UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post - Hot-carrier diodes. What became of them?

G0HZU_JMR · 24th Nov 2022, 3:50 pm

The modern 1N5711 diode is similar to the classic HP2800 diode. The 1N5711 is available in axial glass or SMD packages and they are cheap to buy. It's the other ones in the HP28xx series that are harder to find now.

I still have a sample bag of 250 of the original HP2800 diodes here. See the HP parts bag below. I've been slowly using them up over the years. I try and use the modern 1N5711 diodes whenever I can. This way I can keep a few of the original 2800 diodes.

When Avago/Broadcom announced that they were going to stop making diodes I bought up quite a few of each type in single, dual and quad in the various 70V, 15V and 4V flavours.

There are still some low voltage, low capacitance alternatives in the BAT series from Infineon. Eg BAT17.

24th Nov 2022, 3:50 pm	#3
G0HZU_JMR Dekatron Join Date: Sep 2010 Location: Cheltenham, Gloucestershire, UK. Posts: 3,077	Re: Hot-carrier diodes. What became of them? The modern 1N5711 diode is similar to the classic HP2800 diode. The 1N5711 is available in axial glass or SMD packages and they are cheap to buy. It's the other ones in the HP28xx series that are harder to find now. I still have a sample bag of 250 of the original HP2800 diodes here. See the HP parts bag below. I've been slowly using them up over the years. I try and use the modern 1N5711 diodes whenever I can. This way I can keep a few of the original 2800 diodes. When Avago/Broadcom announced that they were going to stop making diodes I bought up quite a few of each type in single, dual and quad in the various 70V, 15V and 4V flavours. There are still some low voltage, low capacitance alternatives in the BAT series from Infineon. Eg BAT17. Attached Thumbnails __________________ Regards, Jeremy G0HZU