Molex 0366330027 Equivalent & Substitute Parts

Part Overview

The Molex 0366330027 is a rectangular connector header designed for through-hole mounting in board-to-cable/wire applications. This connector features a vertical orientation with 20 positions arranged in 2 rows, utilizing a 0.165" (4.20mm) pitch and shrouded 4-wall design. The part is classified as obsolete, making identification of active equivalent components essential for ongoing production and maintenance applications.

Substiute Parts

0366330027

MolexIn Stock: 9930366330027 Datasheet

Current PartRFQ

0874272042

MolexIn Stock: 12690874272042 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the Molex 0366330027 is determined by strict equivalence across the following critical parameters:

• Connector Type & Contact Configuration: Header with male pins
• Position Count & Row Configuration: 20 positions in 2 rows
• Pitch Specifications: 0.165" (4.20mm) mating pitch and row spacing
• Mounting & Termination: Through-hole solder termination
• Shrouding Design: Shrouded 4-wall construction
• Material & Finish Specifications: Brass contacts with tin finish, polyamide insulation
• Mechanical Dimensions: Insulation height of 0.504" (12.80mm), square contact shape
• Compliance Standards: UL94 V-0 flammability rating, ROHS3 compliance

The substitute part must match all these parameters to ensure functional and mechanical compatibility in existing board designs and mating connector applications.

Parameter Comparison

Engineering Selection Recommendations

The Molex 0874272042 serves as the direct active equivalent to the obsolete Molex 0366330027. Both components are manufactured by Molex within the Mini-Fit Jr 87427 series and maintain identical electrical and mechanical specifications across all critical parameters.

The primary distinction between these parts is product status: the 0366330027 is classified as obsolete, while the 0874272042 is active. This status change reflects manufacturing lifecycle progression rather than technical modification. Both parts maintain ROHS3 compliance and UL94 V-0 flammability certification, ensuring regulatory alignment for industrial, telecommunications, and general-purpose applications.

The 0874272042 is available in bulk packaging with higher inventory levels (1181 pieces in stock versus 938 pieces for the obsolete variant), supporting production continuity and supply chain stability.

Frequently Asked Questions (FAQ)

Q: Are the 0366330027 and 0874272042 mechanically interchangeable?

A: Yes. Both connectors share identical mechanical specifications including 20-position configuration, 0.165" (4.20mm) pitch, 2-row arrangement, shrouded 4-wall design, and 0.504" (12.80mm) insulation height. They are direct mechanical substitutes.

Q: What is the difference between these two part numbers?

A: The primary difference is product lifecycle status. The 0366330027 is obsolete, while the 0874272042 is active. All electrical and mechanical parameters are identical. The 0874272042 represents the current manufacturing equivalent.

Q: Can I use the 0874272042 as a replacement in existing designs using the 0366330027?

A: Yes. The 0874272042 is a direct functional and mechanical equivalent. No design modifications are required for substitution in applications currently using the 0366330027.

Q: Are there any compliance or certification differences?

A: No. Both parts maintain identical compliance certifications: ROHS3 compliance, UL94 V-0 flammability rating, and MSL 1 (Unlimited) moisture sensitivity level.

Q: What packaging options are available?

A: The 0366330027 is available in standard packaging, while the 0874272042 is supplied in bulk packaging. Both are suitable for production assembly processes.

Q: Are both parts suitable for industrial and telecommunications applications?

A: Yes. Both connectors are rated for general purpose, industrial, and telecommunications applications with identical environmental and operational classifications.