Molex 0395237916 Terminal Block Plug – Equivalent & Substitute Parts

Part Overview

The Molex 0395237916 is a 16-position terminal block plug from the Eurostyle ESE 39523 series, designed for free-hanging in-line applications with 5.00mm pitch spacing. This component features female sockets with screw-rising cage clamp termination, rated for 15A at 300V (UL), and operates across -40°C to 105°C. The part is currently active in production with 964 units in stock. Equivalent substitute parts are identified to support procurement flexibility, design revisions, or supply chain continuity when the primary part becomes unavailable.

Substiute Parts

0395237916

MolexIn Stock: 10680395237916 Datasheet

Current PartRFQ

1948930000

WeidmüllerIn Stock: 10871948930000 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Molex 0395237916 is determined by the following critical parameters:

Primary Compatibility Criteria:

• 16-position configuration
• Pitch tolerance: 5.00mm nominal (5.08mm acceptable within mechanical tolerance)
• Plug type with female sockets
• Free-hanging in-line mounting
• 270° wire entry orientation
• Screw-based termination (rising cage clamp or equivalent clamping mechanism)
• Minimum current rating: 15A
• Minimum voltage rating: 300V
• Operating temperature range overlap: minimum -40°C to +100°C
• UL94 V-0 flammability rating
• RoHS compliance

The Weidmüller 1948930000 qualifies as a manufacturer-recommended substitute based on these parameters. While pitch differs slightly (5.08mm vs. 5.00mm), this 0.08mm variance falls within standard mechanical tolerance for terminal block mating. Both parts maintain 16-position configuration, female socket type, free-hanging mounting, 270° wire entry, and screw termination with equivalent electrical performance.

Parameter Comparison

Engineering Selection Recommendations

Both the Molex 0395237916 and Weidmüller 1948930000 are active production components with full RoHS compliance and UL94 V-0 flammability certification, meeting regulatory requirements for industrial terminal block applications.

The Molex part operates to 105°C maximum, providing 5°C additional thermal headroom compared to the Weidmüller substitute at 100°C maximum. The Weidmüller part offers higher current capacity (20A vs. 15A at UL rating) and extended wire gauge compatibility (12-30 AWG vs. 12-26 AWG), providing design margin for higher-current applications.

Contact finish differs: Molex uses gold plating for enhanced corrosion resistance and contact reliability, while Weidmüller uses tin plating. Housing material also differs (PA66 nylon vs. PBT), affecting mechanical and thermal properties. Pitch tolerance (5.00mm vs. 5.08mm) is within standard mechanical acceptance for mating connector systems.

Selection between these parts should be based on application-specific requirements: thermal environment, current demand, contact finish requirements, and mechanical housing compatibility with mating receptacles.

Frequently Asked Questions (FAQ)

Q: Can the Weidmüller 1948930000 directly replace the Molex 0395237916 in existing designs?

A: Mechanical and electrical compatibility exists for most applications. The 0.08mm pitch difference (5.00mm vs. 5.08mm) falls within standard terminal block tolerance. However, mating receptacle compatibility must be confirmed, as some designs may have tight mechanical tolerances. Contact finish and housing material differences should be evaluated for specific environmental conditions.

Q: What is the significance of the pitch difference between these parts?

A: Pitch is the center-to-center spacing between adjacent positions. The 5.00mm (Molex) and 5.08mm (Weidmüller) difference of 0.08mm represents approximately 1.6% variance. This is within typical mechanical tolerance for terminal block systems and should not prevent mating with standard receptacles designed for 5mm pitch spacing.

Q: Are there differences in wire termination between these parts?

A: Yes. The Molex uses a rising cage clamp mechanism, while the Weidmüller uses a clamping yoke with tension sleeve. Both are screw-based termination methods providing equivalent mechanical and electrical performance. Torque specifications differ slightly (0.56 Nm for Molex vs. 0.4-0.5 Nm for Weidmüller), reflecting design differences.

Q: Which part should be selected for high-temperature applications?

A: The Molex 0395237916 supports operation to 105°C, providing 5°C additional margin over the Weidmüller part (100°C maximum). For applications approaching or exceeding 100°C, the Molex part is the preferred choice.

Q: Does contact finish affect electrical performance?

A: Gold plating (Molex) provides superior corrosion resistance and contact reliability in harsh or humid environments. Tin plating (Weidmüller) is suitable for standard industrial applications. Contact finish selection should reflect environmental exposure and long-term reliability requirements.

Q: Are both parts RoHS compliant?

A: Yes. The Molex 0395237916 is ROHS3 compliant, and the Weidmüller 1948930000 is RoHS compliant. Both meet current regulatory requirements for hazardous substance restrictions.