Molex 0873811684 Equivalent & Substitute Parts

Part Overview

The Molex 0873811684 is a 16-position receptacle connector from the Milli-Grid 87381 series, designed for board-to-board applications with 0.079" (2.00mm) pitch spacing. This surface mount connector features gold-plated mating contacts, push-pull fastening, and is rated for 1.9A at 125V. The part is currently active in production with 746 units in stock. Finding equivalent substitute parts is necessary to ensure supply chain flexibility, optimize procurement costs, and maintain design compatibility across manufacturing batches or alternative sourcing scenarios.

Substiute Parts

0873811684

MolexIn Stock: 8010873811684 Datasheet

Current PartRFQ

55510-116TRLF

Amphenol ICC (FCI)In Stock: 485155510-116TRLF Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the Molex 0873811684 is determined by strict alignment of the following critical parameters:

Mechanical Compatibility:

• 16-position receptacle configuration
• 0.079" (2.00mm) mating pitch
• 2-row layout with 0.079" (2.00mm) row spacing
• 0.177" (4.50mm) insulation height
• Surface mount termination with solder contacts
• Push-pull fastening mechanism

Electrical Compatibility:

• Gold-plated mating contacts
• Female socket contact type
• Board-to-board connection style
• Operating temperature range of at least -55°C to 105°C
• Current rating of 1.9A or greater
• Voltage rating of 125V or greater

Regulatory Compliance:

• RoHS compliance status
• MSL rating of 1 or equivalent

The Amphenol ICC (FCI) part number 55510-116TRLF meets all mechanical and electrical substitution criteria. Both connectors share identical pitch spacing, position count, row configuration, insulation height, and mounting methodology. The substitute part exceeds the electrical requirements of the original part with higher current rating (2A vs. 1.9A) and voltage rating (200V vs. 125V), ensuring functional compatibility in the same circuit applications.

Parameter Comparison

Engineering Selection Recommendations

The Amphenol ICC (FCI) 55510-116TRLF is a direct functional substitute for the Molex 0873811684 based on the following engineering criteria:

Mechanical Compatibility: Both connectors share identical mating pitch (0.079"), position count (16), row configuration (2 rows), and insulation height (0.177"). The push-pull fastening mechanism and surface mount solder termination are identical, ensuring PCB layout compatibility without redesign.

Electrical Performance: The substitute part meets or exceeds all electrical specifications. The 2A current rating and 200V voltage rating both exceed the original part's 1.9A and 125V ratings, providing margin for circuit operation. The operating temperature range of -55°C to 125°C encompasses the original specification of -55°C to 105°C.

Regulatory Compliance: Both parts carry RoHS compliance certifications and MSL rating 1 (unlimited moisture sensitivity level), meeting identical environmental and handling requirements. The substitute part carries REACH Affected status compared to the original's REACH Unaffected status; however, this does not affect functional substitution in applications where REACH compliance is not a design constraint.

Packaging Consideration: The original part is supplied in Tray packaging, while the substitute is supplied in Tape & Reel (TR) format. This difference affects procurement and assembly handling but does not impact electrical or mechanical performance.

Frequently Asked Questions (FAQ)

Q: Can the Amphenol ICC 55510-116TRLF be used as a direct replacement for the Molex 0873811684 in existing designs?

A: Yes. Both connectors have identical mating pitch (0.079"), position count (16), row spacing (0.079"), and insulation height (0.177"). The PCB footprint and mating interface are compatible. No circuit redesign is required.

Q: What are the key differences between these two connectors?

A: The primary differences are manufacturer (Molex vs. Amphenol ICC), series designation (Milli-Grid 87381 vs. Minitek 2.00mm), and packaging format (Tray vs. Tape & Reel). The substitute part has higher electrical ratings (2A vs. 1.9A current; 200V vs. 125V voltage) and extended operating temperature range (-55°C to 125°C vs. -55°C to 105°C). Contact finish thickness on mating contacts differs (30.0µin vs. 15.0µin).

Q: Does the Tape & Reel packaging of the substitute part affect compatibility?

A: Tape & Reel packaging affects procurement logistics and automated assembly handling but does not affect the connector's electrical or mechanical performance. Assembly equipment must be compatible with TR format feeding.

Q: Are there any compliance differences between the two parts?

A: Both parts are RoHS compliant and carry MSL rating 1. The substitute part is REACH Affected, while the original is REACH Unaffected. This distinction is relevant only if REACH compliance is a design requirement for your application.

Q: What is the contact finish thickness difference, and does it affect performance?

A: The substitute part has thicker gold plating on mating contacts (30.0µin vs. 15.0µin). Thicker plating generally provides enhanced durability and corrosion resistance, which is beneficial for long-term reliability in harsh environments.

Q: Can I mix Molex and Amphenol ICC connectors in the same assembly?

A: Yes, provided they are mated with compatible plug connectors. Both receptacles have identical mating interfaces (0.079" pitch, 16 positions, 2 rows). Verify that your plug connector is compatible with both receptacle series.