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TO220 Power Resistor - MF Series

TO220 Power Resistor TO220 功率電阻 - MF Series

PDF File TO220 Power Resistor - MF Series

MF18 (18W) Resistance : 0.05R ~ 1M Tolerance: ±1%, ±5%.

MF20 (20W) Resistance : 0.05R ~ 1M Tolerance: ±1%,± 5%.

MF30 (30W) Resistance : 0.5R ~ 1M Tolerance:± 1%, ±5%.

MF50 (50W) Resistance : 0.2R ~ 1M Tolerance: ±1%, ±5%.

特點:

TO-220 MF 系列 封裝, 不使用金屬法藍底板,而是直接進行模壓包封,使得陶瓷基板的有效面積(及相應電阻模層的有效面積)增大,從而使得電阻具有較強的脈衝電負荷性能。MF 系列採取了陶瓷基片直接裸露的結構,並配合使用專用L型錳鋼散熱片,改善其散熱性能,當在電阻本體溫度升高時能保持它有較佳的額定功率及有極佳的脈衝電負荷性能。

TO-220 MF 系列 封裝, 使用M3螺絲安裝,配合專用彈簧片,克服模壓電阻本體機械強度不够的弱點,使固定螺絲壓力直接作用於電阻本體的中心,增強了電阻的熱傳導性。無電感制成。

Features:

Non- inductive.

Available in 18W,20W, 30W,or 50W

TO-220 Style Power Package

Single Screw Mounting to Heat Sink.

High stability film resistance elements

Molded Case for Protection and Easy to Mount.

50 Watt at 25°C Case Temperature Heat Sink Mounted

Mayloon Products Power Resistor ML series resistors satisfy demanding applications for accurate and stable power resistors housed in the convenient TO-220 case. The resistance element is Isolated from the mounting tab by an alumina ceramic layer, providing very low ther- mal resistance and ensuring high insulation resistance between terminals and tab.

The non-inductive design makes these products especially useful in high frequency and high speed pulse applications.

TO220 Power Resistor MF/ML Series

5.ML25 (25W) Resistance: 0.01R ~ 51K Tolerance: ±1%, ±5%.

6.ML35 (35W) Resistance: 0.01R ~ 51K Tolerance: ±1%, ±5%.

7.ML50 (50W) Resistance: 0.01R ~ 51K Tolerance: ±1%, ±5%.

8.TO247 ML100(100W) Resistance: 0.1R ~ 51K Tolerance: ±1%, 5±%.

Applications (應用)

UPS (不斷電供電系統)

Snubbers circuits. (緩衝電路)

Voltage Regulation. (電壓調變器)

Low Energy Pulse Loading. (脈衝電路)

Gate Resistors in Power Supplies. (穏壓電源)

Terminal Resistance in RF Power Amplifiers. (射頻功率放大器)

Load and Dumping Resistors in CRT Monitors. (示波器)

Other requirement not specified in the specification sent by e-mail inquiries welcome.

Mayloon characteristic parameters of electronic product specification changes of updates without prior notice.

 

 

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to-220 功率電阻

 

 
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微波波源

微波波源

 

微波波源

微波(來自英文:「Microwave」)是指波長介於紅外線和特高頻(UHF)之間的射頻電磁波。微波的波長範圍大約在 1m 1mm 之間,所對應的頻率範圍是 0,3 GHz 300 GHz

微波在雷達科技,ADS射線武器,微波爐,等離子發生器,無線網絡系統(如手機網絡,藍牙,衛星電視及WLAN技術等),傳感器系統上均有廣泛的應用。

在技術領域協定使用的四個頻率分別為800MHz,2.45GHz,5.8GHz13GHz。微波爐使用2.45GHz,此頻率亦被作為ISM波段,使用在航空通訊領域

微波爐的運作原理是通過用微波(頻率常常為2.45 GHz)對食物照射,食物分子可分為有極分子和無極分子,在外電場作用下,使原來雜亂無章分佈的有極分子沿外電場方向轉向,產生轉向極化;無極分子沿外電場方向產生位移極化。改革外電場方向時,分子轉向極化或位移極化方向隨之改變。微波爐工作時,置於爐內的食物,在微波(即高頻交變電磁場)的作用下,食物分子每秒來回極化(即擺動)二十四億多次,這時分子間的碰撞、摩擦將電磁能量轉化為熱量,這樣就可以使食物在極短的時間內,內部和外表溫度同時升高,達到快速加熱而不破壞食物中所含的對人體有益的各種維生素及營養成份,且色澤鮮艷、味道可口,不會有夾生現象。

微波雷達感應開關