Greetings from Cajah’s Mt. ????…
SO… it’s been a slow, rainy night here in paradise…
I was sorting thru a bucket of parts that I had pulled from various defunct electronic devices, and I came across these rascals. I hadn’t seen anything like them before and I am curious about just what I got here.

kinda reminds me of really tiny fishing bobbers… or mebbe frag grenades for my old GI JOE action figures… ????
The first two from the left are marked: BYV27-200,
while the little guy on the right is marked: BYV26C PH.
Since they seem to be marked for polarity (dark areas on one end) I thought they might be some variety of diode, so, I checked them with the meter and they all showed a voltage of around 0.485 volts when hooked up (-) lead to the dark area. When I switched polarity, the readings were all (.0L).
Not real critical to life as we know it, but,
If anyone feels like jumping in on this, I would appreciate it.
I’m just curious about things I’m not familiar with and like to learn about them when I can.
Thanx, y’all…????