Model recommendation for 2512 1K resistor with 2W/3W power parameters

Here is a recommended model of 1K Ω high-power resistor in 2512 package for your needs, described in pure text:

Core requirements: 2512 package, resistance 1K Ω, power 2W or 3W.

Recommended models (grouped by power and accuracy)

1. 2W power option:
Ellon EHP25FS1K00EDS: This is the standard 2W option. It has high accuracy (± 1%) and standard temperature coefficient (± 100ppm/° C). It is suitable for 2W applications that require high resistance accuracy.
Ellon EHP25JS1K00EDS: If you have slightly lower accuracy requirements (± 5%) but other parameters are the same as the previous model (2W, ± 100ppm/° C), you can choose this model. The cost is usually slightly lower than 1% precision models.
Tian'er CRH2512F1K00E04Z: This is a 2W option from the Tian'er brand, with specifications very similar to Ellon EHP25FS1K00EDS (± 1%, ± 100ppm/° C), providing you with another brand choice.

2. 3W power option:
High precision (± 1%) standard temperature drift (± 100ppm/° C):
Ellon EHP25FR1K00EDU: This is the recommended model with the highest accuracy (± 1%) at 3W power and standard temperature drift (± 100ppm/° C). Suitable for applications that require high power and strict requirements for resistance accuracy.
High precision (± 1%) with slight high-temperature drift (± 200ppm/° C):
Ellon EHP25FR1K00FDU: If you need 3W power and ± 1% accuracy, but do not have high requirements for temperature coefficient (acceptable ± 200ppm/° C), this model is an option. Sometimes relaxing temperature drift requirements can bring cost or supply advantages.
Standard accuracy (± 5%) Standard temperature drift (± 100ppm/° C):
Ellon EHP25JR1K00EDU: This is one of the most economical options at 3W power, providing ± 5% accuracy and standard ± 100ppm/° C temperature drift. Suitable for applications that do not require high precision but require higher power.
Standard accuracy (± 5%) with slight high temperature drift (± 200ppm/° C):
Ellon EHP25JR1K00FDU: If you need 3W power, the requirements for accuracy (± 5%) and temperature drift (± 200ppm/° C) are relatively relaxed, and this model usually has the best cost-effectiveness.

Choose Suggestions

Preferred power: First, clarify whether your design requires a rated power of 2W or 3W.
Accuracy requirements:
If the circuit is sensitive to resistance accuracy (such as precision voltage divider, reference source, etc.), choose a model with ± 1% accuracy (such as EHP25FS1K00EDS/CRH2512F1K00E04Z for 2W; EHP25FR1K00EDU/EHP25FR1K00FDU for 3W).
If the accuracy requirement is not high (such as general current limiting, pull-up/pull-down), models with ± 5% accuracy (such as EHP25JS1K00EDS for 2W; EHP25JR1K00EDU/EHP25JR1K00FDU for 3W) are usually more economical.
Temperature coefficient requirement:
If the application environment temperature changes greatly or is sensitive to changes in resistance with temperature, priority should be given to models with a temperature drift of ± 100ppm/° C.
If the temperature change is not significant or the effect of temperature drift can be ignored, models with a temperature drift of ± 200ppm/° C (such as EHP25FR1K00FDU, EHP25JR1K00FDU) may be a more economical choice.
Brand preference:
The 2W option offers two brands, Ellon and Tian'er.
The 3W option currently lists the Ellon brand.

summarize

2W main force: Ellon EHP25FS1K00EDS (1%/100ppm) or Tian'er CRH2512F1K00E04Z (1%/100ppm), low budget options include Ellon EHP25JS1K00EDS (5%/100ppm).
3W main force (high precision): Ellon EHP25FR1K00EDU (1%/100ppm).
3W main force (economic type): Ellon EHP25JR1K00EDU (5%/100ppm).
3W alternative (relaxed temperature drift): Ellon EHP25FR1K00FDU (1%/200ppm) is available for high precision, and Ellon EHP25JR1K00FDU (5%/200ppm) is available for economical models.

Please select the most suitable model from the above list based on your specific application requirements for power, accuracy, temperature coefficient, and cost.