Dongguan Ampfort Electronics Co., Ltd.
                                                                                                           
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High Precision Constantan Wire Sampling Resistor 5W with ±50ppm/℃ TCR - 3mΩ to 50mΩ Resistance Range

Price Negotiable
Price: Negotiable
MOQ: 1000pcs
Delivery Time: 1-2 Weeks
Brand: CNAMPFORT
Product Description
High Precision Current Sensing Resistor

Professional welding type sampling resistor with low temperature coefficient and excellent stability for accurate current measurement applications.

Product Overview

This welding type sampling resistor features high precision current sensing capabilities with low temperature coefficient resistance (TCR) for reliable performance across varying temperature conditions. Designed for industrial and electronic applications requiring accurate current measurement.

Key Features
  • Low temperature coefficient of ±40ppm/℃ for stable performance
  • High power rating up to 5 watts with excellent thermal stability
  • Precision tolerance options: 1%, 2%, 3%, and 5%
  • Advanced welding technology ensures reliable connections
  • Excellent solderability and oxidation resistance
  • Wide operating temperature range up to 480℃
  • ROHS compliant and lead-free construction
  • Customizable resistance values and dimensions
Technical Specifications
Parameter Specification
Product Type Welding Type Sampling Resistor
Standard Resistance Values 3mΩ, 4mΩ, 5mΩ, 6mΩ, 8mΩ, 10mΩ, 12mΩ, 15mΩ, 20mΩ, 50mΩ
Power Rating Up to 5 Watts
Tolerance Options 1%, 2%, 3%, 5%
Material Constantan Wire
Temperature Coefficient (TCR) ±50ppm/℃
Pitch 10mm
Resistance Range 1mΩ - 200mΩ (customizable)
Wire Dimensions 0.25×3.0mm to 1.0×6.0mm
Application Areas

Ideal for current sensing applications in drive technology, household electric appliances, frequency converters, power supply products, and industrial control systems.

Product Images
High precision welding type sampling resistor close-up view showing construction details
Welding type resistor showing terminal connections and wire configuration
Sampling resistor with M-type special shape design for optimal performance
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Get in Touch

Have questions about our products or want to discuss a custom order? Our team is ready to help you.

Company Dongguan Ampfort Electronics Co., Ltd.
Location Floor 5,Changlong Industrial Building,No.6,Jiangnan Road,Jingshan,Chashan Town,Dongguan 523323,China
Contact Person Annie Fang

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