參數(shù)資料
型號(hào)： 204GT-1
廠商： Electronic Theatre Controls, Inc.
英文描述： THERMOPILE TYPE INFRARED SENSOR
中文描述： 熱電型紅外傳感器
文件頁(yè)數(shù)： 6/44頁(yè)
文件大?。?/td> 669K
代理商： 204GT-1
6
2.1
2.2
2.3
2.4
2.5
2.6
2.7
2.8
2.9
3.0
3.1
3.2
3.3
3.4
3.5
3.6
3.7
3.8
3.9
B3350
B3400
B3650
1k
10k
100k
R
Temperature(1/ Tx10
3
)
THERMISTOR
"Thermistor" is the generic name given to
thermally sensitive resistors.
Negative temperature coefficient thermistor
is generally called as thermistor. Thermistor
is a semiconducting ceramic resistor
produced by sintering the materials at high
temperature and made mainly from metal
oxide.
Depending on the manufacturing method
and the structure, there are many shapes
and characteristics for various purposes
such as temperature measurement,
temperature compensation and etc.
The thermistor resistance values, unless
otherwise specified, are classified at a
standard temperature of 25 C.
B constant is calculated from the resistance
values at 25 C and 85 C.
The resistance of a temperature is solely a function
of its absolute temperature. Since electrical power
being dissipated within a temperature might heat
above its ambient temperature and thereby reduce
its resistance, it is necessary to test for resistance
with temperature. The resistance so measured is
called RT, which means the resistance at essentially
zero-power.
The mathematical expression which relates the
resistance and the absolute temperature of
a thermistor is as follows:
R
a
R
b
exp
B 1
T
1
1
T
2
B
T
2
R
a
R
b
B is a constant which depends on the
material of the thermistor
T
1
T
2
Where:
is the resistance at absolute temperature
is the resistance at absolute temperature
Unless otherwise specified,all values of B are
determined from measurements made at 25 C and
85 C.
The temperature coefficient of resistance
is expressed in the following equation:
100(%/
C)
Resistance -Temperature Characteristics
Dissipation factor
Dissipation factor ( ) is power in milliwatts
required to raise thermistor temperature 1 C.
Measured with thermistor suspended by its leads in
a specified environment.
Thermal time constant
Thermal time constant (
a
) is the time required by a
thermistor to change 63% of the difference between
its initial and final temperature.Measured with
thermistor suspended by its leads in specified
environment.
t:Raise temperature( C)
t
P :Power(mW)
95
87
63
a
2
a
3
a
5
a
Time (s)
(
相關(guān)PDF資料
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
204GT-2 功能描述:熱敏電阻 - NTC 200kohm 3% RoHS:否 制造商:EPCOS 電阻:10 kOhms 功率額定值:150 mW 容差:2 % 端接類型:Radial 系列:B57703M 工作溫度范圍:- 55 C to + 125 C
204GT-A-L 制造商:Everlight Electronics Co 功能描述:
204HBSP 制造商:Marathon Special Products 功能描述:
204HC3102K2EM8 功能描述:0.2μF Film Capacitor 1000V (1kV) Polypropylene (PP) Nonstandard 2.205" L x 1.189" W (56.00mm x 30.20mm) 制造商:illinois capacitor 系列:HC3 包裝:散裝 零件狀態(tài):新產(chǎn)品 電容:0.2μF 容差:±10% 額定電壓 - AC:1000V（1kV） 額定電壓 - DC:- 介電材料:聚丙烯（PP） ESR（等效串聯(lián)電阻）:1.2 毫歐 工作溫度:-40°C ~ 85°C 安裝類型:底座安裝 封裝/外殼:非標(biāo)準(zhǔn) 大小/尺寸:2.205" 長(zhǎng) x 1.189" 寬（56.00mm x 30.20mm） 高度 - 安裝（最大值）:2.618"（66.50mm） 端接:有螺紋 引線間距:- 應(yīng)用:傳導(dǎo)冷卻，高脈沖，DV/DT 特性:- 標(biāo)準(zhǔn)包裝:5
204HC3102K4TM6 功能描述:0.2μF Film Capacitor 1000V (1kV) Polypropylene (PP) Nonstandard 2.362" L x 2.362" W (60.00mm x 60.00mm) 制造商:illinois capacitor 系列:HC3 包裝:散裝 零件狀態(tài):新產(chǎn)品 電容:0.2μF 容差:±10% 額定電壓 - AC:1000V（1kV） 額定電壓 - DC:- 介電材料:聚丙烯（PP） ESR（等效串聯(lián)電阻）:1.2 毫歐 工作溫度:-40°C ~ 85°C 安裝類型:底座安裝 封裝/外殼:非標(biāo)準(zhǔn) 大小/尺寸:2.362" 長(zhǎng) x 2.362" 寬（60.00mm x 60.00mm） 高度 - 安裝（最大值）:1.189"（30.20mm） 端接:有螺紋 引線間距:- 應(yīng)用:傳導(dǎo)冷卻，高脈沖，DV/DT 特性:- 標(biāo)準(zhǔn)包裝:5
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