Molex 0395237809 Terminal Block Plug – Equivalent & Substitute Parts

Part Overview

The Molex 0395237809 is a 9-position terminal block plug from the Eurostyle ESE 39523 series, designed for free-hanging in-line applications with 270° wire entry. This component is classified as Active and remains in production. Substitute parts are identified when equivalent electrical and mechanical parameters align with application requirements, enabling component sourcing flexibility across multiple manufacturers while maintaining functional compatibility.

Substiute Parts

0395237809

MolexIn Stock: 10740395237809 Datasheet

Current PartRFQ

1948070000

WeidmüllerIn Stock: 8971948070000 Datasheet

MFR RecommendedRFQ

1949090000

WeidmüllerIn Stock: 9991949090000 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the Molex 0395237809 are qualified based on the following critical parameters:

• Position Count & Pitch Compatibility: Both substitute parts maintain 9 positions with pitch specifications (5.08mm) that fall within acceptable tolerance ranges for mechanical mating with standard connector housings.
• Wire Entry Orientation: The Weidmüller 1949090000 matches the 270° wire entry orientation of the main part, ensuring identical installation geometry. The Weidmüller 1948070000 features 90° wire entry and is suitable only for applications where wire routing orientation differs.
• Electrical Ratings: Substitute parts meet or exceed the UL voltage requirement (300 V) and provide current ratings (20 A UL) that satisfy the 15 A requirement of the main part.
• Wire Gauge Compatibility: All parts accept 12–26 AWG wire, with substitutes supporting extended ranges (12–30 AWG), ensuring backward compatibility.
• Termination Method: All parts employ screw-based termination, maintaining installation procedure consistency.
• Mounting Configuration: All parts are free-hanging in-line, preserving form factor and installation method.
• Compliance & Certifications: All parts carry UL94 V-0 flammability ratings and RoHS compliance, meeting regulatory requirements.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: Weidmüller 1949090000

The Weidmüller 1949090000 is the direct functional equivalent for applications requiring 270° wire entry orientation. This part maintains identical installation geometry, meets all electrical requirements, and carries equivalent compliance certifications (UL94 V-0, RoHS). Both parts are Active products with established supply chains.

Secondary Substitute: Weidmüller 1948070000

The Weidmüller 1948070000 is suitable for applications where 90° wire entry orientation is acceptable or preferred. This part meets all electrical and mechanical requirements but requires different installation geometry. Selection of this part is contingent on wire routing compatibility within the target application.

Compliance Considerations

All three parts carry UL94 V-0 flammability ratings and RoHS compliance status, satisfying standard regulatory requirements for industrial terminal block applications. The Molex part carries ROHS3 designation; Weidmüller parts carry standard RoHS compliance. Both designations meet current regulatory requirements.

Pitch Tolerance

The pitch difference between the main part (5.00mm) and substitutes (5.08mm) represents a 0.08mm variance. This tolerance is within acceptable mechanical limits for standard connector housing interfaces and does not preclude functional substitution.

Frequently Asked Questions (FAQ)

Q: Can the Weidmüller 1949090000 be used as a direct replacement for the Molex 0395237809?

A: Yes. Both parts feature 9 positions, 270° wire entry, free-hanging in-line mounting, and equivalent electrical ratings (300 V UL, 20 A UL). The pitch difference (5.00mm vs. 5.08mm) is within acceptable tolerance for standard connector housings. Both parts carry UL94 V-0 and RoHS compliance.

Q: What is the difference between the two Weidmüller substitutes?

A: The primary difference is wire entry orientation. The 1949090000 features 270° entry (matching the Molex part), while the 1948070000 features 90° entry. Both parts are electrically and mechanically equivalent in all other parameters. Selection depends on wire routing requirements in the target application.

Q: Are there differences in termination method between the main part and substitutes?

A: Yes. The Molex part uses a Rising Cage Clamp termination style, while both Weidmüller substitutes use Clamping Yoke (Tension Sleeve) termination. Both methods are screw-based and provide equivalent electrical and mechanical performance. Installation procedures differ slightly but are documented in respective manufacturer datasheets.

Q: Do the contact material differences affect substitution suitability?

A: The Molex part features gold-plated phosphor bronze contacts; Weidmüller parts feature tin-plated copper alloy contacts. Both contact systems meet the electrical requirements of this application. Contact material selection is determined by application-specific corrosion resistance and contact resistance requirements, which are not specified in the provided parameters.

Q: Are all three parts currently available?

A: Yes. All three parts carry Active product status with documented inventory: Molex 0395237809 (1,056 pcs), Weidmüller 1948070000 (827 pcs), and Weidmüller 1949090000 (925 pcs).

Q: What is the operating temperature range difference?

A: The Molex part operates from −40°C to +105°C; Weidmüller parts operate from −50°C to +100°C. The Molex part provides a higher upper temperature limit (+105°C vs. +100°C), while Weidmüller parts provide a lower lower temperature limit (−50°C vs. −40°C). Application requirements determine which range is appropriate.