2N3906 RELAY DRIVER

Did you arrange it like that? May 14, The term of this agreement is perpetual unless terminated by ON Semiconductor as set forth herein. Request for this document already exists and is waiting for approval. We must also insure that the maximum power dissipation of the transistor is not exceeded. In this article, we will review the basic principles for transistor switches using common bipolar transistors. For a better experience, please enable JavaScript in your browser before proceeding.

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2N3906: Small Signal PNP Bipolar Transistor, TO-92

You almost certainly are not saturating the transistor, even if you haven’t damaged the GPIO. Licensee agrees that it shall not issue any press releases containing, nor advertise, reference, reproduce, use or display, ON Semiconductor’s name or any ON Semiconductor trademark without ON Semiconductor’s express prior written rrlay in each instance; provided, however, that Licensee may indicate that the Licensee Product is interoperable relaay ON Semiconductor Products in product documentation and collateral material for the Licensee Product.

Show us the circuit you are using.

The only issue I see is with adapter power which i think shouldn’t be. For this circuit we will calculate R2 to be 10 times R1 as follows: You must log in or register to reply here. If the transistor gets hot try the ohm one, but 2n39006 have a limited maximum amount of current for the whole chip, and all those ma’s add up fast. Sign up using Email and Password. Resistor R2 is not essential telay this circuit but is generally used for stability and to insure that the transistor switch is completely turned off.

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Request for this document already re,ay and is waiting for approval. Ideally you want a resistor that will be JUST low enough to put the transistor into saturation for the coil load, if you tell us what transistor you’re going to use what the relays primary coil resistance is we could give you a more specific resistor value to use. Media New media New comments Search media. All that is needed is to know the minimum HFE and 2nn3906 power dissipation of the transistor.

Transistor 2m3906 are used for a wide variety of applications. Yes, my password is: I can see the programming logic all working fine with putty. We can calculate 23n906 power dissipation by multiplying the current by. Use NPN transistor like 2N All reports, documents, materials and other information collected or prepared during an audit shall be deemed to be the confidential information of Licensee “Licensee Confidential Information”and ON Semiconductor shall protect the confidentiality of all Licensee Confidential Information; provided that, such Licensee Confidential Information shall not erlay disclosed to any third parties with the sole exception of the independent third party auditor approved by Licensee in writing, and its permitted use shall be restricted to the purposes of the audit rights described in this Section Connect it like in this schematic.

This is to prevent the kickback voltage in the reverse polarity from destroying the transistor. Licensee agrees that the delivery of any Software does not constitute a sale and the Software is only licensed.

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gpio – Cannot switch 5v relay with adapter power supply – Raspberry Pi Stack Exchange

The most commonly used transistor switch is the PNP variety shown in Figure 1. In this article, we will review the basic principles for transistor switches using common bipolar transistors. If this is the case, you will need a level shifter. Click here to register now. Do you relat have an account?

The maximum design current must not be exceeded or the output voltage will be reduced. May 14, 5 0. Now i have edited the post. May 14, 5. These circuits are low in cost and offer ease of design for the radio amateur.

Driving a relay with two Arduino – Page 2

The secret to making a transistor switch work properly is to get the transistor in a saturation state. So, I want to know if there is anyone out there facing such problem, if yes or if I am doing anything wrong please suggest the solution.

While transistors have many uses, one of the less known uses by amateurs is the ability for bipolar transistors to turn things 2n390 and off. Previously Viewed Products Select Product