Phoenix Contact 1843237 Terminal Block Header - Equivalent & Substitute Parts

Part Overview

The Phoenix Contact 1843237 is a 3-position terminal block header with male pins, shrouded on 4 sides, designed for vertical through-hole mounting with 4.6mm pitch. This component is part of the COMBICON MCV series and is actively manufactured. Terminal block headers are essential interconnection components in industrial control systems, power distribution, and signal routing applications where reliable, field-replaceable connections are required. Equivalent parts may be needed due to supply chain considerations, regional availability, or specific application requirements while maintaining electrical and mechanical compatibility.

Substiute Parts

1843237

Phoenix ContactIn Stock: 9721843237 Datasheet

Current PartRFQ

0395056003

MolexIn Stock: 23440395056003 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution compatibility for the Phoenix Contact 1843237 is determined by the following critical parameters:

• Position Count & Pitch: 3 positions at 0.138" (4.60mm) spacing
• Header Configuration: Male pins with 4-side shrouding
• Mounting Method: Vertical through-hole solder termination
• Electrical Ratings: 8 A current capacity and 300 V voltage rating (UL standard)
• Flammability Compliance: UL94 V-0 material rating
• Regulatory Status: ROHS3 compliance and active product status

The Molex 0395056003 (Eurostyle ESE 39505 series) meets all critical substitution criteria. Both components share identical position count, pitch, header type, mounting orientation, termination method, and electrical ratings. Both maintain UL94 V-0 flammability compliance and ROHS3 regulatory status, confirming functional and mechanical interchangeability.

Parameter Comparison

Engineering Selection Recommendations

Both the Phoenix Contact 1843237 and Molex 0395056003 are active products with full ROHS3 compliance and UL94 V-0 flammability certification. Selection between these components should be based on:

• Supply Chain Availability: Molex 0395056003 currently maintains higher inventory (2270 pcs vs. 906 pcs)
• Regulatory Requirements: Both components satisfy identical compliance standards for industrial applications
• Application Continuity: Either component provides equivalent electrical performance and mechanical fit for existing designs

No additional testing or design modification is required when substituting between these parts, as all critical electrical, mechanical, and regulatory parameters are identical.

Frequently Asked Questions (FAQ)

Q: Can the Molex 0395056003 directly replace the Phoenix Contact 1843237 in existing designs?

A: Yes. Both components share identical position count (3), pitch (4.60mm), header configuration (male pins, 4-side shrouded), mounting method (vertical through-hole), and electrical ratings (8 A, 300 V UL). No PCB layout or connector modifications are required.

Q: Are there differences in housing material between these parts?

A: The Phoenix Contact 1843237 uses Polybutylene Terephthalate (PBT), while the Molex 0395056003 uses Polyamide (PA66, Nylon 6/6). Both materials meet UL94 V-0 flammability requirements and are suitable for the specified electrical and thermal operating conditions.

Q: Do both parts meet the same regulatory standards?

A: Yes. Both components are ROHS3 compliant and carry UL94 V-0 material flammability certification. The Molex part is REACH Affected while the Phoenix Contact part is REACH Unaffected; however, both satisfy applicable regulatory requirements for their respective markets.

Q: What is the contact tail length specification for both parts?

A: Both components have a contact tail length of 0.138" (4.60mm), ensuring identical solder pad spacing and through-hole alignment on PCBs designed for either part.

Q: Are there operating temperature differences between these substitutes?

A: The Molex 0395056003 specifies an operating temperature range of -40°C to 105°C. The Phoenix Contact 1843237 does not provide an explicit operating temperature specification in the available data. Both components are suitable for standard industrial control applications within typical environmental conditions.