Power Rating
StandardType: 1/6W，1/4W，1/2W，1W，2W
Tolerance: ±1%, ±5%, ±10%
Temperature Coefficient: ±50PPM， ±100PPM
Metal film resistors are widely used in precision electronic circuits due to their excellent stability, low noise, and high accuracy. They are suitable for applications in industrial controls, medical devices, telecommunications, and consumer electronics.
Metal film resistors offer a superior combination of precision, stability, and reliability, making them the preferred choice for demanding electronic applications. Here’s why they stand out:
1. High Precision & Tight Tolerance
Superior Accuracy: They are available with very tight tolerances (as low as ±0.1% to ±1%), providing highly precise resistance values. This is critical for applications like precision analog-to-digital converters and sensitive measurement equipment where exact values are non-negotiable.
2. Excellent Temperature Stability
Low Temperature Coefficient (TCR): With a very low TCR (as low as ±15 ppm/°C to ±50 ppm/°C), their resistance value changes minimally with temperature fluctuations. This ensures consistent circuit performance across a wide operating temperature range, a significant advantage over carbon film resistors.
3. Low Noise Performance
Ideal for Sensitive Signals: Metal film technology generates significantly less inherent noise (thermal and current noise) compared to carbon composition resistors. This makes them indispensable in audio amplifiers, medical instrumentation, and other signal-processing circuits where noise can degrade performance.
4. Long-Term Stability & Reliability
Minimal Drift Over Time: Metal film resistors exhibit excellent long-term stability, meaning their resistance value changes very little over their operational lifespan, even under stressful conditions. This reduces circuit drift and maintenance needs, enhancing product reliability.
5. Good Pulse Load Handling
They can withstand short-duration pulse overloads better than thin-film or carbon composition resistors, making them robust for various real-world operating conditions.
■ Dimensions
| Type | Dimension (mm) | |||
| L | D | H | d | |
| RJ-1/6W | 3.2±0..3 | 1.8±0.2 | 28±2 | 0.48±0.03 |
| RJ-1/4W | 6.5±0.5 | 2.3±0.3 | 26±2 | 0.60±0.03 |
| RJ-1/2W | 9.0±0.5 | 3.2±0.5 | 26±2 | 0.60±0.03 |
| RJ-1W | 12±1.0 | 4.5±0.5 | 30±2 | 0.80±0.03 |
| RJ-2W | 16±1.0 | 5.0±0.5 | 28±2 | 0.80±0.05 |
■ Specifications
| Type | Power Rating ( W ) | Maximum Working Voltage | Maximum Overload Voltage | |||
| 70℃ | 125℃ | 70℃ | 125℃ | 70℃ | 125℃ | |
| RJ-1/6W | 0.166 | 0.05 | 200 | 150 | 400 | 300 |
| RJ-1/4W | 0.25 | 0.1 | 250 | 200 | 500 | 400 |
| RJ-1/2W | 0.5 | 0.125 | 350 | 250 | 700 | 500 |
| RJ-1W | 1 | 0.25 | 500 | 300 | 1000 | 600 |
| RJ-2W | 2 | 0.5 | 500 | 350 | 1000 | 700 |
| Characteristics | MF Series % Change in Resistance (ΔR) | ||||
| Requirements | MF-1/6W | MF-1/4W | MF-1/2W | MF-1W | MF-2W |
| Temperature Cycling,-65℃ to+150℃(%) | ±0.25 | ±0.25 | ±0.25 | ±0.25 | ±0.25 |
| Low Temperature Operature,-65℃(%) | ±0.25 | ±0.25 | ±0.25 | ±0.25 | ±0.25 |
| Short Time Overload | ±0.25 | ±0.20 | ±0.20 | ±0.25 | ±0.20 |
| Terminal Strength (%) | ±0.20 | ±0.20 | ±0.20 | ±0.15 | ±0.15 |
| Resistance to Soldering Heat,+350℃(%) | ±0.10 | ±0.10 | ±0.10 | ±0.10 | ±0.10 |
| Mosisture Resistance (%) | ±0.50 | ±0.50 | ±0.50 | ±0.50 | ±0.50 |
| Life 1000 hrs (Rated Power) | ±0.50 | ±0.50 | ±0.50 | ±0.50 | ±0.50 |
| Vibration-High Frequency | ±0.25 | ±0.20 | ±0.20 | ±0.20 | ±0.20 |
| Insulation Resistance | 1010 | 1010 | 1010 | 1010 | 1010 |
■ Remark
1、Special lead length (H) on request
2、Special registance on request
3、Flameproof type also available
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.
