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KWX Film Resistors MFR

Product catalog summary

Features and Construction
1. The resistors have a low temperature coefficient, high precision, and good high-frequency performance.
2. They operate in ambient temperatures ranging from -55℃ to +155℃.
3. The metal film is applied in a vacuum, with a blue resin coating that is waterproof.
4. Resistance tolerance is available at ±5% and ±1%.

Components
a. High AL2O3
b. High Stability Electric Conduction Film
c. Iron Cap
d. Epoxy Resin Coating
e. Color Ring
f. Tinned copper lead wire

Dimensions and Ordering Information
The resistors are available in various power ratings and dimensions, with specific codes for ordering:
1. Series Name: MFR
2. Power Rating: 01B=1W, 02S=2WS, 02B=2W, etc.
3. Tolerance: F=±1%, J=±5%
4. Resistance Value: Examples include 0R100=0.1Ω, 10K00=10KΩ, 1M000=1MΩ

Reference Standards
The resistors conform to JISC 5201-1 standards, with detailed specifications for each type and power rating.

Applications and Ratings
The resistors have a wide resistance range (0.1Ω to 22MΩ) and are rated for various voltages, including maximum working, overload, pulse, and insulation voltages.

Performance and Testing
1. Temperature coefficient: ±50ppm/℃ to ±100ppm/℃.
2. Short time overload and pulse overload tests are conducted to ensure reliability.
3. Load life in humidity and heat tests are performed to assess durability.
4. Resistance to soldering heat and solderability are tested to ensure quality.

Notes
a. "S" indicates a small size.
b. Rated voltage is calculated as Power x Resistance Value.
c. If the calculated rated voltage exceeds the maximum working voltage, the lower value is used.

Catalog excerpts

0 Features I Low temperature coefficient, high precision, and good high frequency performance. H Operating ambient temperature:-55°C ~ + 155°C H Film the metal in vacuum, the surface coating is blue resin with the good waterproof. IVResistance tolerance: ± 50% ± 1%. Series Name Power Resistance Rating Tolerance

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