HIGH-PERFORMANCE MINIATURE CONNECTOR PERFECT FOR AEROSPACE APPLICATIONS
Amphenol’s MB MIL-DTL-26482 series II (Matrix®) miniature cylindrical connectors have a quick-mating, three-point bayonet coupling system. Given their small size and high-quality contact retention and seal, MB series connectors are excellent for high-reliability applications in the harshest conditions, including the aerospace industry. These connectors intermate with all MIL-DTL-26482 series I connectors. Space-rated Class G outgassing is available in 48 hours. For full product details on Amphenol MB series connectors, please see the specifications below.
Get shopping! Mil Spec prefixes include MS3470, MS3471, MS3472, MS3474, MS3476 and MS3475. Amphenol's proprietary prefix is MB.
Features
High-quality contact system Amphenol’s MB connector series uses industry-standard M39029 crimp-style contacts and a field-proven contact retention clip that locks the contact into place while allowing easy insertion and removal with simple, low-cost plastic tools.
Wide range of cable accessories, including military-standard Unlike MIL-DTL-26482 series I style connectors, MIL-DTL-26482 Series II style are supplied without rear accessories but with military-standard rear threads. This permits a choice from one of the broadest array of endbells, including M85049-standard endbells, and from low-cost, simple cable tie versions to fully environmentally-sealed EMI-shielded endbells.
Broad operating temperatures MBs use high-quality silicone for the peripheral, interfacial and wire seals. This, along with the stable hard dielectric insert material that houses the contact retention clip, provide operating temperatures from -67°F to +392°F (-55°C to +200°C).
Rear contact insertion and release system Used properly, the insertion and extraction tools never touch, come in contact with or damage the interfacial seals, eliminating a common problem with front-release contact systems.
Cork-in-a-bottle interfacial seal system Socket inserts have hard, dielectric, funnel-shaped contact lead-ins that not only assist in aligning the contacts when mating, but provide compression of the raised individual contact seals on the high-quality silicone interfacial seals of the pin insert.
Materials & Finishes
Shell
High-grade aluminum alloy per QQ-A-367, QQ-A-591 or QQ-A-225; stainless steel 303 grade (AMS 5640)
Cadmium, Anodized, Electroless Nickel, Zinc Alloy, or Passivated
Bayonet Pins
Passivated stainless steel per QQ-S-763
Contacts
Copper alloy
Contact Plating
Gold-plated per MIL-G-45204 50 microinches
Insulator
Rigid-plastic dielectric
Grommet & Seals
Silicone-based elastomer
Electrical Data
Working & Test Voltage
Current Rating
Wire Range Sizes
24 – 12 AWG
Insulation Resistance
5,000 megohms minimum at 77°F (25°C) 500 megohms minimum at 392°F (200°C) Class L and 347°F (175°C) Class W
Mechanical
Operating TemperatureElectroless nickel and olive drab chromate over cadmium over nickel -67°F up to +392°F (-55°C up to +200°C)
Wire Sealing Range
Insulation Strip Length
All dimensions in inches (millimeters in parentheses)
Mating Life
500 cycles minimum, 250 cycles minimum for shielded plug
Salt Spray
Class L, 48 hours unmated; Class W, 500 hours mated; 452 hours mated per MIL-STD-1344 Method, 1001 per MIL-DTL-26482 black zinc, 500 hours
Heat
All platings and materials, +392°F (+200°C); for 1000 hours to MIL-STD-1344 Method 1005.1
Chemical Resistance
Tested unmated according to MIL-DTL-26482 4.6.28 for hydraulic fluid, lubricating oil, deicing fluids, jet fuels, solvents and coolants
Vibration
10 to 2000Hz (20g’s) 10 microseconds maximum discontinuity. To MIL-STD-1344 Method 2005 per MIL-DTL-26482
Shock
150g’s 6ms duration, three major axes. 10 microsecond maximum discontinuity
Contact Type
Crimp, co-ax, twinax, thermocouple, printed circuit board, and fiber optic
Number of Circuits
3 to 61
Contact Insertion & Extraction
Insertion from rear of connector with simple plastic or high-quality metal hand-tool. Extraction from rear with plastic or high-quality metal hand-tools
3.7.4 JAN and J marking. The United States Government has adopted and is exercising legitimate control over the certification marks “JAN” and “J”, respectively, to indicate that items so marked or identified are manufactured to, and meet all the requirements of specifications. Accordingly, items acquired to, and meeting all of the criteria specified herein and in applicable specifications shall bear the certification mark “JAN” except that items too small to bear the certification mark “JAN” shall bear the letter “J”. The “JAN” or “J” shall be placed immediately before the PIN except that if such location would place a hardship on the manufacturer in connection with such marking, the “JAN” or “J” may be located on the first line above or below the PIN. Items furnished under contracts or orders which either permit or require deviation from the conditions or requirements specified herein or in applicable specifications shall not bear “JAN” or “J”. In the event an item fails to meet the requirements of this specification and the applicable specification sheets, the manufacturer shall remove completely the military PIN and the “JAN” or the “J” from the sample tested and also from all the items represented by the sample. The “JAN” or “J” certification mark shall not be used on products acquired to contractor drawings or specification. The United States Government has obtained Certificate of Registration Number 504,860 for the certification mark “JAN” and Registration Number 1,586,261 for the certification mark “J”.