Slide switches are a common type of electrical switch used to control the flow of current in electronic circuits. They are typically operated by sliding a lever or button, which moves a contact from one position to another. This simple yet effective mechanism makes them ideal for a wide range of applications where manual control is needed. Below are some key details about slide switches: **Basic Structure**: A slide switch consists of several components including a housing (often made of metal or plastic), a movable actuator, contacts, and internal wiring. The design allows for a compact and durable construction that can withstand repeated use. **Working Principle**: When the switch is moved, it either completes or breaks an electrical circuit. The movement of the actuator causes the internal contacts to make or break the connection, allowing or stopping the flow of electricity. **Performance Specifications**: - **Rated Power**: DC 50V, 0.3A - **Operating Temperature Range**: -20°C to 60°C **Electrical Performance Tests**: 1. **Contact Resistance Test**: - Tested under 100 mA. - Must be below 30 milliohms. 2. **Insulation Resistance Test**: - Apply 500V DC for 1 minute. - Measured between contacts and between the body and base. - Must exceed 100 megohms. 3. **Withstand Voltage Test**: - Apply AC 500V (50–60Hz) for 1 minute with 0.5mA sensitivity. - No insulation damage or anomalies allowed. **Mechanical Performance Tests**: - **Operating Force**: Typically 250 ± 50gf. - **Terminal Strength**: Apply 500gf in any direction for 1 minute. - **No cracks or looseness in the base.** **Environmental Conditions for Testing**: - Temperature: 5°C to 35°C - Humidity: 45% to 85% - Air Pressure: 80kPa to 106kPa **Durability Tests**: - **Solderability Test**: - Top of terminal immersed in solder bath at 230 ± 5°C for 3 ± 0.5 seconds. - Solder area must be over 80%. - **Life Test (No Load)**: - 100,000 cycles at 60 cycles per minute. - Contact resistance must not exceed 200mΩ. **Thermal and Environmental Tests**: - **Heat Resistance**: 85 ± 2°C for 96 hours. - **Cold Test**: 40 ± 2°C, 90–96% humidity for 96 hours. - **Humidity Test**: Same as cold test conditions. - All tests require no visible damage and full functionality. **Component Materials and Processes**: 1. **Iron Shell**: Made of iron, treated with nickel plating or blackening to prevent oxidation. 2. **Plastic Handle**: Usually POM, or PA nylon for fire-resistant applications. Processed via injection molding. 3. **Terminals**: Phosphor bronze, silver-plated. 4. **Insulation Base**: Electric wood board, stamped. 5. **Contact Chip**: Phosphor bronze, silver-plated. 6. **Round Wave Beads**: Stainless steel, nickel-plated. 7. **Slingshot**: Bronze, stamped. 8. **Decorative Oil**: Non-toxic, eco-friendly oil used on terminals and base for aesthetics. **Applications**: Slide switches are widely used in various industries such as audio/video devices (MP3, MP4), digital products (cameras, video recorders), communication equipment (mobile phones, PDAs), security systems (intercoms, monitors), toys, computers, fitness equipment (body fat scales, treadmills), and medical devices (blood pressure monitors, thermometers). Kesta Switch Factory
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