This is an introduction to the parameters of a high-power resistor model with a 2512 package and a resistance of 1.8 ohms (1.8R)
Overview of Model Parameters for 2512 Package 1.8 Ω High Power Resistors:
Here are the specific parameters of several high-power surface mount resistors with a size of 2512 (length 6.3mm x width 3.2mm) and a resistance of 1.8 ohms that you have listed:
1. EHP25JR1R80HDU (Ellon brand)
Power: 3W
Accuracy: ± 5%
Temperature drift coefficient: ± 400 ppm/° C
Technology: Thick film resistors
Features: Standard high-power thick film resistor.
2. EHP25JS1R80FDS (Ellon brand)
Power: 2W
Accuracy: ± 5%
Temperature drift coefficient: ± 200 ppm/° C
Technology: Thick film resistors
Features: Standard high-power thick film resistor with better temperature drift coefficient than the J series.
3. EHP25FR1R80HDU (Ellon brand)
Power: 3W
Accuracy: ± 1%
Temperature drift coefficient: ± 400 ppm/° C
Technology: Thick film resistors
Features: High precision 3W thick film high-power resistor.
4. EHP25FS1R80FDS (Ellon brand)
Power: 2W
Accuracy: ± 1%
Temperature drift coefficient: ± 200 ppm/° C
Technology: Thick film resistors
Features: A 2W thick film high-power resistor with higher precision and better temperature drift coefficient.
5. EAM25FS1R80DDS (Ellon brand)
Power: 2W
Accuracy: ± 1%
Temperature drift coefficient: ± 50 ppm/° C
Technology: Metal film resistor
Features: Anti sulfurization metal film high-power resistor. Provides a very low temperature drift coefficient (50ppm) with an accuracy of ± 1%, and has excellent sulfur resistance, suitable for harsh environments such as sulfur-containing.
6. EGM25FU1R80DDS (Ellon brand)
Power: 3.5W
Accuracy: ± 1%
Temperature drift coefficient: ± 50 ppm/° C
Technology: Metal film resistor
Features: Surge resistant metal film high-power resistor. Provides higher 3.5W power in the standard 2512 package size, while maintaining ± 1% accuracy and an extremely low 50ppm temperature drift coefficient, and has excellent surge resistance.
7. CRH2512F1R80E04S (Tian'er brand)
Power: 2W
Accuracy: ± 5%
Temperature drift coefficient: ± 400 ppm/° C
Technology: Thick film resistors
Features: The standard 2W thick film high-power resistor from the Tian'er brand.
Summarize key differences:
Power level: Available in 2W, 3W (Ellon EHP/J/F series) and higher power 3.5W (Ellon EGM series).
Accuracy: Provides standard ± 5% (J/S suffix) and more accurate ± 1% (F/S/U suffix).
Temperature drift coefficient:
Thick film: commonly ± 400ppm (J/R suffix) or ± 200ppm (S suffix).
Metal film: Provides excellent ± 50ppm (DDS suffix).
Technical/Special Performance:
Thick film (EHP/CRH series): Standard high-power solution.
Metal film anti sulfurization (EAM series): suitable for sulfur-containing environments, low TCR.
Metal film anti surge (EGM series): Provides the highest power (3.5W), strong anti surge capability, and low TCR.
Brand: We mainly offer multiple options from the Ellon brand, as well as a standard 2W thick film resistor from the Tian'er brand.
This introduction clearly lists the core parameters (power, accuracy, temperature drift coefficient, technical type, special performance) and brand of each model, making it easy for you to choose based on specific application needs (such as required power size, accuracy requirements, working environment temperature range, whether sulfur or surge resistance is needed, cost considerations, etc.). For applications that require extremely high power density and shock resistance, EGM25FU1R80DDS is the preferred choice; For sulfur-containing environments, EAM25FS1R80DDS is more suitable; For general high-power applications that are cost sensitive, the EHP series or the CRH series from Tian'er are the basic choices.