DESCRIPTION. This family of 2N and 2NA switching transistors are military qualified up to the JANS level for high-reliability applications. This family of 2N and 2NA switching transistors are military qualified up to the JANS level for high-reliability applications. These devices are also. 2N Transistor Datasheet pdf, 2N Equivalent. Parameters and Characteristics.

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The maximum junction temperature is shown in the black curve is just below the dash line, and may not be used during normal circuit operation.

2n2904 Equivalent Transistor Luxury 2n2904 Datasheet Pdf Microsemi Corporation

Then the base current is only 4. To obtain a higher operational operating temperature apply forced air cooling, the chart covers still air [ Fan Manufacturers ].

Books Support This Site: Series,andalso used in some others like the Sweet Forums New posts Search forums.

Bluewhiteredor green color Great for shining in from the meter edges from the side or from behind on the base station meters. Datasheets, Manuals or Parts.

Spring Clip for knob tips. The 2N has about 5mA of base current which should be a little more to get a little more collector current with the same saturation voltage loss. Jun Sun 26, Heads up- The Price of many China made items went up in price due to tariffs. Maybe only the first dozen or so are given on a typical spec sheet.

TO sounds much better than “Unibloc” – that sounds like a prison dahasheet to me. Here how I did. If you’re covering old transistors, then the hobby favorite, for years was the 2N Welcome to our site! First Prev 2 of 2 Go to page. Also be aware that this radio is very sensitive around static electricity and should be disconnected from the antenna when lightning storms are near by.


2N2904 Datasheet PDF

ddatasheet But as the OP and others note, there are a number of old types still produced more or less as first introduced, while other classics have succumbed to modern replacements and packaging trends, like replacing the TO Suraj Active Member Sep 8, Doesn’t dataaheet 2N has more saturation drop than 2N?

The line indicating thermal runaway runs out another 10 degrees before dropping, for the ‘A’ version parts, and terminates at degrees centigrade. I use 2N and 2N all the time. Those numbers are very popular.

Data Sheet Commonly used in many older linear amplifiers as keying transistors and RF pre-amp. As semiconductor fabrication improved, what counted as a high speed switch changed, and a lot of that functionality went into a multi-transistor IC.

Relay for the Texas Star Amplifiers: To completely characterize a bipolar 2n290 transistor you need more than 40 parameters. Thread starter Suraj Start date Aug 16, This is the larger clip in the dual control.

Yes, the PNP emitter-follower has a base-emitter voltage loss and the 74HC adds its output saturation voltage loss. Hope it will perform better than ULN Still have lots of them.

Data Sheet Commonly used in many many radios. Many characteristics of transistors depend on the manufacturing processes used, and those are subject to continuous change. The graph shown above covers both the 2N and the 2N In the heyday of transistor development there were new materials and processes being developed on a seemingly daily basis, to overcome short comings of previous designs, and those new devices deserved their own new shiny type number. Product Description Your Price.


Also great for RobynComstat and many other tube radios. Articles Top Articles Search resources. Jun Sat 25, In some circuits these things matter, in others any transistor that meets the minimum spec will work. Pioneer Elite vsxtx water damage no power Started by Watin 3 minutes ago Replies: Jun Mon 27, 1: It would be a mistake to assume that 2N or 2N transistors made today are exactly the same as those made 50 years ago.


S-meter plastic bracket goes around the meter in many, many older radios with S-meters. To participate you need to register. Per column 64mA peak will be fine.

Spring Clip for knob ring Galaxy Type Knobs. A house number might point to a particular supplier, process, or selection for some particular characteristic–or it may just be a generic part.

Use the Graph to determine how much to derate power [wattage] based on ambient operational temperature. You must log in or register to reply here. Operating under this curve using these mounting conditions assures the device will not have a thermal runaway.