Phoenix Contact 1900125 Terminal Block Header - Equivalent & Substitute Parts

Part Overview

The Phoenix Contact 1900125 is a 7-position terminal block header with male pins, shrouded on four sides, featuring a 0.197" (5.00mm) pitch and 90° right-angle through-hole mounting. This component is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system maintenance and new design implementations.

The primary reason for identifying substitute parts is the obsolete product status of the 1900125. Active equivalent models provide continuity of supply while maintaining electrical and mechanical compatibility within the specified parameter ranges.

Substiute Parts

1900125

Phoenix ContactIn Stock: 8081900125 Datasheet

Current PartRFQ

1776744

Phoenix ContactIn Stock: 10031776744 Datasheet

SimilarRFQ

1836735

Phoenix ContactIn Stock: 7301836735 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the Phoenix Contact 1900125 are identified based on strict electrical and mechanical parameter alignment:

Critical Matching Parameters:

• 7 positions with 0.197" (5.00mm) pitch spacing
• 90° right-angle orientation
• Male pin configuration with 4-side shrouding
• Through-hole mounting capability
• Minimum current rating of 12A (IEC) / 15A (UL)
• Minimum voltage rating of 400V (IEC) / 300V (UL)
• Tin contact mating finish
• UL94 V-0 flammability rating

Identified Substitutes:

• Phoenix Contact 1776744 (COMBICON MSTB series)
• Phoenix Contact 1836735 (COMBICON CC series)

Both alternatives meet the core electrical and mechanical requirements while offering active product status and improved supply availability.

Parameter Comparison

Engineering Selection Recommendations

Phoenix Contact 1776744 (COMBICON MSTB Series)

This substitute provides the closest electrical and mechanical alignment to the 1900125. Both components share identical pitch spacing, position count, orientation, and electrical ratings (12A IEC / 15A UL). The primary difference is termination style: the 1776744 uses solder termination versus the press-fit design of the original. The contact tail length is slightly shorter (0.138" vs. 0.165"), which may require PCB layout verification. Active product status ensures ongoing availability. RoHS compliance is maintained.

Phoenix Contact 1836735 (COMBICON CC Series)

This alternative meets core position, pitch, and orientation requirements with active product status. The UL current rating is marginally higher at 16A. However, this part exhibits several parameter deviations: shorter contact tail length (0.079"), reduced insulation height (0.298" vs. 0.339"), different housing material (LCP vs. PBT), black color instead of green, and unspecified flammability rating. These differences require design review to confirm compatibility with existing PCB layouts and thermal/mechanical requirements.

Recommendation Basis:

Selection between 1776744 and 1836735 depends on specific application constraints. The 1776744 is preferred for applications requiring minimal design modification due to closer dimensional alignment. The 1836735 is suitable where the dimensional and material differences are acceptable and where the higher UL current rating provides operational margin.

Frequently Asked Questions (FAQ)

Q: Can the 1900125 be directly replaced with either substitute without PCB modification?

A: The 1776744 is dimensionally closer to the original, with matching insulation height and similar contact tail length, reducing the likelihood of PCB layout conflicts. The 1836735 has significantly shorter contact tail length (0.079" vs. 0.165") and reduced insulation height, which may require PCB trace repositioning or via relocation.

Q: What is the primary difference between the 1776744 and 1836735?

A: The 1776744 uses PBT housing material with dimensions closely matching the original 1900125. The 1836735 uses LCP housing material with shorter overall dimensions and different electrical specifications. Both are electrically rated for the application, but mechanical fit differs.

Q: Are all three parts RoHS compliant?

A: The 1900125 and 1776744 are explicitly RoHS Compliant. The 1836735 is ROHS3 Compliant, which represents a more recent compliance standard. All three meet RoHS requirements.

Q: What is the significance of the termination style difference?

A: The 1900125 uses press-fit termination, while both substitutes use solder termination. Press-fit provides tool-free assembly; solder termination requires reflow or wave soldering processes. This affects assembly methodology but does not impact electrical performance.

Q: Does the color difference between parts affect functionality?

A: Color is a visual identifier only and does not affect electrical or mechanical function. The 1900125 and 1776744 are green; the 1836735 is black. Color selection may be relevant for internal documentation or assembly traceability systems.

Q: What packaging options are available?

A: The 1900125 is supplied in standard packaging. The 1776744 and 1836735 are supplied in bulk packaging, which may affect order quantities and handling procedures.