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MFR25H0001JA1 Datasheet(PDF) 4 Page - Vishay Siliconix |
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MFR25H0001JA1 Datasheet(HTML) 4 Page - Vishay Siliconix |
4 / 9 page Document Number: 28737 For technical questions, contact: filmresistors.leaded@vishay.com www.vishay.com Revision: 21-Feb-08 129 NFR25/25H Fusible, Non-Flammable Resistors Vishay BCcomponents The power that the resistor can dissipate depends on the operating temperature. The resistors will fuse without the risk of fire and within an indicated range of overload. Fusing means that the resistive value of the resistor increases at least 100 times. The fusing characteristic is measured under constant voltage. Maximum dissipation ( Pmax.) in percentage of rated power as a function of the ambient temperature ( Tamb) Derating Fusing Characteristics 70 100 50 0 0 50 100 155 - 55 Tamb (°C) Pmax. (% Prated) 103 102 10 1 10- 1 12 4 0 8 Poverload (W) t (s) 16 20 24 NFR25 This graph is based on measured data which may deviate according to the application. Fusing Characteristics: ≤ 1 Ω 10 3 10 2 10 1 12 4 0 8 P overload (W) t (s) 10 - 1 NFR25 This graph is based on measured data which may deviate according to the application. Fusing Characteristics: 1 Ω ≤ R ≤ 15 Ω 103 102 10 1 10 - 1 12 4 0 8 Poverload (W) t (s) 16 20 24 NFR25H This graph is based on measured data which may deviate according to the application. Fusing Characteristics: ≤ 1 Ω 10 3 10 2 10 1 12 4 0 8 Poverload (W) t (s) 10 - 1 NFR25 This graph is based on measured data which may deviate according to the application. Fusing Characteristics: 15 Ω ≤ R ≤ 15 kΩ 103 102 10 1 12 4 0 8 Poverload (W) t (s) 16 20 24 10- 1 NFR25H This graph is based on measured data which may deviate according to the application. Fusing Characteristic: 1 Ω ≤ R ≤ 15 kΩ |
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