Molex 0010321081 Rectangular Connector - Equivalent & Substitute Parts

Part Overview

The Molex 0010321081 is a shrouded vertical header connector with 8 positions at 0.200" (5.08mm) pitch, designed for through-hole mounting with solder termination. This component is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and new design implementations. The SPOX 5281 series connector serves general purpose, industrial, automotive, medical, and telecommunications applications where board-to-cable connectivity is required.

Substiute Parts

0010321081

MolexIn Stock: 11610010321081 Datasheet

Current PartRFQ

0010085081

MolexIn Stock: 11090010085081 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Molex 0010321081 is determined by the following critical parameters:

• Pitch - Mating: 0.200" (5.08mm) — must match exactly for mechanical and electrical compatibility
• Number of Positions: 8 — connector must accommodate identical pin count
• Number of Rows: 1 — single-row configuration required
• Connector Type: Header — must be header-type connector
• Contact Type: Male Pin — pin gender must remain consistent
• Mounting Type: Through Hole — PCB mounting method must be through-hole
• Termination: Solder — solder termination required for assembly compatibility
• Shrouding: Shrouded - 1 Wall — shrouding configuration must match
• Insulation Material: Polyamide (PA66), Nylon 6/6 — material compatibility for thermal and chemical resistance
• Contact Material: Brass — electrical conductivity and corrosion resistance requirements
• Contact Finish: Tin — surface finish for solderability and oxidation resistance

The substitute part Molex 0010085081 meets all critical substitution criteria while offering active product status and improved availability.

Parameter Comparison

Engineering Selection Recommendations

The Molex 0010085081 is the designated manufacturer-recommended substitute for the obsolete Molex 0010321081. Both components maintain identical electrical and mechanical compatibility across all critical substitution parameters: 8-position, single-row configuration at 0.200" (5.08mm) pitch with through-hole solder termination and shrouded design.

The substitute part offers the advantage of active product status, ensuring continued availability and supply chain reliability. Both components comply with ROHS3 and maintain equivalent flammability ratings (UL94 V-2), supporting applications in automotive, industrial, medical, and telecommunications sectors.

Dimensional variations exist in contact geometry and insulation height between the two series. The 0010085081 features circular contact geometry compared to the square contacts of the 0010321081, and reduced insulation height (0.375" versus 0.508"). These differences do not affect electrical performance or mating compatibility but may require PCB layout verification for mechanical clearance in space-constrained applications.

Frequently Asked Questions (FAQ)

Q: Can the Molex 0010085081 directly replace the 0010321081 in existing designs?

A: Yes. Both connectors share identical pitch (0.200"/5.08mm), position count (8), row configuration (1), mounting type (through-hole), and termination method (solder). The substitute meets all critical electrical and mechanical compatibility requirements for direct substitution.

Q: What are the key differences between these two connector series?

A: The primary differences are contact geometry (square versus circular), insulation height (0.508" versus 0.375"), and fastening mechanism (friction lock versus push-pull). The 0010085081 also belongs to the KK508/2599 series rather than the SPOX 5281 series. These differences do not affect electrical performance but may impact PCB layout and mechanical assembly procedures.

Q: Are there compliance or certification differences between the two parts?

A: No. Both components are ROHS3 compliant, carry UL94 V-2 flammability ratings, and are REACH unaffected. Compliance profiles are equivalent.

Q: Why is the 0010321081 listed as obsolete?

A: The SPOX 5281 series has been superseded by the KK508/2599 series in Molex's product portfolio. The 0010085081 represents the current-generation equivalent offering improved availability and supply chain continuity.

Q: Does the difference in contact finish thickness affect performance?

A: Contact finish thickness (200.0µin for 0010321081 versus 100.0µin for 0010085081) does not impact electrical performance or solderability. Both thicknesses provide adequate protection against oxidation and corrosion for the specified applications.

Q: Are there packaging differences between these parts?

A: The 0010321081 is supplied in standard packaging, while the 0010085081 is supplied in bulk packaging. This affects order quantities and handling but does not impact component functionality or compatibility.