Harwin Inc. M20-7832046: Premium 40-Position Rectangular Receptacle Connector for Demanding Applications

The M20-7832046 rectangular receptacle connector from Harwin Inc. represents the gold standard in reliable interconnects for mission-critical electronics. As engineers increasingly demand robust solutions for harsh environments, this 40-position connector delivers exceptional performance across industrial, medical, aerospace, and telecommunications applications.

In-Depth Technical Specifications

Superior Mechanical Design

Featuring a precision-engineered 2-row configuration with 0.100" (2.54mm) pitch spacing, the M20-7832046 enables high-density PCB layouts while maintaining reliable connections. The through-hole mounting provides superior mechanical stability compared to surface-mount alternatives, with solder terminations that withstand vibration and mechanical stress.

Enhanced Electrical Performance

With a 3A current rating per contact and 1000V voltage rating, this connector handles both signal and power requirements in complex systems. The tin-plated contacts ensure low contact resistance (typically <20m ) and excellent corrosion resistance, maintaining signal integrity over thousands of mating cycles.

Advanced Material Composition

High-Temperature Housing

The UL94 V-0 rated thermoplastic housing maintains structural integrity across an operating temperature range of -40 C to +105 C. This makes the connector suitable for:

• Outdoor industrial equipment
• Automotive under-hood applications
• Aerospace avionics systems
• Medical sterilization environments

Durability Testing

Harwin subjects the M20-7832046 to rigorous qualification testing including:

• 500+ mating cycles without significant contact wear
• 85 C/85% RH humidity testing for 1000 hours
• Mechanical shock testing to 100G
• Vibration resistance to 20G (10-2000Hz)

Application-Specific Advantages

Industrial Automation Solutions

In factory automation systems, the M20-7832046 excels for:

• PLC I/O module connections
• Motor control interfaces
• Sensor network backbones
• HMI panel interconnects

Medical Device Integration

The connector's reliability meets stringent medical requirements for:

• Patient monitoring equipment
• Diagnostic imaging systems
• Surgical robotics
• Portable medical devices

Competitive Comparison

Compared to generic rectangular connectors, the M20-7832046 offers:

Feature	M20-7832046	Generic Connectors
Contact Plating	Dual tin plating	Single-layer plating
Mating Cycles	500+	100-200
Flammability Rating	UL94 V-0	UL94 HB
Temperature Range	-40 C to +105 C	0 C to +85 C

Design Integration Guidelines

PCB Layout Recommendations

For optimal performance:

• Maintain 0.5mm clearance around mounting holes
• Use 0.8mm minimum annular rings for through-holes
• Include strain relief for cable-mounted versions

Mating Connector Options

The M20-7832046 is compatible with multiple Harwin header options including:

• M20-7830446 (Right-angle header)
• M20-7830346 (Vertical header)
• M20-7830946 (Shrouded header)

Purchasing and Availability

Available through authorized distributors with:

• Standard lead times of 4-6 weeks
• MOQ of 100 pieces
• Full traceability documentation
• RoHS and REACH compliance

Conclusion

The Harwin M20-7832046 sets the benchmark for high-reliability rectangular connectors, combining military-grade durability with precision engineering. Its 40-position configuration delivers maximum connectivity in minimal space, while the robust construction ensures long-term performance in even the most demanding environments. For engineers who refuse to compromise on quality, this connector provides the perfect interconnection solution.

Ready to specify the M20-7832046 in your next design? Contact Harwin's technical support team today for application-specific guidance and sample requests.