Cables/Connecting

IDC terminals provide high contact reliability

27th October 2015
Barney Scott

ERNI Electronics expands its offering of IDC terminals, adding variants for stranded wires (AWG24/7 and AWG26/7) to the existing offering for solid wires AWG24/1 and AWG22/7 (stranded wires). Wires with a maximum diameter of 1.1mm (including isolation) can now be handled. The IDC terminals and the current AWG22 variants are also now available with extended colour options.

These colour variants offer the designer the option to colour-code the layout so that mistakes during wire attaching (integration) are mitigated. The very compact IDC terminals are suitable for reliable PCB connections, especially suiting space-sensitive applications such as in lighting (LED, OLEDs, etc.), medical equipment, smart metering, head sets and a huge variety of mobile devices.

The IDC-PCB terminals eliminate manual preparation (dismantling) of wires prior to termination. The dual IDC contact blades provide a reliable, gas-tight connection to the conductor wire with high contact reliability. This means that costly and unreliable hand soldering processes can be avoided and replaced instead with discrete wires attach that can be reproduced and processed reliably. The overall dimensions (3.3x3.3x2.8mm) and required PCB space are significantly smaller compared to other solutions.

The integrated cap (housing) guides the wire into the dual design terminal, while also serving as a strain relief mechanism. Other features include versions with closed end (wire stop) or feed-through (daisy chain capability). Guiding latches in the contact element guarantee correct connection, whilst detents ensure a secure hold. In spite of their compact dimensions, they can support a maximum current carrying capacity of 14A (AWG 24/7 at 20°C) or 12A (AWG 26/7).

The IDC terminals are specified for an extended temperature range of -40 to +150°C. The IDC terminals are supplied in tape and reel packaging (2000 pieces) to facilitate fully automated board assembly. They are suitable for backside reflow soldering on modern SMT lines.

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