Materials and Finishes
| Insulator: | MD, ED, SD: Nylon resin, UL 94V-0, black ORD, RD, HDC: Glass filled DAP per ASTM-D-5948, SDG-F, UL 94V-0, green color |
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| Contacts: | |
| Male contacts: | Precision machined copper alloy |
| Female contacts: | MD, ED, SD - Precision machined high tensile phosphor bronze RD, ORD, HDC- Precision machined high tensile copper alloy available with stainless steel shroud. |
Thermocouple contacts - crimp and PCB mount:
| Type | Material | Color Code |
|---|---|---|
| K | Chromel (+) | White |
| Alumel (-) | Green | |
| T | Copper (+) | Red |
| Constantan (-) | Yellow | |
| E | Chromel (+) | White |
| Constantan (-) | Yellow |
| Contact Plating: | |
|---|---|
| MD, ED, SD, ORD: | Gold flash over nickel plate. Other finishes available upon request. |
| RD, HDC: | Industrial Performance - Gold flash over nickel plate. Other finishes available upon request. Military Performance - 0.000050 inch (1.25 µ) gold over copper plate. Other finishes available upon request. |
| Shells: | Steel with tin plate; zinc and cadmium plate with dichromate seal, stainless steel, passivated. Other material and finishes available upon request. |
| Mounting Spacers: | Nylon plastic, or brass, zinc plate with dichromate seal |
| Mouting Brackets: | MD, ED, HDC Series - Nylon plastic, or brass, zinc plate with dichromate seal or tin plate |
| Jackscrew Systems: | Steel or brass with zinc plate and dichromate seal, or clear zinc plate, stainless steel available |
| Push-On Fasteners: | MD, ED, SD, HDC Series - Phosphor bronze or beryllium copper with tin plate |
| Vibration Lock Systems: | Slide lock and lock tabs, steel with nickel plate |
| Hoods: | Thermoplastic UL 94V-0. Composite, brass or steel with zinc plate and dichromate seal, die cast zinc available |
| Non-magnetic versions are available. Contact Technical Sales. | |
Electrical Characteristics
| Contact Current: | 7.5 amperes nominal |
|---|---|
| Initial Contact Resistance: | MD, ED, SD - 0.008 ohms maximum ORD, RD, HDC - 0.005 ohms maximum |
| Proof Voltage: | 1000 V r.m.s. |
| Insulator Resistance: | 5 G ohms |
| Clearance and Creepage Distance (minimum): | 0.039 inch (1.0 mm) |
| Working Voltage: | 300 V r.m.s. |
Climatic Characteristics
| Temperature Range: | -55°C to +125°C |
|---|---|
| Damp Heat, Steady State: | MD, ED, SD, ORD - 10 days RD - 21 days HDC - 56 days |
| MD Series connectors can be supplied with interfacial seals and sealed between shell and insulator. This provides an additional degree of moisture resistance. | |
Mechanical Characteristics
| Contacts: | MD, ED - Size 20 fixed contacts, male contact - 0.040 inch (1.02 mm) diameter. Female contact - rugged open entry design. SD, ORD - Size 20 removable contacts - insert contact to rear face of insulator and release from rear face of insulator. Male contact - 0.040 inch (1.02 mm), female contact - rugged Robi-D open entry design. RD - Size 20 removable contacts - insert contact to rear face of insulator and release from rear face of insulator. Male contact - 0.040 inch (1.02 mm), female contact - closed entry design with stainless steel shroud or rugged Robi-D open entry design. HDC - Size 20 fixed contacts - male contact - 0.040 inch (1.02 mm), female contact - closed entry design with stainless steel shroud. |
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