Weidmüller 1786020000 Terminal Block: Equivalent & Substitute Parts

Part Overview

The Weidmüller 1786020000 is a 12-position wire-to-board terminal block with vertical top entry configuration and 5.08mm pitch spacing. This component is classified as obsolete, making equivalent substitute parts necessary for ongoing system maintenance and new design implementations. The terminal block accommodates 14-22 AWG wire gauges with screw-based TOP clamp termination, rated for 10A at 300V operation across -20°C to 100°C temperature range.

Substiute Parts

1786020000

WeidmüllerIn Stock: 12371786020000 Datasheet

Current PartRFQ

1-1776266-2

TE Connectivity AMP ConnectorsIn Stock: 9881-1776266-2 Datasheet

SimilarRFQ

ED500/12DS

On Shore Technology Inc.In Stock: 970ED500/12DS Datasheet

SimilarRFQ

OSTTA124163

On Shore Technology Inc.In Stock: 1224OSTTA124163 Datasheet

SimilarRFQ

OSTTC120162

On Shore Technology Inc.In Stock: 1346OSTTC120162 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Weidmüller 1786020000 is determined by the following critical parameters:

Primary Compatibility Criteria:

• 12-position configuration
• Through-hole PCB mounting
• 10A minimum current rating
• 300V voltage rating
• 14-22 AWG wire gauge support
• Operating temperature range encompassing -20°C to 100°C
• Screw-based wire termination

Secondary Consideration:

• Pitch tolerance: 5.08mm (0.200") primary specification, with 5.00mm (0.197") variants acceptable within mechanical envelope constraints
• Mating orientation: Vertical top entry preferred; horizontal side entry acceptable with board layout modification

The substitute parts listed below meet or exceed these electrical and mechanical parameters while maintaining active product status and current manufacturing availability.

Parameter Comparison

Engineering Selection Recommendations

Direct Vertical Entry Replacement: No active substitute maintains the vertical top-entry configuration of the Weidmüller 1786020000. All listed substitutes employ horizontal side-entry orientation, requiring PCB layout modification.

Horizontal Side-Entry Substitutes (Board Layout Modification Required):

1-1776266-2 (TE Connectivity AMP Buchanan Series): Maintains 10A current rating matching the original specification. Operates across -55°C to 105°C, exceeding the original temperature range. ROHS3 compliant with active product status. Pitch variance of 0.08mm (5.00mm vs. 5.08mm) requires mechanical verification against PCB hole spacing.

ED500/12DS (On Shore Technology ED500/DS Series): Provides 15A current rating, exceeding original 10A specification. ROHS3 compliant with active product status. Operates -30°C to 105°C. Pitch at 5.00mm requires mechanical verification.

OSTTA124163 (On Shore Technology OSTTA Series): Maintains 5.08mm pitch matching original specification, eliminating pitch-related mechanical concerns. Provides 15A current rating. ROHS3 compliant with active product status. Operates -30°C to 105°C.

OSTTC120162 (On Shore Technology OSTTC Series): Provides 15A current rating with ROHS3 compliance and active product status. Operates -30°C to 105°C. Pitch at 5.00mm requires mechanical verification.

Compliance Consideration: All active substitutes carry ROHS3 compliance certification, whereas the obsolete Weidmüller part does not specify RoHS status. This compliance alignment supports long-term supply chain sustainability.

Frequently Asked Questions (FAQ)

Q: Can the Weidmüller 1786020000 be directly replaced with a horizontal side-entry terminal block?

A: Direct replacement requires PCB layout modification. The original component features vertical top-entry configuration; all listed substitutes employ horizontal side-entry orientation. Connector position and wire routing must be redesigned accordingly.

Q: What is the significance of the 5.08mm vs. 5.00mm pitch difference?

A: Pitch determines PCB hole spacing. The 0.08mm variance between 5.08mm (original) and 5.00mm (most substitutes) may exceed PCB tolerance stackup. OSTTA124163 maintains 5.08mm pitch, eliminating this concern. Verify PCB hole spacing against substitute specifications before implementation.

Q: Are all substitute parts rated for the same current as the original?

A: The original Weidmüller 1786020000 is rated 10A. Three substitutes (ED500/12DS, OSTTA124163, OSTTC120162) provide 15A rating, exceeding original specification. 1-1776266-2 matches the 10A rating. Higher current ratings do not compromise compatibility; they provide design margin.

Q: What is the difference between TOP clamp and leaf spring termination?

A: The original uses screw-based TOP clamp termination. All substitutes employ screw-based leaf spring with wire guard termination. Both are screw-actuated; the mechanical clamp design differs. Torque specifications vary: original 0.4-0.5 Nm (M2.5), substitutes 0.3-0.51 Nm (M2.6-M3). Verify torque tool compatibility.

Q: Which substitute offers the closest electrical and mechanical match?

A: OSTTA124163 maintains 5.08mm pitch matching the original specification, eliminating pitch-related PCB modification concerns. It provides 15A current rating with ROHS3 compliance and active product status. Horizontal side-entry orientation still requires board layout modification.

Q: Are these substitutes suitable for new designs or only for replacement applications?

A: All listed substitutes carry active product status and ROHS3 compliance, making them suitable for both replacement and new design applications. The original Weidmüller part is obsolete and should not be specified for new designs.

Q: What inventory considerations apply to these substitutes?

A: All substitutes maintain substantial inventory levels (863-1287 pieces in stock), supporting both immediate replacement needs and production volume requirements. The original Weidmüller part shows 1148 pieces available, though obsolete status may limit future availability.