Jelly Crimps
FAQs
Jelly crimps, also known as gel-filled wire connectors, are small, insulated connectors used to join or splice copper telephone and data cables securely. They contain a moisture resistant gel filling that seals the connection, preventing corrosion and maintaining signal integrity. They’re commonly used in voice cabling, telecom networks, and outdoor or underground wiring applications where protection against moisture is essential.
Jelly crimps use Insulation Displacement Connection (IDC) technology. This means the wires don’t need to be stripped before crimping, when inserted into the connector and pressed with a crimping tool, metal blades cut through the insulation and make a reliable electrical contact. The gel inside the connector encapsulates the joint, blocking moisture and contaminants, ensuring a long lasting, corrosion free connection.
Benefits include:
- Moisture protection, the gel filling prevents corrosion in damp or outdoor conditions.
- Quick installation, no stripping or soldering required, connections are made in seconds.
- Reliable performance, maintains low resistance and consistent connectivity over time.
- Versatility, suitable for telecom, alarm, and low-voltage applications.
- Durability, withstands temperature fluctuations and environmental exposure.
Consider:
- Wire gauge compatibility, ensure the connector supports the cable size (typically 0.4-0.9mm solid copper).
- Pair count, choose single pair or multipair crimps based on the number of connections needed.
- Application environment, use gel-filled types for outdoor, underground, or damp conditions; standard IDC connectors are fine for dry indoor use.
- Installation tools, use a dedicated IDC crimping tool for a secure, consistent connection. Avoid pliers, as they may damage the connector.