Digitran有著悠久而光榮的歷史，自1959年Digitran推出第一個(gè)編碼輸出指撥開(kāi)關(guān)生產(chǎn)線開(kāi)始，Digitran就以提供合適的高可靠性開(kāi)關(guān)產(chǎn)品在航天市場(chǎng)而聞名。Digitran的開(kāi)關(guān)普遍和流行的特點(diǎn)。美國(guó)軍隊(duì)為他們寫(xiě)了一個(gè)特別的規(guī)范MIL-S-22710， 在作戰(zhàn)平臺(tái)、通信系統(tǒng)和防御設(shè)備中指定使用他們的產(chǎn)品。因?yàn)镈igitran開(kāi)關(guān)具有高度可靠、重量輕、日照可靠性，用于NVIS照明和其他特殊的駕駛艙,他們低光應(yīng)用至今仍被利用在大多數(shù)美國(guó)和盟軍軍事平臺(tái)上。Digitran已經(jīng)生產(chǎn)有超過(guò)300萬(wàn)個(gè)開(kāi)關(guān),其中許多開(kāi)關(guān)每天都在飛行并已經(jīng)使用超過(guò)15年。Digitran開(kāi)關(guān)產(chǎn)品,如杠桿開(kāi)關(guān)、按鈕開(kāi)關(guān)、鍵盤(pán)和鍵盤(pán),并陸續(xù)的有新的設(shè)計(jì)來(lái)解決特定的客戶需求。Digitran持續(xù)在供應(yīng)合適的開(kāi)關(guān)產(chǎn)品在包括高可靠性應(yīng)用像工業(yè)、醫(yī)療和空間應(yīng)用的市場(chǎng)中。

Digitran 旋轉(zhuǎn)開(kāi)關(guān)有：56 Rotary switch, 57 VIP, 67VIP, 41 Rotary Potentiometer, 68 High Current Rotary switch系列；數(shù)字開(kāi)關(guān)有： Thumbwheel指輪開(kāi)關(guān), Lever Actuated杠桿驅(qū)動(dòng)開(kāi)關(guān), Push Button按鈕開(kāi)關(guān)等系列

旋轉(zhuǎn)開(kāi)關(guān)

56000 Series：Miniature Rotary Switches

The 56000 High Reliability Sealed Rotary Switch is a 0.625” diameter with ?’ diameter shaft.  This series is available

Meets or Exceeds MIL-DTL-3786  
125,000 Life Cycles Minimum  
36°, 45°Indexing
Multiple Pole Options
Multiple Output Code Options

Mechanical:
Post Panel Depth 0.80 Inches (single deck w/ pull feature)
Temperature Life: 1,000,000 detents minimum
–65° to +85°C  
Rotational Torque: 5-25 in-ounces
Stops: 15 in-pounds minimum

Electrical:
Non-switching (Cont) 6Amp @ 28VDC (20°C temp rise)
Switching Current DC 200ma @ 28VDC resistive
Switching Current DC 30 ma @ 28VDC inductive (2.8H)
Switching Current AC 150ma @115VAC resistive
Low Level   10ma @ 30 mv DC max
Contact Resistance 10 milliohms max initial
20 milliohms max after life
Insulation Resistance 50Kohm min @ 100VDC -initial
25Kohm min @ 100VDC -after life
Switching Life 50,000 cycles at rated loads
Breakdown Voltage 500 VRMS derating to 250 VRMS for
corresponding altitude

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