Current Sensing Resistors - American Accurate Components

Current Sensing Resistors
FEATURES
HOW TO ORDER
LR2512 -
3
Perfection solution of high precision current sensing,
R005 J
voltage division and pulse applications including switching
M
Packaging
M = Tape/Reel (4K/Reel, embossed
tape)
T = Tape/Reel (2K/Reel, embossed
tape)
O = Tape/Reel (1K/Reel, embossed
tape)
and linear power supplies, instruments, power amplifiers.
Extremely low values start from 0.25mΩ
High temperature performance (up to +275°C.
Excellent frequency response.
All welded construction.
Excellent low TCR. and Stable
Tolerance (%)
F = +1 G = +2*
J = +5 D = +0.5
Excellent stability (|∆R/R| ≤ ± 0.5% for 1000h at 100°C)
different environmental conditions.
EIA Resistance Value
R005 = 0.005Ω (5mΩ)
R002 = 0.002Ω (2mΩ)
R010 = 0.001Ω (10mΩ)
APPLICATIONS
Power Supply, PC, Power Pack, Battery Pack
DIY Tools
Power Rating of Watt
Inverter/Converter (AC/DC, DC/DC, DC/AC
Measurable Instrument, Consumer Electronics
Note Book, LED Driver
Series Size
LR2512, LR2010, LR1206, LR2725,
LR2728
Sn Termination
DERATING CURVE
The Category Temperature Range: -65°C~+275°C
For resistors operated in ambient temperature above
100°C,
power rating bust be derated in accordance with the curve below:
Rated Power (%)
120
100
80
60
40
20
0
-65
-50
-25
0
25
50
75
100
125 150 175 200
225 250 275
Temperature (°C)
SPECIFICATIONS
Type
Maximum
Rating
Power
Maximum
Rating
Current
Maximum
Overload
Current
mΩ/TCR
(ppm/°C)
LR1206
0.5W
22.36A
44.72A
1.0~4.0m: +50
4.1~15.0m: -25
15.1~50.0m: -15
American Accurate Components,
Resistance Range (mΩ)**
F ( ±1%);
D (±0.5%) G (±2%); J (±5%)
7.0~50.0
1.0~50.0
188 Technology Drive, Unit H Irvine, CA 92618
TEL: 949-453-9888 FAX: 949-453-8889 Email: sales@aacix.com
Operating
Temperature
-65~+275°C
1
Current Sensing Resistors
LR2010
LR2512
LR2725
LR2728
a.
b.
1W
31.62A
63.25A
1W
31.62A
63.25A
1W
44.72A
100.00A
1.5W
54.77A
122.48A
2W
63.25A
141.42A
3W
77.46A
134.16A
4W
126.49A
252.95A
3W
27.39A
47.43A
3.5W
29.58A
51.23A
4W
31.62A
63.25A
1.0~4.0m: +50
4.1~15.0m: -25
15.1~50.0m: -15
1.0~3.0m: +50
3.1~6.9m: -25
7.0~100m: -15
0.5~3.0m: +50
3.1~6.9m: -25
7.0~100m: -15
0.5~3.0m: +50
3.1~6.9m: -25
7.0~75m: -15
0.5~2.0m: +50
2.1~10.0m: -25
0.25~0.9m: +50
1.0~3.0m: -25
4.0~7.0m: -25
7.1~100m: -15
4.0~7.0m: -25
7.1~100m: -15
4.0~7.0m: -25
7.1~50m: -15
7.0~50.0
1.0~50.0
3.0~100
1.0~100
7.0~100
0.5~100
7.0~75.0
0.5~75.0
7.0~10.0
0.5~10.0
--
0.25~3.0
4.0~100
4.0~100
4.0~100
4.0~100
4.0~50.0
4.0~50.0
The Maximum Power Rating is operated at 100°C
“**” customize available for tolerance and range of resistance.
