Phoenix Contact 1879751 Terminal Block - Equivalent & Substitute Parts

Part Overview

The Phoenix Contact 1879751 is a 14-position terminal block header with male pins, shrouded on four sides, designed for 0.200" (5.08mm) pitch vertical through-hole applications. This component is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system maintenance and new design implementations where through-hole mounting is required.

Substiute Parts

1879751

Phoenix ContactIn Stock: 11761879751 Datasheet

Current PartRFQ

OSTOQ145450

On Shore Technology Inc.In Stock: 885OSTOQ145450 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Phoenix Contact 1879751 is determined by the following critical parameters:

Position Count & Pitch: The substitute must provide 14 positions at 0.200" (5.08mm) pitch to maintain PCB layout compatibility and connector mating alignment.

Shrouding Configuration: Four-side shrouding is required to match the original design's mechanical protection and polarization features.

Header Orientation & Connector Type: Vertical orientation with male pins ensures compatibility with corresponding female receptacles in the target application.

Electrical Ratings: The substitute must meet or exceed the IEC voltage (200 V minimum) and current (12 A minimum) specifications to ensure safe operation within the original circuit parameters.

Contact Finish & Materials: Tin-plated contacts are specified for corrosion resistance and solderability consistency.

Mounting Compatibility: While the original part uses press-fit through-hole termination, functionally equivalent alternatives may employ solder termination provided the mechanical envelope and pin positioning remain compatible with the PCB footprint.

The On Shore Technology Inc. OSTOQ145450 qualifies as a substitute based on matching position count, pitch, shrouding, orientation, connector type, contact finish, and electrical ratings. The primary difference—solder termination versus press-fit—does not preclude substitution when PCB design accommodates solder-tail insertion.

Parameter Comparison

Engineering Selection Recommendations

The On Shore Technology OSTOQ145450 is the identified substitute for the obsolete Phoenix Contact 1879751. Selection is justified on the following basis:

Product Status: The OSTOQ145450 maintains active production status, ensuring long-term availability and supply chain continuity compared to the obsolete original part.

Compliance & Certifications: The OSTOQ145450 is ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements. Both parts share the same ECCN (EAR99) and HTSUS classification (8536.69.4040).

Electrical & Mechanical Compatibility: Matching position count, pitch, shrouding configuration, and UL voltage rating (300 V) ensure functional equivalence within the original circuit design parameters.

Termination Consideration: The transition from press-fit to solder termination requires PCB footprint verification. The contact tail length difference (0.154" vs. 0.157") is within acceptable tolerance for solder-tail insertion into standard through-hole pads.

Frequently Asked Questions (FAQ)

Q: Can the OSTOQ145450 be used as a direct replacement for the 1879751 in existing PCB designs?

A: Direct replacement is possible if the PCB footprint accommodates solder-tail termination. The 0.003" (0.03mm) difference in contact tail length is negligible for standard through-hole pad sizing. Press-fit and solder termination require different insertion methods; verify your assembly process supports solder termination before substitution.

Q: Are the electrical ratings equivalent between these two parts?

A: Both parts meet UL voltage rating of 300 V. The original 1879751 specifies 12 A IEC current; the OSTOQ145450 does not specify IEC current but meets UL requirements. Verify that your application's current demand does not exceed 12 A.

Q: What is the significance of the shrouded (4 side) configuration?

A: Four-side shrouding provides mechanical protection, prevents accidental contact with live pins, and ensures proper polarization alignment with mating connectors. Both parts maintain this configuration, preserving mechanical compatibility.

Q: Does the operating temperature range difference affect substitution?

A: The OSTOQ145450 specifies -30°C ~ 105°C operation. If your application operates within this range, substitution is valid. The original part's temperature range is not specified; confirm your application requirements against the OSTOQ145450 specification.

Q: Are there any compliance differences between the two parts?

A: The OSTOQ145450 is ROHS3 compliant and REACH unaffected, meeting current environmental standards. Both parts share identical ECCN and HTSUS classifications, indicating no export or tariff complications for substitution.

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

A: The OSTOQ145450 has 830 pieces in new original stock, providing immediate availability for procurement and assembly operations.