Phoenix Contact 1805643 Terminal Block Header - Equivalent & Substitute Parts

Part Overview

The Phoenix Contact 1805643 is a 4-position terminal block header with male pins and partial shroud, designed for vertical through-hole mounting with 5.00mm pitch spacing. This component is classified as obsolete, making identification of suitable substitute parts essential for ongoing design support and procurement continuity. The part operates at 12A (IEC) and 600V (IEC), with solder termination and polyamide housing rated UL94 V-0.

Substiute Parts

1805643

Phoenix ContactIn Stock: 8451805643 Datasheet

Current PartRFQ

1933202

Phoenix ContactIn Stock: 156241933202 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 1805643 is determined by the following critical parameters:

• Position count and pitch: Must maintain 4 positions at 0.197" (5.00mm) spacing to ensure PCB footprint compatibility
• Header orientation and mounting: Must be vertical through-hole to match existing board layouts
• Termination method: Must use solder termination for compatibility with assembly processes
• Electrical ratings: Must support minimum 12A current and 600V voltage per IEC standards
• Housing material and flammability: Must use polyamide construction with UL94 V-0 rating for safety compliance
• Series compatibility: COMBICON PST series maintains mechanical and electrical interchangeability

The substitute part 1933202 meets these core requirements with the following distinction: it features an unshrouded design versus the partial shroud of the original part. This represents a functional equivalent suitable for applications where shroud configuration does not impact circuit protection or assembly requirements.

Parameter Comparison

Engineering Selection Recommendations

The 1933202 is the designated substitute for the obsolete 1805643. Selection should be based on the following engineering criteria:

Product Status: The 1933202 carries active product status, ensuring ongoing manufacturer support, availability, and compliance updates. The 1805643 is obsolete and subject to supply discontinuation.

Compliance and Certifications: Both parts maintain UL94 V-0 flammability rating and polyamide housing construction. The 1933202 carries ROHS3 compliance, representing current regulatory alignment. Both parts are MSL 1 (Unlimited moisture sensitivity), indicating no special storage requirements.

Electrical Performance: The 1933202 meets or exceeds the IEC electrical requirements of the original part (12A at 400V IEC). The substitute also provides UL ratings (16A at 300V), offering additional certification coverage for North American applications.

Mechanical Compatibility: Both parts share identical position count, pitch, orientation, and mounting method. The contact tail length difference (3.60mm versus 4.60mm) is within typical PCB design tolerances for through-hole solder joints. The primary mechanical distinction is the unshrouded versus partial shroud design; this affects only the degree of pin protection during handling and assembly.

Frequently Asked Questions (FAQ)

Q: Will the 1933202 fit the same PCB footprint as the 1805643?

A: Yes. Both parts maintain 4 positions at 5.00mm pitch with vertical through-hole mounting. The contact tail length difference of 0.10mm (3.60mm to 4.60mm) does not affect PCB pad compatibility for standard solder joint design.

Q: What is the functional difference between partial shroud and unshrouded designs?

A: The partial shroud on the 1805643 provides mechanical protection to the pin headers during handling and assembly. The unshrouded 1933202 offers the same electrical and mechanical performance without this protective feature. Selection depends on whether the application requires shroud-based protection or if the circuit board design provides alternative protection.

Q: Are there voltage or current limitations when substituting the 1933202?

A: The 1933202 is rated 12A at 400V per IEC standards, which meets the 12A/600V IEC requirement of the original part. For applications requiring the full 600V IEC rating, verify that 400V IEC operation is acceptable for your circuit design. The substitute also provides UL ratings (16A/300V), suitable for North American regulatory environments.

Q: Is the 1933202 RoHS compliant?

A: Yes. The 1933202 carries ROHS3 compliance, meeting current European Union Restriction of Hazardous Substances regulations. The original 1805643 is RoHS Compliant (RoHS 2). Both parts are suitable for RoHS-regulated applications.

Q: What is the packaging difference between these parts?

A: The 1805643 was supplied in standard packaging (not specified). The 1933202 is supplied in bulk packaging, typical for active production parts. Bulk packaging does not affect component performance or compatibility.

Q: Can I use the 1933202 in new designs?

A: Yes. The 1933202 is the recommended choice for new designs. As an active product with current compliance certifications, it ensures long-term availability and manufacturer support compared to the obsolete 1805643.