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Amphenol MS3181-12CA

Categories Round Connectors
Model Number: MS3181-12CA
Description: Circular Connector Accessories RoHS
Stock: 316
Packaging Details: -
MOQ: 48
Brand Name: Amphenol
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Amphenol MS3181-12CA

Product Overview

Amphenol Miniature Cylindrical Connectors, including the PT, SP, and MS/PT series, are designed for general duty and environmental applications in industrial and military markets. These connectors offer twice the number of contacts in half the size of standard connectors, providing significant design flexibility. They are suitable for applications such as instrumentation, monitoring equipment, machine tool automation, communications, industrial controls, robotics, and military/aerospace. Key features include environmental sealing achieved through grommet and clamp design, an operating temperature range of -55C to +125C, and operating voltages up to 1000 VAC (RMS) at sea level. Contacts are machined from a low-loss copper alloy and gold-plated for corrosion resistance and extended shelf life. Resilient inserts provide high dielectric strength and a moisture barrier. Various shell finishes and back-end accessories are available.

Product Attributes

  • Brand: Amphenol
  • Series: 97 Series, PT Series, SP Series, MS/PT Series, PT-SE, SP-SE, MS/PT-SE
  • Certifications: UL recognized, CSA recognized (97 Series)
  • Material: Aluminum shells, low loss copper alloy contacts (gold plated)
  • Inserts: Resilient neoprene
  • Coupling: Bayonet coupling (3-point)
  • Polarization: 5 key/keyway mating
  • RoHS Compliant: Available in some miniature connector styles.
  • Quality Systems: Certified to ISO 9001:2015, ISO 14001:2015, ISO/TS 16949:2016
  • Origin Note: Formerly known as Bendix products.

Technical Specifications

FeatureSpecification
Operating Temperature-55C to +125C
Operating VoltageUp to 1000 VAC (RMS) at sea level
Contact Retention SystemNon-Removable (PT, SP, MS/PT), Removable (PT-SE, SP-SE, MS/PT-SE)
Contact TerminationSolder, Crimp (Rear Insertion/Front Release)
Shell FinishesOlive Drab Cadmium (003), Anodic Coated (005), Gray Zinc Nickel (072), Black Zinc Cobalt (025), Electroless Nickel (023)
Hermetic SealAvailable (fused compression glass sealed inserts)
Coaxial ContactsSize 8 & 12 Crimp and Solder types available
Printed Circuit Board ContactsAvailable in PT bayonet connectors (box mounting and jam nut receptacle styles)
EMI Filter ProtectionAvailable (FPT Series)
Overmolded Cable OptionsAvailable
Service Ratings (Power Contacts)I: 600 VAC (Sea Level), II: 1000 VAC (Sea Level)
Contact Sizes20, 16, 12
Shell Sizes6 through 24
Insert ArrangementsRefer to pages 4-10 for availability (e.g., 6-1, 8-2, 10-5, 14-19, 22-55, 24-79)
PT, SP, MS/PT Service ClassesA, C, E, P, PG, H (Hermetic)
PT-SE, SP-SE, MS/PT-SE Service ClassesSE, SE (SR), SP
MS/PT-SE Service ClassesE, F, P
Contact Data/Ratings (Size 20)Test Current: 7.5A, Max Millivolt Drop: 55
Contact Data/Ratings (Size 16)Test Current: 13.0A, Max Millivolt Drop: 50
Contact Data/Ratings (Size 12)Test Current: 23.0A, Max Millivolt Drop: 42
Hermetic Helium LeakageLess than 1.0 X 10-6 cc/sec. at 15 psi differential
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