Molex 0391001202 Eurostyle Terminal Strip - Equivalent & Substitute Parts

Part Overview

The Molex 0391001202 is a 2-circuit Eurostyle terminal strip connector with 0.472" (12.00mm) pitch spacing, designed for chassis and panel mounting applications. This component features screw-type termination with a 40A current rating and 600V voltage rating, supporting wire gauges from 8-20 AWG. The part is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system maintenance and new design implementations.

Substiute Parts

0391001202

MolexIn Stock: 11090391001202 Datasheet

Current PartRFQ

0391002202

MolexIn Stock: 20550391002202 Datasheet

DirectRFQ

1776303-2

TE Connectivity AMP ConnectorsIn Stock: 8201776303-2 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Molex 0391001202 is determined by the following critical parameters:

Primary Compatibility Criteria:

• Terminal block type: Eurostyle Terminal Strip
• Number of circuits: 2
• Pitch spacing: 0.472" (12.00mm)
• Number of rows: 2
• Number of wire entries: 4
• Top termination method: Screws
• Bottom termination: Closed
• Barrier type: Enclosed
• Mounting type: Chassis, Panel

Electrical Performance Criteria:

• Current rating: minimum 40A
• Voltage rating: minimum 600V
• Wire gauge compatibility: 8-20 AWG or broader range
• Operating temperature: minimum 100°C

Regulatory & Material Criteria:

• Insulation material: Polyamide (PA66), Nylon 6/6
• RoHS compliance status
• Moisture sensitivity level: 1 (Unlimited)

The identified substitute parts maintain these core parameters while offering improvements in product status, temperature range, or flammability rating.

Parameter Comparison

Engineering Selection Recommendations

Molex 0391002202 (Direct Manufacturer Alternative)

The Molex 0391002202 is the primary substitute for the obsolete 0391001202. Both parts share identical mechanical and electrical specifications, including 2-circuit configuration, 0.472" pitch, 40A current rating, and 600V voltage rating. The 0391002202 offers active product status with extended operating temperature range (-40°C to 105°C) and improved flammability rating (UL94 V-0). Both parts maintain ROHS3 compliance and identical insulation material composition. This substitute provides direct functional equivalence with enhanced reliability characteristics.

TE Connectivity 1776303-2 (Cross-Manufacturer Alternative)

The TE Connectivity 1776303-2 provides cross-manufacturer compatibility with identical mechanical parameters: 2-circuit configuration, 0.472" pitch, 2-row arrangement, and screw termination. This part supports an expanded wire gauge range (8-22 AWG) and delivers higher current capacity (50A). However, the voltage rating is reduced to 250V, which represents a significant electrical parameter deviation. The 1776303-2 maintains active product status and RoHS compliance. Selection of this alternative requires confirmation that the 250V voltage rating is sufficient for the intended application.

Frequently Asked Questions (FAQ)

Q: Can the Molex 0391002202 be used as a direct replacement for the 0391001202?

A: Yes. Both parts are Molex Eurostyle terminal strips with identical circuit count (2), pitch spacing (0.472"), current rating (40A), voltage rating (600V), and wire gauge support (8-20 AWG). The 0391002202 is the active production equivalent with improved temperature range and flammability rating.

Q: What is the primary limitation of the TE Connectivity 1776303-2 as a substitute?

A: The voltage rating is 250V, compared to 600V for the original part. Applications requiring 600V operation cannot use this substitute. The current rating is higher (50A), and wire gauge range is expanded (8-22 AWG), but voltage compatibility must be confirmed before selection.

Q: Are all three parts mechanically interchangeable?

A: Yes, regarding mounting and physical form factor. All three parts feature identical pitch spacing (0.472"), circuit count (2), row configuration (2), and screw-type termination. Mechanical installation compatibility is confirmed across all three options.

Q: What compliance certifications apply to these substitutes?

A: The Molex 0391002202 carries ROHS3 compliance. The TE Connectivity 1776303-2 carries RoHS compliance. Both parts maintain UL94 flammability ratings and are suitable for industrial terminal block applications. Moisture sensitivity level is 1 (Unlimited) for all parts.

Q: Does packaging affect substitution eligibility?

A: Packaging format (bulk versus other configurations) does not affect electrical or mechanical compatibility. Part selection should be based on electrical parameters, mechanical form factor, and regulatory compliance status rather than packaging type.