Pressure-tolerant electronics (PTE) are electronic components or assemblies that can operate satisfactorily under high pressure (hyperbaric or hydrostatic, such as oil baths), without the need of a high pressure enclosure.
Typical uses include in submarines and oil wells.
Components
Component PTE non-PTE Connectors All None Resistors Carbon film, metal film, wire wound, tin oxide Carbon comp. Capacitors Ceramic, film, solid tantalum Aluminum electrolytic, wet-slug tantalum, paper Relays and contactors Open (operation is significantly slower) Sealed Semiconductors Epoxy enclosed Metal can Crystals - Surface mount or metal can Resonators Surface mount or epoxy coated -
References