At the cb 11 meter freqs of 27 mhz most rate it at 90 watts. Asi supplies a replacement line of sd transistors currently made or obsoleted by sgsstm. Hg rf power transistor sd1446 semiconductors hg rohs compliance,silicon npn power. Transistor npn silicon 36v ic6a po50w cb and rf power output in stock. I have replaced all four of my mrf455 with the sd1446s with great results, and i am very. As this book contains many thousands of transistors, it has. Irf520p to220 nchannel power mosfet rf final and en369dr companion part. Select a replacement transistor with equivalent ft. The sd1446 is a perfect replacement for the mrf455 transistors. Npn planar transistor designed primarily for land mobile transmitter applications. Nte is a company that specializes in cross referenced parts.
Pin connection branding sd1446 order code sd1446 absolute maximum ratingstcase 25c symbol parameter value unit vcbo collector. Stmicroelectronics sd1446 bjt transistor for sale online ebay. Sd1446 rfvhfuhf transistor st casem1 free shipping. Singleline tvs diode for esd protection in portable electronics sod323 sd 12c. Well help you to work out whether its worth paying extra for a highend version or whether youre getting just as. The sd1446 is rated for 70 watts pep output power at 12. The dei sd1446 is designed to be equivalent to other brands of sd1446 transistors. Also they can dissipate more heat, even though they run hotter than 1446s. Is there anything available to see if a particular transistor can be replaced with a different one. Silicon npn triple diffused type pct process transistor, c5353 pdf download toshiba, c5353 datasheet pdf, pinouts, data sheet, equivalent, schematic, cross.
Aug 25, 2011 crossreferences are not magic, understanding of the circuit and a parametric search of the important parameters is much more reliable. Well help you to work out whether its worth paying extra for a highend version or whether youre getting just as good a deal by getting the cheaper item. Rf power bipolar transistors uhf mobile applications. Erf2030 is a 25 watt transistor therefore it is not just a replacement but also an upgrade to based on. Transistor uses, transistor rules, common emitter circuit, small signal amplification, fieldeffect transistors, jfet operating regions. This device utilizes diffused emitter resistors to withstand. This device utilizes emitter ballasting and is extremely stable and capable of withstanding high vswr under rated operating conditions. Hg rf power transistor sd1446 semiconductors hg rohs compliance,silicon npn power transistor d description 1. Sd1446 transistor datasheet pdf, sd1446 equivalent. This page contains list of freely available ebooks, online textbooks and tutorials in transistor circuits. Free packages are available maximum ratings rating symbol value unit collector. There are books galore on this but surely someone knows of a site that has them listed and searchable my query is a simple one i have no 2n5551 transistors on hand and i want to see if one in my box will do the job.
Theses sd transistors cover a full range of hf, vhf, uhf avionics and microwave. Free transistor circuits books download ebooks online textbooks. Transistor npn silicon 36v ic6a po50w cb and rf power output. Silicon npn triple diffused type pct process transistor, c5353 pdf download toshiba, c5353 datasheet pdf, pinouts, data sheet, equivalent, schematic, cross reference, obsolete, circuits. You have clicked a page that seems to be very popular. Sd1426 transistor, sd1077 transistor, sd1295 transistor, sd1212 transistor, sd1562 transistor, sd1526 transistor, sd1424 transistor, sd1452 transistor, sd1451. Toshiba, alldatasheet, datasheet, datasheet search site for electronic components and semiconductors, integrated circuits, diodes, triacs, and other semiconductors. Buy international transistor equivalents guide bernard babani publishing radio and electronics books by michaels, adrian isbn.
Tpv3100 2sc2897 macom tp3034 sd93 tp9383 tp3008 transistor 2sc636 mrf255 equivalent. Crossreferences are not magic, understanding of the circuit and a parametric search of the important parameters is much more reliable. Mounting procedures for very high power rf transistors. The dei sd1446 silicon nan radio frequency power transistor is primarily designed for 50 mhz class c power amplifier and land mobile transmitter applications. This device utilizes emitter ballasting and is extremely stable and capable of withstanding high vswr under operating conditions. With out knowing what and ware your are using it, you should choose a similar part. If you decide you do not want a replacement, the item can be returned under our standard return policy. Others, transistor substitution data book 1993, scan, pdf. Dei sd1446 70w silicon npn rf power transistor 50mhz. Mosfet amplifier circuit using an enhancement mosfet. Check our section of free ebooks and guides on transistor circuits now. Is there any webbased or stand alone program to do such service for transistors and ics.
