8FM-38-0008-02-146 Rectangular Connector Equivalent & Substitute Parts

Part Overview

The 8FM-38-0008-02-146 is an 8-position socket connector manufactured by Preci-Dip, designed for board-to-board applications with 0.100" (2.54mm) pitch spacing. This surface mount, right-angle connector features gold-plated mating contacts and solder termination, operating across -55°C to 125°C. The product maintains Active status with 965 units in current inventory. Substitute parts are identified to provide alternative sourcing options when the primary part is unavailable or when design flexibility permits component selection from qualified manufacturers.

Substiute Parts

8FM-38-0008-02-146

Preci-DipIn Stock: 9878FM-38-0008-02-146 Datasheet

Current PartRFQ

310-43-108-40-023000

Mill-Max Manufacturing Corp.In Stock: 885310-43-108-40-023000 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 8FM-38-0008-02-146 is determined by strict alignment of the following critical parameters:

Mandatory Matching Parameters:

• Number of Positions: 8
• Pitch - Mating: 0.100" (2.54mm)
• Mounting Type: Surface Mount, Right Angle
• Contact Type: Female Socket
• Contact Finish - Mating: Gold
• Termination: Solder
• Current Rating: 3A
• Operating Temperature Range: -55°C ~ 125°C
• Material Flammability Rating: UL94 V-0
• RoHS Compliance: ROHS3 Compliant

The identified substitute part 310-43-108-40-023000 (Mill-Max Manufacturing Corp.) satisfies all mandatory matching parameters. Variations in secondary parameters such as connector designation (Socket vs. Receptacle terminology), insulation height tolerance, contact finish thickness specifications, and packaging format (Bulk vs. Tube) do not preclude substitution when the primary electrical and mechanical characteristics align.

Parameter Comparison

Engineering Selection Recommendations

Both the 8FM-38-0008-02-146 and 310-43-108-40-023000 maintain Active product status and satisfy ROHS3 compliance requirements. Both components are classified as REACH Unaffected and carry EAR99 export classification. The electrical and mechanical specifications align across all critical parameters including current rating, operating temperature range, contact material composition, and flammability rating.

The Mill-Max 310-43-108-40-023000 provides explicit voltage rating specifications (100V, 150VDC) not documented for the Preci-Dip part. The insulation height differs by 0.004" (0.10mm), with the Mill-Max part matching the standard 0.100" (2.54mm) pitch dimension. The Preci-Dip part specifies glass-filled polyester insulation material, while the Mill-Max part uses standard polyester. Contact finish thickness on mating surfaces is equivalent within manufacturing tolerance (29.5µin vs. 30.0µin).

Selection between these parts is determined by application-specific requirements, inventory availability, and packaging preferences (Bulk vs. Tube format).

Frequently Asked Questions (FAQ)

Q: Can the 310-43-108-40-023000 directly replace the 8FM-38-0008-02-146 in existing designs?

A: Yes. Both connectors share identical pitch spacing (0.100"), position count (8), mounting configuration (surface mount right-angle), contact type (female socket), and current rating (3A). The operating temperature range and flammability ratings are equivalent. The 0.004" insulation height difference and packaging format variation do not affect electrical or mechanical compatibility.

Q: What is the difference between "Socket" and "Receptacle" connector terminology?

A: Both terms describe female contact connectors in this product category. The terminology difference reflects manufacturer naming conventions and does not indicate functional or electrical differences. Both parts accept male pins and provide identical mating characteristics.

Q: Does the Mill-Max part's explicit voltage rating affect substitution suitability?

A: The Mill-Max 310-43-108-40-023000 specifies 100V and 150VDC voltage ratings. The Preci-Dip 8FM-38-0008-02-146 does not document voltage specifications in the provided parameters. When voltage rating is a design requirement, the Mill-Max part's documented specifications provide explicit confirmation of suitability. Applications not requiring voltage specification confirmation are unaffected by this parameter difference.

Q: Are there differences in insulation material composition that affect performance?

A: The Preci-Dip part uses glass-filled polyester, while the Mill-Max part uses standard polyester. Both materials meet UL94 V-0 flammability requirements and are suitable for the specified operating temperature range (-55°C to 125°C). Material selection between these options depends on application-specific mechanical or thermal requirements not specified in the provided parameters.

Q: What is the significance of the contact finish thickness specifications?

A: The Preci-Dip part specifies 29.5µin (0.75µm) gold plating on mating contacts, while the Mill-Max part specifies 30.0µin (0.76µm). These values are equivalent within standard manufacturing tolerances and do not affect electrical performance or contact reliability. Both thicknesses provide adequate corrosion protection and conductivity for the 3A current rating.

Q: Does packaging format (Bulk vs. Tube) affect technical compatibility?

A: Packaging format affects inventory management, handling, and ordering quantities but does not affect electrical or mechanical compatibility. The Preci-Dip part is supplied in Bulk packaging, while the Mill-Max part is supplied in Tube packaging. Selection between these options is determined by assembly process requirements and inventory management practices.

Q: Are both parts suitable for high-reliability applications?

A: Both parts maintain Active product status, ROHS3 compliance, and REACH Unaffected classification. Both carry UL94 V-0 flammability ratings and operate across -55°C to 125°C. Moisture Sensitivity Level 1 (Unlimited) indicates no moisture sensitivity constraints. Application-specific reliability requirements should be evaluated against the documented specifications of each part.