Keszoox
Molex Mini-Fit Jr 4.2mm Pre-Crimped Terminal Female single-head Cable (Without Connector), 18AWG UL1007 PVC
Molex Mini-Fit Jr 4.2mm Pre-Crimped Terminal Female single-head Cable (Without Connector), 18AWG UL1007 PVC
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Molex Mini-Fit Jr. 4.2mm Female Single-Head Pre-Crimped Terminal Cable — 18AWG UL1007 PVC, 9A / 600V
The Molex Mini-Fit Jr. 4.2mm female single-head pre-crimped terminal cable is the professional-grade solution for custom high-current power harness assembly. Featuring a genuine Molex Mini-Fit Jr. female crimp terminal on one end and a bare tinned lead on the other — without a housing — this cable is designed for applications where the Mini-Fit Jr. housing is already installed on the PCB or device, and one end must be soldered directly to a PCB pad, bus bar, or screw terminal.
With an 18AWG UL1007 PVC conductor rated at 9A per contact and 600V, this cable handles the demanding current loads of ATX power supplies, industrial motor drives, server power distribution, and automotive power harnesses — far beyond the capability of standard signal-level connectors.
Key Features
- Genuine Molex Mini-Fit Jr. female crimp terminal — precision-stamped contact for reliable, low-resistance crimped connections in Mini-Fit Jr. housings (Molex 39012 / 5557 series)
- Single-head configuration — female terminal one end, bare tinned lead other end; ideal when one end is soldered to a PCB pad, bus bar, or screw terminal
- 18AWG UL1007 PVC insulation — rated 80°C, 300V, flexible and durable for power wiring applications
- 9A / 600V rating — handles high-current power lines in ATX, industrial, and automotive applications
- Pre-crimped factory assembly — consistent, reliable crimp quality; eliminates field crimping errors
- Bare tinned lead — pre-tinned for direct PCB pad soldering, screw terminal connection, or custom connector termination
- RoHS compliant — meets EU RoHS 2 directive for hazardous substance restrictions
Typical Applications
- ATX power supply harness assembly — custom 24-pin, 8-pin EPS, and PCIe power cable fabrication
- Industrial motor drive and inverter wiring — high-current power distribution harness assembly
- Server and data center power distribution — custom power harness for rack-mount equipment
- Automotive power harness assembly — battery, alternator, and high-current circuit wiring
- Custom PCB power connector population — where Mini-Fit Jr. housing is pre-installed on the PCB
- Replacement terminal cables — for repair and maintenance of existing Mini-Fit Jr. harnesses
Molex Mini-Fit Jr. Terminal Cable Configurations
- Female single-head (this product): Female terminal one end, bare lead other — use when one end is soldered to a PCB pad or screw terminal
- Female both-sided: Female terminals both ends — use when both ends insert into pre-installed Mini-Fit Jr. housings
- Male single-head: Male terminal one end, bare lead other — use for plug-side harness assembly with one soldered end
Technical Specifications
- Connector Series: Molex Mini-Fit Jr.
- Compatible Housings: Molex 39012 (receptacle), 5557 series
- Pitch: 4.2 mm
- Terminal Type: Female crimp terminal (one end), bare tinned lead (other end)
- Wire Gauge: 18 AWG
- Insulation: UL1007 PVC, 300V
- Voltage Rating: 600V
- Current Rating: 9A per contact
- Temperature Rating: 80°C
- RoHS Compliant: Yes
- Brand: Keszoox
- Origin: Mainland China
Frequently Asked Questions
Product & Compatibility
What is the difference between JST PH, XH, ZH, and SH connectors?
JST connectors differ primarily in pitch (pin spacing): SH = 1.0mm, ZH = 1.5mm, PH = 2.0mm, XH = 2.5mm. Smaller pitch connectors are used in compact electronics like drones and wearables, while larger pitch connectors suit general prototyping and power applications. Always verify pitch before ordering to ensure compatibility.
Are your connectors compatible with standard Arduino and Raspberry Pi projects?
Yes. Our DuPont 2.54mm connectors are the industry standard for Arduino, Raspberry Pi, and most development boards. JST PH 2.0mm is widely used for LiPo batteries in RC and robotics projects. We recommend checking your board's datasheet to confirm the exact connector type and pin count required.
What wire gauge (AWG) should I choose for my application?
Wire gauge depends on current load: 28–30 AWG suits signal lines up to 0.5A; 24–26 AWG handles 1–3A for moderate power; 22 AWG is suitable for up to 5A. For high-current applications, always use appropriately rated wire and connectors. Our product listings specify the AWG and rated current for each cable.
What is the difference between UL1007 and Silicone wire?
UL1007 is a PVC-insulated wire rated for 80°C and 300V, suitable for most indoor electronics applications. Silicone wire is rated for higher temperatures (up to 200°C), is more flexible, and performs better in harsh environments or high-vibration applications such as RC vehicles and industrial equipment.
Orders & Customization
Can I order custom cable lengths or connector configurations?
Yes. We offer custom wire harness solutions including custom lengths, connector types, pin counts, and wire colors. Please contact us via the Contact page with your specifications and we will provide a quote within 1–2 business days.
Do you offer bulk or wholesale pricing?
Yes. Volume discounts are available for orders of 50 units or more. Please reach out through our Contact page with your requirements for a customized wholesale quote.
How do I know which connector polarity or pin orientation to order?
Always refer to your device's datasheet or existing connector for pin 1 orientation. Our product images include wiring diagrams where applicable. If you are unsure, contact us with your device model and we will help identify the correct part.
Shipping & Returns
How long does shipping take?
Standard international shipping typically takes 7–15 business days depending on destination. Expedited options are available at checkout. Orders are processed within 3 business days. Tracking information is provided via email once your order has shipped.
What is your return policy for electronic components?
We accept returns within 30 days of delivery for unused, unopened items in original packaging. Items that have been crimped, soldered, or modified cannot be returned. If you receive a defective or incorrect item, please contact us within 7 days with photos and we will arrange a replacement or refund promptly.
Do you ship to my country?
We ship worldwide to over 50 countries. Shipping availability and rates are calculated at checkout based on your delivery address. If you do not see your country at checkout, please contact us and we will do our best to accommodate your order.