Weidmüller 1774862001 Terminal Block Header - Equivalent & Substitute Parts

Part Overview

The Weidmüller 1774862001 is a 12-position terminal block header with male pins, shrouded on 2 sides, designed for 0.200" (5.08mm) pitch right-angle through-hole mounting. This component operates within IEC ratings of 27.5A at 400V and UL ratings of 18.5A at 300V, with an operating temperature range of -50°C to 100°C. The part is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing system maintenance and new designs requiring compatible interconnection solutions.

Substiute Parts

1774862001

WeidmüllerIn Stock: 9121774862001 Datasheet

Current PartRFQ

1155690000

WeidmüllerIn Stock: 11191155690000 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Weidmüller 1774862001 is determined by the following critical parameters:

• Position count and pitch: Both main and substitute parts must maintain 12 positions at 0.200" (5.08mm) pitch to ensure mechanical and electrical compatibility with mating connectors and PCB layouts.
• Header orientation and mounting: Right-angle through-hole configuration must be preserved for identical board-level integration.
• Electrical ratings: Substitute parts must meet or exceed the IEC and UL voltage and current specifications to maintain system safety margins.
• Termination and contact material: Solder termination with copper alloy contacts ensures consistent solderability and electrical performance.
• Temperature range and compliance: Operating temperature range of -50°C to 100°C and UL94 V-0 flammability rating must be maintained. RoHS compliance is required for regulatory alignment.

The Weidmüller 1155690000 qualifies as a direct substitute based on these parameters, with the primary distinction being enhanced shrouding (4-side versus 2-side) and interlocking features that provide improved mechanical stability.

Parameter Comparison

Engineering Selection Recommendations

The Weidmüller 1155690000 is the qualified substitute for the obsolete 1774862001. Both components maintain identical electrical performance under UL ratings (18.5A at 300V) and equivalent IEC voltage specifications (400V). The substitute part carries active product status, ensuring ongoing availability and supply chain continuity.

Key considerations for selection:

• Shrouding enhancement: The 1155690000 provides 4-side shrouding with interlocking features compared to 2-side shrouding on the original part. This improves mechanical stability and reduces the risk of accidental contact during handling and installation.
• IEC current rating: The substitute part is rated at 24A under IEC conditions, compared to 27.5A for the original. For applications operating at or below 24A IEC, this presents no limitation. Applications requiring the full 27.5A IEC rating must evaluate whether the 24A rating is acceptable for the specific use case.
• Contact tail length and insulation height: The substitute part features a longer contact tail (0.126" versus 0.059") and greater insulation height (0.472" versus 0.335"), reflecting design improvements in the Omnimate SL series evolution.
• Housing material: The substitute uses polyamide (PA) nylon glass-filled material versus liquid crystal polymer (LCP) on the original. Both materials maintain UL94 V-0 flammability compliance and are suitable for the specified temperature range.
• Compliance and certifications: Both parts are RoHS compliant, REACH unaffected, and classified under ECCN EAR99, meeting regulatory requirements for industrial and commercial applications.

Frequently Asked Questions (FAQ)

Q: Can the 1155690000 be used as a direct replacement for the 1774862001 in existing designs?

A: Yes, for applications operating at or below 24A under IEC conditions. The 12-position, 5.08mm pitch, right-angle through-hole configuration is identical, ensuring mechanical and electrical compatibility with existing PCB layouts and mating connectors. The enhanced 4-side shrouding provides improved mechanical protection without affecting electrical performance.

Q: What is the significance of the shrouding difference between 2-side and 4-side?

A: The 2-side shrouding on the 1774862001 provides lateral protection, while the 4-side shrouding on the 1155690000 extends protection to all sides with interlocking features. This reduces the risk of accidental contact with exposed pins during assembly, testing, and field service. The electrical performance remains unchanged.

Q: Does the difference in IEC current rating (27.5A versus 24A) affect compatibility?

A: Compatibility depends on the application's actual current requirements. If the system operates at or below 24A, the substitute part is fully compatible. If the design requires the full 27.5A IEC rating, the substitute part's 24A rating may not meet specifications. Verify the application's maximum current draw before selection.

Q: Are the contact tail length and insulation height differences significant?

A: These dimensional differences reflect design improvements in the Omnimate SL series. The longer contact tail (0.126" versus 0.059") and greater insulation height (0.472" versus 0.335") on the substitute part provide enhanced mechanical engagement and electrical isolation. These changes are compatible with standard PCB through-hole patterns and do not affect solderability or performance.

Q: What is the impact of the housing material change from LCP to polyamide?

A: Both materials maintain UL94 V-0 flammability compliance and support the full -50°C to 100°C operating temperature range. Polyamide (PA) nylon glass-filled material offers excellent mechanical strength and dimensional stability. The material change reflects manufacturing evolution within the Omnimate SL series and does not compromise electrical or thermal performance.

Q: Why is the 1774862001 classified as obsolete?

A: Obsolescence typically reflects product line consolidation or design supersession. The 1155690000 represents the current-generation equivalent within the Omnimate SL series, offering enhanced features such as 4-side shrouding and interlocking capabilities while maintaining core electrical and mechanical specifications.

Q: Are both parts RoHS compliant and suitable for regulated industries?

A: Yes. Both the 1774862001 and 1155690000 are RoHS compliant, REACH unaffected, and classified under ECCN EAR99. Both meet regulatory requirements for industrial, commercial, and consumer applications subject to these compliance frameworks.