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TO-18
In electronics, TO-18 is a designation for a style of transistor metal case. The case is more expensive than the similarly sized plastic TO-92 package. The name is from JEDEC, signifying ''Transistor Outline Package, Case Style 18''. ==Construction and orientation== The tab is located 45° from pin 1, which is typically the emitter. The lead diameter is nominally 0.45 mm, the diameter of the cap is 4.5-4.95mm (0.178-0.195 inches) and the overall width (not including the tab) is 5.4 mm. Different manufacturers have different tolerances, and the actual form factor may vary slightly, depending on function.
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「TO-18」の詳細全文を読む
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