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Cinch Connectivity Solutions 20-141 Barrier Block Terminal Connector
Part Overview
The Cinch Connectivity Solutions 20-141 is a 20-circuit barrier block terminal connector with 0.438" (11.12mm) pitch spacing, designed for panel and chassis mounting applications. This connector features dual-wall barrier construction, screw termination on the top, and closed bottom termination. The part is currently active in production with 952 units in stock.
Equivalent and substitute parts are identified when alternative manufacturers offer barrier block connectors with compatible electrical ratings, mechanical dimensions, and termination methods that satisfy the same application requirements.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | 20-141 |
| Manufacturer | Cinch Connectivity Solutions |
| Terminal Block Type | Barrier Block |
| Number of Circuits | 20 |
| Pitch | 0.438" (11.12mm) |
| Number of Rows | 2 |
| Current Rating | 20A |
| Voltage Rating | 250V |
| Wire Gauge | 14 AWG |
| Top Termination | Screws |
| Barrier Type | 2 Wall (Dual) |
| Mounting Type | Chassis, Panel |
| Operating Temperature Range | -55°F to 300°F |
| RoHS Status | RoHS Compliant |
Substitute Part Grouping Explanation
Substitute parts for the 20-141 are identified based on the following critical parameters that determine functional compatibility:
- Circuit Configuration: 20 circuits with 0.438" (11.12mm) pitch and 2-row arrangement
- Termination Method: Screw-based top termination with closed bottom configuration
- Barrier Construction: Dual-wall (2 Wall) barrier type for electrical isolation
- Electrical Performance: Current and voltage ratings sufficient for the application
- Wire Gauge Compatibility: Support for 14 AWG wire gauge
- Mounting Interface: Chassis and panel mounting capability
- Mechanical Footprint: Identical pitch and circuit count ensure direct physical compatibility
The Molex 0387800120 meets these substitution criteria with compatible circuit configuration, pitch spacing, termination method, and mounting type. Differences in current rating (15A vs. 20A), voltage rating (300V vs. 250V), wire gauge range (14-22 AWG vs. 14 AWG), and insulation material do not prevent substitution when the application requirements fall within the substitute part's specifications.
Parameter Comparison
| Parameter | Cinch 20-141 | Molex 0387800120 |
|---|---|---|
| Manufacturer Part Number | 20-141 | 0387800120 |
| Manufacturer | Cinch Connectivity Solutions | Molex |
| Terminal Block Type | Barrier Block | Barrier Block |
| Number of Circuits | 20 | 20 |
| Pitch | 0.438" (11.12mm) | 0.438" (11.12mm) |
| Number of Rows | 2 | 2 |
| Current Rating (Amps) | 20A | 15A |
| Voltage Rating | 250V | 300V |
| Wire Gauge | 14 AWG | 14-22 AWG |
| Top Termination | Screws | Screws |
| Barrier Type | 2 Wall (Dual) | 2 Wall (Dual) |
| Mounting Type | Chassis, Panel | Chassis, Panel |
| Color | Black | Black |
| RoHS Status | RoHS Compliant | ROHS3 Compliant |
Engineering Selection Recommendations
Cinch Connectivity Solutions 20-141: Select this part when the application requires the specified 20A current rating and 250V voltage rating. The part is RoHS Compliant and actively produced with adequate inventory availability.
Molex 0387800120: This substitute is suitable for applications where the 15A current rating and 300V voltage rating meet or exceed system requirements. The part supports an expanded wire gauge range (14-22 AWG) and carries ROHS3 Compliant certification. Higher inventory availability (2649 units) may support supply chain requirements.
Selection between these parts depends on whether the application's electrical requirements align with each part's current and voltage ratings. Both parts share identical mechanical interfaces, circuit configuration, and termination methods.
Frequently Asked Questions (FAQ)
Q: Can the Molex 0387800120 replace the Cinch 20-141 in all applications?
A: The Molex part is suitable for applications where the system current requirement does not exceed 15A and the voltage requirement does not exceed 300V. The identical pitch, circuit count, and termination method ensure mechanical and functional compatibility within these electrical parameters.
Q: What is the significance of the pitch specification in barrier block selection?
A: Pitch (0.438" / 11.12mm) defines the center-to-center spacing between circuits. Both parts share identical pitch, ensuring they occupy the same physical footprint and mount to identical panel cutouts and PCB layouts.
Q: Are there differences in wire gauge acceptance between these parts?
A: The Cinch 20-141 accepts 14 AWG wire. The Molex 0387800120 accepts 14-22 AWG wire. Both parts accommodate 14 AWG, making them compatible for applications using this gauge.
Q: How do the insulation materials differ between these parts?
A: The Cinch part uses Phenol Formaldehyde (Phenolic) insulation. The Molex part uses Thermoplastic insulation with UL94 V-0 flammability rating. Both materials provide electrical isolation appropriate for barrier block applications.
Q: What does the dual-wall (2 Wall) barrier type provide?
A: The 2 Wall barrier configuration provides electrical isolation between adjacent circuits, preventing cross-talk and ensuring circuit separation in multi-circuit connector applications.
Q: Are both parts suitable for the same mounting configurations?
A: Yes. Both parts support Chassis and Panel mounting types, ensuring compatibility with identical installation methods and mechanical interfaces.
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