Pnp transistors on semiconductor pnp online catalog. Pnp highside transistor switching with microcontroller. The first highfrequency transistor was the surfacebarrier germanium transistor developed by philco in 1953, capable of operating up to 60 mhz. There is a temptation to think that we could do the same trick with an pnp transistor as shown in figure 1b. Pnp switching transistor 2n4036 features high current max.
These packages are designed for use in highpower amplifier and switching circuit applications. Features and benefits 300 mw total power dissipation very small 1. Mbt35200mt1 high current surface mount pnp silicon. Ic chips are usually not capable to provide enough power for such loads in terms of both voltage and current. The information contained herein is subject to change without notice. Pnp switching transistor ph2907a thermal characteristics note 1.
It is used in switching and amplifier applications. A bipolar junction transistor bipolar transistor or bjt is a type of transistor that uses both electrons and holes as charge carriers. Applications industrial and consumer switching applications. Bipolar junction transistors bjt general configuration and definitions the transistor is the main building block element of electronics. The test circuits for datasheet quoted storage and turnoff times drive the base hard in reverse. It is intended for a wide variety of medium power switching and linear applications.
Internal schematic diagram december 2003 1 2 3 to220. Pnp switching transistor bsr12 features low current max. A bipolar transistor allows a small current injected at one of. It can be used for the various application like switching circuits, amplifying circuits, and manufacturing of the logic gates etc. The working of pnp transistor switching circuit is same like npn transistor switching circuit expect that current flows from the base. Part 7 covered using transistors to switch loads that require higher currents or voltages than the microcontroller can handle. The chip has a low output signal for the active output.
Applications highspeed, saturated switching applications for. Smd transistor rectifier switching schottky diode assortment. Pn2907 datasheet18 pages philips pnp switching transistor. Check out the datasheet, see if you recognize any familiar characteristics.
I am trying to use a 2n3906 pnp transistor to switch the 24 volt pneumatic valve solenoid on and off. Mps3906 datasheet, equivalent, cross reference search. Switch mode power supply complementary mosfet driver. The 2n3055 is a silicon npn power transistor intended for general purpose applications.
The 2n2222 is a common npn bipolar junction transistor bjt used for general purpose lowpower amplifying or switching applications. This section covers the use of pnp transistors to perform high side switching with a microcontroller. To turn the pnp transistor operating as a switch on, the base terminal is connected to ground or zero volts low as shown. Still, for switching loads which draw up to a few hundred milliamps, this circuit using just a pnp transistor and a resistor is really quite practical. Silicon pnp switching transistors stmicroelectronics. Pinning pin description 1 collector 2 base 3 emitter fig. This means that most of the charge carriers in a pnp are holes. Pmst3906 datasheet, equivalent, cross reference search. Bipolar transistors consist of two semiconductor junctions thus the bipolar that serve a broad number of electronic uses from audio amplifiers to digital circuits. Mbt35200mt1 high current surface mount pnp silicon switching transistor for load management in portable applications features aec. Oxford university press usa publishes scholarly works in all academic disciplines, bibles.
Pnp transistor works same as npn for a switching operation, but the current flows from the base. Pnp power transistor tip42c disclaimer this data sheet and its contents the information belong to the premier farnell group the group or are licensed to it. This is the most typical application of transistors in digital designs. Transistor mounted on an fr4 printedcircuit board, singlesided copper, tinplated, standard footprint. Pmst3906 40 v, 200 ma pnp switching transistor rev. Pnp transistor circuit characteristics, working, applications. If the transistor is a pnp, then the arrow points to the base of the transistor, otherwise it points to the output. Pinning marking pin description 1 base 2 emitter 3 collector type. A dc load switching transistor is used to control the power of a load such as a solenoid, a motor, a lamp etc. In this tutorial, we will try to understand the basics of pnp tansistor. This type of switching is used for negative ground configurations. It is a semiconductor device and it comes in two general types. I have a common ground for the stamp, demultiplexer, and pneumatic valve. The low side switch is very simple as shown in figure 1a.
Bc847bvn npnpnp general purpose transistor 20 may 2019 product data sheet 1. Description pnp switching transistor in a sot23 plastic package. We can also use the pnp transistors as a switch, the difference this time is that the load is connected to ground 0v and the pnp transistor switches the power to it. Buy smd transistor rectifier switching schottky diode assortment book kit 36 values each 50pc, total 1800pcs by transistor kit. The structure of the pnp transistor is completely different from the npn transistor. Power bipolar transistors databook, 1208 pages, 1988, sgsthomson.
