Molex 0541044696 FFC/FPC Connector - Equivalent & Substitute Parts

Part Overview

The Molex 0541044696 is a 46-position FFC/FPC connector designed for surface mount, right-angle applications with 0.5mm pitch contacts. This connector features zero insertion force (ZIF) operation, slide lock retention, and solder termination for flat flexible cable assemblies. The part is active in production with 818 units currently in stock. Equivalent parts are identified when all critical electrical and mechanical parameters align, enabling direct substitution in applications where the original part number becomes unavailable or inventory constraints require alternative sourcing.

Substiute Parts

0541044696

MolexIn Stock: 8640541044696 Datasheet

Current PartRFQ

0541044631

MolexIn Stock: 10010541044631 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The Molex 0541044631 qualifies as a direct equivalent to the 0541044696 based on alignment of all critical electrical and mechanical parameters. Both parts share identical specifications for position count (46), pitch (0.5mm), mounting configuration (surface mount, right angle), connector type (FFC/FPC contacts, top), termination method (solder), cable thickness (0.30mm), board height (2.00mm), locking mechanism (slide lock), voltage rating (50V), current rating (0.5A), operating temperature range (-20°C to 85°C), mating cycles (20), housing material (Polyamide PA46/Nylon 4/6), contact material (phosphor bronze), and flammability rating (UL94 V-0).

The primary difference between these parts is the contact finish specification: the 0541044696 uses tin bismuth finish, while the 0541044631 uses gold finish with a specified thickness of 3.94µin (0.10µm). Both finishes are compatible with solder termination and provide equivalent electrical performance within the rated parameters. Both parts maintain ROHS3 compliance, unlimited MSL rating, and identical series designation (54104).

Parameter Comparison

Engineering Selection Recommendations

Both the Molex 0541044696 and 0541044631 are active production parts with full ROHS3 compliance and unlimited moisture sensitivity level rating. Selection between these parts is determined by contact finish requirements and application-specific corrosion resistance needs. The tin bismuth finish of the 0541044696 provides standard solder compatibility and cost efficiency. The gold-plated finish of the 0541044631 offers enhanced corrosion resistance and is suitable for applications requiring extended shelf life or exposure to corrosive environments. Both parts maintain identical electrical performance, mechanical dimensions, and thermal operating ranges. Inventory availability should be considered as a secondary factor: the 0541044631 currently has 940 units in stock compared to 818 units for the 0541044696.

Frequently Asked Questions (FAQ)

Q: Can the 0541044631 be used as a direct replacement for the 0541044696 in existing designs?

A: Yes. Both parts are mechanically and electrically identical across all critical parameters including position count, pitch, mounting configuration, voltage and current ratings, and operating temperature range. The contact finish difference (gold versus tin bismuth) does not affect functional compatibility in solder-terminated applications.

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

A: The 0541044696 features tin bismuth contact finish, while the 0541044631 features gold plating at 3.94µin (0.10µm) thickness. Gold finish provides superior corrosion resistance and is preferred for applications with extended storage periods or exposure to humid or corrosive environments. Tin bismuth finish is suitable for standard applications and offers cost advantages. Both finishes are compatible with solder termination.

Q: Are there any PCB layout or assembly process differences when substituting between these parts?

A: No. Both parts share identical mechanical dimensions, board height (2.00mm), pitch (0.5mm), and solder termination specifications. PCB footprints, assembly processes, and reflow profiles remain unchanged.

Q: Do both parts meet the same compliance and certification standards?

A: Yes. Both the 0541044696 and 0541044631 are ROHS3 compliant, carry UL94 V-0 flammability rating, maintain unlimited MSL rating, and are REACH unaffected. Both parts are classified under ECCN EAR99 and HTSUS 8536.69.4051.

Q: What is the difference in mating cycle ratings between these parts?

A: Both parts are rated for 20 mating cycles, indicating identical mechanical durability and connector life expectancy.

Q: How do the housing materials compare between these parts?

A: The 0541044696 housing is specified as Polyamide (PA46), Nylon 4/6. The 0541044631 housing is specified as Polyamide (PA46), Nylon 4/6, Glass Filled. Both materials provide equivalent mechanical strength and thermal stability within the -20°C to 85°C operating range. The glass-filled specification in the 0541044631 provides enhanced dimensional stability and rigidity.