Product Overview
The 3M Mini-Clamp Socket, Series 373, is an IDC (Insulation Displacement Connector) designed for wiring applications, particularly for components supplied from Japan and Asia. It offers a quick, reliable, and debris-free termination process using standard pliers, eliminating the need for special wire preparation. Key advantages include integrated cable retention, acceptance of multiple wire size diameters, and high mating cycle durability. The compact design saves board and panel space, and the socket is available in wiremount and panel mount configurations, with optional latches for demanding applications. This product helps reduce maintenance work by providing higher connection reliability.
Product Attributes
- Brand: 3M
- Trademark: 3M and Scotchlok
- Origin: Supplied from Japan and Asia
- Connector Type: IDC (Insulation Displacement Connector)
- Pitch: 2 mm
- Mounting Options: Wiremount, Panel Mount
- Insulation Material: Glass reinforced thermoplastic body and lower cover, transparent thermoplastic cover
- Contact Material: Copper Alloy
- IDC Accommodation Material: Annealed Copper, high-strength Copper or Copper Alloy (Bare, tinned, or tin overcoated)
- Flammability: UL 94V-0
- Body Color: Black
- Cover Colors: White, Gray, Blue, Green, Red, Yellow, Orange (see Table 1)
- Plating (Contact): Underplating: 2.54 m [100 ] minimum Nickel; Wiping Area: 0.2 m [8 ] minimum Gold with Lubricant
- Markings: 3M Logo, Position Indicator, Wire Gauge, Insulator Material
- Certifications: UL File No.: E68080
Technical Specifications
| Specification | Value |
| Current Rating | 3.0 Amps |
| Voltage Rating | 32 Volts |
| Insulation Resistance | > 1 x 106 at 600 VDC |
| Withstanding Voltage | 1,000 VRMS at sea level |
| Ambient Temperature Rating (1.0 A max.) | 20C to +85C |
| Ambient Temperature Rating (2.0 A max.) | -20C to +75C |
| Ambient Temperature Rating (3.0 A max.) | -20C to +60C |
| UL Temperature Rating | 65C at 3.0A, 32V |
| Wire Gauge | 20 ~ 26 AWG [0.14 ~ 0.5 mm] stranded |
| Wire Insulation Diameter (OD) | 0.8 ~ 2.0 mm [0.031 ~ 0.079 inches] (see Table 1) |
| Termination Tool | Common pliers or 3M Scotchlok Crimping Tools E-9BM or E-9E |
| Regulatory Compliance | RIA E1 & C1 apply (See Regulatory Information Appendix for chemical compliance) |
Model Variations & Dimensions
| Series | Positions | Latch Option | Dim A (mm [Inch]) | Dim B (mm [Inch]) | Dim C (mm [Inch]) | Ordering Suffix |
| 373 Series | 3 or 4 | No Latch | 23.4 [0.92] | - | - | 0W0 |
| 3 or 4 | With Latch (Panel Mount) | 23.4 [0.92] | 11.5 [0.45] | - | 0P0 |
| 373 Series | 6 or 8 | No Latch | 13.5 [0.53] | 13.8 [0.54] | - | 0W0 |
| 6 or 8 | With Latch (Panel Mount) | 13.5 [0.53] | 13.8 [0.54] | 23.4 [Ref.] | 0M0 |
Wire Insulation OD & Color Coding (Table 1)
| Wire Insulation OD (mm [Inch]) | AWG | Cover Color | Part # Suffix |
| 1.6 ~ 2.0 [0.063 ~ 0.079] | 20-22 AWG | Gray | 2124 |
| 1.2 ~ 1.6 [0.047 ~ 0.063] | 20-22 AWG | Blue | 2165 |
| 1.0 ~ 1.62 [0.039 ~ 0.064] | 20-22 AWG | Green | 2206 |
| 0.8 ~ 1.0 [0.031 ~ 0.039] | 24-26 AWG | Red | 3101 |
| 0.8 ~ 1.0 [0.031 ~ 0.039] | 24-26 AWG | Yellow | 3122 |
| 0.8 ~ 1.0 [0.031 ~ 0.039] | 24-26 AWG | Orange | 3163 |
Panel Cutout Dimensions (Table 2)
| Pins | Panel Thickness (mm) | Dim A (mm [Inch]) | Dim B (mm [Inch]) | Dim A (mm [Inch]) |
| 03 | 1.4 to 1.6 | 20.0 [0.79] | 14.2 [0.56] | 20.4 [0.80] |
| 04 | 1.4 to 1.6 | 22.0 [0.87] | 16.2 [0.64] | 22.4 [0.88] |
| 06 | 1.0 to 1.2 | 20.0 [0.79] | 14.2 [0.56] | 20.4 [0.80] |
| 08 | 1.0 to 1.2 | 22.0 [0.87] | 16.2 [0.64] | 22.4 [0.88] |
