The 2sc2078 is a silicon npn transistor in a to220 type case designed for use in high power output amplifier stages such. I got the idea for this transistor by searching the net and looking for a qrp amp using the 2sc2078 transistor. Sir, i need substitutereplacement transistor type conforming with the original transistor data. You entitled this thread 2sc2078 vs 2sc7, which to us implies that you have already done the troubleshooting work to isolate the problem to the driver and final section of the radio.
I have access to a 2sc1969 transistor that i would like to fit in place of the c2078 that i dont have. The 2sc2078 rf transistor can also be used to replace the obsolete 2sc2075 toshiba and 2sc2029 fujitsu rf transistors commonly used in many older amfm 27mhz cb transceivers. I have a gme electrophone black model tx830n 26mhz for new zealand legalities with a blown final transistor 2sc2078 due to a broken antenna. Equivalents of mpsa18 electronics forum circuits, projects.
Ive never tried it in a fidelity 2000 chassis but im informed that its commonly used to substitute for the various devices found. Semiconductor transistor, diode, ic cross reference. We also learnt that the junctions of the bipolar transistor can be biased in one of three different ways. Npn transistor tutorial the bipolar npn transistor.
The gain of the 2sc2078b will be in the range from 25 to 50, 2sc2078c ranges from 40 to 80, 2sc2078d ranges from 60 to 120, 2sc2078e ranges from 100 to 200. To220ab absolute maximum ratings at ta 25c item symbol ratings unit collectortobase voltage vcbo 80 v collectortoemitter voltage vceo 35 v emittertobase voltage vebo 5 v. Some strategies you might employ include working the substitution lists backwards. Tell us what part numbers you have onhand, or can easily get. Parameter collectortobase voltage collectortoemitter voltage emittertobase voltage collector current collector current pulse collector dissipation junction temperature storage temperature symbol vcbo vcer vebo ic icp pc. This is specifically used on the uk 2781 fm colt 295 and commtron chassis and many more. So the 2sd669a transistors dont exactly make a good substitute for the 2sc2078 but will function. The chart below gives equivalents to some of the main transistors used in cb radios. Description more info in stock package package qty. Inchange semiconductor isc product specification isc silicon npn power transistor 2sc2078 description collectoremitter voltage. Instead, a somewhat arbitrary coding system has grown up, where the device package carries a simple two or threecharacter id code. Mospec, alldatasheet, datasheet, datasheet search site for electronic. Best to add a small emitter resistor for each transistor, if you do this.
New routers and software address nextgen iot connectivity and 5g applications apr 22 2020, 2. May 26, 2014 iam currently using this transistor on 40m in a cobra 148 converted to 40m and i am getting around 3 to 5 watts rf power with a 2sc1973 driver driving it. Does anyone know if there is a higher power, dropin replacement for the 2sc 2078 transistor. Goliton 5pcslot 2sc2078 c2078 80v 3a to220 transistor. This product includes 5 transistors goliton is a registered trademark protected by the united states trademark law.
Dcdc converter provides 0 w of power at 96 percent efficiency. Power transistor5a,50v,15w, 2sc5706 datasheet, 2sc5706 circuit, 2sc5706 data sheet. Pc max ucb max uce max ueb max ic max ft max cctip pf hfe tj euro equivalent, usa equivalent, ussr equivalent, japan equivalent. The gain of the 2sc2078 will be in the range from 25 to 200, 2sc2078b ranges from 25 to 50, 2sc2078c ranges from 40 to 80, 2sc2078d ranges from 60 to 120. Nov 06, 2015 c5242 datasheet 15a 230v npn power amplifier toshiba, c5242 datasheet, c5242 pdf, c5242 pinout, equivalent, c5242 data, c5242 circuit, output, ic. Apr 28, 2014 download bipolar transistors database for free. Jun 25, 2018 smd devices are, by their very nature, too small to carry conventional semiconductor type numbers. Any and all sanyo products described or contained herein do not have specifications that can handle applications that require extremely high levels of. Sanyo, alldatasheet, datasheet, datasheet search site for electronic components and semiconductors, integrated circuits, diodes, triacs, and other semiconductors. This is one item of genuine see below for tests eleflow manufactured 2sc2078 rf output stage transistor intended for 27mhz 12v applications, such as cb radio output stages. Transistors are in stock with sameday shipping at mouser electronics from industry leading manufacturers. An npn n egative p ositive n egative type and a pnp the most commonly used transistor configuration is the npn transistor. The 2sc2078 is a silicon npn transistor in a to220 type case designed for use in high power output amplifier stages such as citizen band communications equipment. The 2sc2078 transistor might have a current gain anywhere between 25 and 200.
C5242 datasheet 15a 230v npn power amplifier toshiba. En462e npn epitaxial planar silicon transistor 2sc2078 27mhz rf power amplifier app. Download transistoramp software for the design of transistor. If you want to run automatically the next time add a.
Download ic database equivalent guide 100 thousand. Use the specification table below to search for similar products. Smd devices are, by their very nature, too small to carry conventional semiconductor type numbers. Transistor equivalent or substitute used for power amplifier. Emitter specifications absolute maximum ratings at ta 25. Mouser is an authorized distributor for many transistor manufacturers including diodes inc. En462e npn epitaxial planar silicon transistor 2sc2078 27mhz rf power amplifier applications package dimensions unit. Antique radio forums view topic replacing transistors. Transistor power gain voltage frequency mode case pin 123.
The 2sc2078e transistor might have a current gain anywhere between 100 and 200. Download ic database equivalent guide 100 thousand components toni april 17, 2017 april 4, 2012 datasheet, download ic software database dated 2003 with database information from more than 100,000 semiconductors such as transistors and integrated circuits. Once the transistor specifications and parameters have been ascertained, it is possible to check for other replacement transistor types with similar parameters that. Bipolar transistors database contain more than 46000 transistor data npn and pnp transistors. C parameter symbol conditions ratings unit collectortobase voltage. Iam currently using this transistor on 40m in a cobra 148 converted to 40m and i am getting around 3 to 5 watts rf power with a 2sc1973 driver driving it.
Choosing transistor replacements electronics notes. You listed the reasons you thought it was the final that was the culprit, but none of those steps included actually eliminating any of the other possibilities. Bipolar transistors database contain more than 46000 transistor. En462e 2sc2078 27mhz 2010c 2sc2078 o220ab sc46 2sc2078 2sc2078 amplifier 2sc2078 datasheet 2sc2078 transistor npn rf transistor rf power transistor npn 2sc2078 2sc207827mhz 2sc2078 abstract. This software is freeware and may be used commercially and privately for free. Ic3a applications 27mhz rf power amplifier applications absolute maximum ratingsta25. Datasheet archive mpsa18 cross reference equivalent xref pin compatible mpsa18 2sc mpsa18 2sc3112 mpsa18 bc184 mpsa18 bc4 mpsa18 bc414 mpsa18 bc550 mpsa18 bfs29 mpsa18 c mpsa18 ecg47.
In the previous tutorial we saw that the standard bipolar transistor or bjt, comes in two basic forms. May not be an exact mechanical or electrical equivalent. C5242 datasheet 15a 230v npn power amplifier toshiba, c5242 datasheet, c5242 pdf, c5242 pinout, equivalent, c5242 data, c5242 circuit, output, ic. 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. I understand that this is a dropin, but what else do i need to tweak.
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