Weidmüller 1786000000 Terminal Block: Equivalent & Substitute Parts

Part Overview

The Weidmüller 1786000000 is a 10-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 new designs and ongoing system maintenance. 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.

Key Parameters

Parameter	Value
Manufacturer Part Number	1786000000
Manufacturer	Weidmüller
Category	Terminal Blocks
Positions	10
Pitch	0.200" (5.08mm)
Mating Orientation	Vertical with Board
Current Rating	10 A
Voltage Rating	300 V
Wire Gauge	14-22 AWG
Mounting Type	Through Hole
Wire Termination	Screw - TOP Clamp
Operating Temperature	-20°C ~ 100°C
Housing Material	Polyamide (PA66), Nylon 6/6
Contact Material - Plating	Brass - Tin Plated
RoHS Status	RoHS Compliant
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution eligibility for the Weidmüller 1786000000 is determined by the following critical parameters:

Primary Compatibility Criteria:

10-position configuration
Through-hole PCB mounting
14-22 AWG wire gauge support
Minimum 10A current rating
300V voltage rating
Screw-based wire termination

Acceptable Variations:

Pitch tolerance: 0.197" (5.00mm) to 0.200" (5.08mm) are functionally equivalent for standard PCB layouts
Mating orientation: Horizontal (side entry) substitutes are acceptable where board space permits orientation change
Operating temperature range: Substitutes with extended or equivalent ranges are acceptable
Wire termination method: Leaf spring with wire guard provides equivalent or superior clamping performance compared to TOP clamp

The four substitute parts listed below meet these criteria through different pitch and orientation configurations while maintaining electrical and mechanical compatibility.

Parameter Comparison

Parameter	1786000000 (Weidmüller)	1-1776266-0 (TE Connectivity)	ED500/10DS (On Shore)	OSTTA104163 (On Shore)	OSTTC100162 (On Shore)
Positions	10	10	10	10	10
Pitch	0.200" (5.08mm)	0.197" (5.00mm)	0.197" (5.00mm)	0.200" (5.08mm)	0.197" (5.00mm)
Mating Orientation	Vertical with Board	Horizontal with Board	Horizontal with Board	Horizontal with Board	Horizontal with Board
Current Rating	10 A	10 A	15 A	15 A	15 A
Voltage Rating	300 V	300 V	300 V	300 V	300 V
Wire Gauge	14-22 AWG	14-22 AWG	14-22 AWG	14-22 AWG	14-22 AWG
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
Wire Termination	Screw - TOP Clamp	Screw - Leaf Spring, Wire Guard	Screw - Leaf Spring, Wire Guard	Screw - Leaf Spring, Wire Guard	Screw - Leaf Spring, Wire Guard
Operating Temperature	-20°C ~ 100°C	-55°C ~ 105°C	-30°C ~ 105°C	-30°C ~ 105°C	-30°C ~ 105°C
Housing Material	Polyamide (PA66), Nylon 6/6	Polyamide (PA66), Nylon 6/6	Polyamide (PA), Nylon	Thermoplastic	Thermoplastic
RoHS Status	RoHS Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Obsolete	Active	Active	Active	Active

Engineering Selection Recommendations

For Direct Replacement (Matching Pitch and Orientation): OSTTA104163 provides the closest functional match with identical 0.200" (5.08mm) pitch and horizontal board entry. This part maintains full electrical compatibility while offering active product status and ROHS3 compliance. The 15A current rating exceeds the original 10A specification, providing design margin.

For Pitch-Flexible Applications (0.197" / 5.00mm): ED500/10DS, OSTTC100162, and 1-1776266-0 are suitable where PCB layout accommodates 0.197" (5.00mm) pitch spacing. All three maintain 300V voltage rating and 14-22 AWG wire gauge compatibility. ED500/10DS and OSTTC100162 offer 15A current capacity. All substitute parts carry active product status and current compliance certifications (ROHS3, REACH Unaffected or Vendor Undefined).

Compliance Considerations: All substitute parts exceed or match the original RoHS compliance status. The Weidmüller 1786000000 is RoHS Compliant; all substitutes are ROHS3 Compliant, representing current regulatory alignment. REACH status varies across substitutes but does not restrict substitution eligibility.

Frequently Asked Questions (FAQ)

Q: Can I use a 0.197" (5.00mm) pitch terminal block as a substitute for the 0.200" (5.08mm) pitch original? A: Yes, for applications where PCB layout permits. The 0.3mm pitch difference is within standard PCB manufacturing tolerances and does not affect electrical performance. Verify PCB hole spacing before implementation.

Q: What is the difference between TOP clamp and leaf spring wire termination? A: Both are screw-based termination methods. TOP clamp uses a top-mounted screw mechanism; leaf spring with wire guard uses a spring-loaded contact with protective guard. Leaf spring termination provides equivalent or superior clamping force and is widely used in modern terminal block designs.

Q: Are horizontal (side entry) substitutes compatible with vertical (top entry) PCB layouts? A: Horizontal entry requires different PCB hole orientation and connector approach angle. Physical board space and connector accessibility must be evaluated. OSTTA104163 maintains vertical orientation compatibility if pitch tolerance is acceptable.

Q: Do the substitute parts support the same wire gauge range? A: Yes, all substitute parts accommodate 14-22 AWG wire, matching the original specification.

Q: Which substitute offers the best current capacity margin? A: ED500/10DS, OSTTA104163, and OSTTC100162 all provide 15A rating, exceeding the original 10A specification by 50%.

Q: Are all substitutes RoHS compliant? A: Yes, all substitute parts carry ROHS3 compliance, which supersedes the original RoHS Compliant status.

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