Precision Terminal Wire Assembly | Custom 4P 1.25mm JST Terminal Wire, Red Black Twisted Signal Cable for Sensor, Drone, Motor | RoHS Compliant Made in China

Precision Terminal Wire Assembly | Custom 4P 1.25mm JST Terminal Wire, Red Black Twisted Signal Cable for Sensor, Drone, Motor | RoHS Compliant Made in China​

Core Technical Specifications

Highlights

• Wire Construction & Anti-Interference Design

Core Configuration: The red and black conductors use a tight twisted pair construction, while the yellow and white conductors run in a parallel straight configuration.

Design Logic:
Red/Black Twisted Pair: Leverages the electromagnetic cancellation principle of twisted wires to drastically reduce external electromagnetic interference (EMI) and crosstalk between wires, ensuring stable signal transmission — ideal for high-interference environments like motors and sensors.

Yellow/White Parallel Pair: Dedicated to stable power transmission with lower line loss and more reliable power delivery.

Wire Specifications: The printed markings on the wire confirm it is a UL-certified electronic wire (most commonly UL1571 / UL1007), with a 24-30AWG tinned copper conductor and flame-retardant PVC insulation, fully compliant with RoHS environmental standards.

•  Core Connector (Housing) Specifications

Pitch Standard: A standard 1.25mm ultra-fine pitch that saves over 40% of installation space compared to conventional PH2.0 / XH2.54 terminal wires, perfectly suited for miniaturized and compact devices.

Material & Construction:
Housing Body: Made of high-temperature resistant PA66 nylon, which resists aging, deformation, and brittleness even after long-term use.
Terminal Contacts: Brass with tin plating for excellent conductivity and oxidation resistance, with a minimum mating lifespan of over 5000 insertions.

Anti-Disconnection Design: Dual-side elastic locking clips that firmly lock the connector to the board-mounted header, providing excellent vibration resistance and preventing accidental disconnection that could cause contact failure during device operation.
 

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Important Notes

• Please confirm the connector model, pin sequence and wire gauge before installation to avoid wrong connection, short circuit or equipment damage.

• Avoid using the wire harness in over-current, over-voltage or high-temperature exceeding the rated working range, to prevent wire heating and safety risks.

• Keep the connector away from water, dust, oil and corrosive environments to ensure long-term stable conductivity and avoid poor contact.

• Do not bend or squeeze the wire sharply for a long time; reasonable wiring protection can extend the service life of the harness.For drone and flight model applications, check the locking buckle condition before flight to ensure firm connection and prevent mid-air disconnection.