Molex 2018410141 Rectangular Connector Housing - Equivalent & Substitute Parts

Part Overview

The Molex 2018410141 is a 4-position rectangular connector receptacle housing with 7.40mm pitch, designed for free-hanging in-line applications. This component is part of the MultiCat 201841 series and features Connector Position Assurance (CPA) for secure mating. The part is Active in product status with full RoHS3 compliance and REACH unaffected designation. Substitute parts are identified when equivalent electrical and mechanical parameters are maintained across the connector interface, allowing for interchangeability in applications where housing color variation is acceptable.

Substiute Parts

2018410141

MolexIn Stock: 9892018410141 Datasheet

Current PartRFQ

2018410140

MolexIn Stock: 1004862018410140 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Molex 2018410141 is determined by strict equivalence across the following critical parameters:

• Connector type (Receptacle)
• Contact type (Female Socket)
• Number of positions (4)
• Pitch specification (0.291" / 7.40mm)
• Number of rows (1)
• Mounting configuration (Free Hanging In-Line)
• Contact termination method (Crimp)
• Fastening mechanism (Latch Lock)
• Insulation material (Polyetherimide PEI)
• Operating temperature range (-40°C to 150°C)
• Feature set (Connector Position Assurance)

The Molex 2018410140 qualifies as a parametric equivalent substitute. The only variance between these parts is the housing color (Gray versus Black), which does not affect electrical performance, mechanical fit, or thermal characteristics. Both parts maintain identical pitch, position count, termination method, and environmental ratings.

Parameter Comparison

Engineering Selection Recommendations

Both the Molex 2018410141 and 2018410140 are Active products with identical compliance certifications (RoHS3 Compliant, REACH Unaffected). Selection between these parts should be based on application-specific requirements regarding housing color. The 2018410141 (Gray) and 2018410140 (Black) are electrically and mechanically interchangeable within the MultiCat 201841 series. Both parts support the same contact types, pitch specifications, and environmental operating ranges. Component selection should consider color coding requirements for circuit board assembly, connector identification, or system design specifications where housing color carries functional significance.

Frequently Asked Questions (FAQ)

Q: Can the Molex 2018410140 (Black) directly replace the Molex 2018410141 (Gray) in existing designs?

A: Yes. Both parts are parametric equivalents with identical electrical and mechanical specifications. The only difference is housing color. Substitution is valid provided that color coding does not serve a functional requirement in the application.

Q: Are the contact positions and pitch identical between these two parts?

A: Yes. Both parts feature 4 positions with 0.291" (7.40mm) pitch in a single-row configuration. Mating interfaces are identical.

Q: Do both parts support the same operating temperature range?

A: Yes. Both the 2018410141 and 2018410140 operate across -40°C to 150°C.

Q: What is the significance of Connector Position Assurance (CPA) in these housings?

A: CPA is a mechanical feature that ensures proper mating alignment and prevents incomplete or incorrect connector engagement. Both parts include this feature.

Q: Are contacts included with these housing parts?

A: No. Both the 2018410141 and 2018410140 are housings only. Contacts must be sourced separately and crimped into the housing.

Q: What is the difference in inventory availability between these parts?

A: The 2018410141 (Gray) has 899 pieces in stock, while the 2018410140 (Black) has 100,400 pieces in stock. Availability may influence procurement decisions for high-volume applications.

Q: Are both parts RoHS3 compliant?

A: Yes. Both the 2018410141 and 2018410140 are RoHS3 Compliant and REACH Unaffected.