3M Scotchlok UY2 IDC Connector (2-Wire, 22-26 AWG, Yellow, 100-Pack) 7100337033

The 3M Scotchlok UY2 connector, model 7100337033, is a compact, grease-filled insulation displacement connector engineered for dependable splicing of two solid copper wires. Unlike typical twist-on wire nuts, this connector uses a crimp-style IDC (Insulation Displacement Connection) that pierces the insulation without stripping, delivering a moisture-resistant, gas-tight joint. Its bright yellow polypropylene body is a familiar sight in telecommunications and low-voltage applications, where quick, secure connections are essential.

Highlights

• IDC (Insulation Displacement Connector) for fast, reliable splicing
• Accepts 22-26 AWG (0.65-0.4 mm) solid copper conductors
• Grease-filled interior provides moisture resistance for outdoor or damp environments
• Rated for 600 V max and 1 A max current
• Operating temperature range: -40°C to 60°C
• RoHS compliant and made in the USA

In daily use

Ideal for telecom, security, and low-voltage wiring tasks, the UY2 connector streamlines cable splicing. Simply insert two solid copper wires into the connector and compress with a crimping tool (such as 3M's E-9Y or similar). The internal contact displaces insulation and forms a secure, corrosion-resistant connection. The grease-filled design protects the splice from moisture, making it suitable for outdoor enclosures and underground applications. Whether you are joining telephone lines, alarm cables, or other low-voltage circuits, the UY2 delivers consistent performance.

Full specifications

• Product Series: Scotchlok UY2
• Connector Type: IDC (Insulation Displacement Connector)
• Number of Conductors: 2
• Wire Gauge Compatibility: 22-26 AWG (0.65-0.4 mm)
• Conductor Type: Solid Copper
• Max Insulation Diameter: 1.52 mm (0.060 in)
• Voltage Rating: 600 V (max)
• Current Rating: 1 A (max)
• Moisture Resistance: Yes, grease-filled
• Color: Yellow
• Body Material: Polypropylene
• Contact Material: Tin-plated Brass/Bronze
• Installation Method: Crimp (pliers)
• Operating Temperature: -40°C to 60°C
• Dielectric Strength: 3 kV
• Application: Splicing two wires
• RoHS Compliant: Yes

Final note

For durable, moisture-proof splices in low-voltage wiring, the 3M Scotchlok UY2 connector offers a proven solution. Its compact design and ease of installation make it a staple for professionals and DIY enthusiasts alike. Available in a 100-pack to keep your toolbox stocked.