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保險絲電阻 (UL)

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Resistor 繞線保險絲電阻

PDF File  Data Spec Wire Wound Fusible Resistor - FR Series

Resistor FEATURES SINLOON®
The Fusible resistor is applited to safety circuit in wide range of electronic sets.
Complete flame proof construction resistance range 0.33R ~ 1K ohm
Resistance tolerance  ±2%, ±5%.
There are 5 color band is in wgite color means wire wound fusible resistor
The fusing time 60/sec Max.
Resistor EXTERNAL DIMENSIONS
Type Power DIMENSION (mm)
L ΦD H Φd
FR025 1/4W 6.3±0.5 2.3±0.3 28±2 0.55±0.03
FR50S 1/2WS 6.3±0.5 2.3±0.3 28±2 0.55±0.03
FR50 1/2W 9.0±0.5 3.2±0.5 28±2 0.65±0.03
FR100S 1WS 9.0±0.5 3.2±0.5 28±2 0.65±0.03
FR100 1W 11.5±1.0 4.5±0.5 35±2 0.78±0.03
FR200S 2WS 11.5±1.0 4.5±0.5 35±2 0.78±0.03
FR200 2W 15.5±1.0 5.0±0.5 35±2 0.78±0.03
FR300S 3WS 15.5±1.0 5.0±0.5 35±2 0.78±0.03
Fuse Resistor (溶斷保險絲電阻)
Data Sheet  Fusible Resistor - FR Series
Resistor RATED POWER
Type Power Limiting Element Resistance Resistance Operating
Voltage Range Tolerance temperature Range
FR025 1/4W 200V 1R~1KΩ G=±2% J=±5% -40~ +155
FR50S 1/2WS 250V 1R~1KΩ
FR50 1/2W 250V 1R~1KΩ
FR100S 1WS 300V 1R~1KΩ
FR100 1W 300V 1R~1KΩ
FR200S 2WS 350V 1R~1KΩ
FR200 2W 350V 1R~1KΩ
FR300S 3WS 400V 1R~1KΩ
Remark: The products value range for standard resistance, below or over this resistance on request please contat us.
: 如有低於或高於規格參數阻值的要求請聯絡我們
Resistor INTRODUCTION
FR Type (Standard)
Rated power : 1/4W ~ 2W; 1/2WS ~ 3WS.
Superior quality fusible resistors which are flameproof during operation These resistors fuse
in less than 30 seconds at 16 times rated power

保險絲電阻 Fusible Resistor

最近更新在 週六, 21 十一月 2015 03:13  
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Newsflash

LED 驅動電路

LED 驅動電路

 

LED 驅動電路

在電子學領域裡,LED驅動電路(LED circuit,又譯發光二極管電路),為發光二極管燈具的核心器件,是一個用來使發光二極管(LED)發亮的電路。

隨着全球倡導綠色照明以及節能的迫切需求。越來越多的照明產品進入到發光二極管光源的時代。而作為發光二極管燈具的核心器件,LED驅動芯片扮演着越來越重要的角色。

推動LED時,其最終目的都是要控制流經LED的電流以達到或貼近原有設計要求的數值,並使其穩定而不受或減少被電源電壓、溫度、順向偏壓差異等因素影響,從而得到所需光度、防止LED壽命減短或被損壞。

LED工作於直流電,其順向偏壓與電流成指數關係,因此極細小的電壓變化也會使其電流、光度有很大變化,嚴重的更會因為功耗過高而永久損壞。

成指數關係的LED順向偏壓與電流曲線,輕微的順向偏壓(ΔV)會導致非常大的電流變化(ΔI

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