LF10WBP-4S Circular Connector Plug - Equivalent & Substitute Parts

Part Overview

The LF10WBP-4S is a 4-position circular connector plug with female sockets manufactured by Hirose Electric Co Ltd. This connector features solder cup termination, bayonet lock fastening, and is designed for industrial and telecommunications applications. The part is classified as obsolete, making equivalent substitute parts necessary for ongoing system maintenance and new design implementations where the original specification must be maintained.

Substiute Parts

LF10WBP-4S

Hirose Electric Co LtdIn Stock: 500287LF10WBP-4S Datasheet

Current PartRFQ

LF10WBP-4S(31)

Hirose Electric Co LtdIn Stock: 1993LF10WBP-4S(31) Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The LF10WBP-4S(31) qualifies as a direct substitute based on the following critical parameters:

• Identical connector type (Plug, Female Sockets)
• Identical number of positions (4)
• Identical shell size - insert (10)
• Identical termination method (Solder Cup)
• Identical fastening type (Bayonet Lock)
• Identical orientation (Keyed)
• Identical current rating (10A)
• Identical voltage rating (125VAC/DC)
• Identical operating temperature range (-25°C ~ 85°C)
• Identical ingress protection rating (IP67/IP68)
• Identical shielding configuration (Shielded)
• Identical series designation (LF)

The primary distinction between these parts is product status: the original LF10WBP-4S is obsolete, while LF10WBP-4S(31) maintains active status with current manufacturing support.

Parameter Comparison

Engineering Selection Recommendations

The LF10WBP-4S(31) is the direct functional equivalent for applications currently specified with LF10WBP-4S connectors. Selection of LF10WBP-4S(31) is supported by:

• Active product status with ongoing manufacturing availability
• RoHS3 compliance certification
• REACH compliance status
• Identical electrical and mechanical specifications
• Maintained series compatibility within the LF connector family

For new designs or system upgrades, LF10WBP-4S(31) provides continuity of performance while ensuring access to current supply chain support and compliance documentation.

Frequently Asked Questions (FAQ)

Q: Can LF10WBP-4S(31) be used as a direct replacement for LF10WBP-4S?

A: Yes. Both connectors share identical electrical ratings (10A, 125VAC/DC), mechanical configuration (4-position, shell size 10, bayonet lock), termination method (solder cup), and environmental specifications (IP67/IP68, -25°C ~ 85°C operating range).

Q: What is the primary reason to transition from LF10WBP-4S to LF10WBP-4S(31)?

A: The original LF10WBP-4S is classified as obsolete. LF10WBP-4S(31) maintains active status with current manufacturing support and compliance certifications.

Q: Are there packaging differences between these parts?

A: LF10WBP-4S is supplied in standard packaging, while LF10WBP-4S(31) is supplied in bulk packaging. Both are suitable for solder cup termination applications.

Q: Do these connectors have identical contact specifications?

A: Both connectors use copper alloy contacts with gold mating finish. Contact finish thickness differs slightly (8.00µin for LF10WBP-4S versus 7.87µin for LF10WBP-4S(31)), remaining within acceptable tolerance for the 10A current rating.

Q: What compliance certifications apply to LF10WBP-4S(31)?

A: LF10WBP-4S(31) is RoHS3 compliant and REACH affected. Material flammability rating is UL94 V-0 for both variants.