The following is a detailed analysis of resistor models for 2512 package (size 6.4mm × 3.2mm), resistance 1.3 Ω (1.3R), and power 2W, based on publicly available specifications and industry data. Classify and compare each model by technical type, and provide selection suggestions:
1、 Comparison Table of Key Parameters
|Model | Manufacturer | Technical Type | Accuracy | Temperature Coefficient (ppm/℃) | Special Characteristics | Applicable Scenarios|
|CRH2512F1R30E04Z | Tian'er | Thick film | ± 1% | ± 400 | High cost performance | Consumer electronics, power module|
|TGL251220F1R30E04Z | Tian Er | Metal Film | ± 1% | ± 50 | Surge Resistance (100V) | Industrial Power Supply, Automotive Electronics|
|TRL251220F1R30E04Z | Day 2 | Metal film | ± 1% | ± 50 | Low noise, high stability | Communication equipment, precision instruments|
|EAM25FS1R30DDS | Billion Energy | Metal Film | ± 1% | ± 100 | Sulfur Resistance | Chemical/High Sulfur Environment|
|EHP25FS1R30FDS | Billion Energy | Thick Film | ± 1% | ± 200 | High Power Density | Universal High Current Circuit|
|EHP25JS1R30FDS | Yineng | Thick film | ± 5% | ± 200 | Low cost | LED current limiting and other non precision scenarios|
>Note:
>Surge resistance: able to withstand instantaneous high voltage impact (such as motor start stop).
>Sulfurization resistance: Resists corrosion of silver electrodes caused by sulfur-containing environments and extends their lifespan.
>Advantages of metal film: low temperature drift (± 50ppm), low noise, suitable for precision circuits; Advantages of thick film: low cost, high power density.
2、 Model Explanation and Selection Scenarios
High cost performance universal type: thick film resistor
CRH2512F1R30E04Z (Day 2)
Basic thick film design, ± 400ppm temperature drift, suitable for scenarios with small temperature changes (such as indoor appliances).
2W power meets most consumer electronics needs, but needs to be reduced to 70% usage (approximately 1.4W) to prevent overheating.
Recommended scenarios: power converters, home appliance motherboards.
EHP25FS1R30FDS (Yineng)
A temperature drift of ± 200ppm is superior to the Tian'er CRH series, with the same power density.
Suitable for low-cost projects that require slightly higher stability, such as general power modules.
High reliability scenario: Metal film resistor
TGL251220F1R30E04Z (Day 2)
Surge resistant design: Supports 100V instantaneous voltage, used for circuits that are susceptible to lightning strikes or motor interference.
± 50ppm temperature drift ensures stability within the range of 55 ℃~155 ℃, suitable for automotive electronics (such as engine control units).
TRL251220F1R30E04Z (Day 2)
Metal film base model, without surge resistance but retaining ± 50ppm low-temperature drift characteristics.
Suitable for high-frequency circuits (such as switching power supplies), due to the lower inductance effect of metal films compared to thick films.
EAM25FS1R30DDS (Yineng)
Sulfur resistant properties: Suitable for sulfur-containing environments such as petrochemicals and wastewater treatment, treated with special end electrodes.
± 100ppm temperature drift is a moderate level in metal film, balancing cost and stability.
Low cost solution
EHP25JS1R30FDS (Yineng)
± 5% accuracy and ± 200ppm temperature drift, suitable for scenarios with loose resistance requirements (such as LED light strip current limiting).
The price is about 30% lower than the ± 1% model, but the power is still guaranteed to be 2W
3、 Summary of Key Factors in Selection
Accuracy and Temperature Drift
Precision detection circuit (such as current sampling): Select metal film (TGL/TRL series, ± 50ppm).
Non critical path: Thick film ± 5% (EHP25JS) can reduce costs.
Environmental adaptability
Surge risk: Mandatory selection of TGL series (Tian'er) or Yineng EGM series (not listed, but with similar surge resistance performance).
High sulfur environment: EAM25FS1R30DDS is one of the few sulfur resistant models.
Power derating design
The recommended actual power consumption for all 2W resistors is ≤ 1.4W (70% derating), especially in enclosed spaces where heat dissipation needs to be strengthened.
Cost balance
Consumer electronics: Thick film CRH or EHP (unit price as low as ¥ 0.5/piece, purchase quantity of 10k).
Industrial/Automotive: Although metal film is expensive (unit price ¥ 1.2-1.8/piece), its reliability improves system lifespan.
>Tip: The complete specification sheet (such as RoHS/REACH certification) needs to be consulted with the manufacturer's documentation. Before bulk procurement, it is recommended to test the samples to verify temperature rise and pulse tolerance.
