RCA 1C03 and 1C04 TO220 transistor data

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On Fri, 20 Jun 2008 12:46:24 +0100, "N_Cook" put finger to keyboard and composed:

Not exactly what you're after ...

- Franc Zabkar

You'll find more info prefixing the numbers properly; ie RCA1C03, RCA1C04, ETC.

I can forward data sheets from the RCA 1977 Power Devices data book, if you're specific about devices of interest.

For just straight one-line data summaries, check out 'Tehnomagazin'

This combines un-proofread data, stripped from TDTowers publications and some DATA catalogs.... and is, in turn, currently mined by a number of 'data-sheet server' web services.

RL

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The RCA prefix was what I needed, thanks

then eg

If anyone knows, presumably generically for RCA, what the C suffix (plus other letters ?) mean would be useful for the archives of this thread, presumably post production voltage bin ranges.

I've also saved

I should have said my RCA transistor, thyristor & diode databook is 1969 (fallen apart and water/insect damaged but still useful)

-- Diverse Devices, Southampton, England electronic hints and repair briefs , schematics/manuals list on

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Other RCA, like RCA29 and RCA30 with suffix letters are like TI and A = 1.5 times basic non-suffix Vcb max B = x2 C= x2.5

I cannot believe a 1C03 - C is 2.5 x 120V = 300 volt rating in a circuit with rails + and -33 volt

-- Diverse Devices, Southampton, England electronic hints and repair briefs , schematics/manuals list on

Nigel,

From page 486 in the 1981 RCA Power Devices data book in my library:

"Silicon Transistors for Audio-Frequency Linear-Amplifier Applications"

RCA1C03 (NPN): V(CBO) 120V V(CEO) 100V I(C) 4 amps P(T) is 40 Watts with CASE temp at 25 decrees C. F(T) 4 MHz h(FE) 50-250

The RCA1C04 is the PNP compliment, specs the same except F(T)=5 MHz

The RCA1C012 (and compliment RCA1C013) are the same except the V(CBO)=140V and the V(CEO)=120V. (They list these with and without the '0' on the same page, so they might be called RCA1C12 and RCA1C13)

If you need the more detailed specs, let me know.

Regards, Tim Schwartz Bristol Electronics

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Any reference to what the suffix C means in RCA1C03-C

Vcb max of 120V times 2.5 = 300 volt seems unlikely

The letter suffixes of TIPxx devices signify voltage groups, increasing by 20V VCEO in each range, not a multiplier of a base voltage rating. The RCAxx corresponding devices follow the same TIPxx convention, to directly substitute for the TIP parts.

RCA1Axx, RCA1Bxx and RCA1Cxx devices, if given a dash suffix, are more likely being graded for HFE, as voltage grading is already signified by the xx part of the device ident. The gain group may be important in matching quiescent bias loss of paralleled output drivers.

Grading parts for VCBO is pointless when dealing with linear audio devices, as VCEO or VCES, SOArea and Rthjc will determine their ruggedness in non-switching circuits driving reactive loads or single faults. VCEO is always equal to, or less than VCBO.

The RCA house number data sheets refer to JEDEC part numbers for device curves and test conditions.

RL

What model HH and where are these 1C parts used in it ?

Graham

Nigel,

There is no reference to any suffix on the data sheet I have. (I can fax you a copy if you e-mail me with a fax number.) Also, I'm not aware that RCA ever used a 'multiplier'. Texas Instruments did on some devices (like the TIP-31/31A/31B/31C) but I'm not aware that the suffix was a multiplier. The data sheet always listed the specific voltage for each version.

Regards, Tim Schwartz Bristol Electronics

Oh, I've got one of those (with thr 70W amp design that WEM used) albeit in slightly less abused condition.

HH were well known for using 'house numbers'. The HH output transistors in certain models for ages were simply Motorola darlington power devices in TO-3 with an HH house mark.

Graham

Totally agreed, and from 'binning' experiences I know those numbers can be VERY tight too. Yield drops off dramatically at the higher end (NOT my design I'll add).

Graham

Off the top of my head approx = to BDX 33/34C IIRC.

Power output stage driver transistors ?

Graham

Could even be current gain, the Japs do that (GReen ORange BLue etc.. OR selected higher device voltage in which case you need BDX33/34D (like gold dust).

Graham