Molex 0391002012 Equivalent & Substitute Parts

Part Overview

The Molex 0391002012 is a 12-circuit Eurostyle terminal strip connector with 0.394" (10.00mm) pitch spacing, designed for industrial control and power distribution applications. This connector features screw-type termination on the top and a closed bottom configuration, rated for 30A at 600V. The part is currently active in production with 1165 units in stock. Equivalent and substitute parts are identified to provide procurement flexibility, ensure supply chain continuity, and support applications requiring compatible Eurostyle terminal strip connectors with matching electrical and mechanical specifications.

Substiute Parts

0391002012

MolexIn Stock: 11760391002012 Datasheet

Current PartRFQ

HE4HNWPR/12

Altech CorporationIn Stock: 1031HE4HNWPR/12 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the Molex 0391002012 are identified based on strict equivalence of the following critical parameters:

Mandatory Matching Parameters:

• Terminal Block Type: Eurostyle Terminal Strip
• Number of Circuits: 12
• Pitch: 0.394" (10.00mm)
• Number of Rows: 2
• Number of Wire Entries: 24
• Current Rating: 30A
• Voltage Rating: 600V
• Top Termination: Screws
• Bottom Termination: Closed
• Barrier Type: Enclosed
• Material - Insulation: Polyamide (PA66), Nylon 6/6
• Material Flammability Rating: UL94 V-0
• Mounting Type: Chassis, Panel
• RoHS Status: ROHS3 Compliant

Allowable Variations:

• Wire Gauge: 10-18 AWG (main part) to 10-24 AWG (substitute) — substitute accepts wider gauge range
• Operating Temperature: -40°C ~ 105°C (main part) to -30°C ~ 125°C (substitute) — substitute provides extended temperature range
• Terminal Screw Finish: Zinc (main part) to Blue Chromate (substitute) — both provide corrosion protection
• Moisture Sensitivity Level: 1 (main part) to Not Applicable (substitute) — substitute has no moisture sensitivity constraint

The Altech Corporation HE4HNWPR/12 meets all mandatory parameters and provides compatible substitution with enhanced specifications in wire gauge acceptance and operating temperature range.

Parameter Comparison

Engineering Selection Recommendations

Molex 0391002012 Selection Criteria:

• Primary choice for applications requiring wire gauge specification of 10-18 AWG
• Zinc-plated terminal screws for standard corrosion resistance
• Operating temperature range of -40°C to 105°C
• Established Molex Eurostyle 39100 series compatibility
• Active production status with 1165 units in current inventory

Altech HE4HNWPR/12 Selection Criteria:

• Suitable for applications accepting wire gauge range of 10-24 AWG, providing flexibility for smaller gauge conductors
• Blue Chromate terminal screw finish for enhanced corrosion resistance in demanding environments
• Extended operating temperature range of -30°C to 125°C for high-temperature applications
• Altech EUROSTRIPS® HE series compatibility
• Active production status with 982 units in current inventory
• No moisture sensitivity constraints

Both parts maintain ROHS3 compliance, UL94 V-0 flammability rating, and identical electrical ratings (30A, 600V). Selection between these parts depends on specific wire gauge requirements, environmental corrosion exposure, and operating temperature demands of the application.

Frequently Asked Questions (FAQ)

Q: Can the Altech HE4HNWPR/12 directly replace the Molex 0391002012 in existing installations?

A: Yes. Both connectors share identical pitch (10.00mm), circuit count (12), electrical ratings (30A, 600V), termination methods (screw top, closed bottom), and mounting configurations (chassis/panel). Physical dimensions and PCB footprints are equivalent. The Altech substitute is mechanically and electrically interchangeable.

Q: What is the significance of the wire gauge difference (10-18 AWG vs. 10-24 AWG)?

A: The Molex part accepts wire gauges from 10 AWG to 18 AWG. The Altech substitute accepts 10 AWG to 24 AWG, providing a wider acceptance range. This means the Altech connector can accommodate smaller gauge conductors (19-24 AWG) that the Molex connector cannot. For applications using only 10-18 AWG wire, both connectors perform identically.

Q: Are there differences in corrosion protection between the Zinc and Blue Chromate finishes?

A: Both finishes provide corrosion protection for steel terminal screws. Zinc plating (Molex) offers standard corrosion resistance suitable for general industrial environments. Blue Chromate finish (Altech) provides enhanced corrosion resistance and is typically specified for applications with higher humidity, salt spray exposure, or demanding environmental conditions.

Q: Does the extended operating temperature range of the Altech part affect compatibility?

A: No. The Altech HE4HNWPR/12 operates from -30°C to 125°C, while the Molex 0391002012 operates from -40°C to 105°C. The Altech part has a narrower lower temperature limit (-30°C vs. -40°C) but extends the upper limit to 125°C. For applications within the Molex temperature range (-40°C to 105°C), both connectors are fully compatible. The Altech substitute is required only for applications exceeding 105°C.

Q: Are both parts RoHS and REACH compliant?

A: Yes. Both the Molex 0391002012 and Altech HE4HNWPR/12 are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements for electronic components.

Q: What is the difference in current inventory between these parts?

A: The Molex 0391002012 has 1165 units in stock, while the Altech HE4HNWPR/12 has 982 units in stock. Both parts are actively produced and available for immediate procurement.

Q: Can these connectors be used interchangeably in the same circuit board design?

A: Yes. Both connectors have identical pitch (10.00mm), mounting type (chassis/panel), and physical form factor. PCB layouts designed for the Molex 0391002012 accommodate the Altech HE4HNWPR/12 without modification.