SPP Datasheet, PDF (2/2 Pages) Welwyn Components Limited – General Purpose Wirewound Resistors

General Purpose
Wirewound Resistors
SPP Series
Welwyn Components
Performance Data
Temperature Coefficient
Thermal Shock
Low Shock
Short Time Overload
Commercial Short Time Overload
Resistance to Solder Immersion
Solderability
Moisture Resistance
Life Test
Test Method
SPP-1
SPP-2
SPP-3
Maximum Limits
±600/°C 0.10Ω-0.91Ω
±300/°C 1.0Ω-1200Ω
±600/°C 0.10Ω-0.91Ω
±300/°C 1.0Ω-2400Ω
±600/°C 0.10Ω-0.91Ω
±600/°C 1.0Ω-2400Ω
±5%
±5%
±5%
±5%
±3%
95% minimum coverage
±5%
±5%
EIA Specification RS-344
Power Derating:
100
80
SPP-3
60
SPP-1, 2
40
20
0
0 50 100 150 200 250 300
Ambient Temperature (°C)
Temperature Rise:
300
SPP-3
SPP-2
200
100
SPP-1
0
0 20 40 60 80 100
Percent Rated Power
Packaging
Resistors are supplied taped and reeled. 4,000 pcs per reel.
Bulk pack available.
© Welwyn Components Limited Bedlington, Northumberland NE22 7AA, UK
Telephone: [phone] · Facsimile: [phone] · Email: [e-mail] · Website: www.welwyn-tt.com
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Issue B · 03.02