Free packages are available maximum ratings rating symbol value unit collector emitter voltage bc546 bc547 bc548 vceo 65 45 30 vdc collector base voltage bc546 bc547 bc548 vcbo 80 50 30 vdc emitter base voltage vebo 6. Bc157 datasheet, equivalent, cross reference search the value of i b should not exceed ma. It can amplify power, voltage and current at different configurations. Pdf bc157 datasheet download bc has a gain value of tothis value determines the amplification capacity of the transistor. A bc157 was in a metal package and i still have some. Typical parameters which may be provided in scillc data sheets andor specifications can and do vary in different applications and actual performance may. A transistor is normally used for amplification of current. I found a perfect simple circuit schematic which ive attached below, and ive purchased the breadboard, soldering iron and all. Com datasheet search site for electronic components and semiconductors and other semiconductors. These transistors are utilised in audio frequency, and small signal directly coupled preamplifiers.
Of course, after 40 plus years of life, most electrolytic capacitors are suspect and the carboncomposition resistors have drifted high and sometimes become very noisy. Bc157 datasheet, equivalent, cross reference search. A transistors acts as an amplifier when operating in active region. Bc transistor as switch when a transistor is used as a switch it is operated in satasheet saturation and cutoff region as explained above. Bc337, amplifier transistors bc33716, bc33725, bc33740. So, the basic purpose of transistor is transfer of resistance. Bc157 datasheet pdf anything more than 5ma will kill the transistor. The bc548 is an example of the modern lowcost member of this family, still in a throughhole package, while the bc848 is the surfacemount version. Bc142 equivalent datasheet, cross reference, circuit and application notes in pdf format. Bc157 datasheet pdf low level and general purpose amplifiers. I hope you all will be absolutely fine and having fun. Bc557 is a pnp transistor hence the collector and emitter will be closed forward biased when the base pin is held at ground and will be opened. Collector load lines for specific circuits must fall below the limits indicated by the applicable curve.
They are suitable for use in driver stages, low noise input stages and signal processing circuits of television receivers. Bc547 is a npn transistor hence the collector and emitter will be left open reverse biased when the base pin is held at ground and will be closed forward biased when a signal is provided to. I have a small circuit which controls the speed of a dc motor as per the ambient temperature. Bc158 datasheet pnp transistor, pdf, pinout, equivalent, replacement, schematic, manual, data, circuit, parts, datasheet. Today, i am going to give an introduction to bc547. Of the above types common emitter type is the popular and mostly used configuration. It is basically an npn bipolar junction transistor bjt. I think i still have some bc457 transistors that are in a weird epoxy package. I would replace a bc167 with a modern bc547 transistor but check the pins. Bc157 datasheet, equivalent, cross reference search of the above types common emitter type is the popular and mostly used configuration. One of my interests is restoring vintage transistor radios. Low level and general purpose amplifiers, download bc157 datasheet from. Bc157 bc157 bc159 transistors components datasheet pdf data sheet free from datasheet data sheet search for integrated circuits. Bc639 45 60 100 v v v vces collectoremitter voltage.
Amplifier transistors npn silicon maximum ratings rating symbol bc337 bc338 unit collectoremitter voltage vceo 45 25 vdc collectorbase voltage vcbo 50 30 vdc. If you cant search it here, nowhere else in the world. Complete technical details can be found at the bc557 datasheet given at the end of this page. Bc157 datasheet, bc157 pdf, bc157 data sheet, bc157 manual, bc157 pdf, bc157, datenblatt, electronics bc157, alldatasheet, free, datasheet, datasheets, data sheet. Vce limits of the transistor that must be observed for reliable operation. Com is the biggest online electronic component datasheets search engine. The generalpurpose range of transistors is a good substitute for basic noncritical audio applications, as these transistors are similar and equivalents to each other. I have across this circuit across a lot of forums and was just wondering if i could replace bc547 q1 in the circuit with the commonly used 2n2222 npn transistor. Transistor bc 157 datasheet, cross reference, circuit and application notes in pdf format. When uses as an amplifier the dc current gain of the transistor can be calculated by using the below formulae. Lownoise bc157 transistor datasheet pdf, bc157 equivalent. Product overview type number package nexperia jedec.
When base current is removed the transistor becomes fully off, this stage is called as the cutoff region and the base emitter voltage could be around mv. Bc1576 transistor datasheet pdf, bc1576 equivalent. Hitachi 2sc281 nec d882 a564a d1163a 2sc1815 cross reference a628a kra2203 krc1211 nec d288 text. When this transistor is fully biased then it can allow. Transistor equivalent or substitute used for power amplifier. The bc549c is an npn transistor belonging to a group of generalpurpose npn semiconductors consisting of bc547, bc548, and bc549. Bc557, 557b general purpose transistor page 3 310505 v1. Bc has a gain value of tothis value determines the amplification capacity of the transistor. Bc158 datasheet, equivalent, cross reference search. Bc858 65 v, 100 ma pnp generalpurpose transistors rev. Find the pdf datasheet, specifications and distributor information. After few days electron components mailed me that the courier service to my place has been stopped temporarily with no prior notice.
The word transistor is a combination of two words, transfer and resistor. As mentioned the biasing current should maximum of 5ma. But the reliability and failure modes of vintage transistors is interesting, and is the subject of this article. What is the transistor equivalent of bc167 and bc157. Bc557 bc556 the safe operating area curves indicate ic.
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