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
Products with lead-free terminations meet EU RoHS
and China RoHS requirements
resistors
dimensions and construction
C
L
D3
Type
(Inch/DIN Size Code)
L
.079±.004
(2.0±0.1)
.126±.008
(3.2±0.2)
Dimensions
inches
(mm)
C
D1
D2 (max.) D3 (max.)
.012
.049±.002
(0.3 min.) (1.25±0.05)
.02
.061±.006
(0.5 min.) (1.55±0.15)
.053
(1.35)
.069
(1.75)
.061
(1.55)
.094
(2.4)
.003
(0.07)
.004
(0.1)
.006
(0.15)
**2A
(0805/0102)
D1 D2
**2D
(1206/0203)
2ES
(1406/0204)
Insulation
Coating
Trimming Resistive
Line
Film
Ceramic
Core
End
Cap
**2E
(2309/0207)
.138±.008 .02 ~ .035 .055±.004
(3.5±0.2) (0.5 ~ 0.9) (1.40±0.1)
.232±.008
(5.9±0.2)
.02
(0.5 min.)
.087±.004
(2.2±0.1)
Marking
*
NOT RECOMMENDED FOR NEW DESIGN
ordering information
RD41
Type
2A
Size
*2A
*2D
2ES
*2E
T
Termination
Material
T: Sn
TE
Packaging
TE: 7" embossed plastic
(2A, 2ES - 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%
*
NOT RECOMMENDED FOR NEW DESIGN
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.
12/20/17
KOA Speer Electronics, Inc.
• 199 Bolivar Drive • Bradford, PA 16701 • USA • 814-362-5536 • Fax: 814-362-8883 • www.koaspeer.com
119
RD41
fixed carbon film melf resistor
resistors
applications and ratings
Part
Designation
**RD412A
**RD412D
RD412ES
**RD412E
Power
Rating
@ 70°C
0.125W
0.2W
0.25W
0.25W
Resistance
Range
E-24 (Ω) +350 – -450
2.2 - 1.0M
1.0 - 1.0M
2.2 - 1.0M
1.0 - 2.2M
2.2 - 47k
1.0 - 47k
2.2 - 47k
T.C.R. (x10
-6
/K)
0 – -700
51k - 220k
51k - 220k
51k - 100k
0 – -1000
0 – -1300
Absolute
Resistance Maximum
Tolerance Working
Voltage
150V
G: ±2%
J: ±5%
200V
200V
300V
Absolute
Rated
Maximum
Ambient
Overload
Temperature
Voltage
200V
400V
400V
600V
+70°C
240k - 470k 510k - 1.0M
240k - 470k 510k - 1.0M
110k - 330k 360k - 1.0M
1.0* - 100k 110k - 330k 360k - 1.0M 1.1M - 2.2M
Operating Temperature: -55°C to +155°C
* 1 – 2Ω: +650 – 0 x 10
-6
/K
Rated voltage =
√
Power Rating X Resistance Value or Max. working voltage, whichever is lower
**
NOT RECOMMENDED FOR NEW DESIGN
environmental applications
Derating Curve
100
80
% Rated Power
60
40
20
0
For resistors operated at an ambient temperature of 70°C
or above, a power rating shall be derated in accordance
with the derating curve.
0
20
40
80
100 120
70
Ambient Temperature
(°C)
60
140
160
155
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 Exposure
High Temperature Exposure
Requirement
∆
R ±(%+0.05Ω)
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. Max. intermittent overload voltage: 2A: 300V, 2ES:
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
+155°C, 2 hours
Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use.
12/20/17
120
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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