0.25W 0.5% 10MΩ Metal Film Resistor - High Precision Axial Leaded Component for Industrial Applications
Price:
Negotiable
MOQ:
50000 Pieces
Delivery Time:
10~12 Workdays
Brand:
AMPFORT
Product Description
High Precision Metal Film Resistors
Metal film resistors represent advanced resistor technology featuring high precision, stable performance, and compact lightweight construction. These components are essential in electronic industries and military aerospace applications where high-accuracy requirements are critical.
Manufactured using high-temperature vacuum coating technology, these resistors feature nickel-chromium or similar alloys precisely deposited onto ceramic rods. After precision cutting and resistance value adjustment, they are sealed with epoxy resin protection. The axial lead design facilitates manual installation and maintenance, making them ideal for household appliances, communications equipment, and precision instruments.
Technical Advantages
• Cost-effective performance solution
• Superior noise reduction compared to carbon composition resistors
• Extensive operating range capabilities
• Exceptional long-term stability
• Tight tolerance specifications
• Minimal temperature coefficient for consistent performance
• Compact size for space-constrained applications
Application Areas
These precision resistors are engineered for demanding applications across multiple industries:
• Industrial automation and control systems
• Telecommunications infrastructure
• Medical diagnostic and monitoring equipment
• Automotive electronics and control modules
Electrical Performance Specifications
| Type | Rated Power | Max Working Voltage | Max Overload Voltage | Dielectric Withstanding Voltage | Resistance Range (Ω) |
|---|---|---|---|---|---|
| MF1/8W | 0.125W | 200V | 400V | 300V | 1Ω~1MΩ |
| MF1/4W | 0.25W | 250V | 500V | 500V | 1Ω~10MΩ |
| MF1/2W | 0.5W | 350V | 700V | 700V | 1Ω~10MΩ |
| MF1W | 1W | 500V | 800V | 900V | 1Ω~10MΩ |
| MF2W | 2W | 500V | 1000V | 1000V | 1Ω~10MΩ |
| MF3W | 3W | 500V | 1000V | 1000V | 1Ω~10MΩ |
| MF5W | 5W | 500V | 1000V | 1000V | 1Ω~10MΩ |
Power Derating Characteristics
Physical Specifications
Dimensions (mm)
Selection Guidelines
When choosing resistors for your application, consider these five critical factors to ensure optimal performance and reliability:
Resistor Type Selection
Different resistor types offer specific performance characteristics. Metal film resistors provide superior accuracy, stability, and lower temperature coefficients compared to carbon film alternatives. Consider operating frequency requirements and choose appropriate dielectric loss characteristics and package sizes.
Power Rating Considerations
Select resistors with power ratings that exceed your application requirements. For reliability, design circuits to operate at less than 50% of the rated power. For example, if your application requires 0.4W, choose a 1W rated resistor to ensure long-term stability.
Voltage Rating Assessment
While rated power increases with resistance, higher voltages create current density challenges that can lead to localized heating and premature aging.
Temperature Coefficient Evaluation
Resistance values drift with temperature changes. Film and wire-wound resistors typically offer lower temperature coefficients, making them suitable for applications with significant temperature variations.
Precision Requirements
For circuits requiring stable resistance values, such as measurement instruments and voltage detection systems, select precision resistors with appropriate tolerance levels.
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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
Dongguan Ampfort Electronics Co., Ltd.
Location
Floor 5,Changlong Industrial Building,No.6,Jiangnan Road,Jingshan,Chashan Town,Dongguan 523323,China
Contact Person
Annie Fang