Based on the 0.2 Ω metal film resistance parameters provided by you for the 1206 package, I have compiled the following clear table:
|Model | Packaging | Resistance | Power | Tolerance | Temperature Drift Coefficient | Brand | Material Characteristics|
|TRL1206X2R200P05Z | 1206 | 0.2 Ω | 0.25W | 1% | ± 50ppm | Tian'er | Standard metal film|
|STE1206M1W0R200F | 1206 | 0.2 Ω | 1W | 1% | ± 50ppm | Huade | Metal film/alloy|
|EMA16F0W5R200KEG | 1206 | 0.2 Ω | 1W | 1% | ± 50ppm | Ellon | Alloy Material|
|EHP16FUR200JEL | 1206 | 0.2 Ω | 0.5W | 1% | ± 600ppm | Ellon | Thick film power up|
|EHP16JUR200JEL | 1206 | 0.2 Ω | 0.5W | 5% | ± 600ppm | Ellon | Thick film power up|
Key characteristic analysis:
Significant power difference
Huade/Elon alloy version: 1W (for high-power applications)
Ellon thick film version: 0.5W (power up design)
Tian'er Standard Model: 0.25W (Basic Power)
Comparison of Material Technology
Alloy material (Ellon EMA series): low resistance, high power, low temperature drift (± 50ppm), suitable for high current precision circuits.
Thick film power up (Ellon EHP series): improves heat dissipation capability through process, but has higher temperature drift (± 600ppm) and lower cost.
Accuracy and Temperature Drift
High precision requirement: Select 1% tolerance+50ppm (such as Wald/Allon alloy version)
Ordinary application: optional 5% tolerance+600ppm (such as EHP16JUR200JEL)
Brand characteristics
Day 2: Standard metal film, conservative power
Huade: A 1W metal film that balances power and accuracy
Ellon: Segmented alloy/thick film solutions, covering different cost performance requirements
>Selection suggestion:
>High current and high stability required: Ellon EMA series (alloy 1W/50ppm) or Wald 1W model are preferred
>Cost sensitive and moderate power requirements: Ellon EHP thick film power up series (0.5W)
>Conventional application: Tian'er standard model (0.25W), pay attention to power margin design
