Description, RF Power Transistor NPN Epitaxial Planar Type. Company, Mitsubishi Electronics America, Inc. Datasheet, Download 2SC datasheet. Quote. 2SC datasheet, 2SC pdf, 2SC data sheet, datasheet, data sheet, pdf, Mitsubishi Electric Corporation, NPN EPITAXIAL PLANAR TYPE(for RF. 2SC Datasheet PDF Download – NPN EPITAXIAL PLANAR TYPE(for RF power amplifiers on VHF band Mobile radio applications), 2SC data sheet.
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Bias set up according to specs with no issues. A transistor is a semiconductor device used to amplify and switch electronic signals and electrical power. Thanks for all the suggestions. 2zc1972 am pretty sure a have a spare pair. Hopefully at least ONE set will be genuine! I suspect the low HFE may be causing poor linearity or poor slow RF switching, thus resulting in the distorted tx audio.
I had a long chat with dataheet on the phone before buying them. The last thing I can come up with is Eleflow. Especially when the power control or mic gain is run low. Comfort Flexible options, including door to door transportation.
G4COEMay 26, Until I get this sorted I will never order from Eleflow again nor would I recommend them to anyone. Education equipment Industrial test tools Catalogues Laboratory measuring datasheer Measuring of environmental and ambient parameters Equipment for testing of medical equipment Calibration equipment Soldering equipment Telecommunication measuring equipment.
I can’t get replacements that I can rely on. G3YROMay 26, G4COEApr 27, Bipolar transistors are so named because their operation involves both electrons and holes. They may have unusually high hfe. It is composed of semiconductor material with at least three terminals for connection to an external circuit.
Register for a free QRZ account. The first batch I had from Eleflow worked just fine but not last lot.
I contacted Eleflow, I sent them pictures as requested and still waiting to hear from them ages ago, I Emailed several times! But I’ve seen that over the datashee with other Mitsubishi devices, such as the and devices. All 6 I received measure an HFE of 2.
2SC MITSU ORIGINAL
The bias pot was pretty much within spec ma before I performed the adjustment. Collector – Emitter Voltage Vceo. Telecommunication measuring equipment Cable and pipe tracing Cooper networks IT networks Optical networks Spectrum analysers more A known good “pull” 2SC I had lying around measures 45, which is close to the data sheet spec of “50 typical, 10 minimum”.
They list the transistor as being in their current datasueet list. They measured the hfe of the 2SCs so they send a matched pair – I see they do the same with 2SCs. They did not work. A gain of 2 sounds pretty bad to me, I would estimate a gain of around 30 might be typical on the best of devices, this could be the answer to the distortion at low power.
As I said my Eleflow devices these ddatasheet the hallmarks of fakes or very poor copies. It sounds just like when the bias is improperly set too low on an amplifier, yet I triple checked to make sure it is set correctly in this case.
2SC1972 View Datasheet(PDF) – MITSUBISHI ELECTRIC
Free technical support If something goes wrong, we will be ready and willing to help! Collector – Base Voltage Vcbo. KV6OMay 26, Region Macedonia Kosovo Global. All were within data sheet spec, but the s I received are all coming up low at around 2. That is just gotta be a logical answer Roger. NPN is one of the two types of ddatasheet transistors, consisting of a layer of P-doped semiconductor the “base” between two N-doped layers.
You must log in or sign up to reply here. Weazle66 is listed on their site as being an authorised distributer on E-Bay.
Anyway, I installed a pair into the TS Add to cart On stock. They were shipped back and I never got a refund, they claimed never received. Well, I ordered from two separate AliExpres vendors. So even though they look datashet in almost all aspects, I am now suspecting that they also may be knockoffs, albeit much better done than the Chinese AliExpress junk