10mohm High Precision Resistor for Accurate Electrical Testing

• Customization: Available
• Resistance: Fixed Resistor
• Function for Resistance: Sampling Resistor
• Model NO.: TMRS02
• Installation: DIP Resistor
• Material: Alloy
• Packaging: Throught Hole
• Type: Sampling Resistor
• Quantity: Single Connection
• Shape: Gate Type
• Resistance change scale: Linear Scale
• Application: Audio
• Rated Current: 7A~30A
• Power: 3W
• MOQ: 1000PCS
• Lead Time: 3 Weeks
• Warranty: 1 Year
• Term: EXW
• Transport Package: Carton
• Specification: P=5mm P=10mm
• Trademark: ETOPMAY&TOPMAY
• Origin: China
• Production Capacity: 10000000
• Package Size: 38.00cm * 34.00cm * 20.00cm
• Package Gross Weight: 12.000kg

Product Description

Product Description

 

TMRS02-Precision Sampling Resistor
 

A Precision Sampling Resistor (also referred to as a precision current sensing resistor or precision shunt resistor) is a high-accuracy passive electronic component specifically engineered for measuring and monitoring electrical current in a wide range of electronic circuits and systems. Designed with ultra-low tolerance (typically ±0.01% to ±1% ), tight temperature coefficient of resistance (TCR, often as low as ±1 ppm/°C to ±25 ppm/°C), and exceptional long-term stability, this resistor serves as a critical "current-to-voltage converter" by leveraging Ohm's Law (V = I×R): when current flows through it, a precise, measurable voltage drop is generated across its terminals, which is then sampled and analyzed by control units, ADCs (Analog-to-Digital Converters), or monitoring circuits to derive the exact value of the original current.

 

Unlike standard resistors that prioritize basic current-limiting or load functions, precision sampling resistors are optimized for minimal self-heating, low parasitic inductance/capacitance, and high power dissipation capacity (ranging from mW to hundreds of Watts, depending on application), ensuring accurate current sensing even in high-frequency, high-current, or harsh operating environments (e.g., industrial controls, automotive electronics, power supplies). Common constructions include metal film, metal strip, or alloy-based (such as manganin, constantan, or nickel-chromium) designs, which deliver superior resistance stability against temperature fluctuations, aging, and environmental stress.

 

Widely utilized in key applications such as power management systems, battery management systems (BMS), motor drives, renewable energy inverters (solar/wind), industrial automation equipment, and precision test instruments, the precision sampling resistor enables reliable overcurrent protection, closed-loop current regulation, energy monitoring, and performance optimization of electronic systems-making it an indispensable component for achieving high-precision control and measurement in modern electronics.

 

Features

 

Feature:
Stable performance
Low ohm
Low inductance
Easily solder, high reliability,high overload capability

Appliacation:
Current Sensing, Drive technology, Power Electronic, Hom Appliance, Communication System

 

Drawing

 

 

Rated Power		P±0.3	H±2	H1±2	L±0.5	B±0.2	D±0.1	D1±0.05
3W		10	14.7	10.2	4.5	3.0	0.8	0.8
3W		10	14	10	4.5	2.7	0.8	0.8
3W		10	16.5	12	4.5	3.0	0.8	0.8
3W		10	23	18	4.5	2.4	0.8	0.8

 

Detailed Photos