参数资料
型号: NCP15XM472J03RC
厂商: Murata Electronics North America
文件页数: 8/44页
文件大小: 0K
描述: THERMISTOR 4.7K OHM NTC 0402 SMD
产品培训模块: NTC Thermistors and Simulator
产品目录绘图: NCP Series Side
标准包装: 10
系列: NCP15
在 25°C 时的电阻(欧姆): 4.7k
电阻公差: ±5%
B 值公差: ±3%
B25/50: 3500K
B25/85: 3545K
B25/100: 3560K
工作温度: -40°C ~ 125°C
功率 - 最大: 100mW
安装类型: 表面贴装
封装/外壳: 0402(1005 公制)
包装: 标准包装
产品目录页面: 2830 (CN2011-ZH PDF)
其它名称: 490-2417-6

! Note ? Please read rating and ! CAUTION (for storage, operating, rating, soldering, mounting and handling) in this catalog to prevent smoking and/or burning, etc.
? This catalog has only typical speci?cations. Therefore, please approve our product speci?cations or transact the approval sheet for product speci?cations before ordering.
Basic Characteristics
! Basic Characteristics
1. Zero-power Resistance of Thermistor: R
R44E.pdf
Dec.17,2012
R=R 0 expB (1/T-1/T 0 ) .............. (1)
R: Resistance in ambient temperature T (K)
(K: absolute temperature)
Resistance vs. Temperature
10 2
R 0 : Resistance in ambient temperature T 0 (K)
B: B-Constant of Thermistor
10 1
2. B-Constant
as (1) formula
B= R n (R/R 0 ) / (1/T-1/T 0 )
............ (2)
1
3. Thermal Dissipation Constant
When electric power P (mW) is spent in ambient
temperature T 1 and thermistor temperature rises T 2 ,
there is a formula as follows
P=C (T 2 -T 1 ) .................. (3)
10 –1
10 –2
B=3450
B=3900
B=4100
C: Thermal dissipation constant (mW/°C)
Thermal dissipation constant is varied with dimensions,
–20
0
20 40 60 80 100 120
Temperature (°C)
measurement conditions, etc.
4. Thermal Time Constant
Period in which Thermistor's temperature will change
63.2% of its temperature difference from ambient
Thermal Time Constant
temperature T 0 (°C) to T 1 (°C).
T 1
X
63.2%
T 0
Time
! Performance
Resistance
Item
Condition
Measured by zero-power in specified ambient temperature.
Calculated between two specified ambient temperatures by next formula.
T and T 0 is absolute temperature (K).
B-Constant
B=
R n (R/R 0 )
1/T Y 1/T 0
Shows necessary electric power that Thermistor's temperature rises 1°C by self heating.
Thermal Dissipation
It is calculated by next formula (mW/°C).
Constant
C=
P
T Y T 0
Rated Electric Power
Permissive Operating Current
Shows the required electric power that causes Thermistor's temperature to rise to a specified temperature by self heating,
at ambient temperature of 25 °C.
It is possible to keep Thermistor's temperature rising max. 1°C.
Please inquire about test conditions and ratings.
6
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NCP15XM472J0SRC 功能描述:热敏电阻 - NTC 4.7K OHM 5% RoHS:否 制造商:EPCOS 电阻:10 kOhms 功率额定值:150 mW 容差:2 % 端接类型:Radial 系列:B57703M 工作温度范围:- 55 C to + 125 C
NCP15XM472K03RC 功能描述:热敏电阻 - NTC 4.7K OHM 10% RoHS:否 制造商:EPCOS 电阻:10 kOhms 功率额定值:150 mW 容差:2 % 端接类型:Radial 系列:B57703M 工作温度范围:- 55 C to + 125 C
NCP15XM472K0SRC 功能描述:热敏电阻 - NTC 4.7K OHM 10% RoHS:否 制造商:EPCOS 电阻:10 kOhms 功率额定值:150 mW 容差:2 % 端接类型:Radial 系列:B57703M 工作温度范围:- 55 C to + 125 C
NCP15XQ102E03RC 功能描述:热敏电阻 - NTC 1K OHM RoHS:否 制造商:EPCOS 电阻:10 kOhms 功率额定值:150 mW 容差:2 % 端接类型:Radial 系列:B57703M 工作温度范围:- 55 C to + 125 C
NCP15XQ102J03RC 功能描述:热敏电阻 - NTC 1K OHM 5% RoHS:否 制造商:EPCOS 电阻:10 kOhms 功率额定值:150 mW 容差:2 % 端接类型:Radial 系列:B57703M 工作温度范围:- 55 C to + 125 C