Weidmüller 1775122001 Terminal Block Header – Equivalent & Substitute Parts

Part Overview

The Weidmüller 1775122001 is a 14-position terminal block header with male pins, shrouded on four sides, featuring 0.200" (5.08mm) pitch and 90° right-angle through-hole mounting. This component is classified as obsolete, making equivalent substitute parts necessary for ongoing system maintenance and new design implementations. The part operates within IEC ratings of 27.5A at 400V and UL ratings of 18.5A at 300V, with UL94 V-0 flammability compliance and RoHS compliance.

Substiute Parts

1775122001

WeidmüllerIn Stock: 11101775122001 Datasheet

Current PartRFQ

1757365

Phoenix ContactIn Stock: 17041757365 Datasheet

SimilarRFQ

1757585

Phoenix ContactIn Stock: 9001757585 Datasheet

SimilarRFQ

1759130

Phoenix ContactIn Stock: 8431759130 Datasheet

SimilarRFQ

OSTOQ145351

On Shore Technology Inc.In Stock: 1018OSTOQ145351 Datasheet

SimilarRFQ

OSTOQ145451

On Shore Technology Inc.In Stock: 1083OSTOQ145451 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Weidmüller 1775122001 is determined by the following critical parameters:

• Position Count: Must be 14 positions
• Pitch: Must be 0.200" (5.08mm) or 0.197" (5.00mm)
• Header Type: Male pins with shrouding (2-side or 4-side acceptable)
• Orientation: 90° right-angle configuration
• Mounting Type: Through-hole solder mounting
• Voltage Rating: Minimum 300V UL or 400V IEC
• Flammability: UL94 V-0 compliance preferred
• RoHS Compliance: ROHS3 or equivalent

Four substitute parts meet these criteria with varying degrees of parameter alignment. Substitutes are grouped by shrouding configuration and pitch specification, as these directly affect mechanical fit and electrical performance in the target application.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: Phoenix Contact 1757365

The 1757365 provides the closest electrical and mechanical alignment to the original Weidmüller 1775122001. Both parts feature identical 14-position, 5.08mm pitch configuration with 4-side shrouding and through-hole solder mounting. The 1757365 maintains UL94 V-0 flammability compliance and ROHS3 certification. Current rating differential (15A UL vs. 18.5A UL) reflects design variations between manufacturers but remains within acceptable substitution parameters for most applications. Active product status ensures long-term availability.

Secondary Substitute: Phoenix Contact 1759130

The 1759130 offers mechanical and electrical compatibility with the primary difference of 2-side shrouding versus 4-side. This configuration change affects mechanical fit in constrained mounting environments. Identical pitch, position count, voltage ratings, and flammability compliance support substitution in applications where shrouding configuration is not a critical constraint. Active status and ROHS3 compliance are maintained.

Alternative Substitute: Phoenix Contact 1757585

The 1757585 differs in pitch specification (5.00mm vs. 5.08mm), introducing potential mechanical incompatibility with existing connector receptacles or mating components designed for 5.08mm spacing. This part is suitable only when the application can accommodate the pitch variation. All other electrical and compliance parameters align with substitution criteria.

Tertiary Substitutes: On Shore Technology OSTOQ145451 and OSTOQ145351

Both On Shore parts meet position count, pitch, orientation, and voltage requirements with active product status and ROHS3 compliance. However, incomplete specification data for current ratings, flammability classification, and operating temperature ranges introduces uncertainty in full parameter validation. The OSTOQ145451 (4-side shrouding) provides closer mechanical alignment than OSTOQ145351 (2-side shrouding). These parts are suitable for applications where complete specification data can be independently verified.

Frequently Asked Questions (FAQ)

Q: Can the Phoenix Contact 1757585 be used as a direct replacement despite the 5.00mm pitch specification?

A: The 1757585 operates at 5.00mm pitch versus the original 5.08mm specification. Direct substitution is not recommended without mechanical validation. Existing mating connectors, PCB layouts, or panel-mount receptacles designed for 5.08mm spacing may not accommodate 5.00mm pitch components. Pitch incompatibility can result in improper mating, contact misalignment, or mechanical damage.

Q: What is the significance of 2-side versus 4-side shrouding in the Phoenix Contact substitutes?

A: Shrouding configuration affects mechanical protection and mounting stability. 4-side shrouding (1757365, OSTOQ145451) provides complete perimeter protection and is mechanically equivalent to the original 1775122001. 2-side shrouding (1759130, OSTOQ145351) reduces material and cost but may affect mechanical fit in applications requiring full perimeter support or specific mounting orientations. Substitution with 2-side shrouding requires confirmation that the target application does not depend on 4-side shrouding geometry.

Q: Why do the On Shore Technology parts show incomplete electrical specifications?

A: The OSTOQ145451 and OSTOQ145351 specifications provided do not include current ratings (IEC or UL) or material flammability classifications. These omissions prevent complete electrical equivalency validation. Before selecting these parts, obtain complete technical documentation from the manufacturer to confirm current capacity, voltage ratings under both IEC and UL standards, and flammability compliance status.

Q: Are all substitute parts RoHS compliant?

A: All listed substitutes carry ROHS3 compliance certification, meeting current regulatory requirements. The original Weidmüller 1775122001 is RoHS Compliant. This alignment ensures regulatory compatibility in applications subject to RoHS directives.

Q: What is the impact of current rating differences between the original and substitute parts?

A: The Weidmüller 1775122001 is rated at 18.5A (UL) and 27.5A (IEC), while Phoenix Contact substitutes are rated at 15A (UL) and 12A (IEC). These differences reflect design and material variations between manufacturers. For applications operating below the substitute part ratings, the lower current capacity is not a limiting factor. Applications requiring the full 18.5A or 27.5A capacity must retain the original part or identify substitutes with equivalent or higher current ratings.

Q: Can the On Shore Technology OSTOQ145451 be used in high-reliability applications?

A: The OSTOQ145451 meets basic substitution criteria (position count, pitch, orientation, voltage). However, incomplete specification data regarding flammability classification and operating temperature range limits its suitability for high-reliability applications without independent verification. Obtain full technical documentation and conduct application-specific validation before deployment in critical systems.