Molex 0533750486 Rectangular Connector Header - Equivalent & Substitute Parts

Part Overview

The Molex 0533750486 is a shrouded vertical rectangular connector header designed for through-hole mounting in board-to-cable/wire applications. This 4-position Mini-Lock 53375 series connector features a 2.5mm pitch and is rated for 250VAC/DC operation across industrial and general-purpose applications. The part is currently listed as obsolete, making equivalent substitutes necessary for ongoing production and maintenance requirements.

Substiute Parts

0533750486

MolexIn Stock: 8960533750486 Datasheet

Current PartRFQ

0533750410

MolexIn Stock: 1229380533750410 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Molex 0533750486 is determined by strict alignment with the following electrical and mechanical parameters:

• Connector Series & Pitch: Must be Mini-Lock 53375 series with 0.098" (2.50mm) mating pitch to ensure mechanical and electrical compatibility with mating connectors
• Position Count & Configuration: Must maintain 4 positions in a single row to preserve PCB footprint and wiring harness compatibility
• Mounting & Shrouding: Must be through-hole mounted with shrouded 4-wall design for identical board integration and EMI protection
• Electrical Ratings: Must support minimum 250V rating and -40°C to 105°C operating temperature range
• Contact & Termination: Must use male pin contacts with kinked pin solder termination and locking ramp fastening
• Material Specifications: Must use phosphor bronze contacts with tin finish and PBTP glass-filled insulation

The substitute part 0533750410 meets all these criteria while offering active product status and improved availability.

Parameter Comparison

Engineering Selection Recommendations

The Molex 0533750410 is the direct equivalent substitute for the obsolete 0533750486. Both parts are functionally identical across all critical electrical and mechanical parameters, including connector series, pitch, position count, mounting configuration, and contact specifications.

The 0533750410 offers significant advantages for new designs and ongoing production:

• Active Product Status: The substitute maintains current manufacturing and full supplier support, eliminating obsolescence risk
• Regulatory Compliance: ROHS3 and REACH compliance certifications are documented, meeting modern environmental and safety standards
• Improved Availability: Inventory of 122,848 units ensures reliable supply compared to the obsolete part's limited stock
• Identical Electrical Performance: Both parts support 250V operation and -40°C to 105°C temperature range with UL94 V-0 flammability rating
• Mechanical Interchangeability: Identical PCB footprint, mating interface, and shrouding design enable direct board-level substitution

The only documented difference is insulation color (green vs. white), which does not affect electrical or mechanical function. This substitution requires no design changes, PCB modifications, or harness reconfiguration.

Frequently Asked Questions (FAQ)

Q: Can the 0533750410 be used as a direct replacement for the 0533750486 on existing PCBs?

A: Yes. Both parts share identical mechanical dimensions, through-hole mounting footprint, and electrical specifications. No PCB redesign is required.

Q: Are the mating connectors compatible between these two parts?

A: Yes. Both parts are Mini-Lock 53375 series with 0.098" (2.50mm) pitch. Existing mating connectors designed for the 0533750486 will function identically with the 0533750410.

Q: What is the significance of the insulation color difference?

A: Insulation color (green vs. white) is a cosmetic variation that does not affect electrical performance, mechanical compatibility, or functional operation. Selection can be based on assembly or identification preferences.

Q: Does the 0533750410 meet current regulatory requirements?

A: Yes. The 0533750410 is ROHS3 compliant and REACH unaffected, meeting current environmental and safety regulations. The 0533750486 status for these certifications was not specified.

Q: What is the Moisture Sensitivity Level difference, and does it matter?

A: The 0533750410 has MSL 1 (Unlimited), indicating no moisture sensitivity restrictions during storage and handling. The 0533750486 had vendor-undefined MSL. For practical purposes, the 0533750410 offers simpler logistics and storage requirements.

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

A: Both parts support 250V operation. The 0533750486 specifies 250VAC/DC while the 0533750410 specifies 250V. Both are suitable for the same voltage applications. Operating temperature range is identical at -40°C to 105°C.

Q: Can I mix these parts in the same assembly?

A: Yes. Since both parts are electrically and mechanically identical, they can be used interchangeably within the same assembly or production batch without functional impact.