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Metal Oxide Film Resistor

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Resistor 金屬氧化膜電阻器

PDF File  Data Spec Metal Oxide Film Resistor - MOR Series

Resistor INTRODUCTION
These Metal Oxide Resistors offer excellent performance in applications where stability and uniformity of
characteristics are desired. They provide lower cost alternatives to Carbon Composition Resistors and
General Purpose Metal Films.  Metal Oxide also can replace many low power General Purpose Wire wound
applications, saving both money and time, with shorter delivery cycles.
Resistor DIMENSION (mm) SINLOON®
Power: STYLE Dimension (mm)
L ΦD H Φd
1/4W MOR-25 6.0±0.2 2.3±0.3 28±2 0.5±0.02
1/2W MOR-50 9.5±0.5 3.2±0.5 26±2 0.6±0.02
1W MOR-100 11.0±0.5 4.5±0.5 35±2 0.7±0.02
2W MOR-200 15±0.5 5.0±0.5 32±2 0.8±0.02
3W MOR-300 17±0.5 6.0±0.5 32±2 0.8±0.02
5W MOR-500 25±1 8.0±0.5 35±3 0.8±0.02
Resistor RATED POWER
Type Power 70 Maximum Voltage Dielectric withstanding Max.intermittence Res. E96 T.C.R.
Working Overload Voltage (AC) Overload Voltage Range(Ω) ppm/
MOR-25 1/4W 250V 400V 300V 400V 1R ~510K ±350
MOR-50 1/2W 350V 700V 350V 700V 1R ~510K ±350
MOR-100 1W 350V 700V 350V 1000V 1R ~510K ±350
MOR-200 2W 350V 700V 500V 1000V 1R ~510K ±350
MOR-300 3W 500V 1000V 1000V 1000V 1R ~510K ±350
MOR-500 5W 500V 1000V 1000V 1000V 1R ~510K ±350
Operating temperature Range: -55 ~ 155
Resistor FEATURES
High power-to-size ratio for significant space savings.
Excellent long-term stability.
Complete flameproof construction.
High surge/overload capability.
Wide resistance range : 1Ω ~ 180K Ω.
Standard tolerance : ±5% ,± 2%

金屬氧化膜電阻 Metal Oxide Film Resistor

 

 
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Newsflash

感測電阻在電路中之應用

Current Sension Chip Resistor  按此還有更多 感測電阻在電路中之應用

在電流路徑中以串聯的方式插入一個低電阻值的感測電阻,將會形成一個較小的壓降,該壓降可被放大而成為一個與電流成正比的輸出訊號。然而,根據實際應用環境與感測電阻的位置,這一技術可能對感測放大器帶來各種挑戰。例如,將感測電阻放在負載與電路接地之間,那麼所形成的壓降可採用簡單的運算放大器(OP)進行放大。這種方法被稱為低側電流感測,與其相對應的方法為高側感測,即感測電阻位於供電電源和負載之間。 

Figure Circuit CS

電流的感測一般採用兩種基本方案。一種是測量電流流過的導體周圍磁場,另一種是在電流路徑中插入一個小型電阻,然後測量電阻上的壓降。第一種方法並不會引起干擾或插入損耗,但成本相對較為昂貴,而且容易產生非線性效應與溫度係數誤差。因此磁場感測技術通常只局限於一些能夠承擔無插入損耗的高成本應用。