Molex 51005 / 51006 Male-Female Extension Cable — MX 2.0mm, 2–12 Pin, 22AWG UL1007

Molex 51005 / 51006 Male-Female Extension Cable — MX 2.0mm, 2–12 Pin, 22AWG

Extend any existing Molex 51005 / 51006 (MX 2.0mm / Micro Losi) wiring harness without cutting, re-crimping, or modifying your existing cables. This inline extension cable has a Molex 51006-compatible male housing on one end and a Molex 51005-compatible female receptacle on the other — plug it between any two MX 2.0mm connectors to add length instantly.

Available in 2P through 12P. Color-coded 22AWG UL1007 conductors rated at 300V / 3A per contact. Ideal for RC battery lead extensions, IoT sensor harness extensions, and compact embedded system wiring where the original cable is too short.

Key Specifications

• Connectors: Molex MX 2.0mm male (51006-compatible) one end + female (51005-compatible) other end
• Pitch: 2.00 mm | Pin counts: 2 to 12 pin
• Wire: 22AWG UL1007 PVC, color-coded conductors
• Voltage rating: 300 V | Current rating: 3A per contact
• Temperature range: −25°C to +80°C
• Compliance: RoHS

How It Works

The male end plugs into your existing 51005 female receptacle; the female end accepts your existing 51006 male header or pigtail. The result is a seamless inline extension with no signal loss, no re-crimping, and no modification to your existing harness.

Typical Applications

• 🔋 RC / FPV: Extend 1S/2S LiPo battery leads on micro RC cars and FPV quads (Micro Losi standard) when the original lead is too short to reach the ESC or receiver
• 📡 IoT & Embedded: Extend sensor and battery harnesses in wireless nodes and compact embedded systems without re-wiring
• 🔧 Prototyping: Quickly add length to any MX 2.0mm harness during development and testing
• 🏭 Industrial: Inline harness extension for compact DIN-rail and panel-mount assemblies
• 🩺 Wearables & Medical: Low-current sensor harness extension in portable and wearable devices

Compatibility Note

Compatible with all Molex 51005 / 51006 (MX 2.0mm) connectors and pre-crimped cables. Not compatible with JST PH 2.0mm connectors despite identical pitch — housing geometry differs. For JST PH extension cables, see our JST PH 2.0mm range.

Extension Cable vs Pigtail — Which Do I Need?

• Extension cable (this product): Male one end + female other end — plugs inline between two existing MX 2.0mm connectors to add length
• Female single-head pigtail: Female one end + bare leads other end — for new connections to a PCB header
• Male single-head pigtail: Male one end + bare leads other end — for new connections to a female receptacle

Enjoy free standard shipping on all orders over $199 USD. Orders are processed within 1–2 business days.

Not satisfied? Return any item within 90 days of purchase for a full refund or exchange. Items must be in original condition.

We are committed to quality, reliability, and customer satisfaction. Every product is carefully selected and tested to meet the highest standards.