Weidmüller 1775802001 Terminal Block Header - Equivalent & Substitute Parts

Part Overview

The Weidmüller 1775802001 is a 22-position terminal block header with male pins, shrouded on two sides, featuring a 0.200" (5.08mm) pitch for vertical through-hole 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

1775802001

WeidmüllerIn Stock: 10621775802001 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 1775802001 is determined by the following critical parameters:

• Position Count: 22 positions (fixed requirement)
• Pitch Tolerance: 0.200" (5.08mm) nominal, with allowance for 0.197" (5.00mm) as a near-equivalent pitch within manufacturing tolerances
• Connector Type: Header with male pins, shrouded configuration
• Mounting Method: Vertical through-hole solder termination
• Electrical Performance: Current and voltage ratings must meet or exceed application requirements
• Temperature Range: Operating temperature compatibility with system environment
• Compliance: RoHS and REACH compliance status

The Assmann WSW Components A-TB500-OQ22CV qualifies as a substitute based on matching position count, compatible pitch specification, identical connector orientation, and equivalent solder termination. Both components maintain vertical through-hole mounting and support the same electrical standards within their respective rating systems.

Parameter Comparison

Engineering Selection Recommendations

The Assmann WSW Components A-TB500-OQ22CV represents an active alternative to the obsolete Weidmüller 1775802001. Selection between these components should be based on the following factors:

Pitch Specification: The Assmann component features a 0.197" (5.00mm) pitch compared to the Weidmüller's 0.200" (5.08mm) pitch. This 0.03mm difference per position accumulates to approximately 0.66mm across the 22-position span. PCB layout compatibility must be verified before substitution.

Shroud Configuration: The Weidmüller provides two-side shrouding, while the Assmann provides four-side shrouding. The enhanced shrouding of the Assmann component offers improved EMI shielding and mechanical protection.

Contact Tail Length: The Assmann component has a longer contact tail (0.138" versus 0.059"), which may affect PCB hole depth requirements and solder joint formation characteristics.

Electrical Performance: The Assmann component supports 20A at 300V (UL), exceeding the Weidmüller's 18.5A rating. The Weidmüller provides IEC ratings of 27.5A at 400V, which are not specified for the Assmann component.

Temperature Range: The Assmann component operates from -40°C to 115°C, providing a wider upper temperature limit than the Weidmüller's -50°C to 100°C range.

Compliance Status: Both components maintain RoHS compliance and REACH unaffected status, supporting modern regulatory requirements.

Frequently Asked Questions (FAQ)

Q: Can the Assmann A-TB500-OQ22CV be directly substituted for the Weidmüller 1775802001 on existing PCBs?

A: Direct substitution requires PCB layout verification. The pitch difference of 0.03mm per position (0.66mm total span) and the longer contact tail length (0.138" versus 0.059") may necessitate PCB modifications. Hole spacing and depth must be confirmed compatible before implementation.

Q: What is the significance of the shroud configuration difference?

A: The Weidmüller provides two-side shrouding, while the Assmann provides four-side shrouding. Four-side shrouding offers enhanced mechanical protection and improved EMI containment. This difference does not affect electrical compatibility but may impact physical mounting clearances.

Q: Are the electrical ratings equivalent between these components?

A: The components operate at the same UL voltage rating (300V). The Assmann supports 20A (UL) compared to the Weidmüller's 18.5A (UL), representing a 1.5A increase. The Weidmüller provides IEC ratings (27.5A at 400V) not specified for the Assmann. Application requirements determine which rating system is applicable.

Q: What are the material differences between these components?

A: The Weidmüller uses Liquid Crystal Polymer (LCP) glass-filled housing with copper alloy contacts. The Assmann uses thermoplastic housing with copper contacts. Both materials maintain UL94 V-0 flammability ratings and support equivalent operating conditions within their specified temperature ranges.

Q: Is the Assmann component suitable for applications requiring the full -50°C lower temperature limit?

A: The Assmann component operates from -40°C, which is 10°C higher than the Weidmüller's -50°C minimum. Applications requiring operation below -40°C must use the Weidmüller or identify alternative components with equivalent low-temperature specifications.

Q: How do the contact tail lengths affect PCB design?

A: The Assmann's longer contact tail (0.138" versus 0.059") provides greater solder joint engagement with the PCB but requires deeper plated through-holes. The Weidmüller's shorter tail may be suitable for thinner PCBs or designs with limited hole depth. PCB thickness and hole specifications must be verified for compatibility.