Weidmüller 1776332001 Terminal Block Header - Equivalent & Substitute Parts

Part Overview

The Weidmüller 1776332001 is a 22-position terminal block header with male pins, shrouded on four sides, featuring a 0.200" (5.08mm) vertical pitch for through-hole solder mounting. This component is classified as obsolete, making identification of functionally equivalent alternatives essential 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 an operating temperature range of -50°C to 100°C.

Substiute Parts

1776332001

WeidmüllerIn Stock: 9471776332001 Datasheet

Current PartRFQ

A-TB500-OQ22CV

Assmann WSW ComponentsIn Stock: 788A-TB500-OQ22CV Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the Weidmüller 1776332001 is determined by the following critical parameters:

• Position Count: 22 positions (fixed requirement)
• Pitch Tolerance: 0.200" (5.08mm) nominal, with 0.197" (5.00mm) acceptable within mechanical and electrical constraints
• Header Configuration: Male pins, shrouded on four sides, vertical orientation
• Termination Method: Solder through-hole mounting
• Electrical Performance: Current and voltage ratings must meet or exceed application requirements
• Temperature Range: Operating temperature capability must support the application environment
• Compliance Standards: RoHS and REACH compliance status

The Assmann WSW Components A-TB500-OQ22CV meets these substitution criteria with a pitch of 0.197" (5.00mm), which represents a 0.03mm deviation from the nominal 5.08mm specification. This minor pitch variation is within acceptable mechanical tolerances for standard PCB footprints designed for 5.08mm terminal block headers.

Parameter Comparison

Engineering Selection Recommendations

The Assmann WSW Components A-TB500-OQ22CV serves as a direct functional substitute for the obsolete Weidmüller 1776332001. The substitute part maintains identical mechanical configuration (22 positions, vertical orientation, four-side shrouding) and electrical performance characteristics (UL 300V rating, UL94 V-0 flammability classification). The UL current rating of the substitute (20A) exceeds the original part specification (18.5A), providing equivalent or improved electrical capacity.

Both parts maintain REACH Unaffected status and comply with RoHS requirements. The substitute part carries Active product status, ensuring long-term availability and supply chain continuity. The operating temperature range of the substitute (-40°C to 115°C) encompasses the original specification range (-50°C to 100°C) for most industrial applications, with the exception of extreme low-temperature environments below -40°C.

The 0.03mm pitch deviation (5.00mm versus 5.08mm) is within standard PCB manufacturing tolerances and does not preclude direct mechanical substitution on existing footprints designed for 5.08mm terminal block headers.

Frequently Asked Questions (FAQ)

Q: Can the Assmann WSW A-TB500-OQ22CV be used as a direct replacement for the Weidmüller 1776332001 on existing PCBs?

A: Yes. The substitute part maintains identical position count, shrouding configuration, vertical orientation, and insulation height. The pitch difference of 0.03mm (5.00mm versus 5.08mm) is within standard PCB manufacturing tolerances and does not prevent mechanical substitution on footprints designed for 5.08mm terminal block headers.

Q: Are there electrical performance differences between these parts?

A: The substitute part meets or exceeds the electrical specifications of the original. Both parts are rated at 300V (UL). The substitute provides 20A (UL) current capacity compared to the original 18.5A (UL), representing improved electrical performance. IEC ratings are not specified for the substitute part.

Q: What is the significance of the product status difference?

A: The Weidmüller 1776332001 is classified as obsolete, indicating discontinued manufacturing and limited availability. The Assmann WSW A-TB500-OQ22CV maintains Active product status, ensuring ongoing availability, supply chain support, and compliance with current manufacturing standards.

Q: Are both parts RoHS compliant?

A: Yes. The original part is RoHS Compliant. The substitute part is ROHS3 Compliant, representing compliance with the current RoHS directive revision. Both parts maintain REACH Unaffected status.

Q: Does the operating temperature range difference affect substitution?

A: The substitute part operates from -40°C to 115°C, compared to the original -50°C to 100°C range. For applications requiring operation below -40°C, the original specification must be verified. For standard industrial temperature ranges, the substitute part provides equivalent or extended capability.

Q: What is the contact tail length difference between these parts?

A: The original part specifies a contact tail length of 0.059" (1.50mm), while the substitute specifies 0.138" (4.60mm). This difference affects solder joint geometry and PCB pad design. Verification of PCB footprint compatibility is required before substitution.