Materials and Finishes
| Insulator: | Glass-filled polyester per MIL-M-24519, UL 94V-0 blue color |
|---|---|
| Signal Contacts: | Male: precision machined brass alloy Female: precision machined high tensile copper alloy with stainless steel shroud Plating: Gold flash over nickel and gold 0.000050 (1.27 µ) over nickel. Other finishes available upon request. |
| Power Contacts: | Machined of copper alloy for both male and female contacts Plating: Gold flash over nickel. Other finishes available upon request. |
| Shells: | Steel or brass with tin plate; zinc with chromate seal, stainless steel passivated. Other materials and finishes available upon request |
| Brackets: | Brass with tin plate; zinc plate with chromate seal or stainless steel, passivated |
| Push-On Fasteners: | Beryllium copper with tin plate |
| Jackscrew Systems: | Steel with zinc plate and chromate seal; stainless steel, passivated. |
| Hoods: | Glass filled polyester, UL 94V-0, blue color |
Electrical Characteristics
| Size 20 Signal Contacts: | |
|---|---|
| Contact current rating: | 7.5 amperes nominal |
| Initial contact resistance: | 0.008 ohms maximum |
| Proof voltage: | 1000 V r.m.s. |
| Size 8 Power Contacts: | |
| Contact current rating: | MTCA 48V: 70 amperes nominal per UL 1977. See Temperature Rise Curves MTCA 24V: 85 amperes nominal per UL 1977 |
| Initial contact resistance: | 0.0005 ohms max. per IEC 512-2, Test 2b |
| Proof voltage: | 1000 V r.m.s. |
| Connector: | |
| Insulator resistance: | 5 G ohms |
| Working voltage: | 300 V r.m.s. |
| Clearance/creepage distance: | Between power contacts: 0.06 inch (1.5 mm), minimum Between signal contacts: 0.02 inch (0.4 mm), minimum Between power and signal contacts: 0.06 inch (1.5 mm), minimum Between power contacts and shelf GND: 0.06 inch (1.5 mm), minimum Between signal contacts and shelf GND: 0.06 inch (1.5 mm), minimum |
Mechanical Characteristics
| Signal contacts, fixed: | Size 20 contacts, male contact - 0.040 inch (1.02 mm) diameter. Female contacts are rugged closed entry design. Size 8 contacts, male contact - 0.142 inch (3.61 mm) diameter. Female contacts are closed entry "Large Surface Area" design |
|---|---|
| Contact retention in insulator: | Signal: 9 lbs (40N) Power: 22 lbs (98N) |
| Locking systems: | Jackscrews |
| Mechanical Operations: | 200 operations, minimum |
