Molex 0850420177 96-Position DIN Receptacle Connector - Equivalent & Substitute Parts

Part Overview

The Molex 0850420177 is a 96-position DIN receptacle connector with female sockets, gold-plated contacts, and through-hole solder termination. This component is classified as obsolete, making identification of functionally equivalent substitute parts essential for ongoing system support and procurement planning. The connector is designed for backplane applications requiring high-density interconnection with standardized DIN 41612 mechanical compatibility.

Substiute Parts

0850420177

MolexIn Stock: 9690850420177 Datasheet

Current PartRFQ

09032646829

HARTINGIn Stock: 119609032646829 Datasheet

MFR RecommendedRFQ

650408-4

TE Connectivity AMP ConnectorsIn Stock: 1256650408-4 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the Molex 0850420177 are qualified based on strict electrical and mechanical parameter alignment:

Primary Substitution Criteria:

• Connector type: Receptacle, Female Sockets
• Position count: 96 positions with 64 positions loaded
• Pitch: 0.100" (2.54mm)
• Row configuration: 3 rows
• Style: C
• Level/Class: 2
• Mounting: Through Hole
• Termination: Solder
• Operating temperature: -55°C ~ 125°C
• Flammability: UL94 V-0
• MSL: 1 (Unlimited)

Both identified substitute parts meet these core parameters. Differences in contact finish thickness, insulation material composition, and regulatory compliance status are documented in the parameter comparison table below.

Parameter Comparison

Engineering Selection Recommendations

HARTING 09032646829 is the primary substitute for the Molex 0850420177. This part maintains active product status, achieves ROHS3 compliance, and carries REACH Unaffected designation. The connector meets all core mechanical and electrical parameters. The insulation material differs (PCT versus polyester thermoplastic), but both materials satisfy UL94 V-0 flammability requirements. Contact finish thickness is not specified for the HARTING part; however, the gold or gold-palladium finish option provides equivalent or superior corrosion resistance compared to the original 24.0µin specification.

TE Connectivity 650408-4 is a secondary substitute option. This part maintains active product status and meets all core mechanical and electrical parameters. However, it carries RoHS non-compliant and REACH Affected designations, which may restrict use in applications subject to European Union regulatory requirements. The contact finish thickness of 30.0µin exceeds the original specification, providing enhanced durability. The Eurocard series designation indicates compatibility with the same mechanical form factor and DIN 41612 standard.

For applications requiring regulatory compliance with current EU directives, HARTING 09032646829 is the recommended selection. For applications without such constraints, TE Connectivity 650408-4 remains functionally equivalent.

Frequently Asked Questions (FAQ)

Q: Can the HARTING 09032646829 directly replace the Molex 0850420177 in existing designs?

A: Yes. Both connectors share identical mechanical dimensions (96 positions, 0.100" pitch, 3-row configuration, Style C), identical electrical class (Level 2), and identical operating temperature range (-55°C ~ 125°C). Through-hole solder termination and PCB mounting are identical. The connectors are mechanically and electrically interchangeable.

Q: What is the significance of the contact finish thickness difference between the Molex and TE Connectivity parts?

A: The TE Connectivity 650408-4 specifies 30.0µin (0.76µm) contact finish thickness compared to the Molex 24.0µin (0.61µm). Both thicknesses provide adequate gold plating for connector durability and electrical performance. The thicker TE Connectivity plating offers extended service life in high-cycle mating applications.

Q: Why does the HARTING part specify "Gold or Gold-Palladium" finish while the original specifies only Gold?

A: The HARTING specification allows either gold or gold-palladium contact finish. Both finishes meet the same electrical and corrosion resistance requirements. Gold-palladium is an alternative formulation that provides equivalent performance characteristics. Actual finish composition is determined at manufacturing and does not affect interchangeability.

Q: What does "64 positions loaded" mean when the connector has 96 positions?

A: The connector has 96 total position cavities in the insulator body, but only 64 positions are populated with electrical contacts. This is a standard configuration for DIN 41612 Style C connectors. All substitute parts maintain this same 64-loaded-of-96-total configuration.

Q: Are there compliance differences between the substitute parts?

A: Yes. The HARTING 09032646829 is ROHS3 Compliant and REACH Unaffected. The TE Connectivity 650408-4 is RoHS non-compliant and REACH Affected. For applications subject to EU regulatory requirements, HARTING is the appropriate selection. For legacy systems or applications without such constraints, TE Connectivity remains functionally equivalent.

Q: What is the significance of MSL 1 (Unlimited) rating?

A: MSL 1 (Unlimited) indicates that the connector has no moisture sensitivity limitations and requires no special handling, storage, or baking procedures prior to soldering. All three parts share this rating, simplifying procurement and assembly processes.