参数资料
型号: RC0201JR-0768KL
厂商: Yageo
文件页数: 4/16页
文件大小: 0K
描述: RES 68K OHM 1/20W 5% 0201 SMD
产品目录绘图: Thick Film Resistor Top
Thick Film Resistor Side
标准包装: 1
系列: RC0201
电阻(欧姆): 68k
功率(瓦特): 0.05W,1/20W
复合体: 厚膜
温度系数: ±200ppm/°C
容差: ±5%
封装/外壳: 0201(0603 公制)
尺寸/尺寸: 0.024" L x 0.012" W(0.60mm x 0.30mm)
高度: 0.010"(0.26mm)
端子数: 2
包装: 标准包装
产品目录页面: 2235 (CN2011-ZH PDF)
其它名称: 311-68KNDKR
Product specification
4
N O I S E
Chip Resistor Surface Mount
Thick film technology
Size 1206
INTRODUCTION
16
Most resistors generate noise due to the passage of
current through the resistor. This noise is dependent
on the amount of current, the resistive material and
the physical construction of the resistor. The
physical construction is partly influenced by the laser
noise
level
μ V
V
36
32
SCR028
trimming process, which cuts a groove in the
resistive material. Typical current noise levels are
shown in Fig. 2.
F R E Q U E N C Y B E H A V I O U R
Resistors in general are designed to function
according to ohmic laws. This is basically true of
rectangular chip resistors for frequencies up to 100
kHz. At higher frequencies, the capacitance of the
terminations and the inductance of the resistive path
length begin to have an effect.
Basically, chip resistors can be represented by an
ideal resistor switched in series with a coil and both
switched parallel to a capacitor. The values of the
capacitance and inductance are mainly determined by
the dimensions of the terminations and the
conductive path length. The trimming pattern has a
negligible influence on the inductance, as the path
length is not influenced. Also, its influence on the
capacitance is negligible as the total capacitance is
largely determined by the terminations.
28
24
20
16
12
8
4
The environment surrounding chips (e.g. landing
paths, nearby tracks and the material of the printed-
0
1
10
100
1k
10 k
100 k
1M 10 M
R ( Ω )
circuit board) has a large influence on the behaviour
of the chip on the printed-circuit board.
Fig. 2 Typical noise levels as a function of rated resistance
www.yageo.com
Mar 25, 2008 V.7
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