10M Ohm 0.125W Carbon Film Resistor with 5% Tolerance for High Voltage Applications up to 500V
Price:
Negotiable
MOQ:
10000 Pieces
Delivery Time:
7-10 Workdays
Brand:
AMPFORT
Product Description
Carbon Film Resistor Overview
Carbon film resistors utilize high-temperature vacuum coating technology to deposit carbon onto a ceramic substrate, forming a precise resistive film. The carbon thickness and precision notching determine the resistance value, with epoxy resin encapsulation providing durable protection. These components offer exceptional stability, wide resistance range, and cost-effective performance for demanding applications.
Key Applications
Ideal for high-voltage and high-temperature environments, carbon film resistors operate reliably at voltages up to 15 kV and temperatures reaching 350°C. Common applications include high-voltage power supplies, radar systems, x-ray equipment, laser systems, and industrial control circuits requiring stable performance under extreme conditions.
Product Features
- Flameproof coating option available (specify "CFR")
- Compact miniature versions for space-constrained designs
- Optimized for automated machine insertion processes
- Lead-free terminations compliant with EU RoHS and China RoHS
- Resistance range: 1 Ohm to 10M Ohm
- Power ratings: 0.125W to 5W
- Standard tolerance: ±5%
- Carbon film construction ensures long-term stability
- Solder-plated copper leads for reliable connections
Electrical Specifications
| Type | Rated Power | Max Working Voltage | Max Overload Voltage | Dielectric Withstanding Voltage | Resistance Range |
|---|---|---|---|---|---|
| CF1/8W | 0.125W | 200V | 400V | 350V | 1Ω~10MΩ |
| CF1/4W | 0.25W | 250V | 500V | 500V | 1Ω~10MΩ |
| CF1/2W | 0.5W | 350V | 700V | 700V | 1Ω~10MΩ |
| CF1W | 1W | 500V | 800V | 800V | 1Ω~10MΩ |
| CF2W | 2W | 500V | 1000V | 1000V | 1Ω~10MΩ |
| CF3W | 3W | 500V | 1000V | 1000V | 1Ω~10MΩ |
| CF5W | 5W | 500V | 1000V | 1000V | 1Ω~10MΩ |
Physical Dimensions
Construction Materials
| Component | Material |
|---|---|
| Ceramic Core | High alumina ceramic |
| Resistor Element | Carbon film |
| Terminal | Tinned iron cap |
| Connection | Welded solder-plated leads |
| Lead Wire | Soldered or tinned annealed wire |
| Undercoat Painting | Electric insulation resin |
| Finishing Painting | Epoxy resin |
| Indication | Color code bands |
Color Coding System
Resistor values are indicated through standardized color bands. The first two bands specify the base resistance value, the third band indicates the multiplier, and the final band shows the tolerance percentage. High-precision resistors feature five bands, with the first three representing base values, and the fourth and fifth indicating multiplier and tolerance respectively.
Carbon Composition Benefits
Carbon composition resistors are manufactured by molding carbon powder mixed with phenolic resin to create a uniform resistive body. This construction method provides robust performance with initial tolerance typically maintained within ±5% of the specified value, making them suitable for general-purpose applications where extreme precision is not required.
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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