications.

Substiute Parts

FHG.0B.302.CLAD42Z

LEMOIn Stock: 832FHG.0B.302.CLAD42Z Datasheet

Current PartRFQ

FPG.0B.302.CLAD42Z

LEMOIn Stock: 1190FPG.0B.302.CLAD42Z Datasheet

MFR RecommendedRFQ

W20L0C-P02MJG0-420S

ODUIn Stock: 777W20L0C-P02MJG0-420S Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the FHG.0B.302.CLAD42Z are identified based on strict electrical and mechanical compatibility criteria. The following parameters define acceptable substitution:

Primary Compatibility Criteria:

• Connector type: Plug with male pins
• Number of positions: 2
• Termination method: Solder cup
• Fastening mechanism: Push-pull
• Mounting configuration: Free hanging (in-line), right angle
• Contact finish: Gold plating on mating surfaces
• Ingress protection: IP50 or equivalent
• Shell material: Brass with chrome finish
• Insert material: Polyetheretherketone (PEEK)

Electrical Compatibility Criteria:

• Current rating: 10A minimum
• Operating temperature range: Must encompass or match -55°C to 250°C
• Shielding: Shielded construction

Substitute parts are grouped into two categories: manufacturer-recommended equivalents (same series, active product status) and similar cross-manufacturer alternatives (different series, functionally equivalent).

Parameter Comparison

Engineering Selection Recommendations

FPG.0B.302.CLAD42Z (LEMO - Recommended Equivalent)

This part is the primary substitute for the obsolete FHG.0B.302.CLAD42Z. Both connectors share identical electrical and mechanical specifications, including shell size 302, 10A current rating, -55°C to 250°C operating temperature range, and shielded construction. The FPG.0B.302.CLAD42Z is currently in active production status with 1162 units in stock, ensuring long-term availability. The addition of detent lock fastening provides enhanced mechanical retention compared to the original push-pull mechanism. Both parts maintain ROHS3 compliance and REACH unaffected status. This connector is the direct replacement for legacy applications requiring no design modification.

W20L0C-P02MJG0-420S (ODU MINI-SNAP® L - Alternative Substitute)

This ODU connector provides functional substitution with notable parameter deviations. The W20L0C-P02MJG0-420S maintains 2-position solder cup termination, push-pull fastening, and gold-plated contacts. However, three critical differences exist: shell size 0 (versus 302), reduced current rating of 7.5A (versus 10A), and narrower operating temperature range of -40°C to 120°C (versus -55°C to 250°C). Additionally, this connector features unshielded construction compared to the shielded design of the original part. The W20L0C-P02MJG0-420S is suitable only for applications where the reduced electrical specifications and unshielded configuration are acceptable. This part is currently active with 712 units in stock and maintains ROHS3 compliance.

Frequently Asked Questions (FAQ)

Q: Can FPG.0B.302.CLAD42Z directly replace FHG.0B.302.CLAD42Z without design changes?

A: Yes. Both connectors share identical shell size (302), position count (2), termination method (solder cup), current rating (10A), operating temperature range (-55°C to 250°C), and shielding configuration. The addition of detent lock fastening on the FPG variant provides enhanced mechanical retention. No design modification is required.

Q: What are the limitations of using W20L0C-P02MJG0-420S as a substitute?

A: The W20L0C-P02MJG0-420S has three significant parameter deviations: reduced current rating (7.5A versus 10A), narrower operating temperature range (-40°C to 120°C versus -55°C to 250°C), and unshielded construction versus shielded. Applications requiring the full 10A rating, extended temperature operation, or electromagnetic shielding cannot use this substitute without design modification.

Q: Are all substitute parts RoHS and REACH compliant?

A: Yes. Both FPG.0B.302.CLAD42Z and W20L0C-P02MJG0-420S are ROHS3 compliant and REACH unaffected, matching the compliance status of the original FHG.0B.302.CLAD42Z.

Q: What is the difference between push-pull and push-pull with detent lock fastening?

A: Push-pull fastening requires manual engagement and disengagement of the connector. Push-pull with detent lock adds a mechanical locking feature that prevents accidental disconnection, providing enhanced retention. Both mechanisms are compatible with the same mating interface.

Q: Can I use the ODU W20L0C-P02MJG0-420S in high-temperature applications?

A: No. The W20L0C-P02MJG0-420S operating temperature range is -40°C to 120°C, which does not support the -55°C to 250°C range of the original FHG.0B.302.CLAD42Z. For applications requiring extended temperature operation, use FPG.0B.302.CLAD42Z.

Q: What is the significance of shell size differences between 302 and 0?

A: Shell size determines the physical dimensions and mating interface of the connector. Size 302 and size 0 are not mechanically compatible. The FPG.0B.302.CLAD42Z maintains the original 302 shell size for direct mechanical compatibility. The W20L0C-P02MJG0-420S with size 0 requires mechanical redesign of the mating interface.

Q: Why is shielding important in connector selection?

A: Shielding provides electromagnetic interference (EMI) protection. The original FHG.0B.302.CLAD42Z and recommended substitute FPG.0B.302.CLAD42Z are shielded. The W20L0C-P02MJG0-420S is unshielded and unsuitable for applications requiring EMI protection.