Weidmüller 1776282001 Terminal Block Header - Equivalent & Substitute Parts

Part Overview

The Weidmüller 1776282001 is a 17-position terminal block header with male pins, shrouded on four sides, featuring 0.200" (5.08mm) pitch vertical through-hole mounting. This component is part of the Omnimate SL series and is classified as obsolete. Due to its obsolete status, identifying equivalent substitute parts is essential for ongoing system maintenance, repairs, and new designs requiring compatible connectivity solutions.

Key Parameters

Parameter	Value
Manufacturer Part Number	1776282001
Manufacturer	Weidmüller
Category	Terminal Blocks
Type	Header, Male Pins, Shrouded (4 Side)
Number of Positions	17
Pitch	0.200" (5.08mm)
Header Orientation	Vertical
Termination Style	Solder
Mounting Type	Through Hole
Current - IEC	27.5A
Voltage - IEC	400 V
Current - UL	18.5 A
Voltage - UL	300 V
Operating Temperature	-50°C ~ 100°C
Material Flammability Rating	UL94 V-0
RoHS Status	RoHS Compliant
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution eligibility for the Weidmüller 1776282001 is determined by the following critical parameters:

Position Count & Pitch: 17 positions at 0.200" (5.08mm) spacing
Physical Configuration: Male pins, shrouded (4 side), vertical orientation, through-hole mounting
Electrical Ratings: Voltage and current ratings must meet or exceed application requirements
Termination Method: Solder termination compatibility
Compliance Standards: RoHS and material flammability ratings (UL94 V-0)
Environmental Range: Operating temperature compatibility

The substitute part A-TB508-OQ17CV from Assmann WSW Components meets these core substitution criteria. Both components share identical position count, pitch, shrouding configuration, orientation, and mounting method. Both are solder-terminated and maintain UL94 V-0 flammability compliance.

Parameter Comparison

Parameter	Weidmüller 1776282001	Assmann A-TB508-OQ17CV
Number of Positions	17	17
Pitch	0.200" (5.08mm)	0.200" (5.08mm)
Type	Header, Male Pins, Shrouded (4 Side)	Header, Male Pins, Shrouded (4 Side)
Header Orientation	Vertical	Vertical
Termination Style	Solder	Solder
Mounting Type	Through Hole	Through Hole
Current - UL	18.5 A	20 A
Voltage - UL	300 V	300 V
Operating Temperature	-50°C ~ 100°C	-40°C ~ 115°C
Material Flammability Rating	UL94 V-0	UL94 V-0
RoHS Status	RoHS Compliant	ROHS3 Compliant
Insulation Height	0.472" (12.00mm)	0.472" (12.00mm)

Engineering Selection Recommendations

The Assmann WSW Components A-TB508-OQ17CV is a direct functional substitute for the obsolete Weidmüller 1776282001. Both components are RoHS compliant and maintain UL94 V-0 flammability certification. The Assmann part is currently in active production status, ensuring availability for new designs and replacement applications.

The Assmann substitute provides equivalent or superior electrical performance: UL current rating of 20A versus 18.5A on the original part, with identical 300V UL voltage rating. Operating temperature range extends to 115°C maximum on the Assmann part compared to 100°C on the Weidmüller original, providing broader environmental compatibility.

Physical compatibility is confirmed across all critical dimensions: identical 17-position count, 5.08mm pitch, shrouded male pin configuration, vertical orientation, and through-hole solder termination. Insulation height matches at 0.472" (12.00mm).

Frequently Asked Questions (FAQ)

Q: Can the Assmann A-TB508-OQ17CV directly replace the Weidmüller 1776282001 in existing designs?

A: Yes. Both components share identical position count (17), pitch (5.08mm), shrouding configuration (4-side), orientation (vertical), and termination method (solder through-hole). Physical and electrical compatibility is confirmed across all specified parameters.

Q: What are the key differences between these two parts?

A: The primary differences are manufacturer, product status (Weidmüller is obsolete; Assmann is active), housing material (Weidmüller uses LCP glass-filled; Assmann uses thermoplastic), contact material (Weidmüller uses copper alloy; Assmann uses brass), and contact tail length (Weidmüller 0.059"; Assmann 0.157"). The Assmann part offers higher UL current rating (20A vs. 18.5A) and extended operating temperature range (-40°C to 115°C vs. -50°C to 100°C).

Q: Are both parts RoHS compliant?

A: Yes. The Weidmüller 1776282001 is RoHS Compliant, and the Assmann A-TB508-OQ17CV is ROHS3 Compliant. Both meet RoHS requirements.

Q: What is the significance of the different contact tail lengths?

A: The Weidmüller part has a contact tail length of 0.059" (1.50mm), while the Assmann substitute has 0.157" (4.00mm). This difference affects solder joint depth and PCB hole engagement. Verify PCB design accommodates the longer tail length of the Assmann part.

Q: Can I use the Assmann part in applications requiring the full -50°C to 100°C temperature range of the original?

A: The Assmann part operates from -40°C to 115°C. Applications requiring operation below -40°C would not be compatible with the Assmann substitute. Verify your application's minimum operating temperature requirement.

Q: Are there any packaging differences between these parts?

A: The Weidmüller part is listed with packaging designation "-" (not specified), while the Assmann part is supplied in Bulk packaging. Confirm bulk packaging meets your procurement and handling requirements.

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