Any and all sanyo products described or contained herein do not have specifications that can handle applications that require extremely high levels of reliability, such as lifesupport systems, aircrafts. Optimized to provide low noise at both high and low. The lsk170 series is a pin for pin replacement of the toshiba 2sk170 and improved functional replacement for the interfet. Figure 4bshows five of the transconductance curves for the 2sk170, with i dss between 2. Pdf 2sk30atm 2sk117 2sk170 2sk246 2sk362 2sk363 2sk364 2sk369 2sk373 2sj74 2sj111 fet 2sj111 2sk30a 2sj110. Please let us know if you have a known distributor so we can add it to our database, or request a quote from one of our partners. The 2sk369 has a higher yfs and its white noise will be lower. It is theoretically important to select the proper range for the devices used in this opamp. Its higher idss brother the pn4391 is good for cascoding, as it will give one about 45v vds when positioned above a pn4393 probably more if used with a low current device like the 2sk170. Toshiba field effect transistor silicon n channel mos type. New ultra low noise jfets target audio, instrumentation, medical. New ultra low noise jfets target audio, instrumentation. Linear systems lsk170 ultra low noise single nchannel jfet 8 pieces sep 18th update. This product format 8 packs of unmatched jfets has been discontinued and replaced.
We are now offering a new wider range of matched linear systems jfets as it is a more practical format for most diyers. Toshiba field effect transistor silicon n channel junction. Ive tested the 2sj498 in an mc cartridge headamp circuit, and the results suggest that. Toshiba is continually working to improve the quality and reliability of its products. Linear systems lsk170 ultra low noise single nchannel. The basic circuits on which erno borbely based most of his projects are described in jfets. Unfortunately we do not know of any distributors for toshiba 2sk170vtpe2,f. Toshiba field effect transistor silicon n channel junction type. Vdss800vmin applications designed for high voltage, high speed power switching absolute maximum ratingsta25.
Toshiba transistor silicon pnp epitaxial type 2sa1930 power amplifier applications driver stage amplifier applications high transition frequency. Hey there, i built a opamp riaa preamp during xmass holiday, i hooked that to the spectrum analyzer to watch harmonics and frequency response. Superior performance, domestic source the lsk170 is specifically designed for low noise, high input impedance applications within the audio, instrumentation, medical and sensors markets. Jfets are available at mouser electronics from industry leading manufacturers. Minimalist audiophile circuit using the legendary 2sk170 jfet passive no feedback riaa equalization 40db gain russian k40y and k42y paper in oil coupling capacitors nichicon muse filter capacitors vishaydale cmf6. The lsk170 series is a pin for pin replacement of the toshiba 2sk170 and improved functional replacement for the interfet if20, if30, if31, and if4500. Below description of the library from cadsoft webpage. For example, q1 and q2 should be gr series devices, q3, q4, and q6 should be bl series. Better use 2sk389 by elso kwak tweaks for systems, rooms and do it yourself diy help.
As the author admits, these were the building blocks on which many if not all of his amplifiers are based. This article is the first part, as originally published in. What happens now if you insert a typical jfet, such as the 2sk170, for q1. Audio asylum audio asylum thread printer get a view of an entire thread on one page. Testing a jfet with a multimeter might seem to be a relatively easy task, seeing as how it has only one pn junction to test. Unfortunately we do not know of any distributors for toshiba 2sk170 vtpe2,f.
