I am looking for an equivalent in a SOT32/TO126 outline of the ZETEX complementary transistors FZT753/FZT653 (SOT223) resp. ZTX753/ZTX653 (TO92 E-Line) for mounting on a heat sink.
A Vce of 45VDC is enough.
The application is a MC pre-pre which work with +/-15VDC (Linn Linto, LK-1 Kairn).
I will change the genuine condition of the MC pre-pre section in the LK-1 because PCB is burned in this area.
Additional mounting brackets for the TO126 transistors on the LK-1 enclosure - go to
Montagewinkel, 90deg mit 3 Lochern A4 | OBO
should eliminate the issue of overheating PCB.
Maybe BD135/136 or BD139/140 is a good choice ?
Thank you for an advice.
A Vce of 45VDC is enough.
The application is a MC pre-pre which work with +/-15VDC (Linn Linto, LK-1 Kairn).
I will change the genuine condition of the MC pre-pre section in the LK-1 because PCB is burned in this area.
Additional mounting brackets for the TO126 transistors on the LK-1 enclosure - go to
Montagewinkel, 90deg mit 3 Lochern A4 | OBO
should eliminate the issue of overheating PCB.
Maybe BD135/136 or BD139/140 is a good choice ?
Thank you for an advice.
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Are you wanting those devices for their very low voltage noise? You won't easily find a replacement with such low voltage noise. How much power have you run through them? I thought 10mA was fine for these to perform, at 15V that's only 150mW. E-line packages are designed with a large flat side specifically for mounting against a heatsink with a spring clip IIRC.
Trying to build clone of an amp that uses these for vas and pre driver to the pout TIP3055 / 2955
