This gives the lowest collect emitter voltage and reduces the power in the transistor. See detailed ordering and shipping information in the package. Pinning pin description 1 emitter 2 base 3 collector, connected to case. To calculate your base resistor use ohms law to see that the resistance is the voltage drop divided by your base resistance roughly or 36 ohms. Features, specifications, alternative product, product training modules, and datasheets are all available. Mainly transistors are used for the switching purpose. No licence is granted for the use of it other than for information purposes. Transistor mounted on an fr4 printedcircuit board, singlesided copper, tinplated, standard footprint. Zxtp25140bfh 140v, sot23, pnp medium power transistor datasheet. Description pnp switching transistor in a to18 metal package. Silicon offers good overall performance with a base emitter junction turn on voltage of around 0.
Symbol parameter conditions value unit rth ja thermal resistance from junction to ambient note 1 250 kw. Product overview type number1 package npn complement nxp jeita jedec bc6402 sot54 sc43a to92 bc639 bcp53 sot223 sc73 bcp56 bcx53 sot89 sc62 to243 bcx56 1 valid for all available sele. Generally, the pnp transistor can replace npn transistors in most electronic circuits, the only difference is the polarities of the voltages, and the directions of the current flow. The chip has a low output signal for the active output.
Pnp switching transistor 2n3906 package outline unit a outline references version european projection issue date iec jedec jeita mm 5. High voltage fastswitching pnp power transistor stmicroelectronics. The difference between a pnp transistor and a npn transistor is their polarity and their actions are reversed pnp transistor. Zxtp25140bfh 140v, sot23, pnp medium power transistor. I have not worked with transistor much, and therefore need some guidance in deriving the base resistor and pullup resistor values. In this tutorial we will talk about the pnp transistors. Description pnp switching transistor in a sot23 plastic package. In saturation region, the transistor operates as an closed switch. Pnp transistor 12a02chtle switching reed relay edr201a05.
A pnp transistor is just like an npn in terms of function, what it accomplishes in a circuit. Pnp transistors toshiba semiconductor and storage pnp. Mbt35200mt1 high current surface mount pnp silicon. Pnp switching transistor 2n3906 package outline unit a outline references version european projection issue date iec jedec eiaj mm 5. Like any transistor, a pnp provides amplification andor switching capabilities to turn a load on or off connected to it. A pnp transistor conducts from collector to emitter. This is the basic electronic component that uses vastly in the making of electronic circuit. The datasheet says that the gain of the transistor can be as low as 15.
See more ideas about electronics basics, circuit diagram and arduino. Silicon pnp switching transistors stmicroelectronics. Pinning marking pin description 1 base 2 emitter 3 collector type. Low voltage fastswitching pnp power bipolar transistor. Bc558 silicon pnp transistor audio amplifier, switch. Linear and switching industrial equipment description the 2n6111 is an epitaxialbase pnp silicon transistor in jedec to220 plastic package. Pinning marking pin description 1 base 2 emitter 3 collector type number marking code bsr12 b5p fig. Silicon pnp switching transistor stmicroelectronics preferred salestype pnp transistor applications. If you have any questions related to the data sheet, please contact our nearest sales office via email or telephone details via. This will apply the 12 v to the chip output and destroy it or, if there are protection diodes on the output, the current will flow through the protection diodes into. When you increase voltage to the base of a pnp transistor, the transistor is turned off more and more until it no longer conducts and completely shuts off.
Q101 qualified and ppap capable s prefix for automotive and other applications requiring unique site and control change requirements these devices are pb. Electronics basics electronics projects dc circuit nikola tesla electrical engineering arduino technology digital solar. Pnp and npn transistors difference random nerd tutorials. Basic semiconductor physics, diodes, the nonlinear diode model, load line analysis, large signal diode models, offset diode model, transistors, large signal bjt model, load line analysis, small signal model and transistor amplification. Applications highspeed, saturated switching applications for. Part 7 covered using transistors to switch loads that require higher currents or voltages than the microcontroller can handle. This article will show how to connect a pnp transistor in a circuit for switching or for amplification.