For other mounting conditions, see thermal considerations for sot89 in the general part of associated handbook. A typical 12v pcb relay requires about 20ma of current for its solenoid. Discrete semiconductors data sheet book, halfpage m3d186 mps3906 pnp switching transistor 1999 apr 12 product specification supersedes data of 1997 may 23 philips semiconductors product specification pnp switching transistor mps3906 features pinning low current max. In cutoff region, the transistor operate as an open switch. For the pnp transistor, the base terminal is always negatively biased with respect to the emitter. Description 1 handbook, halfpage pnp switching transistor in a to92. The most important application of pnp transistor is high side switching and class b combined amplifier. No licence is granted for the use of it other than for information purposes. Description pnp switching transistor in a to39 metal package.
An unbiased transistor or a transistor without potential applied at the terminals is similar to two diodes connected backtoback as shown in figure below. The problem is that the emitterbase junction is always forward biased. The test circuits for datasheetquoted storage and turnoff times drive the base hard in reverse. You can always remember that the arrow points at the n material. Icib500ma25ma lapplication low frequency amplifier, high speed switching. The lowvoltage logic just has to feed sufficient current into the npn transistor to turn it fully on. Free packages are available maximum ratings rating symbol value unit collector. Device mounted on a printedcircuit board, singlesided copper, tinplated, mounting pad for collector 6 cm2. In pnp transistor circuit, the base is always negatively biased with respect to the emitter and this type of switching is used for negative ground configuration.
Working of transistor as a switch npn and pnp transistors. Discrete semiconductors data sheet book, halfpage m3d186 2n4403 pnp switching transistor, may 05 philips semiconductors product specification pnp switching transistor 2n4403, applications. Im using 4 outputs from a basic stamp to control 14 outputs turning onoff 24 volt pneumatic valve portsthrough a 74ls154 demultiplexer chip. Collector to emitter voltage v ce is approximately equal to zero ideally. Here we will describe the system characteristics of the bjt. These were made by etching depressions into an ntype germanium base from both sides with jets of indiumiii sulfate. Linear and switching industrial equipment description the 2n6111 is an epitaxialbase pnp silicon transistor in jedec to220 plastic package.
Npn switching transistor 2n4401 features high current max. Unipolar transistors, such as fieldeffect transistors, use only one kind of charge carrier. This will present a broad introduction of pnp and npn switching transistors oriented towards common 5volt microcontrollers. Pnp transistor is another type of bipolar junction transistor bjt. The symbol of the transistor has an arrow on the emitter. Applications highspeed, saturated switching applications for industrial service in thick and thinfilm circuits. Pnp transistors toshiba semiconductor and storage pnp. Description 1 handbook, halfpage pnp switching transistor in a. Features, specifications, alternative product, product training modules, and datasheets are all available. It was originally made in the to18 metal can as shown in the picture. Apr 24, 2019 in this tutorial, we will try to understand the basics of pnp tansistor. Discrete semiconductors data sheet book, halfpage m3d111 2n4036 pnp switching transistor 1997 jun 19 product specification supersedes data. It is designed for low to medium current, low power, medium voltage, and can operate at moderately high speeds. Oxford university press usa publishes scholarly works in all academic disciplines, bibles, music, childrens books, business books, dictionaries, reference books, journals, text books and more.
Description pnp switching transistor in a to18 metal package. Pinning pin description 1 emitter 2 base 3 collector, connected to case fig. The rest of this article will discuss pnp characteristics and applications. The 2n3904 is a really common transistor that we use all the time and the 2n3906 is its pnp sibling. This condition of transistor is act as a fullyon and this is saturation region.
In this datasheet, they drive the baseemitter junction to a 9v reverse bias through the 10k base resistor, so they basically go from 1ma out of the base pnp forward bias to 1ma into the base pnp reverse bias. Modern successors to the 2n3055 can be much more suitable in fastswitching circuits or highend audio power amplifiers. Before you use our products, please contact our sales representative and verify the latest specifica. Pnp switching transistor pmss3906 ordering information limiting values in accordance with the absolute maximum rating system iec 604. General description npnpnp transistor pair in a sot666 plastic package. Symbol parameter conditions value unit rth ja thermal resistance from junction to ambient note 1 250 kw. Sep 07, 2012 still, for switching loads which draw up to a few hundred milliamps, this circuit using just a pnp transistor and a resistor is really quite practical. Pinning pin description 1 emitter 2 base 3 collector, connected to case. Q101 qualified and ppap capable s prefix for automotive and other applications requiring unique site and control change requirements these devices are pb. As shown above, a pnp transistors emitter and collector are formed via ptype doping.
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