1. Introduction
This manual provides essential information for the proper use, handling, and application of CHANZON 0805 SMD (Surface Mount Device) Resistors with a resistance of 1.6 Megaohms (1.6MΩ). These components are designed for integration into various electronic circuits, offering precise resistance in a compact form factor. Adherence to these guidelines will ensure optimal performance and longevity of the resistors.
2. Product Overview
The CHANZON 0805 SMD Resistor is a thick film chip resistor, characterized by its small size and high reliability. It is suitable for a wide range of electronic applications where space is a premium. Each package contains 100 pieces of 1.6MΩ resistors with a ±1% tolerance and a power rating of 1/8W (0.125W). These resistors are RoHS certified, indicating compliance with environmental standards.
Image 2.1: A clear plastic bag containing 100 CHANZON 0805 SMD resistors, labeled with size, tolerance, resistance (1.6MΩ), and quantity.
Image 2.2: A magnified view of a single 0805 SMD resistor, showing its black body and metallic end caps.
3. Specifications
Key technical specifications for the CHANZON 0805 SMD Resistor:
| Parameter | Value |
|---|---|
| Resistor Type | SMD Thick Film Chip Resistor |
| Package Size | 0805 (2.0mm x 1.25mm / 0.079inch x 0.049inch) |
| Resistance | 1.6 MΩ (Megaohms) |
| Tolerance | ±1% |
| Power Rating | 1/8W (0.125W) |
| Operating Temperature Range | Typically -55°C to +155°C (refer to datasheet for exact range) |
| Certification | RoHS Compliant |
| Quantity | 100 pieces |
Image 3.1: Technical drawing illustrating the dimensions of an 0805 package SMD resistor, showing length, width, and thickness.
4. Setup and Installation
Proper handling and installation are crucial for SMD components. Follow these guidelines:
- Storage: Store resistors in their original packaging in a dry, temperature-controlled environment to prevent moisture absorption and damage.
- Handling: Use anti-static precautions (ESD-safe workstation, wrist strap) when handling SMD components to prevent damage from electrostatic discharge. Use tweezers for precise placement due to their small size.
- Placement: Ensure correct orientation if applicable (though resistors are non-polarized). Place the resistor accurately onto the solder pads on the Printed Circuit Board (PCB).
- Soldering: These resistors are designed for surface mount soldering processes, including reflow soldering and hand soldering.
- Reflow Soldering: Follow the recommended temperature profile for your solder paste and PCB.
- Hand Soldering: Use a fine-tipped soldering iron. Apply a small amount of solder to one pad, place the resistor, then solder the other pad. Minimize heat exposure to prevent component damage.
- Inspection: After soldering, visually inspect joints for proper wetting, absence of shorts, and correct component alignment.
Image 4.1: Multiple 0805 SMD resistors arranged on a tape carrier, ready for automated pick-and-place assembly.
5. Operating Principles
A resistor is a passive two-terminal electrical component that implements electrical resistance as a circuit element. In a circuit, its primary function is to reduce current flow, adjust signal levels, divide voltages, bias active elements, and terminate transmission lines, among other uses. The 1.6MΩ resistance value means it will significantly impede current flow in a circuit according to Ohm's Law (V = IR).
6. Maintenance
SMD resistors are generally maintenance-free once properly installed. However, consider the following:
- Cleanliness: Keep the PCB and components free from dust, dirt, and moisture. Use appropriate cleaning agents if necessary, ensuring they are safe for electronic components.
- Environmental Conditions: Operate the circuit within the specified environmental conditions (temperature, humidity) to prevent premature component degradation.
- Physical Damage: Avoid applying excessive mechanical stress to the resistors or solder joints, which could lead to cracks or detachment.
7. Troubleshooting
If a circuit incorporating these resistors is not functioning as expected, consider these troubleshooting steps:
- Incorrect Resistance: Verify the resistor value using a multimeter. Ensure the correct 1.6MΩ resistor was used in the correct location.
- Poor Solder Joint: Inspect solder joints for cold joints, bridges, or insufficient solder. Re-solder if necessary.
- Component Damage: Check for visible damage to the resistor (e.g., cracks, discoloration) which might indicate overheating or mechanical stress. Replace damaged components.
- Circuit Design Error: Confirm that the resistor is correctly integrated into the circuit design and that its power rating is sufficient for the application.
8. Safety Information
- ESD Precautions: Always use appropriate Electrostatic Discharge (ESD) protection when handling electronic components to prevent damage.
- Soldering Safety: Use proper ventilation when soldering to avoid inhaling fumes. Wear safety glasses to protect eyes from solder splashes.
- Small Parts: These resistors are very small and can be a choking hazard. Keep them out of reach of children.
- Electrical Safety: Ensure power is disconnected from circuits before installing or removing components to prevent electrical shock.
9. Warranty and Support
For specific warranty information or technical support regarding your CHANZON 0805 SMD Resistors, please refer to the purchase documentation or contact the seller directly through the platform where the product was acquired. Ensure you have your order details available for faster assistance.
