EM35WBP-4SC Equivalent & Substitute Parts

Part Overview

The EM35WBP-4SC is a 4-position circular connector plug housing manufactured by Hirose Electric Co Ltd as part of the EnerBee™ EM-W series. This component is designed for female socket applications with free-hanging (in-line) mounting configuration, featuring bayonet lock fastening and IP68 ingress protection. The part is classified as obsolete, making identification of equivalent alternatives essential for ongoing system maintenance and component procurement.

Substiute Parts

EM35WBP-4SC

Hirose Electric Co LtdIn Stock: 965EM35WBP-4SC Datasheet

Current PartRFQ

EM35WBP-4SC(81)

Hirose Electric Co LtdIn Stock: 1177EM35WBP-4SC(81) Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the EM35WBP-4SC is determined by strict equivalence across the following critical parameters:

• Connector Type & Configuration: Plug housing for female sockets with identical position count (4 positions: 3 Power + PE)
• Shell Size & Mechanical Interface: Shell size 35 with bayonet lock fastening and keyed orientation
• Mounting Specification: Free hanging (in-line) configuration
• Environmental & Compliance Requirements: IP68 ingress protection, UL94 V-0 flammability rating, RoHS compliance
• Electrical & Thermal Performance: Operating temperature range -40°C ~ 125°C, crimp contact type with 4 Power contact size
• Material Specifications: Aluminum alloy shell with nickel finish, PBT insert material

The substitute part EM35WBP-4SC(81) maintains complete equivalence across all specified parameters, with the only distinction being packaging format (tray versus standard packaging).

Parameter Comparison

Engineering Selection Recommendations

Both EM35WBP-4SC and EM35WBP-4SC(81) are classified as obsolete products. Selection between these parts should be based on the following factors:

Inventory Availability: EM35WBP-4SC(81) currently maintains higher inventory levels (1127 Pcs) compared to EM35WBP-4SC (860 Pcs), providing improved procurement reliability for ongoing applications.

Packaging Consideration: EM35WBP-4SC(81) is supplied in tray packaging, while EM35WBP-4SC uses standard packaging. Packaging selection should align with receiving, storage, and assembly workflow requirements.

Compliance & Certification: Both parts maintain identical RoHS compliance status and UL94 V-0 flammability rating, ensuring equivalent regulatory and safety performance in end-use applications.

Functional Equivalence: Complete parameter equivalence across connector type, position count, shell size, fastening mechanism, environmental protection rating, and operating temperature range confirms direct substitutability without design modification.

Frequently Asked Questions (FAQ)

Q: Can EM35WBP-4SC(81) be used as a direct replacement for EM35WBP-4SC?

A: Yes. Both parts are functionally identical across all electrical, mechanical, and environmental specifications. The only difference is packaging format (tray versus standard). No design or assembly modifications are required.

Q: What does the "(81)" designation indicate?

A: The "(81)" suffix identifies the packaging format as tray. This is a packaging variant of the base part number EM35WBP-4SC and does not affect component functionality or performance.

Q: Are there any compatibility concerns when substituting between these parts?

A: No. Both parts maintain identical connector type, position configuration, shell size, fastening mechanism, and mounting specification. They are mechanically and electrically interchangeable.

Q: Why is product status listed as obsolete for both parts?

A: Both EM35WBP-4SC and EM35WBP-4SC(81) are obsolete products from Hirose Electric Co Ltd. This status indicates the manufacturer no longer actively produces these components. Existing inventory remains available for procurement.

Q: What should be considered when selecting between the two packaging options?

A: Selection should be based on receiving and assembly requirements. Tray packaging (EM35WBP-4SC(81)) may provide advantages for automated handling systems, while standard packaging (EM35WBP-4SC) may be suitable for manual assembly workflows.

Q: Are both parts RoHS compliant?

A: Yes. Both EM35WBP-4SC and EM35WBP-4SC(81) maintain RoHS compliance status and are suitable for applications requiring regulatory compliance with hazardous substance restrictions.