Weidmüller 1785920000 Terminal Block Equivalent & Substitute Parts

Part Overview

The Weidmüller 1785920000 is a 2-position wire-to-board terminal block with vertical mating orientation and 0.200" (5.08mm) pitch, designed for through-hole PCB mounting. This component operates at 10 A and 300 V with screw-type wire termination using a TOP clamp mechanism. The part is classified as obsolete, necessitating identification of active equivalent and substitute components that maintain functional compatibility within specified electrical and mechanical parameters.

Key Parameters

Parameter	Value
Manufacturer Part Number	1785920000
Manufacturer	Weidmüller
Category	Terminal Blocks
Positions Per Level	2
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 1785920000 is determined by the following critical parameters:

Primary Compatibility Criteria:

Positions per level: 2
Pitch: 0.200" (5.08mm)
Voltage rating: 300 V minimum
Wire gauge range: 14-22 AWG (minimum overlap)
Mounting type: Through hole
RoHS compliance status

Substitution Categories:

Category 1 - Direct Functional Replacement (Recommended): The Weidmüller 1426060000 maintains identical pitch (5.08mm), voltage (300 V), and wire gauge compatibility (12-24 AWG includes 14-22 AWG range). This part is active status with enhanced current rating (20 A vs. 10 A) and extended operating temperature range (-50°C ~ 120°C vs. -20°C ~ 100°C). Wire termination differs from screw-type TOP clamp to screwless push-in spring mechanism, requiring PCB layout and assembly process evaluation.

Category 2 - Pitch-Variant Substitutes (Conditional): Parts ED500/2DS, EDZ500/2DS, OSTTA024163, and OSTTC020162 feature pitch variations (5.00mm or 5.08mm) with horizontal mating orientation instead of vertical. These components maintain 300 V voltage rating and 14-22 AWG wire gauge compatibility but require mechanical redesign of PCB mounting footprint and connector orientation. Current ratings range from 15 A (ED500/2DS, EDZ500/2DS, OSTTA024163) to 15 A (OSTTC020162).

Category 3 - Cross-Manufacturer Alternatives: TE Connectivity 1776266-2 (Buchanan series) provides 2-position, 5.00mm pitch configuration with horizontal orientation, 10 A current rating matching the original part, and 300 V voltage rating. Wire gauge compatibility (14-22 AWG) and screw termination mechanism align with original specifications, though pitch and orientation differ.

Parameter Comparison

Parameter	1785920000 (Main)	1426060000	1776266-2	ED500/2DS	EDZ500/2DS	OSTTA024163	OSTTC020162
Manufacturer	Weidmüller	Weidmüller	TE Connectivity	On Shore Technology	On Shore Technology	On Shore Technology	On Shore Technology
Positions Per Level	2	2	2	2	2	2	2
Pitch	5.08mm	5.08mm	5.00mm	5.00mm	5.08mm	5.08mm	5.00mm
Mating Orientation	Vertical	Vertical	Horizontal	Horizontal	Horizontal	Horizontal	Horizontal
Current Rating	10 A	20 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	300 V
Wire Gauge	14-22 AWG	12-24 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	Through Hole
Wire Termination	Screw - TOP Clamp	Screwless - Push-In Spring	Screw - Leaf Spring	Screw - Leaf Spring	Screw - Leaf Spring	Screw - Leaf Spring	Screw - Leaf Spring
Operating Temperature	-20°C ~ 100°C	-50°C ~ 120°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)	Thermoplastic, Wemid	Polyamide (PA66)	Polyamide (PA)	Polyamide (PA)	Thermoplastic	Thermoplastic
Contact Material - Plating	Brass - Tin Plated	Copper Alloy - Tin Plated	Brass - Copper Tin Plated	Brass	Brass	Not Specified	Tin Plated
RoHS Status	RoHS Compliant	RoHS Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Obsolete	Active	Active	Active	Active	Active	Active

Engineering Selection Recommendations

Primary Selection - Weidmüller 1426060000: This part is the manufacturer-recommended replacement, maintaining identical pitch (5.08mm) and vertical mating orientation. Both components are RoHS compliant with equivalent voltage and wire gauge specifications. The 1426060000 offers enhanced current capacity (20 A) and extended temperature range (-50°C ~ 120°C), providing design margin for thermal and electrical performance. The transition from screw-type TOP clamp to screwless push-in spring termination requires assembly process validation but eliminates torque specification requirements.

Secondary Selection - TE Connectivity 1776266-2: This active component maintains the original 10 A current rating and screw termination mechanism, reducing assembly process changes. ROHS3 compliance and 300 V voltage rating ensure regulatory alignment. The 5.00mm pitch and horizontal orientation require PCB footprint redesign. This option is suitable for applications where mechanical orientation flexibility exists and assembly procedures remain unchanged.

Tertiary Selections - On Shore Technology Parts (ED500/2DS, EDZ500/2DS, OSTTA024163, OSTTC020162): These components provide active alternatives with 15 A current ratings and horizontal mating orientation. ROHS3 compliance and 300 V voltage rating maintain regulatory requirements. Pitch variations (5.00mm or 5.08mm) and horizontal orientation necessitate PCB layout modification. Selection among these variants depends on specific pitch requirement and inventory availability.

Frequently Asked Questions (FAQ)

Q: Can the Weidmüller 1426060000 directly replace the 1785920000 without PCB modification?

A: The 1426060000 maintains identical pitch (5.08mm) and vertical mating orientation, allowing direct PCB footprint compatibility. However, the wire termination mechanism differs from screw-type TOP clamp to screwless push-in spring, requiring assembly process evaluation and potential fixture modification.

Q: What is the primary difference between vertical and horizontal mating orientation substitutes?

A: Vertical orientation (1785920000, 1426060000) positions the connector perpendicular to the PCB surface with wire entry from above. Horizontal orientation (ED500/2DS, EDZ500/2DS, OSTTA024163, OSTTC020162, 1776266-2) positions the connector parallel to the PCB surface with side wire entry. This difference requires complete PCB footprint redesign and connector placement modification.

Q: Are all substitute parts RoHS compliant?

A: Yes. The original 1785920000 is RoHS Compliant. All substitute parts are either RoHS Compliant or ROHS3 Compliant, maintaining regulatory alignment for new designs and applications.

Q: What wire gauge compatibility exists across all parts?

A: The original 1785920000 specifies 14-22 AWG. All substitute parts support this range or broader ranges (1426060000 supports 12-24 AWG). Wire gauge compatibility is maintained across all options.

Q: Does current rating affect substitution suitability?

A: The original part is rated 10 A. Substitute parts range from 10 A (1776266-2) to 20 A (1426060000) to 15 A (ED500/2DS, EDZ500/2DS, OSTTA024163, OSTTC020162). Higher current ratings provide design margin but do not prevent substitution in applications requiring 10 A or less. Current rating selection depends on circuit requirements and thermal design considerations.

Q: What pitch variations exist among substitute options?

A: The original 1785920000 specifies 5.08mm pitch. The 1426060000 maintains 5.08mm pitch. Alternatives include 5.00mm pitch (1776266-2, ED500/2DS, OSTTC020162) and 5.08mm pitch (EDZ500/2DS, OSTTA024163). Pitch selection directly impacts PCB footprint design and connector spacing.

Q: How does operating temperature range affect part selection?

A: The original part operates -20°C ~ 100°C. Substitute parts offer extended ranges: 1426060000 (-50°C ~ 120°C), 1776266-2 (-55°C ~ 105°C), and On Shore Technology parts (-30°C ~ 105°C). Extended temperature ranges provide thermal margin for demanding environments but do not restrict use in standard temperature applications.

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