If you are looking for a high-power chip resistor that can operate stably in harsh electrical environments, then TGL251220FR080E04Z is likely the model you are searching for. This is an anti-surge metal film chip resistor produced by EVER OHMS, Taiwan, and plays a crucial role in many power and power circuit applications due to its excellent overload capacity and stability.
To provide you with a quick overview, the table below summarizes the core parameters of TGL251220FR080E04Z:
| Parameter Category | Specific Value |
| Model | TGL251220FR080E04Z |
| Brand | EVER OHMS |
| Type | Anti-surge metal film chip resistor |
| Package size | 2512 (Imperial, approximately 6.4mm x 3.2mm) |
| Nominal resistance | 0.08 Ω (80 milliohms) |
| Resistance accuracy | ±1% |
| Rated power | 2W |
| Temperature coefficient | ±50 ppm/°C |
Model code analysis
The model naming of Tianer Technology typically incorporates crucial information about the product, and TGL251220FR080E04Z is no exception:
TGL: It represents the series to which this resistor belongs. The TGL series is a metal film resistor specifically designed by Tianer for surge resistance applications.
2512: Refers to the package size of a resistor, which is an imperial code. The corresponding metric size is approximately 6.4mm x 3.2mm.
F: indicates that the accuracy of the resistance is ±1%.
R080: It represents a resistor with a resistance value of 0.080Ω. Here, "R" stands for the decimal point.
E04: Typically indicates a temperature coefficient of resistance of ±50ppm/°C.
Z: Generally represents the packaging method or internal code of the manufacturer, commonly indicating braided packaging.
Core features and applications
Apart from its basic parameters, the core value of TGL251220FR080E04Z lies in its surge resistance characteristics. Unlike ordinary chip resistors, it employs a special metal film material and structural design, enabling it to withstand transient high-current surges (surge) that far exceed its rated power for a short period of time without being easily damaged.
This makes it highly suitable for applications in circuits where there is a risk of instantaneous high voltage or high current, such as:
Power circuit: input filtering, surge protection (NTC bypass), etc. for switching power supply (SMPS).
Motor drive: Serving as a current detection or current limiting resistor in the motor drive board.
Charging equipment: Used in chargers or power adapters to suppress inrush current during power-on.
Selection and usage precautions
When selecting and using resistors like TGL251220FR080E04Z, there are a few points worth noting:
1. Power and heat dissipation: Despite having a rated power of 2W, derating should be considered when used in high-temperature or enclosed environments to ensure sufficient margin for actual power consumption.
2. Extremely low resistance: Its resistance is only 0.08Ω, typically used for current sampling or high-current paths. When laying out the PCB, attention should be paid to Kelvin connections (four-wire measurement) to obtain a more accurate sampling voltage, and to ensure that the copper foil of the current path is wide enough to carry the current.
3. Surge capability is crucial: If the circuit is exposed to surge risks caused by lightning strikes, inductive load switching, etc., it is vital to choose a series like TGL that is explicitly labeled as surge-resistant.
In summary, TGL251220FR080E04Z is a precision low-resistance chip resistor designed for high reliability and high surge environments. If your design involves power protection, motor control, or requires precise current sampling, this resistor is a reliable option worth considering.
