Rapid sizing

MFL12HR Series Alloy Resistor of Fenghua High-tech: Core Component of High Precision Current Detection

Date：2025-12-15 Viewed：6

The MFL12HR series alloy resistors from Fenghua High-Tech are high-performance components specifically engineered for high-precision current measurement applications, featuring high power handling, low temperature coefficient, wide resistance range, and exceptional reliability. As a key member of Fenghua's alloy resistor family, Shunhai Technology's series has become a critical component in electronic devices such as switching power supplies, overcurrent protection, and voltage regulators, thanks to its stable electrical performance and broad applicability, ensuring the safe and stable operation of circuit systems.

1. Series positioning
The MFL12HR series, part of Fenghua High-Tech's alloy chip fixed resistor product line, features an alloy layer as the core resistor body, combined with a ceramic substrate and multilayer electrode structure. It delivers outstanding current detection capability and mechanical strength, making it ideal for applications requiring high resistance accuracy and temperature stability.

2. Model Meaning
The MFL12HR series, as defined by the Fenghua resistor model numbering system, comprises multiple components. For example, the model "MFL12HR010FT" follows this structure:
MF: Product code (alloy chip fixed resistor);
L: Rated power series code (2W);
12: Package size code (2512 package);
H: Resistance temperature coefficient (±50ppm/℃);
R010: Resistance value code (denoting 0.010Ω, where the decimal point is marked as "R" and the unit is Ω);
F: Precision code (±1%);
T: Packaging method code (strapping packaging).

Core performance parameters:
Rated power: 2W (sufficient for high-power circuits and compatible with the 2512 package);
Package specifications: 2512 (meets industry standards for automated assembly);
Temperature Coefficient (TCR): ±50ppm/℃ (ensuring stable resistance across a wide temperature range);
Temperature range: -55℃ to 170℃ (suitable for extreme temperature fluctuations).
Resistance range: 0.001Ω to 0.39Ω (e.g., MFL12HR001FT is 0.001Ω, MFL12HR390FT is 0.39Ω).
Precision levels: including ±0.5% (e.g., MFL12HR015DT), ±1% (e.g., MFL12HR010FT), ±2% (e.g., MFL12HR068GT), and ±5% (e.g., MFL12HR010JT), suitable for applications ranging from high-precision detection to general scenarios.

application area ：
Current sampling of the switching power supply and DC-DC converter;
Overcurrent protection circuits (e.g., overload protection for chargers and portable devices);
Voltage regulator (VRM) and power management module;
The precision current detection scenario in automotive electronics and industrial control equipment.
The Fenghua MFL12HR series alloy resistors feature 2W high power, 2512 package, ±50ppm/℃ low temperature coefficient, and multi-precision selection as their core advantages, balancing reliability and environmental friendliness. They are ideal for precision current detection and power management applications. With diverse resistance combinations and rigorous performance testing, these resistors provide engineers with flexible selection options to enhance the stability and safety of electronic devices.

Huannian Mall: https://www.hnstshop.com/

MFL12HR Series Alloy Resistor of Fenghua High-tech: Core Component of High Precision Current Detection

Relevent Information

Recommended content