They measure the current flow by biasing the transistor. Bipolar bjt single transistor, npn, 50 v, 70 mhz, 3 w, 500 ma, 35 hfe. The suffix your transistor has determines which hfe gain it will have, as concluded from the datasheet. Npn bjt transistor hfe saturation switch all about circuits. The hie of a transistor is never anywhere near the 3k, 1k or 1. Due to the high gain characteristic the transistor will switch on with just ib100a. In reality, it is a fraction of an ohm, so low it is negligible. Bc327328 pnp epitaxial silicon transistor absolute maximum ratings ta25c unless otherwise noted electrical characteristics ta25c unless otherwise noted hfe classification symbol parameter value units vces collectoremitter voltage. When trying to decide which transistor you need, take into consideration the following. These parameters are based on the hybrid model for studying the operation of a transistor amplifier in the low voltage region,also called small signal operation. This device features high breakdown voltage, low leakage current, low capacity and beta useful over an extremely wide current range. If the transistor is used in a switching application, the collector voltage will be lower at around 200 millivolts and the hfe was measured to be 52 at ma.
The small letter h indicates it is a small signal gain. This is the current gain for a transistor expressed as an h parameter hybrid parameter. The closest i could come to the rb value was 7170 ohms. So if 1ma is fed into the base of a transistor and it has a hfe of 100, the collector current will be 100ma. Transistor npn 75v 500ma to39 online from elcodis, view and download 2n1711 pdf datasheet, transistors bjt single specifications. Jan 26, 2008 hfe is a transistor parameter that denotes its gain ratio. Quick reference data symbol parameter conditions min typ max unit per transistor. So your transistor will actually say something like, 2sc828aq, 2sc828ar or 2sc828as, being 3 variants of 2sc828a. So on a multimeter, it indicates a mode where the meter can measure probably crudely, the hfe of a transistor. Discrete semiconductors data sheet book, halfpage m3d111 2n16 npn medium power transistor 1997 apr 11 product specification supersedes data of september 1994 file under discrete semiconductors, sc04 philips semiconductors product specification npn medium power transistor 2n16 features pinning low.
In technical terms, hfe for a transistor is the gain ratio of the collector current output divided by the base current input. This device features high breakdown voltage, low leakage current, low capacity and. Free packages are available maximum ratings rating symbol value unit collector. A bjt transistor has typical current amplification from 30 to 800, while a darlington pair transistor can have an amplification factor of 10. Philips, alldatasheet, datasheet, datasheet search site for electronic components and semiconductors, integrated circuits, diodes, triacs, and other semiconductors. It is intented for use in high performance amplifier, oscillator and switching circuits. Apr 18, 2015 i think mainly because getting a quality usable, if you depend on it measurement of some property of a transistor is a bit more involved. For example, the data sheet of the 2n3904 shows a hfe of 100 minimum at 10ma collector current and 1 volt collector voltage. This constant current provided by the q1 circuit if the transistor under test is an npn transistor and by q2 circuit if the transistor under test is a pnp transistor is fed to the base of transistor. The base current is then amplified by hfe to yield its amplified current. A transistor works by feeding a current into the base of the transistor. Ta25c unless otherwise notedsymbol datasheet search, datasheets, datasheet search site for electronic components and semiconductors, integrated circuits, diodes and.
The 2n1711 is a silicon planar epitaxial npn transistor in jedec to39 metal case. The 2n1711 is also used to advantage in amplifiers. What is the significance of hfe, hie, hre and hoe in. Polarity nchannel, pchannel, npn and pnp, for example composition material germanium, silicon, etc. Description collectoremitter voltage collectorbase voltage emitterbase voltage collector current continuous power dissipation 25c derate above 25c power dissipation 25c derate above 25c operating and storage junction temperature range thermal resistance junction to case rth jc 175 cw symbol vceo vcbo vebo a v unit. The 2n1711 is also used to advantage in amplifiers where low noise is an important factor. Transistor tester to test hfe and working of npn and pnp. So if you see a bipolar transistor hfe, gain, or i. The letter f indicates that it is a forward transfer characteristic, and the letter e indicates it is for a common emitter configuration.
Hefei xinqiao international airport, in anhui, china. For your security, you are about to be logged out 60 seconds. Table of contents page index to devices 3 power transistor product classification chart file type page vdrom max. The 2n1711 is a npn silicon transistor for amplifier and switching applications. Hfe gene, a gene that encodes the human hemochromatosis protein. Npn epitaxial planar transistor designed for small signal general purpose switching applications. Buy 2n1711 stmotorola, learn more about 2n1711 trans gp bjt npn 30v 0. Bc847bpn 45 v, 100 ma npnpnp generalpurpose transistor. The value of this constant current can be given by the equation. Hparameter model h fe, the current gain of a bipolar junction transistor. The central semiconductor 2n1711 is a siliconnpn epitaxial planar transistor designed for small signalgeneral purpose switching applications.
Savantic semiconductor product specification bd silicon npn power transistors. Philips npn medium power transistor,alldatasheet, datasheet, datasheet search site for electronic components and semiconductors, integrated circuits, diodes, triacs, and other semiconductors. Hefei luogang international airport, in anhui, china, now defunct. Apr 29, 2019 it means that the multimeter is marketed to home experimenters and the like, that might be using surplus or scrapped materials for projects, and so would like to find the better gain in such surplused transistors. A, february 2000 bd579 1 to126 npn epitaxial silicon transistor absolute maximum ratings tc25c unless otherwise noted electrical characteristics tc25c unless otherwise noted hfe classification symbol parameter value units. The pot r5 can be adjusted to get a constant current of 10ua. Bc107 datasheet, bc107 pdf, bc107 data sheet, bc107 manual, bc107 pdf, bc107, datenblatt, electronics bc107, alldatasheet, free, datasheet, datasheets, data sheet.
197 863 1439 276 1107 766 1395 1290 577 960 192 448 608 136 994 896 1051 1437 1046 1661 1635 660 2 377 41 456 1287 1593 118 858 505 669 934 1069 1516 627 827 1480 1090 561 909 1296 502 1102 231 270