Pnp switching transistor in a sot23 plastic package. Applications highspeed, saturated switching applications for industrial service in thick and thinfilm circuits. Transistor is the very important components in electronics system. Sot89 pnp silicon power switching transistor isssue 1 december 1998 features 2w power dissipation 6a peak pulse current excellent h fe characteristics up to 6amps extremely low saturation voltage e. Identifying the terminals of a transistor requires the pin diagram of a particular bjt part. Low voltage fast switching pnp power bipolar transistor author. The most commonly used transistor switch is the pnp variety shown in figure 1. The base is very thin, and most of the holes cross the reversebiased basecollector junction to the collector. Technical literature, 12790, product development, specification, datasheet, 2stn2540 created date. Pnp transistor works same as npn for a switching operation, but the current flows from the base. Three modes of operating region of transistors are. Often in switching designs saturation is used instead of hfe.
I am trying to use a 2n3906 pnp transistor to switch the 24 volt pneumatic valve solenoid on and off. This section covers the use of pnp transistors to perform high side switching with a microcontroller. Pnp highside transistor switching with microcontroller. Pnp switching transistor 2n4036 features high current max. So, basically in this type of transistor two ptype positive materials dope a single ntype positive material and the pnp configuration is established, and it is referred to as a pnp transistor. Pnp transistor is the types of bipolar junction transistor. In this switching, base current flows when the base voltage is more negative. Because of the high voltage of 11volts on the base of q1 will destroy the io pin limited to 5volts we must use a npn transistor switch q2 as a predriver. In this circuit, a transistor essentially equivalent to, low power, and a builtin overcurrent protection circuit to protect the switching transistor from, equivalent circuits pin no. Let us consider the two examples of pnp transistors 2n3906 and pn2907a, shown in the images above.
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 parameter is the collector to base breakdown voltage of a bipolar transistor. Active regionsaturation regioncutoff region1 active region characteristics. Pnp switching silicon transistor qualified per milprf19500290 devices qualified level 2n2904 2n2904a 2n2904al 2n2905 2n2905a 2n2905al jan jantx jantxv jans maximum ratings ratings symbol 2n2904 2n2905 2n2904a, l 2n2905a, l unit collector emitter voltage v ceo 40 60 vdc collector base voltage v cbo 60 vdc. Pmst3906 datasheet, equivalent, cross reference search.
Low current maximum100 ma low voltage maximum 65 v applications. The stx93003 is expressly designed for a new solution to be used in compact fluorescent lamps, where it is coupled with the stx83003, its complementary npn. Zxtp25060bfh 60v pnp medium power transistor in sot23 sot23 bvceo 60v breakdown voltage 100v forward blocking voltage ic 3a continuous collector current, icm 9a peak pulse current, low saturation voltage, vcesat. Zxtp25140bfh 140v, sot23, pnp medium power transistor datasheet keywords. 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. Transistor is made by using of 2 pn junction diode. Transistor 2sa1034, 2sa1035 silicon pnp epitaxial planer type for lowfrequency and lownoise amplification unit. Check out the datasheet, see if you recognize any familiar characteristics.
For information on tape and reel specifications, including part orientation and tape sizes, please refer to our tape and reel packaging specifications. Pnp transistors can also be used as switching devices and an example of a pnp transistor switch is shown below. 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. Description pnp switching transistor in a to39 metal package. General purpose switching and amplification sot23 parameter symbol value unit collector base voltage bc856 bc857 bc858 vcbo805030. That means you need 10 15 ib or 667ma in your base to know that you will drive the transistor at all times. When to use npn transistors, and when to use pnp transistors for switching i want to be able to use a transistor to turn on and off a light, such that writing digitalwritepin, high will allow current to flow through the light, and digitalwritepin, low will stop the flow of current and turn the light off again. For this to happen we need to know the maximum load current for the device to be turned on and the minimum hfe of the transistor.
