Materials and Finishes
| Insulator: | |
|---|---|
| SND Series: | Glass-filled DAP per ASTM-D-5948, Type SDG-F, UL 94V-0, ASTM E-595, NASA-RP-1124, green color. |
| SDD Series: | Glass-filled polyester per MIL-M-24519, UL 94V-0, ASTM E-595, NASA-RP-1124, blue color. |
| SCBM, SCBC Series: | Glass-filled polyester per MIL-M-24519, UL 94V-0, ASTM E-595, NASA-RP-1124, blue color. |
| Contacts: | |
| SND Series: | Male contacts: Precision-machined brass alloy Female contacts: Precision-machined high tensile copper alloy with brass shroud |
| SDD Series: | Male contacts: Precision-machined high tensile copper alloy Female contacts: Precision-machined high tensile copper alloy with brass shroud |
| SCBM Series: | Male signal contacts: Precision-machined brass alloy Female signal contacts: Precision-machined high tensile phosphor bronze with brass shroud Power contacts: Machined of high conductivity copper alloy for both male and female contacts Shielded male contacts: Precision-machined brass Shielded female contacts: Precision-machined high tensile phosphor bronze |
| SCBC Series: | Male signal contacts: Precision-machined brass alloy Female signal contacts: Precision-machined high tensile copper alloy with brass shroud, closed-entry design Power contacts: Machined of high conductivity copper alloy for both male and female contacts Shielded contacts: Precision-machined copper alloy - retainers of beryllium copper |
| Contact Plating: | 0.000050 inch (1.27 µ) gold over copper plate |
| Shells: | Brass with 0.000050 inch (1.27 µ) gold over copper plate |
| Lightweight Shell Option: | Aluminum with 0.000050 inch (1.27 µ) gold over non-magnetic electroless nickel. |
| Mounting Spacers and Brackets: | Brass with 0.000050 inch (1.27 µ) gold over copper plate |
| Lightweight Spacer Option | Aluminum with 0.000050 inch (1.27 µ) gold over non-magnetic electroless nickel. |
| Lightweight Bracket Option | Glass-filled polyester per MIL-M-24519, UL 94V-0 blue color. |
| Push-on Fasteners: | Phosphor bronze or beryllium copper with 0.000050 inch (1.27 µ) gold over copper plate |
| Jackscrews Systems: | Brass with 0.000050 inch (1.27 µ) gold over copper plate |
| Hoods: | Brass with 0.000050 inch (1.27 µ) gold over copper plate or aluminum with yellow chromate conversion or black anodize finish |
Electrical Characteristics
| Contact Current Rating: | |
|---|---|
| SND Series: | 7.5 amps nominal |
| SDD Series: | 5 amps nominal |
| SCBM, SCBC Series: | Signal contacts - 7.5 amps nominal Power contacts - 10, 15, 20, 30, and 40 amps nominal |
| Initial Contact Resistance: | |
| SND, SDD Series: | 0.005 ohms maximum |
| SCBM, SCBC Series: | Signal contacts - 0.008 ohms maximum Power contacts - 0.0005 ohms maximum Shielded contacts - 0.008 ohms maximum |
| Nominal Impedance (Shielded contacts): | SCBM, SCBC Series: 50 ohms |
| Insertion Loss (Shielded contacts): | SCBM, SCBC Series: -0.46 dB at 1 GHz -1.5 dB at 2 GHz |
| VSWR (Shielded contacts): | SCBM, SCBC Series: 1.15 average at 1 GHz 1.56 average at 2 GHz |
| *Above values measured using frequency domain techniques | |
| Proof Voltage: | 1000 V r.m.s. |
| Insulator Resistance: | 5 G ohms |
| Clearance and Creepage Distance: | SND Series: 0.039 inch (1.0 mm) minimum SDD Series 0.042 inch (1.06 mm) minimum SCBM, SCBC Series 0.039 inch (1.0 mm) minimum |
| Working Voltage: | 300 V r.m.s. |
| Residual Magnetism: | 20 Gamma maximum |
Climatic Characteristics
| Temperature Range: | -55°C to +125°C |
|---|---|
| Damp Heat, Steady State: | 21 days |
Mechanical Characteristics
| Fixed Contacts: | |
|---|---|
| SND Series: | Size 20 contacts. Male contact: 0.040 inch (1.02 mm) diameter. |
| Female contact: | Closed entry design with brass shroud. |