Vdss800vmin applications designed for high voltage, high speed power switching absolute. The toshiba to92 2sk117 and sot346 2sk209 could be close enough to complement it. Toshiba fet, silicon n channel junction typefor low noise audio amplifier,alldatasheet, datasheet, datasheet search site for electronic components and semiconductors, integrated. Nevertheless, semiconductor devices in general can malfunction or fail due to their inherent electrical sensitivity and vulnerability to physical. Recent listings manufacturer directory get instant. Referring to these articles frequently, the author admits, these were the building blocks on which many if not all of his amplifiers are based. Toshiba fet, silicon n channel junction typefor low noise audio amplifier,alldatasheet, datasheet, datasheet search site for electronic components and semiconductors, integrated circuits, diodes, triacs, and other semiconductors. If you take one of these at random and operate it without r s, the actual drain current. Vazeni zakaznici, z duvodu opatreni vyhlasenych vladou cr je na nasich prodejnach do odvolani mozny pouze vydej online objednavek z eshopu a prijemvydej servisu akumulatoru. Toshiba transistor silicon pnp epitaxial type 2sa1930.
Nevertheless, semiconductordevices in general can malfunction or fail due to their inherent electrical sensitivity and vulnerability to physicalstress. Pdf 2sk30atm 2sk117 2sk170 2sk246 2sk362 2sk363 2sk364 10rrent 2sk373 2sj74 2sj111 2sj110 2sj111 fet 2sk369 2sk364 2sk363 2sk362 2sk30atm 2sk246 2sk117. Low onresistance high speed switching low drive current no secondary breakdown suitable for switching regulator and dcdc converter. It is remarkable, though, that the bf862 achieves the same yfs at a third of the capacitances of the 2sk170. The 2sk170 2sj74 jfet family is factory sorted into three current ranges for idss. Please use it in combination with the volume on power transistors. The new frontiers, part i and ii, published in audio electronics ae 599 and 699, and allfet line amp, published in audioxpress may 2002. Information furnished by linear integrated systems is believed to be accurate and reliable. Toshiba field effect transistor silicon p channel junction. Linear systems replaces discontinued toshiba 2sk170 with lsk170.
Bloyet, lepaisant, and varoquaux3 suggest a figure of merit of the product of the noise voltage and current as. Toshiba, alldatasheet, datasheet, datasheet search site for electronic components and semiconductors, integrated circuits, diodes, triacs, and other semiconductors. Amplimos one stage amplifiers amplificatori audio monostadio. Free packages are available maximum ratings rating symbol value unit drain. Jfet phonoriaa preamplifier kit boozhound laboratories. Provide your own chassis, power supply, and connectors. Linear systems lsk170 ultra low noise single nchannel jfet. Delivery times for other countries and shipping methods can be found on our shipping information page. N channel junctions type low noise audio amplifier applications, 2sk117 datasheet, 2sk117 circuit, 2sk117 data sheet. Linear systems replaces discontinued toshiba 2sk170 with. Ic cross reference cross reference ci stk cross reference ci tda cross reference ci sharp cross reference hitachi audio ic cross reference and circuit applications smd cross reference and equivalent we make every effort to ensure that the material on this site is accurate, however we do not warrant or represent that the information is free from errors or omission. They look to be very similar in the datasheets i have.
The pn4393 has a high idss and high cutoff voltage compared to the 2sk170, so you need to be a bit careful how you use it. Lsk170 ultra low noise linear integrated systems single nchannel jfet lues above which serviceability may be impaired. Meter check of a transistor jfet junction fieldeffect. The new frontiers, part i and ii, published in audio electronics ae 599 and 699. Applies to shipments to germany with our standard courier service dhl when paid via paypal, credit card or lastschrift. An n channel jfet 2sk170 and a p channel jfet 2sj74 are joined at the source and. Nchannel jfet transistor, audio amp 50v 10ma nte458. Noise measurements on this amplifier yield a lowfrequency noise current of 0. Lsk170 lsk170c lsk170b replacement 2sk170 2sk170 2sk170 to92 lsk389 equivalent nchannel jfet sot23 ultra low igss. This part is the equivalent replacement for the following. Replacement for toshiba 2sk1702sj74 page 4 diyaudio.662 718 1376 1160 239 83 1367 29 738 139 891 1403 664 1272 633 1548 1080 12 268 346 339 855 850 1333 214 93 1587 1154 342 1233 717 444 1213 1500 1602 200 725 1120 1238 1452 1123 1371 1068 619