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300110WR003

Ultra-precision wirewound resistor, ±2ppm/°C TCR, ±20ppm/year stability, epoxy molded axial

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Pieza del fabricante：

300110WR003

Paquete：

Axial Lead (varies by model)

Marca：
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Compromiso de calidad
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Descripción

Productos

The 300110WR003 is a precision wirewound resistor from the Vishay MR300 series, designed for ultra-precision and high-stability applications. This axial lead resistor features epoxy molding for environmental protection, with temperature coefficients down to ±2ppm/°C and long-term stability of ±20ppm/year. The device offers resistance values up to 6MΩ with tolerances down to ±0.005%, making it ideal for precision measurement and instrumentation applications.

Especificaciones

Resistor Type Ultra Precision Wirewound
Temperature Coefficient ±2 ppm/°C to ±30 ppm/°C
Long-term Stability ±20 ppm/year
Tolerance Down to ±0.005%
Resistance Range 1Ω to 6MΩ (varies by model)
Encapsulant Epoxy molded
Terminals 100% matte tinned copper (axial)
Dielectric Withstanding 750 VAC
Temperatura de funcionamiento -55°C to +145°C
Element Nickel-chrome alloy

Características

  • Ultra-precision resistance with tolerances down to ±0.005%
  • Exceptional stability of ±20ppm per year
  • Temperature coefficients as low as ±2ppm/°C
  • Matched resistance sets available for precision divider applications
  • Epoxy molded construction for moisture and mechanical protection
  • Halogen-free and green device compliant

Aplicaciones

  • Precision instrumentation and measurement equipment
  • Medical device calibration circuits
  • Test and measurement bridges
  • Reference voltage dividers
  • Aerospace and defense electronics

The Vishay 300110WR003 is an ultra-precision wirewound resistor from the MR300 series, designed for applications requiring the highest levels of accuracy and long-term stability. The resistor features a nickel-chrome alloy element wound on a molded epoxy core, encapsulated in flame-retardant epoxy for superior environmental protection. With temperature coefficients as low as ±2ppm/°C and long-term stability of ±20ppm/year, this resistor is suitable for the most demanding precision applications. Resistance tolerances are available down to ±0.005%, enabling use in calibration and reference circuits. The 100% matte tinned copper terminals ensure reliable solderability, and the device meets RoHS requirements. Matched resistance sets are available for precision voltage divider and bridge applications.

The MR300 series wirewound resistor operates on the principle of electrical resistance in a fine nickel-chrome alloy wire. The resistance value is precisely determined by the wire material’s resistivity, length, and cross-sectional area. The wire is wound on an insulating core in a bifilar pattern to minimize inductance. The epoxy encapsulation provides mechanical protection, moisture resistance, and thermal insulation to ensure long-term stability. The low temperature coefficient is achieved by selecting specific nickel-chrome alloys whose resistance changes minimally with temperature. The precision tolerance is achieved through careful winding control and laser trimming. The ±20ppm/year stability results from stress-relief annealing and the hermetic-like protection of the epoxy molding, which prevents oxidation and contamination of the resistance element.

Pin Nombre Tipo Función
1 Terminal 1 Connection Axial lead connection, tinned copper
2 Terminal 2 Connection Axial lead connection, tinned copper
  • Precision instrumentation and measurement bridge circuits
  • Medical device calibration and reference networks
  • Aerospace and defense precision electronics
  • High-accuracy voltage dividers and reference circuits
  • Test equipment and standards laboratory instruments
Fabricante Número de pieza Paquete Notas
Vishay Z201 Series Axial Bulk metal foil, even better TCR
Vishay VHP100 Axial Hermetic seal wirewound
TE Connectivity HS5 Series Axial Precision wirewound resistor
Riedon VSMP Series Axial Precision wirewound, low TCR
Precision Resistor 1000 Series Axial Ultra-precision wirewound
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Tel / WhatsApp: +86 13760382860

Servicio y embalaje

Materialparts is a professional electronic component supplier based in Shenzhen, China, with over 20 years of global trading experience. We integrate component procurement, quality inspection, technical support, customized packaging, and global delivery services to provide one-stop supply chain solutions. Our business covers industrial control, automotive electronics, consumer electronics, medical devices and other industries. We always adhere to genuine sources, stable supply and considerate after-sales service.

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All products are sourced from official authorized channels and are 100% original genuine parts. Every batch of goods undergoes strict full-process quality inspection before delivery, with complete batch records and traceability documents provided. Our products comply with AEC-Q standards for automotive electronics and high-reliability specifications for medical devices. We eliminate counterfeits, refurbished parts and defective products from the source to secure your project production.

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Contact Information

For service consultation or packaging customization, please feel free to contact us:
Email: info@materialparts.com
Tel / WhatsApp: +86 13760382860
Address: Room 2919, Guoli Building, Huaqiang North, Futian District, Shenzhen, Guangdong, China
 

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