Weidmüller 1803040000 Terminal Block Plug - Equivalent & Substitute Parts

Part Overview

The Weidmüller 1803040000 is a 2-position terminal block plug with female sockets, 0.200" (5.08mm) pitch, designed for 180° free-hanging in-line applications. This component belongs to the Omnimate BL series and features screw-clamping termination with tin-plated copper alloy contacts. The part is currently listed as obsolete, making identification of suitable substitutes essential for ongoing system maintenance and new designs requiring compatible connectivity solutions.

Substiute Parts

1803040000

WeidmüllerIn Stock: 7601803040000 Datasheet

Current PartRFQ

1944330000

WeidmüllerIn Stock: 14301944330000 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Weidmüller 1803040000 is determined by the following critical parameters:

Mandatory Matching Parameters:

• Manufacturer: Weidmüller
• Series: Omnimate BL
• Number of Positions: 2
• Pitch: 0.200" (5.08mm)
• Type: Plug, Female Sockets
• Mounting Type: Free Hanging (In-Line)
• Plug Wire Entry: 180°
• Termination Style: Screw - Clamping Yoke (Tension Sleeve)

Allowable Variation Parameters:

• Current Rating (IEC): Equal to or greater than 19A
• Voltage Rating (IEC): Equal to or greater than 400V
• Wire Gauge Range: Equal to or greater than 12-26 AWG (0.2-2.5mm²)
• Insulation Height: Minor variations acceptable within mechanical envelope constraints

The substitute part 1944330000 maintains all mandatory matching parameters while providing enhanced electrical ratings and expanded wire gauge compatibility, making it a direct functional equivalent.

Parameter Comparison

Engineering Selection Recommendations

The Weidmüller 1944330000 is the direct substitute for the obsolete 1803040000. Both components are manufactured by Weidmüller within the Omnimate BL series and share identical mechanical and electrical interface specifications. The substitute part maintains full backward compatibility while offering the following advantages:

Active Product Status: Part 1944330000 is currently in active production, ensuring long-term availability and supply chain continuity compared to the obsolete 1803040000.

Enhanced Electrical Ratings: The substitute provides increased current capacity (23A IEC vs. 19A IEC; 20A UL vs. 15A UL), supporting a broader range of circuit applications without requiring design modifications.

Expanded Wire Gauge Compatibility: Support for 12-30 AWG (0.2-4mm²) versus 12-26 AWG (0.2-2.5mm²) accommodates larger conductor cross-sections, providing flexibility for higher-current applications.

Regulatory Compliance: Both parts maintain identical RoHS and REACH compliance status, with UL94 V-0 flammability rating, ensuring regulatory requirements are met in either configuration.

Mechanical Compatibility: Identical screw size (M2.5), torque specification (0.4-0.5 Nm), wire strip length (7mm), and mounting characteristics ensure direct mechanical interchangeability without mechanical redesign.

Frequently Asked Questions (FAQ)

Q: Can the 1944330000 be used as a direct replacement for the 1803040000 in existing installations?

A: Yes. The 1944330000 is mechanically and electrically compatible with the 1803040000. Both components share identical pitch (5.08mm), connector type (2-position plug with female sockets), mounting method (free-hanging in-line), and wire entry orientation (180°). The substitute part can be installed without modification to mating connectors or circuit board layouts.

Q: What are the key differences between these two parts?

A: The primary differences are product status and electrical ratings. The 1944330000 is an active product with enhanced current ratings (23A IEC, 20A UL) and expanded wire gauge support (12-30 AWG) compared to the obsolete 1803040000 (19A IEC, 15A UL; 12-26 AWG). These enhancements provide greater application flexibility without compromising compatibility.

Q: Are there any packaging differences between the main part and substitute?

A: The 1803040000 is supplied with standard packaging, while the 1944330000 is supplied in bulk packaging. This difference affects order quantities and storage considerations but does not impact component functionality or performance.

Q: Will the expanded wire gauge range of the 1944330000 affect compatibility with existing wire sizes?

A: No. The 1944330000 maintains full compatibility with the original wire gauge range (12-26 AWG / 0.2-2.5mm²) while additionally supporting larger conductors (27-30 AWG / 2.5-4mm²). Existing installations using the original wire gauge specifications will function identically.

Q: Are both parts RoHS and REACH compliant?

A: Yes. Both the 1803040000 and 1944330000 are RoHS compliant and REACH unaffected, meeting current environmental and regulatory requirements for electronic component manufacturing and use.

Q: What is the inventory status of the substitute part?

A: The 1944330000 has 1,355 pieces in stock as new original inventory, compared to 733 pieces of the obsolete 1803040000. The substitute part's active product status and higher inventory level provide improved supply chain reliability for ongoing procurement.