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Power Resistor 25W 5% 2,2R
Varenummer:101-561
Varekode:RCH25E002,2
Vægt:5.5g
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Inkl. moms:
Kr. 64,69
v/10Kr. 54,99
v/25Kr. 51,75
v/100Kr. 48,51
RCH25E002,2RCH25E002,2 DimensionsRCH25E002,2 DeratingRCH25E002,2 RCH25_RCH25E002,2 DimensionsRCH25E002,2 Derating
Produkt: Modstand
Modstand: 2,2Ω
Tolerance: ±5%
Effekt, max.: 25W
GROUP:C1492
Gruppe: C1492
VISHAY Power Thick Film Resistors
Series: RCH25
Power: 25W
Tolerance: 5%

Features
• 25W at heatsink mounted (optional)
• Compact size
• Easy mounting
• High insulation: 106MW
Technical Specifications
Tolerance:
±5%
Power Rating
Without Heatsink:
4W
With Heatsink1):
25W
Operating Voltage, Max.:
550V
Dielectric Strength:
3500V
Temperature Coefficient
<1W:
±250ppm/°C
>1W:
±150ppm/°C
Thermal Resistance:
1,4°C/W
Temperature Range:
-55...+125°C
Climatic Category:
55/125/56
Derating:
See Curve
1) For calculation of heatsink please see values below Note
Note
• You will find suitable heatsinks at product group G9511.
Calculation of heatsink
P = DT / [RTH(j-c) + RTH(c-a)]

P = Expressed in W
DT = Difference between maximum working temperature (125°C) and room temperature
RTH(j-c) = Thermal resistance of the component
RTH(c-a) = Thermal resistance of the heatsink and quality of fastening device

Example:
Ambient Temperature 50°C, Power Rating: 20W
1) P = DT / [RTH(j-c) + RTH (c-a)]
2) DT = 125°C - 50°C = 75 K
3) [RTH(j-c) + RTH (c-a)] = DT / P = 75K / 20W = 3,75K/W4) RTH (c-a) = 3,75K/W - 1,4K/W = 2,35K/W
Terms of Delivery
Minimum order quantity: 1 PKU = 2 pieces
Manufacturer

http://www.vishay.com
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Inkl. moms:
Kr. 7,05
v/10Kr. 4,14
v/25Kr. 3,83
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Varenummer: 30-389

Varekode: W11410


Inkl. moms:
Kr. 5,00
v/10Kr. 3,50
v/100Kr. 2,50
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