PT02E12-3P | 3-Pin MIL-DTL-26482 Series I Box Mount Receptacle (Size 12)
The PT02E12-3P is a size 12 MIL-DTL-26482 Series I box mount receptacle with 3 pin contacts. Features “E” class environmental sealing and a rugged olive drab cadmium finish.
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PT02E12-3P Efficiency of Power Distribution in Fixed Electronic Grids
The PT02E12-3P is a high-precision interconnect solution specifically designed for specialized electronic grids that require a dependable power or signal interface through a permanent panel mounting point. Utilizing the size 12 aluminum alloy shell, this box mount receptacle facilitates three independent conductive paths through its 12-3 insert arrangement. This layout is highly valued in tactical power supplies and motor control units where three Size 16 contacts provide the necessary capacity for higher current loads compared to standard signal pins. By offering a stable, flush-mounted profile on equipment chassis, the PT02E12-3P ensures a streamlined mechanical design while maintaining a high level of electrical integrity for critical energy interfaces.
Key Specifications
Shell Material | Voltage Rating | Current Rating | Operating Temp | Ingress Protection | Mating Cycles | Keying & Polarization | Coupling |
|---|---|---|---|---|---|---|---|
Aluminum alloy | ~1000 VAC | ~23 A | -65 °C to +200 °C | IP67 | 500 | N | quick bayonet coupling |
Tactical Environmental Defense and E-Class Sealing
The “E” class designation of the PT02E12-3P signifies an environmentally resistant construction that incorporates an advanced interfacial seal and a high-performance dielectric insert. This internal sealing grid is engineered to prevent the ingress of humidity, fine particulates, and chemical vapors, ensuring that the three conductive channels remain isolated from harsh atmospheric contaminants. The aluminum housing is treated with olive drab cadmium plating over an electroless nickel underplate, providing a certified multi-layered defense against corrosion. This level of protection is essential for ground-based tactical units and industrial machinery where long-term exposure to moisture and environmental stress is a standard operational condition.
Rapid Bayonet Coupling and Mechanical Reliability
As a MIL-DTL-26482 Series I component, the PT02E12-3P utilizes a three-point bayonet coupling system for rapid and secure mating with a compatible plug. This design allows for a quick-disconnect interface that can be fully engaged or disengaged with only a partial turn of the coupling nut, providing tactile and audible confirmation of a verified lock. The bayonet mechanism is inherently resistant to self-decoupling even in high-vibration environments, making it a superior choice for vehicle-mounted instrumentation and mobile power distribution grids. This mechanical stability ensures constant electrical continuity for the three conductive lines, even under severe harmonic stress and physical shock.
Precision Pin Fidelity and 12-3 Layout Performance
Within the size 12 housing, the PT02E12-3P employs three Size 16 pin contacts, offering a reliable interface for both AC and DC power transmission as well as low-frequency signals. These pins are precision-machined from copper alloy and finished with high-grade gold plating to maintain an ultra-low-resistance electrical path throughout the equipment’s operational life. The gold plating protects the contact surfaces from oxidation and environmental degradation, ensuring purity for sensitive command loops and power feeds. The high-performance dielectric insert provides exceptional insulation resistance between the three channels, preventing electrical leakage and ensuring safety in mission-critical grids.
Structural Robustness and Shielding Effectiveness
The mechanical reliability of the PT02E12-3P is supported by its rigid aluminum shell and the standardized four-hole square flange mounting pattern. This configuration provides a solid mechanical bond between the receptacle and the equipment bulkhead, ensuring that the physical stresses of frequent mating cycles are not transferred to sensitive internal electronics. Furthermore, the conductive nature of the cadmium-plated shell provides essential EMI and RFI shielding, protecting the three conductive lines from external electromagnetic interference. This combination of physical durability and electrical isolation makes the PT02E12-3P a dependable choice for ruggedized digital environments where long-term power and signal reliability are paramount.
FAQ
How many signal channels does the PT02E12-3P support?
How many signal channels does the PT02E12-3P support?
The 12-3 layout provides three independent conductive channels using Size 16 pin contacts, which are capable of handling higher current than standard signal-grade pins.
What mounting style does the PT02E12-3P use?
What mounting style does the PT02E12-3P use?
This is a box mount receptacle featuring a four-hole square flange for permanent attachment to a flat panel, chassis, or junction box bulkhead.
What does the "E" class rating signify for this connector?
What does the "E" class rating signify for this connector?
The “E” class signifies environmental resistance, indicating that the connector includes internal seals to protect the electrical interface against moisture, dust, and other contaminants.
Is this receptacle compatible with other MIL-DTL-26482 brands?
Is this receptacle compatible with other MIL-DTL-26482 brands?
Yes, it is designed to mate with any MIL-DTL-26482 Series I socket plug of the same shell size (12) and layout (3), provided it utilizes the standard bayonet coupling system.
What finish is applied for corrosion protection?
What finish is applied for corrosion protection?
The shell features a standard olive drab cadmium finish over electroless nickel, providing excellent corrosion protection and shell-to-shell conductivity for EMI shielding.
Certification
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