D38999/20FF11PCE | 11-Pin Series III PCB Mount Receptacle (Key E)
The D38999/20FF11PCE is a MIL-DTL-38999 Series III square flange receptacle with 11 pin PCB contacts. Features a size 19 shell, “F” electroless nickel finish, and specialized “E” polarization.
999999 in stock
Share:
Product Categories
Request a Quote
D38999/20FF11PCE PCB Integration and Board-Level Efficiency
The D38999/20FF11PCE is engineered for specialized electronic grids that require a direct, high-reliability connection between external cabling and internal printed circuit boards. Featuring fixed PC tail contacts, this receptacle is designed to be soldered directly onto a PCB, eliminating the need for internal wire harnesses and reducing overall system weight. The square flange (Type 20) mounting provides a robust four-point attachment to the equipment chassis, which isolates the delicate solder joints on the board from the mechanical stresses of mating and unmating. This streamlined architecture is essential for compact avionics modules and ruggedized industrial controllers where internal space is at a premium.
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 | E | threaded coupling |
19-11 Layout and Enhanced Contact Durability
Within the size 19 aluminum alloy shell, the D38999/20FF11PCE utilizes the 19-11 insert arrangement, providing eleven independent conductive paths. These Size 16 contacts are larger than standard signal pins, offering increased current-carrying capacity and superior mechanical strength. Each pin is precision-machined and finished with premium gold plating to ensure a low-resistance electrical path and maximum protection against atmospheric oxidation. The combination of larger contact surfaces and fixed board mounting makes this model a durable choice for power distribution and high-fidelity signal transmission within dense electronic stacks.
Specialized E-Keying for System Integrity
The “E” designation in the part number represents a specialized polarization keyway, providing a critical mechanical lockout feature for complex electronic grids. In environments where multiple size 19 connectors are installed on the same panel, the “E” keying ensures that only a matching “E” key plug can be engaged. This eliminates the risk of cross-mating different functional circuits—such as power lines and sensitive data paths—which could otherwise lead to system damage. This standardized indexing logic simplifies both assembly and field maintenance by providing an intuitive, physical safeguard against installation errors.
Environmental Hardening and Class F Shielding
As an “F” class component, the D38999/20FF11PCE features an electroless nickel finish over its high-strength aluminum shell. This conductive plating is vital for maintaining signal purity, as it provides a low-impedance ground path for effective EMI and RFI shielding. To withstand aggressive operational environments, the connector is equipped with high-resilience fluorosilicone interfacial seals and internal moisture barriers. These elements protect the 11-pole interface from humidity, dust ingress, and the rapid pressure changes encountered in unpressurized aerospace compartments, ensuring consistent performance in maritime or high-altitude conditions.
Mechanical Security and Scoop-Proof Protection
The D38999/20FF11PCE utilizes the signature Series III triple-start threaded coupling system, offering a self-locking mechanism that is highly resistant to extreme vibration and shock. The 100% scoop-proof shell design ensures that the eleven PCB pins are recessed deeply enough to prevent them from being bent or damaged if the mating plug is misaligned during the connection process. This mechanical safeguard, combined with the stability of the square flange mount, makes the D38999/20FF11PCE a future-proof interconnect solution for engineers developing ruggedized, high-performance electronic modules for global deployment.
FAQ
What are the advantages of Size 16 PCB contacts in this model?
What are the advantages of Size 16 PCB contacts in this model?
Size 16 contacts provide a higher current-carrying capacity than standard signal pins and offer a more robust mechanical connection for direct soldering to the printed circuit board.
Why is "E" keying used for the D38999/20FF11PCE?
Why is "E" keying used for the D38999/20FF11PCE?
“E” keying is a specialized polarization that prevents accidental cross-mating on panels where multiple connectors of the same shell size (Size 19) are used for different electrical functions.
Does the "F" finish provide both grounding and corrosion resistance?
Does the "F" finish provide both grounding and corrosion resistance?
Yes, electroless nickel (F) is highly conductive for superior EMI shielding and is also extremely durable, offering excellent protection against corrosion in aggressive environments.
How many pins are in the 19-11 arrangement?
How many pins are in the 19-11 arrangement?
The 19-11 arrangement features eleven individual pins, designed for a mix of power and robust signal transmission within a size 19 circular shell.
Is the D38999/20FF11PCE intermateable with any Series III plug?
Is the D38999/20FF11PCE intermateable with any Series III plug?
It is intermateable with any MIL-DTL-38999 Series III plug of shell size 19 and layout 11, provided the plug also features the matching “E” keyway polarization.
Certification
- 测试文件后期要删除换成你自己的
