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Welwyn Electronics Park Bedlington, Northumberland
Cramlington, England-NE227AA, United Kingdom+(44)-1670-822181
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Ultra Precision Bulk Metal Film Resistors

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Tolerances down to 0.005%
• Current noise and distortion below level
of practible measurement
• Low thermal e.m.f
• Ideal resistor for precision instrumentation
• Use of bulk metal gives superior stability
• Planar construction gives low residual
capacitance and inductance
Commercial 4802/12/32 4804 4805 Notes
Power Rating at 70°C watts 0.5 1 1.5
Resistance Range ohms 1R0 to 100K 0R5 to 200K R33 t o 3 00K
Limiting element voltage volts 200 350 500
TCR (20 to 70°C) ppm/°C 5 5 5
Resistance tolerance See table 1 below
4802/12
0.25
100 to 56K
200
5
Thermal impedance °C/watt 250 130 80
Values E24 and E96 preferred Any value to order
Ambient temperature range °C -55 to 155 All styles and products

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