Recommended parameters and models for 2512 1.8R surface mount resistor

The following is an original technical comparison and analysis of a surface mount resistor model with a size of 6.4mm × 3.2mm and a resistance of 1.8 Ω for the 2512 package. The parameters, application scenarios, and supply information of each model are comprehensively analyzed
  
1、 Comparison Table of Key Parameters
|Model | Series | Manufacturer | Accuracy | Rated Power | Temperature Coefficient (ppm/℃) | Special Performance | Minimum Packaging Quantity|
|CRH2512F1R80E04S | CRH | Tian'er | ± 1% | 2W | ± 400 | Conventional thick film | 4000/disk|
|CUH2512F1R80E04Z | CUH | Tian'er | ± 1% | 2W | ± 200 | Ultra high power | 4000/disk|
|EHP25FR1R80HDU | EHP | Yineng | ± 1% | 3W | ± 400 | High power thick film | 4000/disk|
 
|EHP25FS1R80FDS | EHP | Yineng | ± 1% | 2W | ± 200 | Low temperature float | 4000/disc|
|EGM25FU1R80DS | EGM | Billion Energy | ± 1% | 3.5W | ± 50 | Surge resistant metal film | 5000/disk|
|EHP25JR1R80HDU | EHP | Yineng | ± 5% | 3W | ± 400 | Low cost and high power | 4000/disk|
  
Note:
Power advantage: The EHP/EGM series of Yineng can achieve a power of 3W-3.5W, which is better than the 2W of the Tian'er CRH/CUH
Temperature drift control: EHP25FS1R80FDS (± 200ppm) and EGM25FU1R80DDS (± 50ppm) are suitable for temperature sensitive scenarios.   
Cost sensitive: EHP25JR1R80HDU (± 5% accuracy) has a lower price and is suitable for non precision circuits.
  
2、 Recommended application scenarios
 
1. Conventional power circuit (2W requirement)
First choice: Tian'er CRH2512F1R80E04S (± 1% accuracy, sufficient stock).   
Alternative: Yineng EHP25FS1R80FDS (temperature drift ± 200ppm, better stability).
  
2. High power/heat dissipation key design
  
3W requirement: Yineng EHP25FR1R80HDU (± 1% accuracy), suitable for power modules and motor drives.   
Extreme power: Billion Energy EGM25FU1R80DDS (3.5W metal film), strong surge resistance, suitable for industrial power protection.
 
3. Requirements for high precision and low temperature drift
 
Yimeng EGM25FU1R80DDS (± 50ppm) is suitable for precision instruments and medical equipment.   
Tian'er CUH2512F1R80E04Z (± 200ppm) has a better cost-effectiveness than its competitors with the same precision.
 
4. Cost sensitive mass production
Yineng EHP25JR1R80HDU (± 5% accuracy, 3W power) is suitable for consumer electronics such as chargers and LED drivers.

3、 Procurement and Supply Suggestions