SP20F WELWYN [Welwyn Components Limited], SP20F Datasheet - Page 2

• Manufacturer Part Number: SP20F
• Description: General-Purpose Failsafe Moulded Wirewound Resistors
• Manufacturer: WELWYN [Welwyn Components Limited]

96
General-Purpose Failsafe
Moulded Wirewound Resistors
SP20/SP20F Series
Performance Data
*0.1 ohm SP20F <1000 ppm.
SP20 Power Derating
SP20F Typical Fusing
Packaging
Resistors are supplied tape and reel. 4,000 pcs per reel.
© Welwyn Components Limited
Telephone: [phone] · Facsimile: [phone] · Email: [e-mail] · Website: www.welwyn-tt.com
Test
Temperature coefficient (ppm)
Dielectric withstanding voltage
Momentary overload
Low temperature operation
Temperature cycle
Humidity
Load life
Terminal strength
Resistance to solder heat
Ambient Temperature ( C)
Time (seconds)
Bedlington, Northumberland NE22 7AA, UK
0.1 ohm
1 ohm
10 ohm
100 ohm
1000 ohm
ppm/°C
RMS
%
%
%
%
%
%
%
SP20F Power Derating
SP20 and SP20F Temperature Rise
2.5
2.0
1.5
1.0
0.5
0
0
<1R ±800
1R ±150
SP20
Ambient Temperature ( C)
50
Power Input (watts)
100
Welwyn Components
700V
5
5
5
5
5
5
5
150
<1R ±800*
1R ±150
200
SP20F
Issue B · 03.02