Molex 0702800733 Equivalent & Substitute Parts

Part Overview

The Molex 0702800733 is an active rectangular connector header designed for through-hole mounting applications. This 50-position, 2-row connector with 0.100" (2.54mm) pitch serves board-to-board and cable interconnection requirements across automotive, medical, telecommunications, and general-purpose applications. Finding equivalent parts is necessary to ensure design flexibility, manage supply chain continuity, and accommodate specific performance or compliance requirements in production environments.

Substiute Parts

0702800733

MolexIn Stock: 11780702800733 Datasheet

Current PartRFQ

7-146252-5

TE Connectivity AMP ConnectorsIn Stock: 17097-146252-5 Datasheet

MFR RecommendedRFQ

77313-124-50LF

Amphenol ICC (FCI)In Stock: 119077313-124-50LF Datasheet

MFR RecommendedRFQ

87346-4

TE Connectivity AMP ConnectorsIn Stock: 116887346-4 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Molex 0702800733 is determined by strict alignment of the following critical parameters:

• Connector Configuration: 50 positions, 2 rows, 0.100" (2.54mm) pitch and row spacing
• Connector Type: Header with breakaway capability
• Contact Type: Male pin configuration
• Mounting Method: Through-hole solder termination
• Fastening Mechanism: Push-pull engagement
• Insulation Material Class: Thermoplastic or LCP-based materials
• Contact Shape: Square profile
• Compliance Standards: UL94 V-0 flammability rating, RoHS compliance, MSL 1

The three qualified substitute parts meet these core electrical and mechanical parameters while maintaining functional interchangeability in standard PCB applications. Variations in contact finish, contact length, insulation height, and operating temperature ranges are secondary parameters that do not prevent substitution but may influence performance in specific environmental or thermal conditions.

Parameter Comparison

Engineering Selection Recommendations

All three substitute parts maintain active product status and meet core RoHS and MSL compliance requirements equivalent to the Molex 0702800733. Selection among substitutes should be based on the following compliance and certification factors:

TE Connectivity 7-146252-5: Offers specified operating temperature range (-65°C to 105°C) and current rating (3A), with gold mating contact finish and LCP insulation. Suitable for applications requiring defined thermal performance specifications.

Amphenol ICC 77313-124-50LF: Provides the widest operating temperature range (-65°C to 130°C) and specified current rating (3A per contact), with phosphor bronze contact material and thermoplastic insulation. Includes REACH compliance documentation. Appropriate for high-temperature or extended thermal cycling environments.

TE Connectivity 87346-4: Maintains ROHS3 compliance matching the original part, with phosphor bronze contact material and polyamide insulation. Lacks specified operating temperature and current ratings; suitable for general-purpose applications where thermal specifications are not critical.

Frequently Asked Questions (FAQ)

Q: Can the TE Connectivity 7-146252-5 be used as a direct replacement for the Molex 0702800733?

A: Yes. Both connectors share identical pitch (0.100"), position count (50), row configuration (2 rows), mounting method (through-hole solder), and fastening type (push-pull). The primary difference is contact finish (gold versus tin) and specified operating temperature range, which do not prevent functional interchangeability in standard applications.

Q: What is the significance of the contact finish difference between tin and gold?

A: Contact finish affects corrosion resistance and mating force characteristics. Tin finish (Molex 0702800733) provides cost efficiency for general applications. Gold finish (TE Connectivity and Amphenol ICC substitutes) offers superior corrosion resistance and lower contact resistance, beneficial in high-reliability or harsh environments.

Q: Why does the Amphenol ICC 77313-124-50LF have a higher operating temperature range?

A: The BERGSTIK® series uses phosphor bronze contact material and thermoplastic insulation rated to -65°C to 130°C, compared to the Molex part's unspecified range. This extended range reflects material selection and design optimization for thermal performance.

Q: Are all substitute parts RoHS compliant?

A: Yes. All three substitutes meet RoHS compliance requirements. The Molex 0702800733 and TE Connectivity 87346-4 are ROHS3 compliant. TE Connectivity 7-146252-5 and Amphenol ICC 77313-124-50LF are RoHS compliant. All meet MSL 1 (Unlimited) moisture sensitivity requirements.

Q: Can I mix the Molex original part with substitute parts in the same assembly?

A: Yes. All parts maintain identical mating pitch, position count, and push-pull fastening, allowing mixed use within the same connector system. However, consistent contact finish and material selection across a single mated pair is recommended to avoid galvanic corrosion in high-reliability applications.

Q: Which substitute part is best for automotive applications?

A: All three substitutes are suitable for automotive use. The Amphenol ICC 77313-124-50LF offers the widest operating temperature range (-65°C to 130°C) and includes REACH compliance documentation, making it optimal for automotive thermal cycling requirements.