This specification covers the 4.20mm pitch 5557 series double row connectors. It details product performance, test methods, and inspection requirements for applications requiring reliable electrical connections.
| Item | Specification | Details |
| General | Model No. | HC 5557 (4.20) Double Row |
| Pitch | 4.20mm | |
| Release Date | 2019-7-25 | |
| Use Condition | Ambient Temperature Range | -40105 |
| Applicable Wire Sizes | AWG #1628 | |
| Applicable PC board thickness | 1.6mm | |
| Electrical Performance | Rated Voltage | 300V AC/DC |
| Rated Current | 9A AC/DC | |
| Contact Resistance | Initial value 20 | |
| Mechanical Performance | Single Contact Insertion Force | 10N |
| Single Contact Withdrawal Force | 2N | |
| Terminal Crimping Wire Strength | 30N (AWG#16) | |
| Vibration | Current Discontinuity: 1 sec Max; Contact Resistance 40m | |
| Environmental Performance | Thermal Aging | Temperature: 852, Period: 96 hours; Contact Resistance 40m |
| Temperature Cycling | -553C to 853C, 5 cycles; Contact Resistance 40m | |
| Salt Spray | Temperature: 353 , Period: 48 hours (before plating) / 8 hours (after plating); Contact Resistance 40m | |
| Solder Ability | Solder temperature: 2455C, Immersion period: 3 0.5S | |
| Resistance to Soldering Heat | Wave soldering: 2605, 50.5S; Manual soldering: 3505, 30.5S |