Part 8 showed how to use a pnp transistor allowing the load to be at ground potential, as is sometimes necessary. The easiest way to switch a higher power load than a microcontroller can handle is to use an npn transistor as explained in part 7. I have a common ground for the stamp, demultiplexer, and pneumatic valve. Transistor specifications explained electronics notes. The 2n3904 is a really common transistor that we use all the time and the 2n3906 is its pnp sibling. Mmbt4403m3t5g pnp switching transistor on semiconductor. Using pnp transistors to switch higher voltage loads. The secret to making a transistor switch work properly is to get the transistor in a saturation state. Bc640 datasheet, equivalent, cross reference search. It is the maximum collector base voltage again it is generally measured with the emitter left open circuit. Pdf an8377n an8377n 100kw mn6622 transistor ic equivalent book. A bipolar transistor allows a small current injected at one of its terminals to control a much larger current flowing between two other terminals, making the device.
In active region, the transistor operate as an amplifierthe junction baseemitter is forward biased. Working of transistor as a switch npn and pnp transistors. Plate 9 illustrates how to connect a pnp transistor to an arduino or similar microcontroller. The difference this time is that we are switching power with a pnp transistor sourcing current instead of switching ground with an npn transistor sinking current. Pnp switching transistor pmss3906 ordering information limiting values in accordance with the absolute maximum rating system iec 604. And also this circuit connected with the resistors of r b 200k. I have the following circuit and i want to calculate base resistor r1, and the r2 resistor, which i am using to pull up the pnp base to 3. Im using 4 outputs from a basic stamp to control 14 outputs turning onoff 24 volt pneumatic valve portsthrough a 74ls154 demultiplexer chip. As per the bc857c datasheet, the minimum current gain is 420, vbesat is 700mv, and vcesatmax is 300mv. Diodes and transistors pdf 28p this note covers the following topics. In a pnp transistor, the emitterbase region is forward biased, so holes are injected into the base as minority carriers. Pnp switching transistor in a sot23 to236ab small surfacemounted device smd plastic package.
In pnp transistor, pnp stands for positivenegativepositive configuration. Many designs dont reverse bias the base emitter junction to turn the transistor off. Pinning bcv65 npnpnp generalpurpose transistor rev. Pnp transistor tutorial the bipolar pnp transistor. The arrows in the npn and pnp transistor symbols indicate the pn junction between the base and emitter. The problem is that the emitterbase junction is always forward biased. There is a temptation to think that we could do the same trick with an pnp transistor as shown in figure 1b. Pnp transistors on semiconductor pnp online catalog.
Pnp switching transistor 2n3906 thermal characteristics note 1. Discrete semiconductors data sheet book, halfpage m3d187 pmst3906 pnp switching transistor 1999 apr 22 product specification supersedes data of 1997 may 27 fphilips semiconductors product specification pnp switching transistor pmst3906 features pinning. Pnp switching transistor bsr12 features low current max. There are two types of bjt npn and pnp transistors. D suitable for af driver stages and low power output stages. Pnp switching silicon transistor datasheet catalog. Zetex zxtp25140bfh 140v, sot23, pnp medium power transistor datasheet dcdc conversion high power dissipation sot23 package high peak current low saturation voltage 180v forward blocking voltage created date. Mbt35200mt1 high current surface mount pnp silicon switching transistor for load management in portable applications features aec.
Unipolar transistors, such as fieldeffect transistors, use only one kind of charge carrier. Pinning pin description 1 emitter 2 base 3 collector, connected to case fig. Pnp transistor circuit characteristics, working, applications. Mje5850 switchmode series pnp silicon power transistors. Pin io function 1 clm i detects the overcurrent state in switching transistor. For the pnp transistor, the base terminal is always negatively biased with respect to the emitter.
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