RD41
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
For further information on packaging,
please refer to Appendix A.
ordering information
G: ±2%
J: ±5%
T: Sn
(Other termination
styles may be
available, please
contact factory
for options)
2 significant
figures + 1
multiplier
“R” indicates
decimal on
value <10Ω
2A
2B
2D
2E
TE: 7" embossed plastic
(2A, 2B - 3,000 pieces/reel)
(2D - 2,000 pieces/reel)
(2E - 1,500 pieces/reel)
RD41
Type Size Nominal
Resistance Tolerance
Termination
Material Packaging
New Part # 2B TE 103 JT
dimensions and construction
C
L
D3
D1 D2
Insulation
Coating Resistive
Film
Marking Ceramic
Core
Trimming
Line End
Cap
Type
L
2A
(0805)
.079±.004
(2.0±0.1)
.012
(0.3)
.049±.002
(1.25±0.05)
.053
(1.35)
.003
(0.07)
.004
(0.1)
.061
(1.55)
.057±.004
(1.45±0.1)
.02
(0.5)
.138±.008
(3.5±0.2)
2B
(1406)
.069
(1.75)
.061±.006
(1.55±0.15)
.02
(0.5)
.126±.008
(3.2±0.2)
2D
(1206)
.006
(0.15)
.094
(2.4)
.087±.004
(2.2±0.1)
.02
(0.5)
.232±.008
(5.9±0.2)
2E
(2309)
(Inch Size Code) C (min.) D1 D2 (max.) D3 (max.)
Dimensions inches (mm)
84
KOA Speer Electronics, Inc. • Bolivar Drive • P.O. Box 547 • Bradford, PA 16701 • USA • 814-362-5536 • Fax: 814-362-8883 • www.koaspeer.com
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
resistors
1570 Reader's Spreads pg1-188 3/26/07 2:26 PM Page 82
RD41
fixed carbon film melf resistor
Absolute
Maximum
Overload
Voltage
Absolute
Maximum
Working
Voltage
Resistance
Tolerance
Resistance
Range
E-24*
Part
Designation
Operating
Temperature
Range
Power
Rating
@ 70°C
applications and ratings
RD412A
RD412B
RD412D
RD412E
0.125W
0.125W
0.2W
0.25W
2.2Ω- 1.0MΩ
1.0Ω- 1.0MΩ
1.0Ω- 2.2MΩ
2.2Ω- 1.0MΩ
200V150V
400V
400V
600V
-55°C to +155°C
G: ±2%
J: ±5%
200V
200V
300V
* See Appendix D for available decade values.
Derating Curve Surface Temperature Rise
environmental applications
% Rated Power
100
80
60
40
20
20 40 60 80 100 120 140 160
15570
Ambient Temperature
(°C)
00
Temperature Rise
(°C)
50
40
30
20
10
25 50 75 100
% Rated Power
2D
2B
0
0
2A
2E
* RCWV = Rated Continuous Working Voltage.
Performance Characteristics
Parameter
Short Time Overload MIL-R-55342 π4.7.5, 2.5 x RCWV* for 5 seconds
±1.0%
Effects of Solder Heat MIL-R-55342 π4.7.7, 260°C for 5 seconds
±1.0%
Thermal Shock MIL-STD-202, Method 107, -55°C to +155°C, 5 cycles
±1.0%
Low Temperature Exposure MIL-R-55342 π4.7.4, 1 Hour @ -55°C
±1.0%
High Temperature Exposure 100 hours @ 155°C
±2.0%
Moisture Resistance
Dielectric Withstanding Voltage
2A
2B
2D
2E
MIL-STD-202, Method 103, 40°C, 90 - 95% RH, 1000 hours
1 minute minimum
MIL-STD-202, Method 301
Limit ±5.0%, Typical ±2.5%
Insulation Resistance 10,000 MΩMinimum
Maximum ΔR ±(% + 0.05Ω) Test Method
Pulse 2.5 x RCWV, not exceeding maximum overload voltage, 1 second ON,
25 seconds OFF, 10,000 cycles
±2.0%
Life MIL-STD-202, Method 108, 70°C,
1000 hours @ RCWV, 1.5 hr ON, 0.5 hr OFF
±3.0%
200V Minimum
400V Minimum
400V Minimum
400V Minimum
—
85
KOA Speer Electronics, Inc. • Bolivar Drive • P.O. Box 547 • Bradford, PA 16701 • USA • 814-362-5536 • Fax: 814-362-8883 • www.koaspeer.com
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
resistors
1570 Reader's Spreads pg1-188 3/26/07 2:26 PM Page 83
