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T3-4120-10P Datasheet(PDF) 4 Page - Amphenol Corporation |
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T3-4120-10P Datasheet(HTML) 4 Page - Amphenol Corporation |
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4 / 39 page  2 MIL-C-26500 Connectors features Amphenol®/Pyle® MIL-C-26500 Connectors are qualified to Mil- itary Specification MIL-C-26500, as well as numerous high per- formance customer specifications. As the chart below indicates, these connectors are available with aluminum or stainless steel shells – bayonet or threaded – and are qualified to meet the specifications of these MIL-C-26500 classes: Crimp Contacts Rear insertable, front releasable, crimp style contacts are machined from a copper alloy material, plated gold over nickel, and are qualified to specification MIL-C-39029. Contacts are crimp terminated outside the connector assembly and inserted into the appropriate cavity by means of a hand tool. Socket contacts utilize a multi-tined construction and feature a “C” spring which grips the tines, and thus insures consistent and repetitive insertion/withdrawal forces. Contact tines are protected by a stainless steel shroud. An optional pencil-clip thermocouple socket design is also offered. See page 27 for more information on thermocouple contacts. Alternate Keying All MIL-C-26500 Series Connectors with aluminum and stain- less steel hardware, can be furnished with normal or any of five alternate key positions. (See page 4). Each plug shell has a master key and four alternate keys. The position of the alternate keys in relation to the fixed master key determines the key identification. Inserts are bonded to the shell in relation to the master key, thus allowing positive protec- tion against mismating when differing circuits exist side by side. MIL-C-26500 Classes Amphenol/ Pyle Series Classes Hardware Description Finish Class R: (Environmental Resistant) A Aluminum Alloy Anodize Class G M Aluminum Alloy Chromium Class E R Stainless Steel Passivated Class K Firewall FPK/FYL Stainless Steel Passivated Class H Hermetic HC CRS/Stainless Steel Various Connector Sealing The insert design utilizes a combination of resilient and rigid insulators to offer a connector with total sealing capabilities. Bonded interfaces between the resilient and rigid dielectric components eliminate air voids and thus protect the connector from potential degradation due to moisture and altitude condi- tions. In Firewall Class K connectors the resilient insert forms the pri- mary contact seal and is bonded to a molded ceramic rigid insert. The insert assembly is physically bonded and mechani- cally retained to the inside surface of the stainless steel shell, providing a voidless, monoblock configuration impervious to adverse environments. A pressure seal at the connector interface is accomplished through the aid of a coupling device which compresses the front resilient insulations and thus offers a seal around each contact which prevents the passage of air or moisture through the con- tact cavity. Back resilient insulators are designed with a triple sealing grip at each wire hole to offer positive sealing and pre- vent wicking of moisture through the connector without the use of external clamping rings or adapters. In addition, a dynamic “O” ring seal engages the front of the plug shell when connectors are mated and offers yet another barrier to moisture and containments. Fluid/Temperature Resistance The fluorosilicone compound elastomer, developed by Pyle- National, exceeds all specification requirements and provides excellent resistance to tear, compression set, fluids, and high temperatures. Amphenol/Pyle’s fluorosilicone compound offered in Class R, G, E and K is capable of reliability resisting MIL-H-5606 hydrau- lic fluid and MIL-L-9236 lubricating oil; as well as MIL-L-7808 and MIL-L-23699 lubricating oils, MIL-J-5624 (JP-5) jet fuel, gly- col, and alkaline cleaning solutions of pH 10 or higher. Test methods are as defined in MIL-C-26500 specification. Alternate compounds have been developed by Pyle-National to solve unique user requirements not addressed by the specifications. Connectors have the capability of resisting high ambient tem- peratures up to 200°C (392°F) for long periods of time, thus contributing to an extended connector life. Connectors will with- stand a combined ambient and internal temperature due to thermal rise of current carrying capacity of 238°C (469°F). Amphenol®/Pyle® Firewall, Class K, connectors have the inher- ent ability to resist high temperatures up to 460°F (total temper- ature) for extended periods of time and can resist short time exposures (20 minutes) to prevent passage of a direct 2000°F flame. |
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