WP4S-47RJA2 Welwyn Components, WP4S-47RJA2 Datasheet - Page 2

• Manufacturer Part Number: WP4S-47RJA2
• Description: RESISTORS, 47R 4 WATT 5%
• Manufacturer: Welwyn Components
• Series: WP4Sr

Specifications of WP4S-47RJA2

• Resistors Element Type: WIREWOUND CERAMIC
• Resistance: 47R
• Power Rating: 4W
• Tolerance, +: 5%
• Tolerance, -: 5%
• Temp, Op. Max: 155(DEGREE C)
• Temp, Op. Min: -55(DEGREE C)
• Temp. Coeff,: ROHS COMPLIANT

Compact Flameproof Power
Wirewound Resistors
WP-S Series
Terminations
Material:
Strength:
Solderability:
Marking
WP1S, WP2S, WP25S and WP3S resistors R10 and above are marked with four colour bands in conformance with IEC62. Values
below R10 are marked with three bands (two digits indicating value in milliohms, and tolerance); there is no multiplier band.
WP4S, WP5S and WP7S resistors are legend marked with type reference, resistance value and tolerance.
Solvent Resistance
The body protection and marking are resistant to all normal industrial cleaning solvents suitable for printed circuits.
Flammability
The resistor coating will not burn or emit incandescent particles under any condition of applied temperature or power overload.
Performance Data
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Telephone: [phone] · Facsimile: [phone] · Email: [e-mail] · Website: www.welwyn-tt.com
Pulse Performance
The pulse energy capacity limits in the graph below relate to pulses below 100ms duration, low mean power dissipation and at
25ºC.
Load at rated power: 1000hrs @ 25°C
Dry heat: 1000hrs @ 200°C
Short term overload (5 x Pr for 5s)
Derating from rated power @25°C
Climatic
Climatic category
TRC & Vibration
Robustness & solder heat
Long term damp heat (56 days)
100
0.1
10
1
0.1
Hot tin dipped copper wire
The terminations meet the requirements of IEC 68.2.21
The terminations meet the requirements of IEC 115-1 Clause 4.17.3.2
Bedlington, Northumberland NE22 7AA, UK
1
WP-S Short Pulse Energy Capacity
10
Value (ohms)
∆
∆
∆
∆
∆
∆
∆
R%
R%
R%
R%
R%
R%
R%
100
Maximum
5 +0.001Ω
5 +0.001Ω
5 +0.001Ω
5 +0.001Ω
5 +0.001Ω
5 +0.001Ω
5 +0.001Ω
WP1S
WP2S
1000
WP25S
Zero at 280°C
WP5S
55/200/56
Welwyn Components
WP3S
WP7S
WP4S
10000
Typical Change
3
3
1
2
1
1
1
Issue D · 04.06