Weidmüller 1776452001 Terminal Block Header - Equivalent & Substitute Parts

Part Overview

The Weidmüller 1776452001 is an 11-position terminal block header with male pins, featuring a shrouded 4-side design and 0.200" (5.08mm) vertical pitch for through-hole mounting. This component is part of the Omnimate SL series and is classified as obsolete. Finding equivalent and substitute parts is necessary due to the discontinued status of this model, requiring engineers to identify functionally compatible alternatives that maintain electrical and mechanical compatibility with existing designs.

Substiute Parts

1776452001

WeidmüllerIn Stock: 8621776452001 Datasheet

Current PartRFQ

1838530000

WeidmüllerIn Stock: 10641838530000 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the Weidmüller 1776452001 is determined by strict equivalence across the following critical parameters:

• Electrical Compatibility: Current and voltage ratings must match or exceed the original specification (IEC: 27.5A @ 400V; UL: 18.5A @ 300V)
• Mechanical Compatibility: Number of positions (11), pitch (0.200" / 5.08mm), header orientation (vertical), and shrouded 4-side design must be identical
• Termination Method: Solder termination through-hole mounting must be maintained
• Environmental Compliance: RoHS compliance and UL94 V-0 flammability rating must be preserved
• Temperature Range: Operating temperature range of -50°C to 100°C must be supported

The substitute part 1838530000 meets all these criteria, providing functional equivalence while offering the advantage of active product status and improved availability.

Parameter Comparison

Engineering Selection Recommendations

The Weidmüller 1838530000 is the direct substitute for the obsolete 1776452001. Both components are manufactured by Weidmüller within the Omnimate SL series and maintain identical electrical ratings, mechanical dimensions, and compliance certifications. The primary advantage of selecting 1838530000 is its active product status, ensuring continued availability and supply chain reliability.

A minor dimensional difference exists in the contact tail length: the substitute part features a 0.126" (3.20mm) tail compared to the original 0.059" (1.50mm). This longer tail provides improved solder joint strength and mechanical stability in through-hole applications, representing an engineering improvement over the original design. This difference does not affect functional compatibility in standard PCB mounting applications.

Both parts maintain RoHS compliance and UL94 V-0 flammability certification, meeting current regulatory requirements for industrial and commercial applications.

Frequently Asked Questions (FAQ)

Q: Can the 1838530000 be used as a direct replacement for the 1776452001 in existing designs?

A: Yes. The 1838530000 is electrically and mechanically equivalent to the 1776452001 across all critical parameters including position count, pitch, voltage/current ratings, and termination method. The longer contact tail on the substitute part (0.126" vs. 0.059") provides improved solder joint reliability without affecting compatibility.

Q: What is the primary reason for substituting the 1776452001?

A: The 1776452001 is classified as obsolete. The 1838530000 provides functional equivalence while maintaining active product status and ensuring long-term supply availability.

Q: Are there any compliance or certification differences between these parts?

A: No. Both parts are RoHS compliant and carry the UL94 V-0 flammability rating. Electrical ratings (IEC: 27.5A @ 400V; UL: 18.5A @ 300V) and operating temperature range (-50°C to 100°C) are identical.

Q: Does the difference in contact tail length affect PCB layout?

A: The longer contact tail on the 1838530000 (0.126" vs. 0.059") may require minor PCB layout adjustments if the original design had minimal clearance below the component. In most standard through-hole applications, this difference is accommodated without design changes.

Q: What is the packaging difference between these parts?

A: The 1776452001 was supplied with unspecified packaging, while the 1838530000 is supplied in bulk packaging. This does not affect component functionality or performance.