Molex 0395350508 Terminal Block Header – Equivalent & Substitute Parts

Part Overview

The Molex 0395350508 is an 8-position vertical terminal block header with 5.08mm pitch, designed for through-hole solder mounting applications. This component belongs to the Eurostyle ESE 39535 series and is classified as active inventory. The need for equivalent and substitute parts arises from supply chain considerations, design flexibility, and application-specific requirements where alternative manufacturers' offerings meet the same electrical and mechanical specifications.

Substiute Parts

0395350508

MolexIn Stock: 7260395350508 Datasheet

Current PartRFQ

1776948

Phoenix ContactIn Stock: 10081776948 Datasheet

MFR RecommendedRFQ

1777138

Phoenix ContactIn Stock: 16691777138 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Molex 0395350508 is determined by the following critical parameters:

Primary Matching Criteria:

• Number of positions: 8
• Header type: Male pins, shrouded (4 side)
• Termination style: Solder
• Mounting type: Through hole
• Material flammability rating: UL94 V-0
• RoHS compliance: ROHS3 Compliant

Secondary Compatibility Factors:

• Pitch tolerance: 5.08mm (0.200") or 5.00mm (0.197") within mechanical tolerance
• Voltage rating: Minimum 300 V UL
• Current rating: Minimum 12 A
• Operating temperature range: Must encompass application requirements
• Contact tail length and insulation height: Physical fit within PCB design

The two substitute parts identified—Phoenix Contact 1776948 and 1777138—satisfy the primary matching criteria. Both are active products with ROHS3 compliance and UL94 V-0 flammability ratings. The 1777138 maintains identical 5.08mm pitch, while the 1776948 operates at 5.00mm pitch, representing a minor mechanical variation within standard tolerance ranges for terminal block applications.

Parameter Comparison

Engineering Selection Recommendations

Phoenix Contact 1777138 (Primary Substitute): This part represents the closest electrical and mechanical equivalent to the Molex 0395350508. It maintains identical 5.08mm pitch, matching PCB footprint requirements without design modification. Both parts carry active product status, ROHS3 compliance, and UL94 V-0 flammability certification. The 1777138 operates at 12 A UL current rating versus the Molex 15 A rating; applications requiring the full 15 A capacity must account for this reduction. Voltage rating and operating temperature specifications are compatible with the original part.

Phoenix Contact 1776948 (Secondary Substitute): This part operates at 5.00mm pitch, a 0.08mm deviation from the Molex specification. This pitch difference requires PCB footprint verification before implementation. The 1776948 shares identical electrical certifications (ROHS3, UL94 V-0) and active product status. Current and voltage ratings match the 1777138. Selection of this part is appropriate only when PCB layout accommodates the 5.00mm pitch or when design flexibility permits footprint adjustment.

Both substitute parts are suitable for applications where the Molex 0395350508 is unavailable, provided that current requirements do not exceed 12 A and pitch tolerance is verified against PCB design specifications.

Frequently Asked Questions (FAQ)

Q: Can Phoenix Contact 1777138 be used as a direct replacement for Molex 0395350508? A: Yes, for applications operating at 12 A or below. The 1777138 maintains identical 5.08mm pitch and shares all critical certifications (ROHS3, UL94 V-0). The primary difference is the reduced current rating (12 A versus 15 A). If your application requires the full 15 A capacity, the 1777138 is not suitable.

Q: What is the pitch difference between Molex 0395350508 and Phoenix Contact 1776948? A: The Molex part operates at 0.200" (5.08mm) pitch, while the Phoenix Contact 1776948 operates at 0.197" (5.00mm) pitch. This 0.08mm difference requires PCB footprint verification. If your PCB is designed for 5.08mm spacing, the 1776948 may not fit without layout modification.

Q: Are all three parts RoHS compliant? A: Yes. The Molex 0395350508 and both Phoenix Contact substitutes (1777138 and 1776948) are ROHS3 compliant and carry UL94 V-0 flammability ratings, meeting current environmental and safety standards.

Q: What is the contact tail length difference, and does it affect PCB mounting? A: The Molex part has a 0.150" (3.81mm) contact tail length, while both Phoenix Contact substitutes have 0.154" (3.90mm) tail length. This 0.004" difference is within standard PCB through-hole tolerance and does not affect mounting compatibility.

Q: Can I use Phoenix Contact 1776948 if my PCB is designed for 5.08mm pitch? A: No, without PCB modification. The 1776948 operates at 5.00mm pitch. Using it in a 5.08mm footprint will result in misalignment and potential contact failure. PCB layout must be adjusted to accommodate 5.00mm spacing, or the 1777138 should be selected instead.

Q: What are the key parameters that determine substitution eligibility? A: Substitution is determined by: 8-position count, male pin configuration with 4-side shrouding, solder termination, through-hole mounting, UL94 V-0 flammability rating, and ROHS3 compliance. Pitch, current rating, and contact tail length must be verified against specific application requirements and PCB design specifications.