tranistor

Hi, I am looking for a transistor that I can use as a switch at a minimum frequency of 10 MHz. So far, I haven’t been able to find a suitable component, and I would really appreciate your assistance or recommendations. My circuit is intended to look like this: Thank you very much for your help.

Hello everyone! I'm trying to understand how the Colpitts oscillator works. Could someone explain the roles of the capacitors labeled C and C3 in the circuit? What are they used for? Thanks in advance!

I need help. It's not working—some of the transistors are getting kinda hot. I think the LEDs might be wired the wrong way, but I don’t think that’s the issue. However, it could be. It’s a 12V–24V setup. I attempted to make brakes—that’s what the third transistor group does. I think everything...

I am making a traffic light circuit for an outreach event however I have little components. I have a working circuit using BJTs (shown below) on LTSpice however I only have signal mosfets (2N7000). I have also included the output of the BJT circuit. I am trying to adapt the circuit to work with...

I have Honda heated grips on my motorcycle. The heating function works, but the LED does not light up when the heating is turned on. I have conducted some measurements myself and connected the controller to a lab power supply, but I cannot simulate the setup. Also, I cannot measure/find some...

Hello, I have a npn transitor configured as a switch 0v to 5v gpio pin with base resitor 2k and a 50k pull down resitor in a volatge divider configuration. I wanted to know if this pull down resitor will be okay with Ic current about 20-30ma or I need to decrease it more as the rule of thumb 10x...

Hello all, I have read some articles on how to test a transistor with DMM diode mode and what I understand is that measuring from Base (red probe) to Collector\Emitter (black probe) should give a reading and all other probings (C-to-E, E-to-C, C-to-B, E-to-B) should give O.L. But that isn't...

I recently bought KSP 2N2222a npn transistors. The picture that I attach below shows the layout. The base of the transistor is applied a 1.5V which turns on the transistors and light up the bulb very brightly. However, I got a bulb that is so dim. The battery power and voltage is fine because I...

First of all, thank you for your kind help. The Rpm and gear selector of my guage cluster from the car decided to stop working. It's a digital cluster for gx81 Mark 2 (image for reference attached below). Upon initial diagnosis I found that one of the power transistor 2SC2334L had blown with a...

Hello, I am currently trying to build a beefed up Slayer Exciter Circuit but I ran into a problem. The Transistor I wanted to use isn't easily availeble anymore and now I need a new one for the circuit. The old one was called "25K242". The new transistor should be a N-channel Mosfet with a...

Hi guys, I designed a simple circuit here to use an Arduino Pro mini controlling a heater rod for my personal project. My heater rod is rated at 24V, 25W. I'm controlling the heater rod using a BJT transistor, FMMT617TA which is some leftover parts from my previous project. After I got my...

I am a digital designer so anything analog is out of my expertise. I need to control an optical 2x2 switch with the following truth table: The pulse is in the msec range and the driver current is about 200mA. I have an FPGA that can control the transistors but not sure how to arrange them...

What is the difference between SS8550, S8550 and 8550 BJT transistor? Are they equivalent or not and what does S denote?