Phoenix Contact 5437703 Terminal Block Plug - Equivalent & Substitute Parts

Part Overview

The Phoenix Contact 5437703 is a 16-position terminal block plug with female sockets, 0.138" (4.60mm) pitch, designed for 90° free-hanging in-line applications. This component operates at 8A (IEC/UL) and 320V (IEC) / 300V (UL), accommodating wire gauges from 14-30 AWG (0.2-1.5mm²). The part is classified as obsolete, making identification of active equivalent models essential for ongoing procurement and system maintenance.

Substiute Parts

5437703

Phoenix ContactIn Stock: 8145437703 Datasheet

Current PartRFQ

1863440

Phoenix ContactIn Stock: 9271863440 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Phoenix Contact 5437703 is determined by strict alignment of the following critical parameters:

• Connector Type & Configuration: 16-position plug with female sockets
• Pitch Specification: 0.138" (4.60mm) center-to-center spacing
• Electrical Ratings: Minimum 8A (IEC) and 320V (IEC) capability
• Wire Gauge Compatibility: Support for 14-30 AWG wire range
• Mounting Orientation: 90° free-hanging in-line configuration
• Termination Method: Screw-based wire connection
• Compliance Standards: UL94 V-0 flammability rating and RoHS compliance

The substitute part Phoenix Contact 1863440 meets all critical substitution criteria. Both components share identical position count, pitch, electrical ratings, wire gauge range, mounting type, and flammability classification. Differences in termination mechanism (rising cage clamp vs. standard screw) and housing color do not affect functional interchangeability within the specified electrical and mechanical parameters.

Parameter Comparison

Engineering Selection Recommendations

The Phoenix Contact 1863440 is the qualified substitute for the obsolete 5437703 based on the following engineering criteria:

Product Status & Availability: The 5437703 is classified as obsolete, while the 1863440 maintains active product status with confirmed inventory availability (899 pcs in stock). This transition ensures continued supply chain viability for new designs and system replacements.

Compliance & Certification: Both components maintain UL94 V-0 flammability classification and meet RoHS requirements. The 1863440 carries ROHS3 compliance, representing current regulatory alignment. Both components are classified under ECCN EAR99 and HTSUS 8536.90.4000.

Electrical & Mechanical Equivalence: Identical electrical ratings (8A IEC, 320V IEC, 8A UL, 300V UL), position count (16), pitch (4.60mm), wire gauge support (14-30 AWG), and mounting configuration (90° free-hanging in-line) confirm functional interchangeability.

Termination Mechanism Difference: The 1863440 employs rising cage clamp termination versus the standard screw termination of the 5437703. This represents an engineering enhancement that does not compromise compatibility within the specified electrical and mechanical parameters.

Frequently Asked Questions (FAQ)

Q: Can the Phoenix Contact 1863440 directly replace the 5437703 in existing applications?

A: Yes. Both components share identical electrical ratings (8A/320V IEC), position configuration (16-position), pitch (4.60mm), wire gauge range (14-30 AWG), and mounting orientation (90° free-hanging in-line). The physical and electrical interface remains compatible.

Q: What is the difference between screw termination and rising cage clamp termination?

A: Both termination methods secure wire connections using M2 screws with comparable torque specifications (0.2-0.25 Nm for 5437703; 0.22-0.25 Nm for 1863440). The rising cage clamp mechanism in the 1863440 provides an alternative wire retention design while maintaining equivalent electrical performance.

Q: Are there packaging differences between these components?

A: The 5437703 is listed with unspecified packaging, while the 1863440 is supplied in bulk packaging. This distinction affects procurement and inventory management but does not alter component functionality.

Q: Does the wire gauge range difference (0.2-1.5mm² vs. 0.14-1.5mm²) affect substitution?

A: No. The 1863440 supports a broader minimum wire gauge range (0.14mm² vs. 0.2mm²), making it compatible with all applications supported by the 5437703. The 14-30 AWG specification is identical for both components.

Q: What compliance certifications apply to both components?

A: Both components meet UL94 V-0 flammability requirements and RoHS compliance standards. The 1863440 carries ROHS3 certification, representing current regulatory alignment. Both are classified under ECCN EAR99 for export control purposes.

Q: Why is the 5437703 classified as obsolete?

A: Product obsolescence reflects Phoenix Contact's product lifecycle management. The active 1863440 represents the current equivalent offering within the COMBICON MCVR series, providing continued support for 16-position 4.60mm pitch terminal block plug applications.