Weidmüller 1646350000 Terminal Block Header - Equivalent & Substitute Parts

Part Overview

The Weidmüller 1646350000 is a 12-position terminal block header with female sockets, 0.200" (5.08mm) pitch, designed for vertical through-hole mounting with solder termination. This component is part of the Omnimate BL 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
Number of Positions	12
Pitch	0.200" (5.08mm)
Header Orientation	Vertical
Termination Style	Solder
Mounting Type	Through Hole
Type	Header, Female Sockets
Voltage - UL	300 V
Current - UL	15 A
Material Flammability Rating	UL94 V-0
Operating Temperature Range	-20°C ~ 100°C

Substitute Part Grouping Explanation

Substitution of the Weidmüller 1646350000 is determined by strict alignment of the following critical parameters:

Position Count & Pitch: Both main and substitute parts must have 12 positions at 0.200" (5.08mm) pitch to ensure mechanical and electrical compatibility with mating connectors.
Header Type & Orientation: Female socket configuration with vertical orientation is required for direct replacement in existing PCB layouts.
Termination & Mounting: Solder termination and through-hole mounting must be maintained for assembly compatibility.
Electrical Ratings: Voltage and current ratings must meet or exceed the application requirements (300 V UL, 15 A UL minimum).
Flammability Compliance: UL94 V-0 rating ensures material safety standards are maintained.

The On Shore Technology Inc. OSTV7125150 meets all these critical parameters and qualifies as a direct substitute.

Parameter Comparison

Parameter	Weidmüller 1646350000	On Shore Technology OSTV7125150
Manufacturer	Weidmüller	On Shore Technology Inc.
Number of Positions	12	12
Positions Per Level	12	12
Number of Levels	1	1
Pitch	0.200" (5.08mm)	0.200" (5.08mm)
Header Orientation	Vertical	Vertical
Type	Header, Female Sockets	Header, Female Sockets
Termination Style	Solder	Solder
Mounting Type	Through Hole	Through Hole
Voltage - UL	300 V	300 V
Current - UL	15 A	20 A
Material Flammability Rating	UL94 V-0	UL94 V-0
Operating Temperature Range	-20°C ~ 100°C	-30°C ~ 105°C
Features	Retention Latches	Retention Latches
Product Status	Obsolete	Active
REACH Status	REACH Unaffected	REACH Unaffected
ECCN	EAR99	EAR99

Engineering Selection Recommendations

The On Shore Technology Inc. OSTV7125150 is a qualified substitute for the obsolete Weidmüller 1646350000. Selection is based on the following engineering criteria:

Mechanical Compatibility: Identical pitch (5.08mm), position count (12), and vertical orientation ensure direct PCB footprint compatibility.
Electrical Performance: The OSTV7125150 exceeds the original part's current rating (20 A vs. 15 A UL) while maintaining the same voltage specification (300 V UL), providing equivalent or superior electrical performance.
Thermal Range: The substitute part's extended operating temperature range (-30°C ~ 105°C vs. -20°C ~ 100°C) accommodates broader environmental conditions.
Regulatory Compliance: Both parts maintain UL94 V-0 flammability rating and REACH Unaffected status, ensuring compliance with safety and environmental standards.
Product Availability: The OSTV7125150 is active in production, providing long-term supply security compared to the obsolete Weidmüller part.

Frequently Asked Questions (FAQ)

Q: Can the OSTV7125150 be used as a direct replacement for the Weidmüller 1646350000?

A: Yes. Both parts share identical mechanical specifications (12 positions, 5.08mm pitch, vertical orientation, through-hole solder termination) and equivalent electrical ratings (300 V UL, with the substitute rated for 20 A vs. 15 A). The parts are mechanically and electrically interchangeable.

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

A: The primary differences are manufacturer, contact material (Copper Alloy vs. Phosphor Bronze), housing material (PBT vs. Thermoplastic), contact tail length (0.177" vs. 0.138"), and insulation height (0.797" vs. 0.748"). The OSTV7125150 offers a wider operating temperature range and higher current rating. Despite these material and dimensional variations, both parts meet the same functional and electrical requirements.

Q: Are there any compatibility concerns with PCB assembly?

A: The slight differences in contact tail length (0.177" vs. 0.138") and insulation height (0.797" vs. 0.748") may require PCB footprint verification. Ensure the PCB design accommodates the OSTV7125150's physical dimensions. Retention latches are present on both parts, maintaining mechanical security during mating.

Q: What certifications and compliance standards apply to the substitute part?

A: The OSTV7125150 maintains UL94 V-0 flammability rating, REACH Unaffected status, and EAR99 export classification, matching the regulatory profile of the original Weidmüller part. The substitute is RoHS3 compliant with MSL 1 (Unlimited) moisture sensitivity level.

Q: Is the OSTV7125150 available in production quantities?

A: Yes. The OSTV7125150 is classified as active product status with current inventory availability, providing reliable supply for both replacement and new design applications.

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