| Image | Part Number | Description / PDF | Quantity | Rfq |
|---|---|---|---|---|
 |
Grayhill, Inc. |
CONN BIND POST SPRING-LOAD BLACK |
1286 |
|
 |
Keystone Electronics Corp. |
CONN BIND POST DUAL HEX BLK/RED |
2073891 |
|
 |
Keystone Electronics Corp. |
CONN BIND POST KNURLED BLACK |
5194733 |
|
 |
Pomona Electronics |
CONN BIND POST MINI KNURLED BLK |
0 |
|
 |
Keystone Electronics Corp. |
CONN BIND POST HEX RED |
143 |
|
 |
Cliff |
SPRING TERMINAL M4L SPT3 RED |
0 |
|
 |
Cal Test Electronics |
CONN BIND POST KNURLED GREEN |
0 |
|
 |
Pomona Electronics |
CONN BIND POST KNURLED BLACK |
348 |
|
 |
Mueller Electric Co. |
CONN BIND POST KNURLED RED |
51466 |
|
 |
Vitelec / Cinch Connectivity Solutions |
CONN BIND POST KNURLED YELLOW |
1265 |
|
 |
Pomona Electronics |
CONN BIND POST DL FLUTD BLK/RED |
921 |
|
 |
Mueller Electric Co. |
CONN BIND POST FLUTED YELLOW |
10223 |
|
 |
Grayhill, Inc. |
CONN BIND POST KNURLED BLACK |
21 |
|
 |
Pomona Electronics |
CONN BIND POST KNURLED GRAY |
43 |
|
 |
Grayhill, Inc. |
CONN BIND POST SPRING-LOAD GREEN |
30 |
|
 |
Cal Test Electronics |
4MM SHEATHED BINDING POST, BLACK |
42 |
|
 |
NTE Electronics, Inc. |
BINDING POST DUAL 10 AMP |
496 |
|
 |
Pomona Electronics |
CONN BIND POST KNURLED BLACK |
1862 |
|
 |
Keystone Electronics Corp. |
CONN BIND POST HEX RED |
1203 |
|
 |
Cal Test Electronics |
CONN BIND POST KNURLED BLACK |
40 |
|
Banana connectors, tip connectors, and binding posts are essential electrical components for establishing reliable physical connections in various electronic systems. Banana connectors are single-wire contact plugs with a spring-loaded pin resembling a banana shape, while tip connectors refer to cylindrical contacts with distinct conductive zones (tip, ring, sleeve). Binding posts are threaded terminal posts enabling wire clamping or plug insertion. These components play critical roles in test equipment, audio systems, power distribution, and industrial instrumentation by ensuring signal integrity and electrical continuity.
| Type | Functional Features | Application Examples |
|---|---|---|
| Banana Connector | Dual-contact design with 4mm diameter, self-cleaning surface, polarization options | Multimeters, power amplifiers, laboratory instruments |
| Tip Connector | TR (Tip-Ring) and TS (Tip-Sleeve) configurations, 3.5mm/6.35mm standard sizes | Headphones, musical instruments, telecom equipment |
| Binding Post | Threaded design with 4mm/5mm diameter, accepts bare wires, banana plugs, or spade terminals | Speaker terminals, high-fidelity audio systems, test benches |
Typical construction consists of: - Conductive core (phosphor bronze, beryllium copper) - Plating layers (nickel, gold, or rhodium for corrosion resistance) - Insulation body (polypropylene, POM for dielectric strength) - Mechanical retention features (spring blades for banana connectors, screw clamps for binding posts) - Polarization markers (colored bands or physical keying)
| Parameter | Importance | Typical Values |
|---|---|---|
| Current Rating | Determines thermal load capacity | 1-15A DC/AC |
| Contact Resistance | Affects signal transmission quality | 5-20m |
| Dielectric Strength | Ensures electrical safety | 500-1500V RMS |
| Insertion Force | Impacts mating durability | 0.5-2.0N |
| Temperature Range | Defines operational environment limits | -40 C to +125 C |
Key industries include: - Test & Measurement (oscilloscopes, signal generators) - Audio Engineering (mixing consoles, instrument amplifiers) - Education (student laboratory equipment) - Industrial Automation (PLC signal interfaces) - Medical Devices (diagnostic equipment connectors) - Telecommunications (legacy telecom switches)
| Manufacturer | Representative Products |
|---|---|
| Amphenol Corporation | 412 Series Banana Connectors |
| Switchcraft Inc. | TA4F Switchcraft Tip Connectors |
| Neutrik AG | NC Series Binding Posts |
| Ethercon | Banana Plug Adapters |
Key selection criteria: - Current/voltage requirements - Environmental factors (humidity, vibration) - Termination method (solder/wire wrap) - Compatibility with existing infrastructure - EMI shielding requirements - Expected mating cycles (durability needs) - Regulatory certifications (CE, UL)
Emerging developments include: - Miniaturization for portable devices - Hybrid connectors integrating optical and electrical interfaces - Smart connectors with embedded identification chips - Eco-friendly plating materials (lead-free, RoHS compliance) - High-frequency optimized designs for RF applications - Increased use of composite materials for weight reduction
In professional audio systems, Neutrik binding posts (5-way design) enable dual banana plug connections for bi-wiring speaker setups, while Switchcraft 6.35mm tip connectors maintain balanced signal transmission between mixing consoles and stage equipment, achieving 110dB dynamic range in live sound reinforcement systems.