The **JR16-R-4MCT1** is a specialized high-density electrical connector component, typically part of the **Hirose JR Series**. These connectors are designed to meet rigorous industrial standards, specifically conforming to JIS C 5432 (Japanese Industrial Standards). Below is a detailed breakdown of its electronic and mechanical specifications. --- ### 1. Key Technical Specifications | Feature | Specification Details | | :--- | :--- | | **Series** | JR Series (High-density circular) | | **Shell Size** | 16 | | **Number of Contacts** | 4 | | **Connector Gender** | Receptacle (Standard) | | **Contact Gender** | Male (Plug/Pin) | | **Termination Method** | Crimp (Removable) | | **Mounting Type** | Panel Mount (Square Flange) | --- ### 2. Electrical Characteristics The "4M" designation indicates a 4-pin configuration capable of handling significant power or signal loads compared to higher pin-density versions. * **Rated Current:** Generally rated for **10A per contact** (depending on wire gauge). * **Rated Voltage:** Usually **AC 300V / DC 420V**. * **Withstanding Voltage:** AC 1,000V for 1 minute. * **Insulation Resistance:** Minimum 1,000 MΩ at DC 500V. * **Contact Resistance:** Maximum 5 mΩ at DC 1A. --- ### 3. Component Construction The part is built for durability in industrial environments: 1. **Outer Shell:** Aluminum alloy with a nickel or chrome plating for corrosion resistance and EMI shielding. 2. **Insulator:** High-grade synthetic resin (usually PBT or PPS) providing high dielectric strength. 3. **Contacts:** Copper alloy with silver or gold plating to ensure low resistance and prevent oxidation. 4. **Locking Mechanism:** Threaded coupling (screw-on) for secure vibration-proof connections. --- ### 4. Part Number Breakdown (Nomenclature) Understanding the alphanumeric code helps in identifying replacements or mating parts: * **JR:** Hirose series name for JIS C 5432 connectors. * **16:** The shell size (approximate diameter in mm). * **R:** Receptacle (the part that stays fixed to the equipment). * **4:** Number of pins/contacts. * **M:** Male contacts (Pins). * **CT:** Crimp Termination type. * **1:** Specific revision or design variant code. --- ### 5. Application Areas This part is commonly used in: * **Factory Automation:** Motor control and sensor arrays. * **Medical Equipment:** High-reliability power and signal links. * **Communication Devices:** Base stations and ruggedized networking gear. * **Test & Measurement:** Laboratory instrumentation requiring frequent mating cycles.