Molex 0395237409 Terminal Block Plug – Equivalent & Substitute Parts

Part Overview

The Molex 0395237409 is a 9-position terminal block plug with female sockets, 5.00mm pitch, and 270° wire entry orientation. This component is part of the Eurostyle ESE 39523 series and is actively manufactured. The part operates at 15A (UL) / 300V (UL) and supports wire gauges from 12–26 AWG with screw-based rising cage clamp termination. Finding equivalent substitute parts is necessary when the original part is unavailable, when alternative sourcing reduces lead times, or when system design requires compatibility with different connector series while maintaining electrical and mechanical performance.

Substiute Parts

0395237409

MolexIn Stock: 9240395237409 Datasheet

Current PartRFQ

1948070000

WeidmüllerIn Stock: 8971948070000 Datasheet

MFR RecommendedRFQ

1949090000

WeidmüllerIn Stock: 9991949090000 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Molex 0395237409 is determined by the following critical parameters:

Position Count & Pitch Compatibility: Both substitute parts maintain 9 positions and operate at 5.08mm pitch, which is mechanically compatible with 5.00mm pitch systems within standard tolerance ranges for terminal block applications.

Wire Entry Orientation: The Weidmüller 1949090000 matches the 270° wire entry orientation of the main part, ensuring identical connector alignment and installation geometry. The Weidmüller 1948070000 operates at 90° wire entry and is listed as an alternative for applications where wire routing differs.

Electrical Performance: Both substitutes meet or exceed the UL voltage requirement (300V) and support equivalent or higher current ratings (20A UL for both Weidmüller parts versus 15A for the Molex part). Both support wire gauges within the 12–26 AWG range of the main part.

Termination & Mounting: All three parts use screw-based termination and free-hanging in-line mounting. The Weidmüller parts employ clamping yoke (tension sleeve) termination versus the Molex rising cage clamp design; both are industry-standard screw termination methods.

Material & Compliance: All parts feature UL94 V-0 flammability ratings and RoHS compliance. Operating temperature ranges are compatible (Molex: –40°C to +105°C; Weidmüller: –50°C to +100°C).

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute – Weidmüller 1949090000: This part is the closest functional equivalent to the Molex 0395237409. It maintains identical 270° wire entry orientation, supports 9 positions at 5.08mm pitch, and meets all UL electrical requirements. Both parts are actively manufactured and RoHS compliant. The primary difference is the termination mechanism (clamping yoke versus rising cage clamp), which does not affect electrical or mechanical compatibility in standard applications. This part is suitable for direct substitution in new designs or as a replacement when the Molex part is unavailable.

Secondary Substitute – Weidmüller 1948070000: This part provides an alternative when 90° wire entry orientation is acceptable for the application. It shares the same electrical ratings, position count, and compliance certifications as the primary substitute. Selection of this part should be based on specific wire routing requirements and connector orientation constraints within the system design.

Compliance & Availability: All three parts carry active product status and meet current RoHS and flammability standards, ensuring long-term availability and regulatory compliance for new designs and production runs.

Frequently Asked Questions (FAQ)

Q: Can the Weidmüller 1949090000 be used as a direct replacement for the Molex 0395237409?

A: Yes. Both parts feature 9 positions, 270° wire entry, free-hanging in-line mounting, and equivalent UL electrical ratings (300V). The 5.08mm pitch of the Weidmüller part is mechanically compatible with the 5.00mm pitch Molex part within standard terminal block tolerances. The primary difference is the termination mechanism; both use screw-based clamping and are functionally equivalent.

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

A: The Weidmüller 1949090000 has 270° wire entry (matching the Molex part), while the Weidmüller 1948070000 has 90° wire entry. Both share identical electrical ratings, position count, and compliance certifications. Selection depends on wire routing and connector orientation requirements in your application.

Q: Are there any electrical performance differences between these parts?

A: No. All three parts meet the 300V UL voltage requirement. The Weidmüller substitutes are rated for 20A (UL), which exceeds the Molex 15A rating, providing additional current capacity margin. Wire gauge compatibility (12–26 AWG for Molex; 12–30 AWG for Weidmüller) ensures compatibility across standard wire sizes.

Q: Do these parts have the same operating temperature range?

A: The Molex part operates from –40°C to +105°C, while both Weidmüller parts operate from –50°C to +100°C. The Weidmüller parts provide a lower minimum temperature rating but a slightly lower maximum temperature. For most industrial applications within –40°C to +100°C, both are equivalent.

Q: Are all three parts RoHS compliant?

A: Yes. The Molex 0395237409 is ROHS3 compliant, and both Weidmüller substitutes are RoHS compliant. All parts meet current environmental and regulatory standards for new designs and production.

Q: What is the difference in termination style, and does it affect compatibility?

A: The Molex part uses screw-based rising cage clamp termination, while the Weidmüller parts use screw-based clamping yoke (tension sleeve) termination. Both are industry-standard screw termination methods that provide equivalent electrical contact and mechanical retention. The difference does not affect electrical or mechanical compatibility in standard applications.