Carbon Film Resistor Power Rating (W)
Standard Type: 1/6W，1/4W，1/2W，1W，2W
Minature Type: 1/4WS,1/2WS,1WS,2WS
Tolerance: ±2%，±5%，±10%
MOQ: 1000 pieces
■ Carbon Film Resistor Dimensions
| Type | Dimension (mm) | |||
| L | D | H | ||
| RT-1/4WS | RT-1/6W | 3.2±0.3 | 1.8±0.2 | 28±2 |
| RT-1/2WS | RT-1/4W | 6.5±0.5 | 2.3±0.3 | 26±2 |
| RT-1WS | RT-1/2W | 9.0±0.5 | 3.2±0.5 | 26±2 |
| RT-2WS | RT-1W | 12±1.0 | 4.5±0.5 | 30±2 |
| - | RT-2W | 16±1.0 | 5.0±0.5 | 28±2 |
■ Specifications
| Power Rating | Maximum Working Voltage | Maximum Overload Voltage | Resistance Range +-5% | |
| - | RT-1/6W | 200 | 400 | 1-22M |
RT-1/4WS | RT-1/4W | 250 | 500 | 0.5-22M |
RT-1/2WS | RT-1/2W | 350 | 700 | 0.5-22M |
RT-1WS | RT-1W | 500 | 1000 | 0.5-22M |
| RT-2WS | RT-2W | 500 | 1000 | 0.5-22M |
■ Carbon Film Resistor Characteristics
Terminal Strength | no dange A Rmax± 0.3% or 0.5 |
Soldering | good thing no dange Δ Rmax ± 0.5% or 0.5 |
Temperature Cycling | ΔRmax+0.5% |
Vibration | no dange ΔRmax ± 0.5% or 0.5 |
Moisture Resistance | ΔRmax±3% |
Load Life | ΔRmax±2.5% |
Temperature Coefficient | |
Dielectric Strength | 2 x Work.Volt no breakdown ΔRmax±0.5% |
Insulation Resistance | min 10 |
Short Time Overoad | ΔRmax±0.5% |
Resistance to Solvents- | no dange |
■ Derating Curve
■ Dimensions
Special lead length (H)on request
Special registance on request
Flameproof type also available
Carbon film resistors are fundamental passive components designed to limit or regulate electric current flow in electronic circuits. Constructed by depositing a thin, pure carbon film onto a high-purity ceramic substrate, these resistors offer a cost-effective solution for general-purpose applications. They are characterized by stable performance, low noise, and suitability for high-voltage environments, making them a popular choice across consumer electronics, industrial controls, and educational projects.
Ceramic Core: Serves as an insulating, thermally stable base.
Carbon Film: A thin layer of pure carbon acts as the resistive material. The desired resistance value is achieved by precision cutting a helical groove (spiral) into the film, which increases the conductive path length.
Protective Coating: Multiple layers of epoxy resin coating are applied and baked individually. This coating provides robust protection against moisture, mechanical stress, and solvents.
Leads: Made of tinned, annealed copper wire for excellent solderability.
Carbon film resistors are versatile and commonly used in:
Current Limiting & Voltage Division: Basic circuit functions in power supplies, inverters, and control boards.
High-Voltage Applications: Suitable for use in high-voltage power supplies, radar systems, X-ray equipment, and lasers, with operating voltages up to 15 kV feasible.
Consumer Electronics: Widely used in household appliances, energy-saving lamps, and audio equipment.
DIY Projects and Prototyping: A cost-effective choice for experiments, hobbyist electronics, and educational kits.
If you are interested in our products and want to know more details,please leave a message here,we will reply you as soon as we can.
Tel: 0086-519-83976620
WhatsApp: +86-13806118535
Email: liujindong@nfdq.cn
No. 6, Xinxin Intelligent Industrial Park，Changzhou, Jiangsu
Changzhou Southern Electronic Element Factory Co., Ltd. is located in the city of Changzhou, which has a long history in Jiangsu Province. It is situated in the most active economic area in Yangtze River Delta Centre. The transport is very convenient. Expressway, Fast railways run though it. And it only takes one and half hours to reach Shanghai or Nanjing city. Airplane from here is through to major cities in China.
Changzhou Southern Electronic Element Factory Co., Ltd. was founded in 1989. After several years' development and effort, it has invested and opened up three subsidiary companies, in Yancheng city, Huai'an city in Jiangsu Province, and Lang'xi City in Anhui Province respectively.
