The meaning of the Acronym PNPN is...

PNPN is

• Positive-Negative-Positive-Negative transistor (a switch)

More Meanings For PNPN:

• Positive-Negative-Positive-Negative (transistor)
• Positive-Negative-Positive-Negative transistor (a switch)

PNPN is also in:

• Electronics
• Hardware