RELIABILITY PERFORMANCE
Test Item
Short Time Overload
Dielectric Withstanding
Voltage
American Accurate Components,
Condition of Test
Test Method
Test Limits
The number of rated power are as follow:
• LR1206-0.5W: 4 times rated power
• LR1206-1W: 4 times rated power
• LR2010-1W: 4 times rated power
• LR2512-1W 5 times rated power
• LR2512-1.5W: 5 times rated power
• LR2512-2W: 5 times rated power
• LR2512-3W: 3 times rated power
• LR2725-4W: 4 times rated power
• LR2728-3W: 3 times rated power
• LR2728-3.5W: 3 times rated power
• LR2728-4W: 4 times rated power
Rating power duration: 5 secs
JIS C 5201-1 4.13
±(0.5%+0.0005Ω)∆R
Applied 500VAC for 1 minute & limit surge
current 50mA (max.)
JIS C 5201-1 4.7
Without break down
188 Technology Drive, Unit H Irvine, CA 92618
TEL: 949-453-9888 FAX: 949-453-8889 Email: sales@aacix.com
2
Current Sensing Resistors
DIMENSIONS
Wraparound Termination
Type
Maximum
Power Rating
(Watts)
Resistance
Range (mΩ)
LR1206
0.5 & 1.0
1.0~50.00
LR2010
1.0
1.0~3.0
3.1~100.0
Dimensions – in inches (millimeters)
L
W
H
T
0.120±0.010
(3.048±0.254)
0.062±0.010
(1.575±0.254)
0.200±0.010
(5.080±0.254)
0.100±0.010
(2.540±0.254)
0.245±0.010
(6.248±0.254)
0.130±0.010
(3.302±0.254)
0.0254±0.010
(0.645±0.254)
0.031±0.010
(0.787±0.254)
0.0254±0.010
(0.645±0.254)
0.031±0.010
(0.787±0.254)
0.0254±0.010
(0.645±0.254)
0.0254±0.010
(0.645±0.254)
0.031±0.010
(0.787±0.254)
0.0254±0.010
(0.645±0.254)
0.020±0.010
(0.508±0.254)
0.051±0.010
(1.295±0.254)
0.031±0.010
(0.787±0.254)
0.074±0.010
(1.880±0.254)
0.044±0.010
(1.118±0.254)
0.034±0.010
(0.868±0.254)
0.074±0.010
(1.880±0.254)
0.044±0.010
(1.118±0.254)
0.074±0.010
(1.880±0.254)
0.044±0.010
(1.118±0.254)
0.066±0.010
(1.676±0.254)
0.5~4.0
LR2512
1.0 & 1.5
4.1~75.0
75.1~100.0
0.5~4.0
LR2512
2.0
4.1~75.0
0.5
LR2512
3.0
0.6~2.9
4.1~10.0
0.031±0.010
(0.787±0.254)
3.0~4.0
0.25, 0.50
1.0
1.5
LR2725
4.0
2.0
0.268±0.010
(6.807±0.254)
0.254±0.010
(6.452±0.254)
0.039±0.010
(0.991±0.254)
0.043±0.010
(1.092±0.254)
0.039±0.010
(0.991±0.254)
0.035±0.010
(0.889±0.254)
2.5
3.0
LR2728
3.0 - 3.5 & 4.0
American Accurate Components,
4.0~100.0
0.264±0.010
(6.706±0.254)
0.283±0.010
(7.1880.254)
0.039±0.010
(0.991±0.254)
188 Technology Drive, Unit H Irvine, CA 92618
TEL: 949-453-9888 FAX: 949-453-8889 Email: sales@aacix.com
0.085±0.010
(2.159±0.254)
0.071±0.010
(1.803±0.254)
0.065±0.010
(1.651±0.254)
0.045±0.010
(1.295±0.254)
0.045±0.010
(1.143±0.254)
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Current Sensing Resistors
RATING CURRENT
The following equation may be used to determine the Direct Current and Alternating Currents (RMS, root mean
square value) of normal rater power. However, if the result value exceeds the highest current of regulated standards,
the highest normal rated (see specifications) power is to be used.
I = √(P/R)
Remark:
I: Rating Current
P: Rating Power
R: Resistance
The content of this specification may change without notification 5/15/2015
American Accurate Components,
188 Technology Drive, Unit H Irvine, CA 92618
TEL: 949-453-9888 FAX: 949-453-8889 Email: sales@aacix.com
4