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Sumitomo 8240-0531 | Sealed Female Terminal 0.3-0.5mm² | Tin Plated
Short Description:
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Manufacturer: Sumitomo Wiring Systems
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Part Number: 8240-0531
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Type: Receptacle / Female Terminal
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Sealing Type: Sealed (Waterproof Application)
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Wire Range: 0.3 – 0.5 mm²
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Plating Material: Tin (Sn)
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Operating Temp: -40°C to +120°C
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Main Function: Signal/Power transmission with waterproof fixation
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Application: Automotive Engine Bay, Chassis, and Sensor Harnesses
Product Detail
Product Tags
Shop original Sumitomo 8240-0531 sealed female terminals at Suzhou Suqin Electronic. Designed for 0.3-0.5mm² wire size with tin plating and -40°C to 120°C rating. Ideal for waterproof automotive connectors.
Data Overview
| Attribute Category | Technical Specification |
| Brand | Sumitomo |
| Model / PN | 8240-0531 |
| Gender | Female (Socket) |
| Wire Size Range | 0.3mm² – 0.5mm² |
| Terminal Material | Copper Alloy |
| Surface Plating | Tin Plated (Sn) |
| Environmental Protection | Sealed / Waterproof |
| Operating Temperature | -40°C to +120°C |
| Mating Series | Sumitomo Waterproof Connector Series |
| Packaging | Reel / Bulk Supply |
| Compliance | Automotive Grade / RoHS |
Product Details
| Material Science & Plating | Mechanical Integrity & Sealing | Strategic Business Value |
| High-Conductivity Copper Alloy | Provides low electrical resistance and stable current flow, even in small wire gauges (0.3-0.5mm²). | Signal Precision: Ensures reliable data and power transmission for sensitive automotive ECUs and sensors, preventing system errors. |
| Premium Tin (Sn) Plating | Offers superior corrosion resistance and prevents oxidation in humid environments. | Long-Term Durability: Extends the service life of the wire harness by maintaining high contact integrity throughout the vehicle’s lifespan. |
| Sealed Design for Waterproofing | Specifically engineered to work with wire seals to prevent moisture ingress into the connector housing. | Harsh Environment Ready: Ideal for “wet” areas of the vehicle, reducing the risk of short circuits and terminal corrosion in engine bays. |
| Precision Crimp Zone Structure | Designed for automated high-speed crimping, ensuring a robust mechanical bond between the wire and contact. | Production Efficiency: Minimizes terminal deformation and assembly rejects, lowering the total cost of quality for wire harness manufacturers. |
Our advantage
● Brand supply diversification,
Convenient one-stop shopping
● Covers a wide range of fields
Automobile, electromechanical, industrial, communication, etc.
● Complete information, fast delivery
Reduce intermediate links
● Good after-sales service
Quick response, professional reply
● Original genuine guarantee
Support professional consultation
● After-sales problems
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: Does the 8240-0531 require a specific wire seal for waterproofing?
A: Yes. Since the 8240-0531 is a “Sealed” type terminal, it must be used with a compatible rubber wire seal (Grommet) and inserted into a waterproof connector housing to achieve its full IP rating against moisture and dust.
Q2: Is the 8240-0531 compatible with non-Sumitomo connectors?
A: Terminal compatibility is highly specific. While it is designed for Sumitomo Waterproof Series housings, it may fit certain OEM-equivalent housings. We recommend verifying the dimensions of the terminal cavity or consulting our technical team for compatibility confirmation.
Q3: What is the benefit of Tin (Sn) plating for this 120°C rated terminal?
A: Tin plating provides an excellent balance of conductivity and cost-effectiveness while offering a high level of protection against atmospheric corrosion. For the -40°C to 120°C range, it ensures stable contact resistance, which is critical for signal-level connections in automotive sensors.