Sd336 datasheet, equivalent, cross reference search. Emitter voltage bc237 bc239 vceo 45 25 vdc collector. The shared end is called the base and the other 2 ends are called the emitter and collector. The emitter sends a current out into the circuit, but only. Browse digikeys inventory of npn rf transistorsnpn. Everyday low prices and free delivery on eligible orders. A transistor is basically 2 diodes that share one end. I during 80s and 90s, i used to search for components equivalents in books.
If a mica insulation is used, the thermal resistance of the mica washer must be added, which amounts to about 0. Jun 25, 2018 smd devices are, by their very nature, too small to carry conventional semiconductor type numbers. Sd1451 nte equivalent nte318 npn rf output transis. International transistor equivalents guide bernard babani. Texas instruments transistor and diode databook 1st ed 1973 datasheets for diodes from 1n251 on and transistors from 2n117 on acrobat 7 pdf 34. For the best answers, search on this site mosfets are a type of transistor but they dont function like a bijunction transistor, like the 2n3055.
Sought the web for a replacement and a firm in the usa specced the. Bc237, bc237b, bc237c, bc239c amplifier transistors. Sd1446 rf power bipolar transistors uhf mobile applications features summary 50 mhz, sd1446 is a 12. Apr 05, 2008 i during 80s and 90s, i used to search for components equivalents in books. Formation of barrier at the completion of the alloying process, atomic activity takes place at the junction figure 4 as fol lows. It is necessary to ensure that the replacement transistor will be able to operate at the relevant frequencies, so a similar or slightly higher ft is advisable. Pricing and availability on millions of electronic components from digikey. Jul 29, 2019 a transistor is basically 2 diodes that share one end. Hg semiconductors hg rf power transistor sd1446 rohs compliance. Dont go for a transistor with a much higher ft as this may increase the risk of oscillation. A donor electron leaves an antimony atom, crosses the barrier, and unites with a hole generated by. Base q c silicon npn planar transistor designed primarily 4.
Sd1127 rf transistor npn 18v 640ma 175mhz 8w through hole to39 from microsemi corporation. Bc237, bc237b, bc237c, bc239c amplifier transistors npn silicon features pb. A click on a product type takes you to the corresponding product information page on the nxp website. For sd1446 price, delivery, and datasheet, see the part table below. Smd devices are, by their very nature, too small to carry conventional semiconductor type numbers. Description more info in stock package package qty. Directions for determining the thermal resistance rths for cooling fins can be found on page 11. Sd1446 datasheet, equivalent, cross reference search. Alibaba manufacturer directory suppliers, manufacturers. Choosing transistor replacements electronics notes. Nov 30, 2015 transistor gain drops with increasing frequency.
An common source mosfet amplifier is to be constructed using a nchannel emosfet which has a conduction parameter of 50mav 2 and a threshold voltage of 2. If youre still in two minds about sd1446 rf transistor and are thinking about choosing a similar product, aliexpress is a great place to compare prices and sellers. World transistor equivalents data az by eca author 4. However, it is important to note that the 70 watts output advertised is based upon the 50 mhz of the only data sheet provided. Transistor diode cross reference sphere research corporation. Sd1127 microsemi corporation discrete semiconductor. Details about 1pcs used sd1446 sd 1446 power transistor m1 ic chips replacement. Discrete semiconductors selection guide 2010 products for general applications bene.
The collector accepts an input current from the circuit, but it cant send the current through the transistor until allowed to by the base. So called equivalent parts, or nte replacements, may not work at all in some cases, because they were worse in some spec, or the circuit was designed with the assumptions that the part had a fairly low bandwidth. Silicon npn triple diffused mesa type, 2sd1428 datasheet, 2sd1428 circuit, 2sd1428 data sheet. Instead, a somewhat arbitrary coding system has grown up, where the device package carries a simple two or threecharacter id code.
Also they can dissipate more heat, even though they run hotter than 1446 s. This application note discusses the conse quences of driving eclinps devices with an. Features, specifications, alternative product, product training modules, and datasheets are all available. Emitter voltage bc237 bc239 vces 50 30 vdc collector. Second book of transistor equivalents american radio history. Buy sd1446 rf transistor and get free shipping on aliexpress. Sd1076 pt8811 mrf245 rf transistor s1012 pt8828 sd1076 pt8710 pt9780 transistor pt4544 text. Rf and microwave transistors vhfuhf applications sd 1463 sd1468.
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