1An external transistor used to provide additional current capacity for an electronic circuit.
2A type of metal-oxide-semiconductor (MOS) field-effect transistor used in integrated logic circuits where input signals may be applied not only to the gate but also to the source and/or drain.
Origin
1960s.
Definition of pass transistor in US English:
pass transistor
noun
Electronics
1An external transistor used to provide additional current capacity for an electronic circuit.
2A type of metal-oxide-semiconductor (MOS) field-effect transistor used in integrated logic circuits where input signals may be applied not only to the gate but also to the source and/or drain.