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Welwyn Electronics Park Bedlington, Northumberland
Cramlington, England-NE227AA, United Kingdom+(44)-1670-822181
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Vitreous Enamelled Wirewound Resistors

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Vitreous Enamelled
Wirewound Resistors
V700 (RB Style) Series
• Stability for harsh environments
• Overload characteristics ideal for
protection circuits
• High stability and reliability
• High power dissipation for size
• Impervious lead free vitreous enamel coating
Standard values E24 preferred. Other values to special order
Thermal impedance °C/watt 44 32 88 36 58
Ambient temperature range °C -55 to 200

Vitreous Enamelled Wirewound Resistors

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Terminations
Material Copper clad steel wire, nickel plated and
solder-coated.
Vitreous Enamelled
Wirewound Resistors
V700 (RB Style) Series
Welwyn Components
Actual Performance
Maximum Typical
Load at rated power: 1000 hrs R% 5 3.5
Dry heat: 1000 hours at 200°c R% 2
Shelf life: 12 mths at room temp R% 0.03 0.02
Derating from rated power at 25°C R% See derating curve
Short term overload R% 1.5 0.5
Climatic R% 0.5 0.2
Climatic category R% 55/200/56 55/200/56
Long term damp heat R% 0.05 0.02
Temperature rapid change R% 0.5 0.05
Resistance to solder heat R% 0.25 0.03
Vibration R% 0.25 0.05
Noise (μV/V in a decade of freqency) zero
Shock R% 0.2 0.05

Vitreous Enamelled Wirewound Resistors

FOB Price : Get Price

CECC approved
• Suitable for harsh environments
• Impervious lead free vitreous enamel coating
• Overload characteristics ideal
for protection circuits
• High stability and reliability
• High power dissipation for size

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