8 Apr
2012
8 Apr
'12
3:16 p.m.
On Apr 8, 2012, at 5:15 PM, Pete Turnbull wrote:
On 08/04/2012 21:34, Rob Jarratt wrote:
The only modification I'd make to the above statement is that some
of the earlier TIP devices (I'm specifically thinking of TIP41/42,
but there may be others) have revisions attached that do affect
their parameters. In the case of the TIP41/42 (NPN and PNP devices
with similar parameters for complementary pairs), TIP41A has a max
Vce of 60V while TIP41C has 100V (and, as you'd expect, TIP41B has
80V). The max Ic is the same (6A) across the family.
But yes, what you're seeing looks like a date code.
- Dave
Are they all likely to be similar enough not to
matter? Or should I be
looking for a closer match? Not that I know what a closer match would be.
No, a TIP125 is a TIP125. Any manufacturer's version will meet the same minimum
specs, or else they'd call it something else. I'd guess the 8702 on the Texas
ones is a date code (week 2 1987).