EM35MR-4SC Equivalent & Substitute Parts

Part Overview

The EM35MR-4SC is a 4-position rectangular connector housing from Hirose Electric's EnerBee™ EM series, designed for DIN rail mounting applications. This receptacle housing accommodates female socket contacts with crimp termination and is constructed from polybutylene terephthalate (PBT) for durability across industrial temperature ranges.

The EM35MR-4SC carries an obsolete product status. Identifying equivalent and substitute parts ensures design continuity and supply chain reliability for applications currently utilizing this connector housing.

Substiute Parts

EM35MR-4SC

Hirose Electric Co LtdIn Stock: 772EM35MR-4SC Datasheet

Current PartRFQ

EM35MR-4SC(81)

Hirose Electric Co LtdIn Stock: 1068EM35MR-4SC(81) Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the EM35MR-4SC is determined by the following critical parameters:

• Connector Type & Contact Configuration: Receptacle housing with female socket contacts
• Position Count: 4-position capacity
• Mounting Interface: DIN rail mounting compatibility
• Termination Method: Crimp contact termination
• Fastening Mechanism: Latch holder design
• Material & Environmental Compliance: PBT insulation, RoHS compliance, operating temperature range -40°C to 125°C

The substitute part EM35MR-4SC(81) maintains functional equivalence across all critical parameters. The primary difference is the row configuration (2 rows versus 4 rows) and packaging format (bag versus bulk), which do not affect the core electrical or mechanical compatibility for applications requiring a 4-position DIN rail receptacle housing.

Parameter Comparison

Engineering Selection Recommendations

The EM35MR-4SC(81) is the direct substitute for the obsolete EM35MR-4SC. Both parts are manufactured by Hirose Electric within the same EnerBee™ EM series and share identical electrical and mechanical specifications for connector housing functionality.

The EM35MR-4SC(81) carries active product status, ensuring ongoing availability and supply chain support. Both parts maintain RoHS compliance and identical environmental ratings (MSL 1, operating temperature -40°C to 125°C), confirming regulatory and operational equivalence.

The row configuration difference (4 rows in the original versus 2 rows in the substitute) reflects physical layout variation but does not affect the 4-position contact capacity or DIN rail mounting interface. Packaging format (bulk versus bag) is a logistics consideration and does not impact functional performance.

Frequently Asked Questions (FAQ)

Q: Can EM35MR-4SC(81) be used as a direct replacement for EM35MR-4SC?

A: Yes. Both parts are 4-position receptacle housings from the same manufacturer series with identical contact type, termination method, mounting interface, and environmental specifications. The substitute maintains full functional compatibility.

Q: What is the significance of the row configuration difference (4 rows versus 2 rows)?

A: The row configuration describes the physical arrangement of the 4 contact positions within the housing. This is a geometric parameter that does not affect electrical performance or mechanical compatibility with mating connectors or DIN rail mounting systems.

Q: Are there compliance or certification differences between these parts?

A: No. Both parts are RoHS compliant with identical moisture sensitivity levels (MSL 1) and operating temperature ranges (-40°C to 125°C). Regulatory and environmental compliance is equivalent.

Q: Why is the original part marked as obsolete?

A: Product obsolescence is a manufacturer lifecycle decision. The EM35MR-4SC(81) is the active equivalent, ensuring continued availability for new designs and replacement applications.

Q: Does packaging format affect connector performance?

A: No. Packaging (bulk versus bag) is a supply and logistics consideration. The connector housing itself and its electrical and mechanical properties remain unchanged.