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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Still have lots of them.

Datasheet «2N2904»

One strip will do both meters in a base and light them up bright. Relay for the Texas Star Amplifiers: 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. Datasheets, Manuals or Parts.

Use the Graph to determine how much to derate power [wattage] based on ambient operational temperature. Jun Mon 27, 1: I remember when 2N, 5 germanium were popular. I paid that princely sum in for the little blue wonder.

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. I got some improvement in LED brightness. Dec Mon 31, 8: Amber color Great for shining in from the meter edges from the side or from behind on the base station meters. Bluewhiteredor green color Great for shining in from the meter edges from datasheeg side or from behind on the base station meters.


2N Datasheet PDF – Motorola

B Vs B Transistors. Previous topic Next topic. Articles Top Articles Search resources. Google [Bot] and 4 guests. This Large Clamp-on ferrite choke is a passive component used to suppress HF energy as a choke. Originally, it was designed as a “high speed switch”.

Replacing a 4 pin leaded inductor 2nn2904 a 2 pin Started by gkmaia Yesterday at Operating under this curve using these mounting conditions assures the device will not have a thermal runaway. The 2N or BC will be a little better. Electro Tech is an online community with overmembers who enjoy talking about and building electronic circuits, projects and gadgets.

The Top curve is thermal runaway and cannot be used as a derate design curve since it exceeds the maximum ratings for the 2N Per column 64mA peak will be fine. Then the base current is only 4.

This is the true inverse of the worst case thermal resistance value extrapolated out to the thermal datasheeet point. This is the largest clip used for the channel selector knobs. Jun Sun 26, 1: Data Sheet Commonly used in many older linear amplifiers as keying transistors and RF pre-amp. Use it to filter many many types of things. This is the larger clip in the dual control. Yes, the PNP emitter-follower has a base-emitter voltage loss and the 74HC adds datashet output saturation voltage loss.

I think I could lower down the value of the resistor further!!! Transistor Derating Curves Temperature derating is a standard design practice for electrical dafasheet.

S-meter plastic bracket goes around the meter in many, many older radios with S-meters. Page 1 of 1. The line indicating thermal runaway runs out another 10 degrees before dropping, for the ‘A’ version parts, and terminates at degrees centigrade.


The graph shown above covers both the 2N and the 2N Make sure you readjust the bias levels to minimum 2n29044 for linear output. In the heyday of transistor development there were new materials and processes being datasheeg on a seemingly daily basis, to overcome short comings of previous designs, and those new devices deserved their own new shiny type number.

Is that 2N is a good choice? The rest of those characteristics are buried in the 50, or so different transistor types that have been created over the years.

The datasheet of the 2N NPN transistor shows a max allowed current of mA and poor performance above about 50mA. How much will 2n2940 its maximum current? I use 2N and 2N all the time.

2N Datasheet(PDF) – Seme LAB

You must log in or register to reply here. A little solder on the pinsotherwise like new. Series,andalso used in some others like the Sweet This is why manufacturers like Tektronix, HP, Heathkit, and many others used different house numbers to designate common transistors like these.

If you’re covering old transistors, then the hobby favorite, for years was the 2N Jun Sat 25, Suraj Active Member Sep 9, Hope it will perform better than ULN