| SDD Series: | Size 22 contacts. Male contact: 0.030 inch (0.76 mm) diameter. Female contact: Closed entry design with brass shroud. |
| SCBM Series: | Size 20 contacts. Male contact: 0.040 inch (1.02 mm) diameter. Female contact: Closed entry design with brass shroud. |
| SCBC Series: | No fixed contacts. |
| Removable contacts: | |
| SND Series: | Insert contact to rear face of insulator and release from rear face of insulator. Size 20 contacts. Male contact: 0.040 inch (1.02 mm) diameter. Female contact: Closed entry design with brass shroud. |
| SDD Series: | Insert contact to rear face of insulator and release from rear face of insulator. Size 22 contacts. Male contact: 0.030 inch (0.76 mm) diameter. Female contact: Closed entry design with brass shroud. |
| SCBM Series: | Power removable contacts: Size 8 contacts. Male contact: 0.142 inch (3.61 mm) diameter. Female contact: Features Large Surface Area (LSA) closed entry design utilizing BeCu mechanical retention member. Male and female contacts have terminations for wire sizes 8, 12, and 16 AWG. |
| SCBC Series: | Signal removable contacts: Size 20 contacts. Male contact: 0.040 inch (1.02 mm) diameter. Female contact: Closed entry design with brass shroud. Power removable contacts: Size 8 contacts. Male contact: 0.142 inch (3.61 mm) diameter. Female contact: Features Large Surface Area (LSA) closed entry design utilizing BeCu mechanical retention member. Male and female contacts have terminations for wire sizes 8, 12, and 16 AWG. |
| Contact Retention In Insulator: | SND, SDD Series: 9 lbs. (40 N) SCBM, SCBC Series: Signal contacts: 9 lbs. (40 N). Power contacts: 22 lbs. (98 N). |
| Resistance to Solder Iron Heat: | SND Series: 650°F (350°C) for 10 seconds duration per IEC 512-6, solder cup contacts. SCBM Series: 500°F (260°C) for 10 seconds duration per IEC 512-6. |
| Contact Terminations: | SND Series: Closed Barrel Crimp: Wire sizes 20 AWG (0.5mm²) through 30 AWG (0.05mm²). Solder contacts: 0.042 inch (1.06 mm) minimum hole diameter in solder syle contact for 20 AWG (0.5mm2) wire maximum. Straight printed board mount: 0.028 inch (0.71mm) diameter and 0.024 inch (0.61 mm) diameter. Right angle printed board mount: 0.028 (0.71 mm) diameter for inch system footprint and 0.024 inch (0.64 mm) diameter for European metric footprint. SDD Series: Closed Barrel Crimp: Wire sizes 22 AWG (0.3mm²) through 30 AWG (0.05mm²). 0.020 inch (0.51 mm) diameter straight and right angle printed board mount contact terminations. SCBM Series: Signal solder contacts: 0.042 inch (1.06 mm) minimum hole diameter for 20 AWG (0.5mm²) wire, maximum. Signal straight printed board mount: 0.028 inch (0.71 mm) diameter. Signal right angle printed board mount: 0.028 inch (0.71 mm) diameter. Power printed board mount: Size 8 contacts. Male contact: 0.142 inch (3.61 mm) diameter. Printed board terminations with 0.078 (1.98 mm) and 0.125 inch (3.18 mm) diameters. Shielded contacts available - contact factory. SCBC Series: Crimp removable only. Closed barrel crimp, wire size 20 AWG (1.0mm²) through 30 AWG (0.05mm²). Shielded contacts available - contact factory. |
| Shells: | Male shells may be dimpled for EMI / ESD ground paths. |
| Polarization: | Trapezoidally shaped shells and polarized jackscrews. |
| Mounting to Angle Brackets: | Jackscrews and riveted fasteners with 0.120 inch (3.05 mm) clearance hole, and threaded riveted fasteners with 4-40 thread and polyester lock inserts. |
| Mounting to Printed Board: | SND, SDD, SCBM Series: Rapid installation push-on fasteners and mounting posts. |
| Locking Systems: | Jackscrews: |
| Mechanical Operations: | 1000 operations minimum per IEC 512-5 |
