RF Power Transisters - Cross Reference Part#'s

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fineshot1
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RF Power Transisters - Cross Reference Part#'s

Post by fineshot1 »

I have some Motorola RF MOSFET Power Transisters in I beleive the AT style package and need a modern or any cross reference part number
other than what is shown below.

I have searched with google until I have been google eyed and found nothing on them. If anyone has an older cross reference books that
reveal any other info I would appreciate a response. These all have late 1980's and early 1990's date codes on them. See list below

Motorola Part Number / Part Number on Device
48-869850 / M9850
48-84411L04 / M1104
48-84411L08 / M1108
48-80225C11 / M2511
None / M9738
Last edited by fineshot1 on Thu Mar 26, 2009 4:25 am, edited 1 time in total.
fineshot1
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kf4sqb
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Re: RF Power Transisters - Cross Reference Part#'s

Post by kf4sqb »

If I'm not badly mistaken, all those numbers are internal Motorola numbers, not industry-standard numbers, and won't cross via "regular" means. Are these loose parts you have, or are they in a piece of equipment? If in a piece of equipment, someone may be able to help you by having some info on the equipment.
brett "dot" kitchens "at" marel "dot" com



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DJP126
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Re: RF Power Transisters - Cross Reference Part#'s

Post by DJP126 »

kf4sqb wrote:If I'm not badly mistaken, all those numbers are internal Motorola numbers, not industry-standard numbers, and won't cross via "regular" means.
You are correct about those numbers. The last one would be 48 00869738.
Dave
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fineshot1
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Re: RF Power Transisters - Cross Reference Part#'s

Post by fineshot1 »

kf4sqb wrote:If I'm not badly mistaken, all those numbers are internal Motorola numbers, not industry-standard numbers, and won't cross via "regular" means. Are these loose parts you have, or are they in a piece of equipment? If in a piece of equipment, someone may be able to help you by having some info on the equipment.
Well - I could be wrong but it was my impression that the second number(Mxxxx) was the industry number which could be cross referenced.
I remember back in those days(and its probably the same today) that there was always the major device suppliers and then there were the
series of other manufactures which made the clone of each device and the specs were always either the same or so close the difference was
not worth taking into consideration.

BTW - these are loose parts (given to me by another tech) and I am trying to get the specs on them because I have some equipment with
the same package style devices and I am trying to determine if I can keep them for spares. This is to keep legacy equipment running if
the smoke leaks out. :)
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Re: RF Power Transisters - Cross Reference Part#'s

Post by kf4sqb »

Sorry, but those still aren't industry-standard numbers. Most industry-standard numbers will have prefixes like, "2SC", "2N", "MRF", "TP", etc. I would have to think that your best bet would be someone with a MOL account. They might be able to look up what equipment they go in.
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jackhackett
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Re: RF Power Transisters - Cross Reference Part#'s

Post by jackhackett »

I recognize at least one number there... M1104 is the PA final for a 146-174MHz 25-45W GM300, also used in similar band/power Maxtrac and maybe some other models.
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Re: RF Power Transisters - Cross Reference Part#'s

Post by chartofmaryland »

I don't know on some but the M1104 is useful in older equipment,

Are you looking to rid yourself of some?

CoM
If the lights are out when you leave the station and then come on the second you key up, you know you have enough power.
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Re: RF Power Transisters - Cross Reference Part#'s

Post by fineshot1 »

chartofmaryland wrote:I don't know on some but the M1104 is useful in older equipment,

Are you looking to rid yourself of some?

CoM
Sorry but that is the same reason I am looking to keep them. Just need more data on the
rest of them. Thanks for the M1104 info.
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Re: RF Power Transisters - Cross Reference Part#'s

Post by chartofmaryland »

Well,

I had to ask, but those are for Micor finals and others of the variety. I can look more as I have a model cross reference manual for the 1 replacement catalog motorola put out when these radios were hot so they could stop carrying so many types.

CoM
If the lights are out when you leave the station and then come on the second you key up, you know you have enough power.
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