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Carbon Resistor Flame-proof

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按圖放大 Resistor 不燃性碳膜電阻器

PDF File  Data Spec Flame-proof Type Carbon Resistor - FCR Series

Resistor FEATURES SINLOON®
Lower cost and prompt deliver.
High power-to size ratio for significant space savings.
Complete flameproof construction-UL
Excellent long-term stability.
Wide resistance range : 1Ω ~ 10MΩ
Standard tolerance : ±5%
Resistor INTRODUCTION
The FCR series flame-proof Carbon Film Resistors are manufactured by Coating a homogeneous film of pure carbon on
high grade ceramic rods, resistance less than 10 have an electro less deposited nickel film, and are coated with layers
of gray color flame-proof lacquer. These resistors meet overload tests in accordance with UL specification  without
producing a fire hazard.
DIMENSIONS:
STYLE DIMENSION (mm)
L ΦD H Φd
FCR-25 6.3±0.5 2.3±0.3 28±2 0.6±0.05
FCR-50 9.0±0.5 3.2±0.3 26±2 0.6±0.05
FCR-100 11.5±1.0 3.2±0.5 35±2 0.8±0.05
FCR-200 15.5±1.0 4.5±0.5 32±2 0.8±0.05
FCR-300 17.5±1.0 6.5±0.5 35±2 0.8±0.05
ELECTRICAL CHARACTERISTICS:
Style FCR-25 FCR-50 FCR-100 FCR-200 FCR-300
Power Rating 70oC 1/4W 1/2W 1W 2W 3W
Operating Temp. Range -55oC ~ +155oC
Max. Working Voltage 250V 350V 500V 500V 600V
Max. Overload Voltage 500V 700V 1000V 1000V 1000V
Dielectric Withstanding Voltage (AC) 500V 700V 1500V 1500V 1500V
Max. Intermittence Overload Voltage 750V 1000V 1500V 2000V 2000V
T.C.R. (ppm/) FCR-25 /FCR-50 FCR-100 /FCR-200 /FCR-300
100KΩ down 100K~1MΩ 1MΩ up 100KΩ down 100K~1MΩ 1MΩ up
-0.7 -0.5 -0.35 +350PPM -0.7 -0.35
The listed resistance range for standard resistance, below or over this resistance is on request.
 
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封閉實際光輸出的控制回路

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封閉實際光輸出的控制回路

半導體照明這一新興領域的出現,使同時專長於電力電子學、光學和熱管理學(機械工程)這三個領域的工程師成為搶手人才。目前,在三個領域都富有經驗的工程師並不很多,而這通常意味著系統工程師或者整體產品工程師的背景要和這三大領域相關,同時他們還需盡可能與其他領域的工程師協作。系統工程師常常會把自己原領域養成的習慣或積累的經驗帶入設計工作中,這和一個主要研究數位系統的電子工程師轉去解決電源管理問題時所遇到的情況相同:他們可能依靠單純的模擬,不在試驗檯上對電源做測試就直接在電路板上佈線,因為他們沒有認識到:開關穩壓器需要仔細檢查電路板佈局;另外,如果沒有經過試驗台測試,實際的工作情況很難與模擬一致。

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