Jellybean list - Page 1
Forum section: electronics / general

author: Phaedrus
author_rank: Frequent Contributor
timestamp: April 15, 2014, 10:17:01 pm
content: In light of the discussion earlier about what is a jellybean, I wonder if people could post what ICs they consider to be jellybean partsSome of the ones we got in that thread:Op-amps:LM324LM358TL072Comparators:LM393LM339Timers:NE555Transistors:2n2222BC548PN29072N39042N3906Diodes:1N41481N9141N400x1N58171N5819Regulators:LM31778xxMC34063Voltage reference:TL431Logic:74HC series

author: c4757p
author_rank: Super Contributor
timestamp: April 15, 2014, 10:28:55 pm
content: Transistors:PN29072N39042N3906plus the MMBT version of all of themDiodes:1N4148 / 1N9141N400x1N5817-19Voltage reference/shunt reg:TL431You could make a case for LM337/LM79xx and the 741 op amp, but they're not really all that common anymore. Same with most of the 4000 series, except a select few (like the 4051/2/3 analog muxes).TL072?

author: rolycat
author_rank: Super Contributor
timestamp: April 15, 2014, 11:11:22 pm
content: There have been quite a few similar lists compiled on the forum -thisis a recent one.It was also suggested in that thread that the completed 'jellybean' list could be added to thewiki- doesn't seem to have happened, though. Maybe the wiki needs more love...

author: David Hess
author_rank: Super Contributor
timestamp: April 19, 2014, 04:18:06 am
content: Quote from: Phaedrus on April 15, 2014, 10:17:01 pmI would also include at least the OP-07 for precision use since there are so many sources for it now and it is cheap.QuoteI have replaced the 2N2222 and 2N2907 with the 2N4401 and 2N4403 which can also in almost all cases replace the 2N3904 and 2N3906 as well.I would include a complementary pair in TO-225 packages for those times when a TO-92 will not cut it.2N7000 (TO-92 N-Channel MOSFET)2N3055D44H11 and D45H11QuoteI do not think there is any reason to have both the 1N914 and 1N4148.I would include the 1N270 or a small signal schottky. They make great baker clamps, protection diodes, and detectors.I would include the 1N4937 as a general purpose fast recovery rectifier.In general a higher voltage diode in the same series can replace all of the lower voltage ones and usually does not cost any more so there is no reason to include the 1N5817.QuoteLM317LZ (makes a good instant current source/sink)LM33778Lxx79xx79Lxx

author: con-f-use
author_rank: Unknown
timestamp: April 19, 2014, 10:21:57 am
content: Temperature Sensors:TC1047TMP35 / TMP36 / LM35TC77 (digital)

author: mrkev
author_rank: Regular Contributor
timestamp: April 19, 2014, 11:07:00 am
content: Quote from: Phaedrus on April 15, 2014, 10:17:01 pmStrange, I wouln't consider those as jelly bean, it's more common to use (at least here):bc337, bc547, bc556; for more power bd139 and bd140; 2n7002 as mosfetAnd just a bit more than a decade back, we were used to use old TESLA (communistic factory for el. parts), some have still full draws with those:ksy21, kc507, kf507, kd502, etc...

author: David Hess
author_rank: Super Contributor
timestamp: April 19, 2014, 07:42:31 pm
content: Quote from: mrkev on April 19, 2014, 11:07:00 amI keep a stock of high beta transistors like the 2N5087 and 2N5088 around for when general purpose ones will not do but since their application is limited, I did not mention them. For similar reasons I might leave the BC series intended for audio out as well.Similarly I try to keep saturated switching or RF transistors like the MPSH10 and MPSH81 around.

author: c4757p
author_rank: Super Contributor
timestamp: April 19, 2014, 07:45:33 pm
content: Quote from: mrkev on April 19, 2014, 11:07:00 amPN2222/2907 and 2N3904/6 are very common here.

author: SolarSunrise
author_rank: Regular Contributor
timestamp: April 24, 2014, 10:47:16 am
content: Why are people calling cheap and readily available parts jellybeans? Hmm outside US jellybeans are hard to find, and if you do, they cost a fortune!

author: electronics man
author_rank: Frequent Contributor
timestamp: April 24, 2014, 03:37:04 pm
content: Quote from: SolarSunrise on April 24, 2014, 10:47:16 amThey are. Readily available in the uk and syes they are expensive

author: NiHaoMike
author_rank: Super Contributor
timestamp: April 24, 2014, 04:55:20 pm
content: The 3842/3843 and equivalents are common in switching power supplies.

author: gareth
author_rank: Contributor
timestamp: June 04, 2014, 03:03:25 pm
content: I've been looking for a small-signal jellybean p-channel mosfet without luck. I've been using a ZVP4424A which works but it's a bit expensive (ok, I'm a cheapskate!). So I have come here, metaphorical cap in hand, hoping that someone can suggest a better alternative or help me to improve my search abilities so that I can find it myself (teach a man to fish and all that). One of the attractions for me of Jellybean parts apart from price is the long lifetimes that they endure. I'm looking forward to building 555 circuits with my great-grandchildren!!I have looked over the more obvious threads here and via google, so apologies in advance if this has already been answered and I missed it somehow.I need to switch only a few mA by a 3.3v logic level from a MCU, for voltage measurement of a battery. The mosfet is used to avoid the (tiny) losses involved in a more straightforward resistor divider. Essentially I want to make the circuit in the attachment (from original design here:http://jeelabs.org/2013/05/18/zero-power-measurement-part-2/)My ideal mosfet would be:Low leakage when 'off' (is this what is referred to as Gate-Body Leakage?)CheapReadily available until the end of timeAvailable in both through hole and surface mountFrom my other research on the web I've looked at these candidates:BSS84 - smt onlyFDN338 - smt and can't find it on sale!!So is there a part that fits all my needs? The leakage needs to be below ~200-300nA because otherwise I may as well use a resistor divider.I've blogged about the application for this circuit and this question here:http://l0l.org.uk/wireless-sensors-overview/Many thanks in advance.Gareth

author: calexanian
author_rank: Super Contributor
timestamp: June 04, 2014, 07:15:03 pm
content: I might add SD103 as the schotkey small diode and 1N34 just because if you need germanium its one of the only old school ones left in any sort of quantity. Also ltC1044/7660 charge booster. Used as a bias supply in jillions of LCD displays.

author: David Hess
author_rank: Super Contributor
timestamp: June 18, 2014, 11:22:15 am
content: Quote from: gareth on June 04, 2014, 03:03:25 pmI searched for one but there is not even an inexpensive N-channel MOSFET which I find puzzling. MOSFETs also tend to work poorly with logic level drive below 5 volts.Quote from: calexanian on June 04, 2014, 07:15:03 pmI like the germanium 1N270 myself but for a jelly bean small signal schottky diodes I would probably pick the BAT41 (low leakage and low capacitance) and BAT48 (high current). They are all pretty expensive though compared to the 1N4148 and similar.

author: dannyf
author_rank: Super Contributor
timestamp: June 18, 2014, 11:30:24 am
content: Mine is simpler:transistor:2n5401/5551: analog / digital, high voltage / low voltage;fdp3672: almost logic level.irf540: I have a ton of itirf510: the most unique mosfet in my view.regulators:AM1117, different flavorsTL431: cheap.logic:HC132: can do anythingHC164: my goto shift registertimer:12F675: program anything to itdiodes:1n4148bat54s: cheapopamp:tl072: tons of itRF:BF998: cannot beatPN3563: tons of it