参数资料
型号: LVK25R001FER
厂商: Ohmite
文件页数: 1/2页
文件大小: 0K
描述: RES .001 OHM 2W 1% 2412 WIDE
产品培训模块: Current Sensing Resistors
产品目录绘图: LVK Series Schematic
LVK25 Series Top
LVK25 Series Side
LVK25 Series Bottom
特色产品: LVK Series Resistors
标准包装: 1
系列: LVK
电阻(欧姆): 0.001
功率(瓦特): 2W
复合体: 厚膜
特点: 电流检测
温度系数: ±300ppm/°C
容差: ±1%
封装/外壳: 2412(6231 公制)宽(长端),1224(3162 公制)
尺寸/尺寸: 0.126" L x 0.252" W(3.20mm x 6.40mm)
高度: 0.028"(0.70mm)
端子数: 4
包装: 标准包装
产品目录页面: 2260 (CN2011-ZH PDF)
其它名称: LVK25R001FERDKR
ELEMEMT
KELVIN
CONNECTION
LVK Series
Four Terminal High Precision Current Sense
Current sense resistors enable the measurement of current flow
in a circuit by monitoring a voltage drop across a precisely cali-
brated resistance. The LVK chip features four terminals, also
known as a “Kelvin” configuration. This configuration enables
current to be applied through two opposite terminals and a
sensing voltage to be measured across the other two terminals,
eliminating the resistance and temperature coefficient of the ter-
minals for a more accurate current measurement.
Isolating the voltage and current terminals (see schematic)
facilitates a very accurate current measurement. Ohmite’s pro-
prietary technology offers an excellent Temperature Coefficient
of Resistance (TCR) even for very low resistance values. The
resistive element consists of a durable, anti-corrosive metal
alloy that combines reliable performance with the ability to with-
stand harsh environments.
F E AT U R E S
? Designed for automatic insertion
? Industry standard sizes
? High-precision kelvin connect capabil -
ity in a small package
S E R I E S S P E C I F I C AT I O N S
Power
Resistance
Series
LVK12
LVK20
LVK24
Pkg.
Size
1206
2010
2412
Rating
(W @70°C)
0.5W
0.75W
1.0W
Range
( Ω )
0.01-0.05
0.01-0.05
0.01-0.05
TCR
(ppm/°C)
50PPM
50PPM
50PPM
Tolerance
0.5%, 1%
0.5%, 1%
0.5%, 1%
Available
Values
E12
E12
E12
0.001
300PPM
1, 2, 3, 4,
LVK25
1224
2.0W
0.002-0.004
0.005-0.01
200PPM
100PPM
1%
5, 6, 7, 8,
9, 10M Ω
CHARACTERISTICS
PERFORMANCE CHARACTERISTICS
Resistance Range 0.001 Ω - 0.05 Ω
Operating -40°C TO +125°C
Temperature Range
Rated Ambient +70°C
Temperature
Resistance 0.5% AND 1% STAN -
Tolerance DARD
Temperature LVK12, LVK20, LVK24:
Coefficient 50PPM STANDARD
LVK25: 100PPM,
200PPM, OR 300PPM
BASED ON RESISTANCE
VALUE
Coating Material EPOXY RESIN
Performance
Test Items Requirements
Overload ±(0.5%+0.0005 Ω )
Endurance at ±(0.5%+0.0005 Ω )
70°C
Moisture ±(0.5%+0.0005 Ω )
resistance
Rapid change ±(0.5%+0.0005 Ω )
of temperature
Resistance to ±(0.5%+0.0005 Ω )
soldering heat
Test Methods
RATED VOLTAGE X 1.5 FOR
5S
70°C±3°C, RATED VOLT -
AGE 1.5H ON, 0.5H OFF,
1000H
60°C±2°C, 90%^95%
RH, RATED VOLTAGE 1.5H
ON, 0.5H OFF, 1000H
-40°C (30MIN.)/+125°C
(30MIN.), 5 CYCLES
260°C±5°C FOR 10S±1S
Schematic
Terminals 100% MATTE TIN
V
V
Substrate ±(0.5%+0.0005 Ω )
bending
BENDING WIDTH: 2MM FOR
10S±1S, GLASS EPOXY
SUBSTRATE WITH THICKNESS
OF 1.6MM
I I
V = SENSING TERMINAL
(VOLTAGE)
I = CURRENT TERMINAL
Solderability 95% OR MORE OF THE 245°C±5°C FOR 3S±0.5S
ELECTRODE SURFACE
SHALL BE COVERED
WITH NEW SOLDER
2
1-866-9-OHMITE ? INT’L 1-847-258-0300 ? FAX 1-847-574-7522 ? WWW.OHMITE.COM ? INFO@OHMITE.COM
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