Molex 43025-1800 Micro-Fit 3.0 Receptacle Housing 18-Pin Dual Row | Suqin
Short Description:
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Brand Manufacturer: Molex
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MPN (Part Number): 43025-1800
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Part Number Aliases: 0430251800
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Product Series: Micro-Fit 3.0 Series (43025)
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Connector Configuration: Housing Shell for Female Terminals (Receptacle)
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Total Circuit Positions: 18 Positions
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Row Architecture: Dual Row (2 Rows Layout)
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Pitch Spacing Matrix: 3.00mm (0.118 inch) Centerline
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Row Spacing Matrix: 3.00mm (0.118 inch) Centerline
Product Detail
Product Tags
Source genuine Molex 43025-1800 Micro-Fit 3.0 receptacle housing at Suqin. This 18-pin dual-row, 3mm pitch black wire housing features UL 94 V-0 flammability and a secure locking latch for high-density power and signal wiring. Request a quote now.
Data Overview
| Technical Parametric Attributes | Spec Detail Values |
| Manufacturer | Molex |
| Product Part Number | 43025-1800 |
| Part Number Aliases | 0430251800 |
| Product Category | Headers & Wire Housings |
| Tradename / Series | Micro-Fit 3.0 (Series 43025) |
| Connector Type | Receptacle Housing (Female Socket) |
| Number of Positions / Pins | 18 Position |
| Number of Rows | 2 Row (Dual Row) |
| Pitch / Centerline | 3.00 mm (0.118 in) |
| Row Spacing | 3.00 mm (0.118 in) |
| Current Rating | 5.0 A |
| Mounting Style | Cable Mount / Free Hanging |
| Termination Style | Crimp Terminal Setup |
| Mounting Angle | Straight Entry |
| Housing Material | Nylon |
| Flammability Rating | UL 94 V-0 |
| Housing Color | Black |
| Operating Temperature Range | -40°C to +105°C |
| Application Ecosystem | Wire-to-Board, Wire-to-Wire, Power Connections |
| Packaging Unit Weight | 0.065327 oz / Bulk Packing |
Product Details
| Features | Advantages | Benefits |
| 3.0 mm Pitch Compact Dual-Row Layout | Occupies significantly less PCB and panel space compared to traditional 4.2 mm pitch wire-to-board connectors. | Enables engineers to design high-density electronic modules and downsized wire harnesses without sacrificing current capacity. |
| Fully Polarized & Keyed Housing | Prevents misaligned insertion or cross-mating between the receptacle and headers. | Eliminates human assembly errors on the factory floor, heavily reducing terminal damage and QA failure rates during production. |
| Integrated Positive Locking Latch | Delivers an audible click when fully mated, ensuring a rugged, vibration-proof mechanical connection. | Guarantees absolute signal stability and operational safety in harsh automotive, industrial automation, and power supply systems. |
| UL 94 V-0 Fire-Retardant Nylon | Self-extinguishes within seconds during an electrical failure, meeting rigorous international safety baselines. | Provides global compliance compliance, safeguarding high-temperature telecommunication and medical infrastructure applications. |
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Ensure that the imported original products are genuine. If there is a quality problem, it will be solved within one month of receiving the goods.
Q1: What crimp terminals and mating headers are compatible with the Molex 43025-1800 housing?
A: The 43025-1800 receptacle housing is designed to be populated with Molex Micro-Fit 3.0 female crimp terminals (such as the 43030 series). For wire-to-board or wire-to-wire setups, it mates directly with Molex 43020 dual-row plug housings and Molex 43045 dual-row PCB headers. Matching terminal genders correctly is essential for proper electrical contact.
Q2: Does the 43025-1800 connector support mixed power and signal configurations?
A: Yes, the Micro-Fit 3.0 system is highly versatile. It can handle up to a 5.0 A current rating per circuit when paired with appropriate wire gauges (typically 20-30 AWG), making it an excellent choice for low-to-mid range power distribution as well as high-density signal routing within the same 18-pin block.
Q3: How does the positive locking latch on the 43025-1800 improve connection reliability?
A: The integrated mechanical latch provides a firm, physical lock when mated with a compatible plug or header. This mechanism prevents the connector from backing out due to mechanical stresses, shipping vibration, or handling. Workers will hear and feel an audible click, confirming that the connector is securely locked in place.











