EMC2-47RKI TT Electronics/Welwyn, EMC2-47RKI Datasheet - Page 2

• Manufacturer Part Number: EMC2-47RKI
• Description: RES 47 OHM 2W 10% AXIAL
• Manufacturer: TT Electronics/Welwyn
• Series: EMCr

Specifications of EMC2-47RKI

• Featured Product: EMC Series Film Resistors
• Resistance (ohms): 47
• Number Of Terminations: 2
• Package / Case: Axial
• Power (watts): 2W
• Composition: Metal Film
• Features: Flame Proof, Fusible, Pulse Withstanding
• Temperature Coefficient: ±100ppm/°C
• Tolerance: ±10%
• Size / Dimension: 0.157" Dia x 0.394" L (4.00mm x 10.00mm)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Height: -
• Other names: 985-1022-3

EMC resistors fuse open circuit at overload powers
exceeding 60W within the time indicated on the
Fusing Characteristic. Their fusing performance at
lower overload powers is not specified.
EMC resistors fuse safely in the event of a 115Vrms /
240Vrms overload (line / mains short circuit
condition) without burning or emitting incandescent
particles.
After fusing, the resistance is at least 100 times
greater than the original nominal value.
Flammability
The resistor coating is UL94-V0 rated and will not burn or emit incandescent particles under any condition of applied
temperature or power overload.
Marking
EMC resistors are colour coded with five bands. Four of the bands indicate value and tolerance in accordance with
IEC62. Parts with 20% tolerance have no fourth band. A fifth yellow band denotes constant voltage fusibility.
Performance Data
Load at Rated Power: 1000hrs @ 70°C
Shelf life: 12 months at room temperature
Derating from rated power at 70°C
Climatic
Climatic Category
Temperature rapid change
Resistance to solder heat
Pulse Performance
Fusing Performance
General Note
Welwyn Components reserves the right to make changes in product specification without notice or liability.
All information is subject to Welwyn’s own test data and is considered accurate at time of print.
Welwyn Components Limited
Welwyn Electronics Park, Bedlington, Northumberland, NE22 7AA, England. Tel: [phone] Fax: [phone] Web: www.welwyn-tt.com
700
600
500
400
300
200
100
IEC61000-4-5 1.2/50µs Pulse
0
0
10
20
Value (Ohms)
30
40
50
60
∆R%
∆R%
∆R%
∆R%
∆R%
70
10000
20
15
10
1000
100
5
0
10
1
40
0.01
Single Rectangular Pulse
Fusing Characteristic
50
(4R7-8R2)
0.1
Zero at 155°C
(Constant Voltage)
Maximum
50/155/56
Pulse Duration (ms)
60
Initial Power (W)
0.5
0.5
1
5
2
3
70
10
A subsidiary of TT electronics plc
(10R-68R)
80
100
90 100
1000
10000
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