RD41
fixed carbon film melf resistor
EU
features
•
•
•
•
•
Suitable for reflow and wave soldering
Metal plate terminals
Meets or exceeds IEC 60115-8, EIAJ RC-2131A
Marking: Ivory body color with three color-coded bands
Products with lead-free terminations meet EU RoHS
and China RoHS requirements
dimensions and construction
C
L
D3
Type
(Inch Size Code)
L
.079±.004
(2.0±0.1)
.138±.008
(3.5±0.2)
.126±.008
(3.2±0.2)
.232±.008
(5.9±0.2)
Dimensions
inches
(mm)
C (min.)
D1
D2 (max.) D3 (max.)
.012
(0.3)
.02
(0.5)
.02
(0.5)
.02
(0.5)
.049±.002
(1.25±0.05)
.057±.004
(1.45±0.1)
.061±.006
(1.55±0.15)
.087±.004
(2.2±0.1)
.053
(1.35)
.061
(1.55)
.069
(1.75)
.094
(2.4)
.003
(0.07)
.004
(0.1)
.006
(0.15)
2A
(0805)
D1 D2
2B
(1406)
2D
(1206)
Insulation
Coating
Trimming Resistive
Line
Film
Ceramic
Core
End
Cap
2E
(2309)
Marking
ordering information
New Part #
RD41
Type
2B
Size
2A
2B
2D
2E
T
Termination
Material
T: Sn
TE
Packaging
TE: 7" embossed plastic
(2A, 2B - 3,000 pieces/reel)
(2D - 2,000 pieces/reel)
(2E - 1,500 pieces/reel)
103
Nominal
Resistance
2 significant
figures + 1
multiplier
“R” indicates
decimal on
value <10Ω
J
Tolerance
G: ±2%
J: ±5%
For further information on packaging,
please refer to Appendix A.
Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use.
1/13/09
KOA Speer Electronics, Inc.
• 199 Bolivar Drive • Bradford, PA 16701 • USA • 814-362-5536 • Fax: 814-362-8883 • www.koaspeer.com
87
resistors
RD41
resistors
fixed carbon film melf resistor
applications and ratings
Part
Designation
RD412A
RD412B
RD412D
RD412E
Power
Rating
@ 70°C
0.125W
0.125W
0.2W
0.25W
Resistance
Range
E-24*
2.2Ω - 1.0MΩ
2.2Ω - 1.0MΩ
1.0Ω - 1.0MΩ
1.0Ω - 2.2MΩ
Absolute
Maximum
Working
Voltage
150V
200V
200V
300V
Absolute
Maximum
Overload
Voltage
200V
400V
400V
600V
G: ±2%
J: ±5%
-55°C to +155°C
Resistance
Tolerance
Operating
Temperature
Range
* See Appendix D for available decade values.
environmental applications
Derating Curve
100
80
% Rated Power
60
40
20
0
Surface Temperature Rise
50
40
30
20
10
0
2E
2B
2D
Temperature Rise
(°C)
2A
0
20
40
60
80
100
120
140
70
Ambient Temperature
(°C)
160
155
0
25
50
75
100
% Rated Power
Performance Characteristics
Parameter
Resistance
T.C.R.
Overload (Short time)
Intermittent Overload
Resistance to Solder Heat
Rapid Change of Temperature
Moisture Resistance
Endurance at 70°C
Low Temperature Operation
High Temperature Exposure
Requirement
∆
R
Limit
Typical
Within specified
—
tolerance
Within specified
—
T.C.R.
±1.0%
±0.5%
±1.0%
±1.0%
±1.0%
±5.0%
±2.0%
±1.0%
±2.0%
—
±0.5%
±0.75%
±2.5%
±1.0%
±0.75%
±1.0%
Test Method
25°C
+25°C/-55°C, +25°C/+125°C
Rated voltage x 2.5 for 5 seconds
Rated voltage x 4 (2Ax3) or Max. intermittent overload voltage,
whichever is lower, 10,000 cycles. 2A: 300V, 2B: 400V, 2D: 500V, 2E: 600V
260°C ± 5°C, 10 seconds ± 1 second
-55°C (30 minutes), +125°C (30 minutes), 5 cycles
40°C ± 2°C, 90 - 95% RH, 1000 hours, 1.5 hr ON, 0.5 hr OFF cycle
70°C ± 2°C, 1000 hours, 1.5 hr ON, 0.5 hr OFF cycle
-55°C, 1 hour
+125°C, 100 hours
Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use.
12/23/08
88
KOA Speer Electronics, Inc.
• 199 Bolivar Drive • Bradford, PA 16701 • USA • 814-362-5536 • Fax: 814-362-8883 • www.koaspeer.com
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