Molex 0391000910 Eurostyle Terminal Strip Connector - Equivalent & Substitute Parts

Part Overview

The Molex 0391000910 is a 10-circuit Eurostyle terminal strip connector with 0.315" (8.00mm) pitch spacing, designed for chassis and panel mounting applications. This component features screw-type termination on the top and a closed bottom configuration with enclosed barrier protection. The part is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system maintenance and new design implementations where legacy compatibility is required.

Substiute Parts

0391000910

MolexIn Stock: 7560391000910 Datasheet

Current PartRFQ

1-1776293-0

TE Connectivity AMP ConnectorsIn Stock: 23081-1776293-0 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Molex 0391000910 is determined by strict alignment of the following critical parameters:

Primary Matching Criteria (Non-Negotiable):

• Terminal block type: Eurostyle Terminal Strip
• Number of circuits: 10
• Pitch spacing: 0.315" (8.00mm)
• Number of rows: 2
• Wire gauge compatibility: 12-22 AWG
• Top termination method: Screws
• Bottom termination: Closed
• Barrier configuration: Enclosed
• Insulation material: Polyamide (PA66), Nylon 6/6
• Flammability rating: UL94 V-2
• Mounting type: Chassis, Panel

Secondary Parameters (Allowable Variation):

• Current rating: Substitute must meet or exceed 20A
• Voltage rating: Substitute must meet or exceed 300V
• Operating temperature range: Substitute must support minimum 100°C
• RoHS and regulatory compliance: Substitute must maintain ROHS3 compliance

The TE Connectivity AMP Connectors part 1-1776293-0 meets all primary matching criteria and exceeds secondary parameter requirements, qualifying it as a direct functional equivalent.

Parameter Comparison

Engineering Selection Recommendations

The TE Connectivity AMP Connectors 1-1776293-0 qualifies as a direct functional substitute for the obsolete Molex 0391000910 based on the following engineering criteria:

Mechanical and Electrical Compatibility: All primary dimensional and functional parameters align identically, including circuit count, pitch spacing, row configuration, wire gauge acceptance, and termination methods. The substitute connector maintains the same Eurostyle terminal strip architecture with enclosed barrier protection and screw-type top termination.

Performance Enhancement: The TE Connectivity substitute provides improved current-carrying capacity (30A versus 20A) and extended operating temperature range (-35°C to 100°C versus 100°C maximum), delivering superior performance margins for the same application envelope.

Regulatory and Compliance Status: Both components maintain ROHS3 compliance and UL94 V-2 flammability certification. The substitute is classified as active product status, ensuring ongoing availability and supply chain continuity compared to the obsolete Molex part.

Voltage Rating Consideration: The TE Connectivity substitute operates at 250V maximum versus the original 300V rating. Applications requiring the full 300V rating must evaluate whether the 250V specification of the substitute meets system voltage requirements. For applications operating below 250V, this parameter presents no constraint.

Frequently Asked Questions (FAQ)

Q: Can the TE Connectivity 1-1776293-0 be used as a direct replacement for the Molex 0391000910 in existing assemblies?

A: Yes, for applications operating at or below 250V. The substitute maintains identical mechanical dimensions, pitch spacing, circuit count, and termination methods. Physical mounting and wire connection procedures remain unchanged. Verify that your application voltage does not exceed 250V before implementation.

Q: What is the significance of the voltage rating difference (300V versus 250V)?

A: The Molex original supports 300V maximum, while the TE Connectivity substitute supports 250V maximum. This difference is relevant only for applications operating at voltages between 250V and 300V. For standard industrial applications operating at 120V, 240V, or lower, this parameter does not affect substitution eligibility.

Q: Are the physical dimensions and mounting footprints identical?

A: Yes. Both connectors share the same 0.315" (8.00mm) pitch spacing, 10-circuit configuration, 2-row arrangement, and chassis/panel mounting interface. No PCB layout or mechanical redesign is required for substitution.

Q: Does the TE Connectivity substitute accept the same wire gauge range?

A: Yes. Both connectors accept 12-22 AWG wire gauge, ensuring compatibility with existing wiring harnesses and termination procedures.

Q: What is the advantage of the TE Connectivity substitute's higher current rating (30A versus 20A)?

A: The 30A rating provides additional safety margin and allows the connector to handle higher current loads without thermal stress. For applications originally designed for 20A, this enhancement improves reliability and thermal performance.

Q: Are both components RoHS compliant?

A: Yes. Both the Molex 0391000910 and TE Connectivity 1-1776293-0 are ROHS3 compliant, meeting environmental and regulatory requirements for electronic component manufacturing and use.

Q: What is the product status difference, and why does it matter?

A: The Molex part is classified as obsolete, indicating discontinued manufacturing and limited availability. The TE Connectivity substitute is active product, ensuring ongoing supply, technical support, and manufacturing consistency for future procurement needs.