RD41
resistors
fixed carbon film melf resistor
features
•
•
•
•
•
Suitable for reflow and wave soldering
Metal plate terminals
Meets or exceeds EIAJ-8009, EIA-PDP-100
Marking: Ivory body color with three color-coded bands
Products with lead-free terminations meet
RoHS requirements. Pb located in glass material,
electrode and resistor element is exempt per Annex 1,
exemption 5 of EU directive 2005/95/EC
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
(Other termination
styles may be
available, please
contact factory
for options)
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.
2/16/07
84
KOA Speer Electronics, Inc.
• Bolivar Drive • P Box 547 • Bradford, PA 16701 • USA • 814-362-5536 • Fax: 814-362-8883 • www.koaspeer.com
.O.
RD41
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
resistors
* 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
Short Time Overload
Effects of Solder Heat
Thermal Shock
Low Temperature Exposure
High Temperature Exposure
Pulse
Moisture Resistance
Life
Dielectric Withstanding Voltage
2A
2B
2D
2E
Insulation Resistance
Maximum
Δ
R ±(% + 0.05Ω)
±1.0%
±1.0%
±1.0%
±1.0%
±2.0%
±2.0%
Limit ±5.0%, Typical ±2.5%
±3.0%
200V Minimum
400V Minimum
400V Minimum
400V Minimum
10,000 MΩ Minimum
Test Method
MIL-R-55342
π
4.7.5, 2.5 x RCWV* for 5 seconds
MIL-R-55342
π
4.7.7, 260°C for 5 seconds
MIL-STD-202, Method 107, -55°C to +155°C, 5 cycles
MIL-R-55342
π
4.7.4, 1 Hour @ -55°C
100 hours @ 155°C
2.5 x RCWV, not exceeding maximum overload voltage, 1 second ON,
25 seconds OFF, 10,000 cycles
MIL-STD-202, Method 103, 40°C, 90 - 95% RH, 1000 hours
MIL-STD-202, Method 108, 70°C, 1000 hours @ RCWV, 1.5 hr ON, 0.5 hr OFF
1 minute minimum
MIL-STD-202, Method 301
—
* RCWV = Rated Continuous Working Voltage.
Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use.
12/19/05
KOA Speer Electronics, Inc.
• Bolivar Drive • P Box 547 • Bradford, PA 16701 • USA • 814-362-5536 • Fax: 814-362-8883 • www.koaspeer.com
.O.
85