Product Overview
Pasternack PE4049 Hermetically Sealed 50-Ohm Coaxial RF Panel Jack
Condition
Unused new old stock (NOS). Solder turret terminal with glass-to-metal hermetic seal. Markings legible: PASTERNACK PE4049. Complete with hex mounting nut, external-tooth lock washer, and silicone sealing ring. Sold each.
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Product Overview
Pasternack PE4049 provides a 50-ohm coaxial interface engineered for vacuum chambers, pressurized instrumentation, and environmental enclosures requiring hermetic isolation. Featuring a threaded D-flat bulkhead body and a glass-bead sealed center contact, it delivers reliable RF performance from DC to 2 GHz while blocking gas and moisture migration.
Key Features
- 50-ohm BNC female (jack) coaxial interface
- Hermetic glass-to-metal seal with silicone panel O-ring gasket
- Operating frequency range from DC to 2 GHz with 1.5:1 max VSWR
- 500 Vrms RF working voltage rating
- D-flat threaded barrel designed for standard 0.480-inch (12.19 mm) D-hole panel cutouts
- Solder turret eyelet rear terminal for point-to-point center conductor attachment
- Nickel-plated brass body with gold-plated brass contact and PTFE dielectric
- Includes panel mounting hex nut, external star lock washer, and elastomer O-ring
Applications
- Sealing RF feedthroughs on vacuum chambers, glove boxes, or environmental test enclosures.
- Installing front-panel coaxial inputs on custom amateur radio gear, transmitters, or test benches.
- Upgrading laboratory instrumentation panels to isolate sensitive internal electronics from ambient humidity.
Frequently Asked Questions
What mounting cutout is required for the bulkhead body?
The connector body features a D-flat barrel designed for a standard 0.480-inch (12.19 mm) D-hole cutout, which prevents the jack from rotating when torquing the rear hex nut.
What provides the hermetic barrier on this connector?
Hermetic isolation is achieved through an internal glass-to-metal bead sealing the center contact inside the body, paired with the external silicone O-ring gasket that seals against the mounting panel face.
What wire termination method does the rear terminal require?
The rear terminal is a solid solder turret with an eyelet hole, designed for direct hand-soldered point-to-point wiring or center-conductor lead attachment rather than a crimp ferrule.
Nothing tests a panel feedthrough quite like a vacuum pull or an enclosure seal that cannot afford to leak. Solder your lead, torque the hex nut, and run your signal across the boundary without giving up the seal.
