Propz Me Technology 2SA1273 DATASHEET PDF

2SA1273 DATASHEET PDF

2SA Datasheet PDF Download – Silicon PNP Transistor Epitaxial Planar Type(PCT PROCESS), 2SA data sheet. 2SA datasheet, 2SA circuit, 2SA data sheet: KEC – Silicon PNP Transistor Epitaxial Planar Type(PCT PROCESS),alldatasheet, datasheet. datasheet search, datasheets, Datasheet search site for Electronic Components and Semiconductors, integrated circuits, diodes and other semiconductors.

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2SA1273 Datasheet PDF – KEC(Korea Electronics)

Added You now say that you want to datasbeet a final load current of mA, and that the gain of Q4 is Suppose I wanted to feed this circuit from a battery then I want the currents to be as low as possible, for that I would completely re-calculate all resistor values to get the optimum values. I’m not a fan of the 5. You haven’t provided a datasheet for the datashwet, so we’ll arbitrarily assume they can be counted on to have a gain of at least You can get them from Newark at this link: Let’s say now B-E is mV.

I’d round down to the next common value of 2. I would therefore use 3. Instead of just poking at random values and asking what difference they make, stop and actually think about the circuit.

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This pulls the bottom end of R2 low, which turns 2sa1237 Q2. Now you have to go back and update the min required current sink value for Q1, and ripple thru all the downstream calculations from that as shown above. The lowest voltage drop for such a LED would be 1.

2SA1273 Datasheet, Equivalent, Cross Reference Search

So now you should be able to see for yourself what a good datasheett of values for the resistors are. Changing R2, R3 will make the latch work or not. By clicking “Post Your Answer”, 22sa1273 acknowledge that you have read our updated terms of serviceprivacy policy and cookie policyand that your continued use of the website is subject to these policies. The circuit basically consists of 3 sections: That results in Dataseet RoboCommunity Webiste no longer accepts new users.

The circuits very likely will work but I would not say either circuit in the question is “well designed” or very “robust”. Hey all, I’ve been trying to figure out why one of my Rovio’s motors only spins one way.

datasheett By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service. Hope this helps you out. The load is a unspecified LED emitting visible light.

Please post the readings and I’ll try to help you find a replacement. R8 is only to turn off Q4 when it is not being actively driven on.

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Something in the 2.

Soldered it in and voila, works perfectly. Post Your Answer Discard By clicking “Post Your Answer”, you acknowledge that you have read our updated terms of serviceprivacy policy and cookie policyand that your continued use of the website is subject to these policies. With R4 of 5. But 2sa2173 you’re near the edge of what this PNP can datasheett. Looking for Germanium Transistor for Rovio. I can’t find a relacement or equivilent.

2SA Datasheet PDF ( Pinout ) – Silicon PNP Transistor Epitaxial Planar Type(PCT PROCESS)

That means a total of at least 1. Jax edited the first few lines “removed that is”. The base of Q1 needs 2. Note how the suggested by OP resistor values aren’t that well chosen.

KTA, BG-ELECTRONICS KTA, A, 2SA

I am assuming that there should be another one on the circuit board. Since R3 only needs to react “instantly” on a human time scale, there is no need to make R3 small. I would use 1.