1. Safety Warnings
This section contains MANDATORY compliance terms. Violation of these operating procedures will result in product damage, circuit failure, and may cause serious safety hazards including fire and electric shock.
- Strictly prohibited from exceeding the rated power, rated voltage, and rated current marked on the product. Overloading will cause rapid temperature rise, burning, smoke emission, and pose a fire risk.
- The product operating ambient temperature must be controlled within -55°C to +125°C. Avoid proximity to open flames and high-temperature heat sources (such as heating elements or high-power chips). When used in non-ventilated environments, ensure adequate heat dissipation space is reserved.
- Prohibited for use in flammable/explosive environments, high-humidity conditions (relative humidity >85%), strongly corrosive atmospheres, or high-dust environments to prevent pin oxidation, film layer corrosion, and resultant short circuits or parameter drift.
- The resistor surface will experience temperature rise during continuous operation (noticeable for high-power specifications). Do not touch with bare hands to avoid high-temperature burns. Do not touch pins or body until cooled after soldering.
- Low-power through-hole metal film resistors are precision small components. Keep out of reach of children and pets to prevent accidental ingestion or pin puncture injuries.
- Disassembly, grinding, or modification of the resistor body is strictly prohibited. The product contains no user-serviceable internal components. Disassembly will damage the insulation protection layer, resulting in resistance failure or short circuits.
- During installation and soldering, strictly prohibit solder drips onto the insulating lacquer coating of the resistor body. The high temperature of molten solder will damage the film layer, causing performance degradation or immediate product scrapping.
- Discarded resistors constitute electronic waste. Do not dispose of with household garbage. They must be transferred to designated electronic waste recycling facilities in compliance with environmental protection regulations.
2. Product Overview
This CHANZON 1W 1% Metal Film Resistor Kit provides a comprehensive assortment of 175 high-precision resistors, with 35 different values (5 pieces each). These resistors are designed for various electronic projects requiring stable and accurate resistance, offering excellent performance and reliability.
Video: Overview of the CHANZON Resistor Kit, showcasing the organized packaging and variety of resistor values.
Image: The CHANZON 1W 1% Resistor Kit, displaying the various resistor values and the included color code guide.
Key Features:
- High Precision: 1% tolerance for accurate circuit performance.
- Durable Construction: Features 0.6mm thick legs for robust connections.
- Clear Labeling: Resistor values are pre-printed for easy identification.
- Good Insulation: Ensures reliable and safe operation.
- Environment-Friendly: RoHS compliant materials.
- Organized Packaging: Comes in a well-packaged box for easy storage and access.
Image: Feature comparison illustrating the quality and benefits of CHANZON 1W resistors.
3. Specifications
| Attribute | Value |
|---|---|
| Brand Name | CHANZON |
| Type | Metal Film Resistor |
| Accuracy | 1% |
| Rated Power | 1 Watt |
| Resistance Tolerance | 1mohm 560 2 2.2K 22 47 220 680 2200 4700 100K 22kohm Mega Mohm Kohm R |
| Temperature Coefficient | 47 150 220 2ohm 470ohm R1 100r 150K 680K 10kohm Kilo mohm Color Code |
| Operating Temperature | Through Hole 2 68 150ohm 220ohm 1000 2.2ohm 47ohm 330ohm 330ohm 22K |
| Package Type | 0.1ohm 1ohm 10ohm 100ohm 1kohm 1R 10R 560R 470K 33 2000 K megohm Fixed |
| Condition | New |
| Origin | Mainland China |
| is_customized | Yes |
| High-concerned chemical | None |
Physical Dimensions:
Image: Detailed dimensions of a single 1W resistor.
- Lead Diameter: 0.6mm / 0.024 inch
- Body Diameter: 4.5mm / 0.177 inch
- Body Length: 11mm / 0.433 inch
- Lead Length (each side): 30mm / 1.181 inch
- Total Length: 71mm / 2.795 inch
4. Installation and Usage
4.1 Soldering and Installation Requirements
- Soldering Equipment: Use a temperature-controlled soldering iron set to 350°C ±20°C. Soldering time must be <3 seconds per cycle to avoid prolonged high-temperature exposure that could damage the lead plating and resistive film layer.
- Mounting Clearance: Maintain a distance of ≥5mm between the resistor body and the PCB solder pad during installation to prevent heat transfer from poor PCB heat dissipation; strictly prohibited from bending leads flush against the resistor body.
