Description
Compact Short Female 4mm Banana Plug Socket – Green (B1)
Product Overview
The Model B1 Short Female 4mm Banana Plug Socket is an ultra-compact, low-profile chassis-mount jack designed for applications where internal enclosure depth is highly restricted. Following the exact structural footprint shown in image_887ae3.jpg, it features a shortened barrel and threaded termination stud to maximize space efficiency behind the panel while ensuring robust mechanical support.
With its fully insulated green outer rim and high-conductivity internal brass sleeve, it serves as the industry-standard choice for earth grounding, reference points, or safe chassis bonding in tight hardware environments.
Key Features
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Space-Saving Short Barrel: Ultra-short internal profile reduces enclosure depth requirements, making it ideal for shallow casing designs and crowded multi-layer PCBs.
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Universal 4mm Compatibility: Fully compatible with all standard 4mm male banana plugs, uninsulated patch cords, and test probes.
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Streamlined Panel Mount: Easy front-insertion or rear-lock mounting via a low-profile fastening nut and solder lug terminal, seating tightly against plastic or metal equipment walls.
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Visual Earth/Ground Identification: Solid green finish provides immediate, unambiguous visual identification for protective earth (PE), chassis ground, or reference shield lines.
Technical Specifications
| Parameter | Specification |
| Product Model | B1 (Short Variant) |
| Color | Green (Earth Ground / Protective Ground) |
| Compatible Plug Size | 4.0 mm Standard Banana Plug |
| Mounting Type | Panel Mount / Chassis Mount (Low Depth) |
| Termination Style | Short Rear Threaded Stud with Solder Lug & Hex Nut |
| Material (Conductor) | Nickel-Plated Brass or Zinc Alloy |
| Material (Insulation) | High-Insulation ABS / Nylon Rim |
| Current Rating | 10A Max |
| Contact Resistance | $\le 5\text{ m}\Omega$ |
Applications
The ideal port choice for space-constrained diagnostic networks and miniature electrical instruments:
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Dedicated Earth Grounding: Quick-access chassis grounding points for laboratory power supplies, testing benches, and sensitive measurement rigs.
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Shallow Enclosures: Low-profile DIY desktop amplifier cases, aluminum project boxes, and packed structural control nodes.
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Dense Matrix Boards: High-density test panels where numerous 4mm ports of multiple colors must be placed in a tight layout with minimal space behind the panel.
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Audio & Instrument Shielding: Providing clean, low-resistance ground reference paths to eliminate electrical noise in compact instrumentation.
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