The following is a brand and feature introduction based on the model parameters of the 2512 package 0.5 Ω surface mount resistor provided by you (without table format):
Tian Er (TRL series)
Model: TRL251230FR500E04Z
Parameters:
Resistance: 0.5 Ω (500m Ω)
Power: 3W
Accuracy: ± 1%
Temperature Drift Coefficient (TCR): ± 50ppm/℃
Technology: Metal film resistor
Features: High power (3W), precise temperature drift (50ppm), suitable for high-precision high current sampling scenarios.
Ellon (EMA alloy series)
Model: EMA25F3W0R500KDG
Parameters:
Resistance: 0.5 Ω (500m Ω)
Power: 3W
Accuracy: ± 1%
Temperature drift coefficient: ± 50ppm/℃
Technology: Alloy resistance
Features: Alloy materials provide excellent overload capacity and stability, suitable for high reliability designs such as power modules.
Ellon (EHP Thick Film Power Up Series)
Model:
EHP25JSR500JDL: accuracy ± 5%, temperature drift ± 600ppm/℃
EHP25FSR500JDL: accuracy ± 1%, temperature drift ± 600ppm/℃
Common parameters:
Resistance: 0.5 Ω (500m Ω)
Power: 2W
Technology: Thick film power up technology
Characteristics:
By using special processes to increase the power density of thick film resistors (up to 2W), cost-effectiveness is high.
Difference: JSR has a precision of 5% (low-cost solution), while FSR has a precision of 1% (selected when higher precision is required).
Tian Er (STE Metal Film Series)
Model: STE2512M2W0R500F
Parameters:
Resistance: 0.5 Ω (500m Ω)
Power: 2W
Accuracy: ± 1%
Temperature drift coefficient: ± 50ppm/℃
Technology: Metal film resistor
Features: Balanced power (2W) and temperature drift accuracy (50ppm), suitable for medium power precision circuits.
Key points of brand and selection:
Tian Er (TAI): Focusing on metal film technology, providing 3W/2W options, excellent temperature drift control (50ppm), suitable for high-precision requirements.
Ellon：
Alloy resistance (EMA): 3W power+50ppm temperature drift, strong impact resistance.
Thick film power up (EHP): 2W power+600ppm temperature drift, outstanding cost performance, optional accuracy (1% or 5%).
Selection suggestion:
Requires 3W power+low-temperature float → Choose Tian'er TRL or Ellon EMA alloy series.
Requires 2W power+low temperature and cost → Choose Tian'er STE metal film (temperature drift 50ppm) or Ellon EHP thick film (temperature drift 600ppm).
Extreme cost sensitivity → Available 5% precision version of Ellon EHP (EHP25JSR500JDL).
The above models are compatible with the 2512 package (6.4mm × 3.2mm), and the actual selection should be based on power requirements, temperature drift tolerance, and cost considerations.