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KWX Thermal Fuse FRK

Product catalog summary

Construction Features:
The FRK fusible resistor is constructed with a particle temperature fuse spiral resistor rated at 7W. It is designed to be free of lead and cadmium, aligning with RoHS standards. The resistor is optimized for excellent cut-off characteristics during overload situations and is particularly effective in preventing inrush current due to its superior resistor element.

Dimensions:
The power dimensions are specified in millimeters with tolerances, ensuring precise manufacturing standards.

Specifications:

Type: FRK Series
Power Rating: 07 = 7W
Resistance Tolerance: J = ±5%
Resistance Value: 1.8 to 820Ω
Temperature Ratings: T13 = 133°C, T15 = 157°C

Reference Standards:
The product adheres to JIS C 5201-1 standards.

Ordering Information:
Includes series name, power rating, resistance tolerance, resistance value, and temperature specifications.

Performance and Testing:

Fusing performance is detailed with a derating curve and cut-off times at various temperatures.
Test items include resistance, operating temperature, insulation resistance, withstand voltage, and T.C.R. (±250ppm/°C).
Performance requirements are specified for resistance tolerance, short time overload, resistance to soldering heat, terminal strength, moisture resistance, and load life features.

Key Performance Metrics:

Rated Power: 3W to 4W at 25°C
Rated Resistance Value: 1.8 to 820Ω
Rated Operating Temperature: 133°C to 157°C
Rated Voltage: AC250V
Rated Current: 15A

Testing Methods:
Includes procedures for measuring resistance, insulation resistance, and withstand voltage, ensuring compliance with specified tolerances and performance under various conditions.

Catalog excerpts

% Features I The product is made up of particle temperature fuse spiral resistor of 7W. H FRK is not consist of lead, Cadmium. (RoHs target products) EFRKcan develop its excellent cut off characteristics when overload situation. ^Especially adopted the resistor element that has superior characteristics to the inrush current, which is most suitable to prevent inrush current. V The impact resistor properties. Resistance Temperature Series Name Power Resistance Rating Tolerance

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% Derating Curve % Fusing performance. # Fusing features SHENZHEN KWX ELECTRONICS CO., LTD Http: //www.kwxcom.com

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