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MPS6543 Transistor
My HP Q meter has a duff MPS6543 transistor.
Anyone have one or know where I can obtain one? Thanks, John G3UGY |
#2
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MPS6543 Transistor
Hi,
My HP Q meter has a duff MPS6543 transistor. Anyone have one or know where I can obtain one? According to the data sheet the MPS6543 isn't particularly unusual and you should be able to substitute if you don't find the real thing. Have a look here - http://www.datasheet4u.com/ It is a general-purpose, 350mW, 25V, UHF, silicon, NPN device with an FT of 750MHz, an HFE(min) of 25 and a Cob of 1.0pF in a TO-92 case with the emitter lead in the middle. Maplin have some transistors that might do in their High Frequency, Low Power NPN listing - possibly the BF199?. BTW, I saw your posting on the HP_Agilent Yahoo Group and meant to reply then but forgot. Cheers - Joe |
#3
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MPS6543 Transistor
My HP Q meter has a duff MPS6543 transistor.
Anyone have one or know where I can obtain one? ================================ According to Tower's International Transistor Selector , BF183 is equivalent to MPS6543. For BF183 you can check with Mode Components , www.modecomponents.co.uk Good Luck Frank GM0CSZ / KN6WH |
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