- Lead Forming: Leads may be bent to accommodate PCB layout requirements, but the bend point must be ≥3mm from the resistor body. Recommended bending angle is <90°; avoid violent bending to prevent lead fracture or internal film layer detachment.
- Surface Preparation: Clean PCB solder pads and resistor leads before soldering to remove oxide layers and oil contamination, ensuring good solder wetting and preventing cold solder joints or poor electrical contact.
- Spacing Requirements: When mounting multiple resistors side by side, maintain ≥2mm spacing between adjacent resistors (≥5mm for high-power specifications) to ensure ventilation and heat dissipation, preventing mutual thermal influence between adjacent components.
4.2 Circuit Usage Requirements
- Power Compatibility: This resistor is suitable for both DC and AC applications. Precisely match resistance value and power ratings to circuit design requirements; strictly prohibited from substituting low-power resistors for high-power applications.
- Surge Protection: Avoid exposing resistors to standalone instantaneous high voltage or high current surges (such as inrush currents). If surge risks exist in the circuit, employ surge protection and current-limiting components.
- Humidity Precautions: Before use in high-humidity environments, verify the product shows no moisture absorption and leads show no oxidation; otherwise, insulation resistance degradation and circuit leakage may occur.
- EMI Considerations: When used in precision circuits (such as instrumentation and testing equipment), avoid locating resistors near strong electromagnetic interference sources to prevent parameter drift affecting circuit accuracy.
5. Operating Principles: Resistor Color Code
Resistors are typically marked with color bands to indicate their resistance value, tolerance, and sometimes temperature coefficient. This kit includes a mix of 4-band and 5-band resistors. Refer to the chart below to correctly identify resistor values.
Image: Detailed resistor color code chart for 4-band and 5-band resistors.
How to Read Resistor Color Codes:
- 4-Band Resistors: The first two bands represent the significant digits, the third band is the multiplier, and the fourth band is the tolerance.
- 5-Band Resistors: The first three bands represent the significant digits, the fourth band is the multiplier, and the fifth band is the tolerance.
- Tolerance: Gold (±5%), Silver (±10%), Brown (±1%), Red (±2%), Green (±0.5%), Blue (±0.25%), Purple (±0.10%), Gray (±0.05%).
6. Storage and Maintenance
6.1 Storage Environment
- Before use, store products in sealed packaging at normal temperature (25°C ±5°C) and normal humidity (relative humidity 40%~70%).
- Keep away from corrosive gases and direct sunlight to prevent lead oxidation from long-term air exposure.
6.2 Shelf Life
- Under sealed packaging conditions, the product warranty period is 2 years (from date of manufacture).
- After expiration, resistance value and insulation parameters must be retested before use.
6.3 Post-Opening Handling
- Use opened products promptly.
- Reseal remaining products with desiccant to prevent moisture absorption and oxidation.
6.4 Inspection Protocol
- During routine maintenance, immediately discontinue use and replace with new products of identical specifications if the resistor body shows paint cracking, peeling, lead oxidation/rust, surface blackening, or deformation.
6.5 Testing Precautions
- During circuit inspection, do not use multimeter high-resistance ranges for prolonged measurements, as the internal voltage may damage the resistive film.
- Always disconnect circuit power before measurement to prevent damage to instruments and products from energized testing.
7. Troubleshooting
- Resistance Failure or Short Circuits: Ensure rated power, voltage, and current are not exceeded. Check for proper soldering and lead forming to prevent damage to the insulation layer.
- Parameter Drift or Inaccuracy: Verify resistors are not exposed to strong electromagnetic interference (EMI) sources. Ensure proper storage conditions to prevent moisture absorption or oxidation.
- Physical Damage (Cracking, Peeling, Oxidation): Inspect resistors for any signs of damage before use. Replace any damaged components immediately. Avoid excessive heat during soldering.
- Overheating: Ensure adequate heat dissipation and ventilation, especially for high-power applications. Do not touch resistors until they have cooled after operation.
8. User Tips
- Users have noted the fast delivery and good quality of these resistors, making them a reliable choice for projects.
- The kit is well-organized, which helps in quickly finding the required resistor values.
9. Warranty and Support
This product comes with a 2-year warranty from the date of manufacture under sealed packaging conditions. For technical support, inquiries, or warranty claims, please contact the CHANZON Tech Store directly through the platform where the product was purchased.
A detailed user manual in PDF format is also available for download: Download User Manual (PDF)