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Weidmüller 1786650000 Terminal Block - Equivalent & Substitute Parts
Part Overview
The Weidmüller 1786650000 is an 8-position wire-to-board terminal block designed for vertical PCB mounting with 0.300" (7.62mm) pitch spacing. This component is classified as obsolete, making identification of suitable substitute parts essential for ongoing system maintenance and new design implementations. The terminal block accommodates wire gauges from 10-22 AWG with a rated current capacity of 30 A and voltage rating of 300 V, utilizing screw-clamp wire termination for secure electrical connections.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | 1786650000 |
| Manufacturer | Weidmüller |
| Category | Terminal Blocks |
| Series | TOP4GS |
| Positions Per Level | 8 |
| Pitch | 0.300" (7.62mm) |
| Mating Orientation | Vertical with Board |
| Current Rating | 30 A |
| Voltage Rating | 300 V |
| Wire Gauge | 10-22 AWG |
| Mounting Type | Through Hole |
| Wire Termination | Screw - TOP Clamp |
| Operating Temperature Range | -20°C ~ 100°C |
| Housing Material | Polyamide (PA66), Nylon 6/6 |
| Contact Material - Plating | Copper Tin Alloy - Tin Plated |
| Screw Thread | M3 |
| Torque - Screw | 0.5-0.6 Nm (4.4-5.3 Lb-In) |
| Product Status | Obsolete |
Substitute Part Grouping Explanation
Substitution eligibility for the Weidmüller 1786650000 is determined by the following critical parameters:
- Electrical Compatibility: Current rating (30 A), voltage rating (300 V), and wire gauge acceptance range must meet or exceed the original specification
- Mechanical Compatibility: Pitch spacing (0.300" / 7.62mm), position count (8), mating orientation (vertical with board), and mounting type (through hole) must be identical
- Termination Method: Wire termination must utilize screw-clamp technology consistent with TOP series design
- Thermal Performance: Operating temperature range must encompass the original specification range
- Material and Contact Specifications: Housing material and contact plating must maintain electrical and environmental performance standards
The substitute part 1786560000 meets these criteria while offering enhanced specifications in wire gauge acceptance and operating temperature range, with active product status and RoHS compliance.
Parameter Comparison
| Parameter | 1786650000 (Main Part) | 1786560000 (Substitute) |
|---|---|---|
| Manufacturer | Weidmüller | Weidmüller |
| Series | TOP4GS | TOP4GS |
| Positions Per Level | 8 | 8 |
| Pitch | 0.300" (7.62mm) | 0.300" (7.62mm) |
| Mating Orientation | Vertical with Board | Vertical with Board |
| Current Rating | 30 A | 30 A |
| Voltage Rating | 300 V | 300 V |
| Wire Gauge | 10-22 AWG | 10-26 AWG |
| Mounting Type | Through Hole | Through Hole |
| Wire Termination | Screw - TOP Clamp | Screw - TOP Clamp |
| Operating Temperature Range | -20°C ~ 100°C | -50°C ~ 100°C |
| Housing Material | Polyamide (PA66), Nylon 6/6 | Polyamide (PA), Nylon |
| Contact Material - Plating | Copper Tin Alloy - Tin Plated | Electrolytic Copper - Tin Plated |
| Screw Thread | M3 | M3 |
| Torque - Screw | 0.5-0.6 Nm (4.4-5.3 Lb-In) | 0.5-0.6 Nm (4.4-5.3 Lb-In) |
| Product Status | Obsolete | Active |
| RoHS Status | Not specified | RoHS Compliant |
Engineering Selection Recommendations
The Weidmüller 1786560000 is a direct substitute for the obsolete 1786650000 based on identical electrical ratings, mechanical dimensions, and termination methodology. The substitute part maintains all critical compatibility parameters while offering the following advantages:
- Active Product Status: The 1786560000 is currently in active production, ensuring long-term availability and supply chain continuity
- Enhanced Wire Gauge Range: Acceptance of 10-26 AWG wire provides greater flexibility compared to the 10-22 AWG limitation of the original part
- Extended Temperature Range: Operating capability from -50°C to 100°C exceeds the original -20°C to 100°C specification, supporting broader environmental applications
- RoHS Compliance: The substitute part meets RoHS regulatory requirements, supporting compliance-driven procurement and environmental standards
- Consistent Electrical Performance: Identical current (30 A) and voltage (300 V) ratings ensure direct functional equivalence in existing circuit designs
Selection of the 1786560000 is appropriate for both replacement of obsolete inventory and new design implementations requiring 8-position, 7.62mm pitch terminal block functionality.
Frequently Asked Questions (FAQ)
Q: Can the 1786560000 be used as a direct replacement for the 1786650000 in existing PCB designs?
A: Yes. Both parts share identical pitch spacing (0.300" / 7.62mm), position count (8), mounting type (through hole), and electrical ratings (30 A, 300 V). PCB footprints and circuit designs require no modification.
Q: What is the significance of the wire gauge difference between the two parts?
A: The 1786650000 accepts 10-22 AWG wire, while the 1786560000 accepts 10-26 AWG wire. The substitute part's expanded range accommodates smaller gauge conductors without compromising compatibility with the original 10-22 AWG specification range.
Q: Does the extended operating temperature range of the 1786560000 affect compatibility?
A: No. The substitute part's -50°C to 100°C range encompasses the original part's -20°C to 100°C specification. Systems designed for the original temperature range operate within the substitute part's qualified operating envelope.
Q: Are there packaging differences between these parts?
A: The 1786650000 packaging is not specified in available documentation. The 1786560000 is supplied in bulk packaging. Verify packaging requirements for your procurement process.
Q: What is the impact of RoHS compliance on part selection?
A: The 1786560000 is RoHS compliant, meeting regulatory requirements for restricted hazardous substances. If your application or market requires RoHS compliance, the substitute part satisfies this requirement.
Q: Are the screw termination specifications identical?
A: Yes. Both parts utilize M3 screw threads with identical torque specifications of 0.5-0.6 Nm (4.4-5.3 Lb-In), ensuring consistent assembly procedures and electrical connection reliability.
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