Weidmüller 1785930000 Equivalent & Substitute Parts

Part Overview

The Weidmüller 1785930000 is a 3-position wire-to-board terminal block with vertical top entry configuration and 5.08mm pitch, designed for through-hole PCB mounting. This component operates at 10A/300V with screw-clamp wire termination and supports 14-22 AWG wire gauges. The part is classified as obsolete, necessitating identification of active equivalent alternatives that maintain functional compatibility for new designs or production continuity.

Key Parameters

Parameter	Value
Manufacturer Part Number	1785930000
Manufacturer	Weidmüller
Category	Terminal Blocks
Positions Per Level	3
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 of the Weidmüller 1785930000 is determined by the following critical parameters:

Positions and Pitch: All substitutes maintain 3 positions per level. Pitch tolerance allows 0.197" (5.00mm) and 0.200" (5.08mm) variants, as these are standard terminal block increments within the same mechanical family.
Electrical Ratings: Substitutes must support minimum 10A at 300V. Higher current ratings (15A) are acceptable as they provide design margin.
Wire Gauge Compatibility: All substitutes support 14-22 AWG, matching the original specification.
Mounting and Termination: Through-hole PCB mounting is maintained across all substitutes. Wire termination transitions from vertical top-entry screw clamp to horizontal side-entry screw clamp with leaf spring and wire guard, representing a functional design evolution.
Compliance: All substitutes are RoHS3 compliant and REACH unaffected, meeting modern regulatory requirements.

The primary design change across substitutes is the shift from vertical to horizontal mating orientation, which requires PCB layout modification but maintains electrical and mechanical compatibility within the terminal block category.

Parameter Comparison

Parameter	1785930000 (Weidmüller)	1776266-3 (TE Connectivity)	ED500/3DS (On Shore)	EDZ500/3DS (On Shore)	OSTTA034163 (On Shore)	OSTTC030162 (On Shore)
Positions Per Level	3	3	3	3	3	3
Pitch	0.200" (5.08mm)	0.197" (5.00mm)	0.197" (5.00mm)	0.200" (5.08mm)	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	Horizontal with Board
Current Rating	10 A	10 A	15 A	15 A	15 A	15 A
Voltage Rating	300 V	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	14-22 AWG
Mounting Type	Through Hole	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	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	-30°C ~ 105°C
Housing Material	Polyamide (PA66), Nylon 6/6	Polyamide (PA66), Nylon 6/6	Polyamide (PA), Nylon	Polyamide (PA), Nylon	Thermoplastic	Thermoplastic
RoHS Status	RoHS Compliant	RoHS Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Obsolete	Active	Active	Active	Active	Active
Inventory Availability	688 Pcs	1102 Pcs	1828 Pcs	1209 Pcs	4218 Pcs	71223 Pcs

Engineering Selection Recommendations

Primary Substitute - Exact Pitch Match: EDZ500/3DS (On Shore Technology) and OSTTA034163 (On Shore Technology) maintain the 0.200" (5.08mm) pitch of the original Weidmüller 1785930000, minimizing PCB layout modifications. Both are active products with ROHS3 compliance and REACH unaffected status. EDZ500/3DS provides higher current capacity (15A) with standard leaf spring termination. OSTTA034163 offers the highest inventory availability (4218 Pcs) with interlocking side-entry features and zinc-plated steel fasteners.

Secondary Substitutes - Pitch Tolerance (0.197" / 5.00mm): ED500/3DS (On Shore Technology), 1776266-3 (TE Connectivity AMP Connectors), and OSTTC030162 (On Shore Technology) operate at 0.197" (5.00mm) pitch. These require PCB footprint adjustment but maintain full electrical compatibility. OSTTC030162 offers exceptional inventory depth (71223 Pcs) and tin-plated contact material. 1776266-3 provides the widest operating temperature range (-55°C ~ 105°C) and is backed by TE Connectivity's established supply chain.

Compliance Assurance: All substitute parts are RoHS3 compliant and REACH unaffected, exceeding the original RoHS compliance status of the obsolete Weidmüller part. This ensures regulatory alignment for current and future production requirements.

Frequently Asked Questions (FAQ)

Q: Can I use a 0.197" (5.00mm) pitch substitute in place of the 0.200" (5.08mm) original? A: Pitch substitution requires PCB footprint redesign. The 0.197" pitch variants (ED500/3DS, 1776266-3, OSTTC030162) are mechanically and electrically compatible but demand layout modification. Verify PCB spacing constraints before selection.

Q: What is the primary design difference between the original and substitute parts? A: The Weidmüller 1785930000 uses vertical top-entry screw clamp termination, while all substitutes employ horizontal side-entry screw clamp with leaf spring and wire guard. This orientation change improves wire insertion ergonomics and provides integrated strain relief but requires connector approach angle modification in the assembly process.

Q: Are all substitutes rated for the same current and voltage? A: The original part is rated 10A/300V. All substitutes meet or exceed this specification, with On Shore Technology variants rated 15A/300V. Higher current ratings provide design margin and are directly compatible with 10A circuit requirements.

Q: Which substitute offers the best long-term availability? A: OSTTC030162 (On Shore Technology) demonstrates the highest inventory position (71223 Pcs) and is an active product with established supply continuity. For critical applications, this part provides the strongest availability assurance.

Q: Do all substitutes support the same wire gauge range? A: Yes. All substitute parts support 14-22 AWG wire, matching the original specification. Wire termination method (leaf spring with wire guard) accommodates this range without modification.

Q: What is the temperature operating range difference? A: The original Weidmüller part operates -20°C ~ 100°C. Substitutes expand this range: TE Connectivity 1776266-3 reaches -55°C ~ 105°C, while On Shore variants operate -30°C ~ 105°C. Verify application temperature requirements before selection.

Q: Are these parts interchangeable without firmware or software changes? A: Terminal blocks are passive components requiring no firmware interaction. Substitution is purely mechanical and electrical. PCB layout modification may be necessary for orientation change, but no software updates are required.

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