I am trying to fix a circuit and have come across a group of axial capacitors with markings that I have had no luck deciphering. As best as I can tell, they are marked "BC 050" which doesn't follow any marking scheme I have been able to find.

They appear to go from pins on an IC to ground, if that helps.

Here is a photo:

Update: The IC is MC68HC705JJ7, 20 pin DIP. The capacitors are connected to pins 1-4:

Pin 1: PB1/AN1 (IC side of capacitor has a parallel connection to a terminal for an external signal input)

Pin 2: PB2/AN2 (Appears to be nothing else on IC side)

Pin 3: PB3/AN3/TCAP (IC side has a parallel connection to a potentiometer)

Pin 4: PB4/AN4/TCMP/CMP1 (IC side is pretty busy, but appears to connect (through 2 series resistors) to an oscillator, and also pin 7 (non-inverting output) on a LM2904N amplifier.)