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Amphenol Nafi Connector

Amphenol's NAFI connector products include multi-row, through-hole solder "blade" connectors and card extender connectors as well as press fit "tuning fork" backplane connectors. As with our other connector products, a high degree of flexibility is possible to meet specific density and layout requirements. Rugged, metal header bodies are custom-machined and include finishes such and anodizing and chromating.

Amphenol's NAFI connector technologies are tested and qualified to MIL-C-28859 and MIL-C-28754. The focal point of Amphenol's NAFI backplane technology is the solderless "Dynamic Retention" gas tight, press-fit tuning fork contact design. Connector patterns containing multiple rows of contacts are easily produced and can include standard NAFI-style features such as guide pins and D- and V-shaped polarizing keys.

Amphenol's M Series male blade connectors are available with two, three, four and five rows of contacts. The aluminum frame is available in many configurations or is custom designed to meet specific customer requirements which can include coax, fiber-optic and power contacts. The gold plated contact tails are solder coated for ease of application to the daughtercard. The blade contacts can be oriented standar (blade parallel to daughtercard) or reverse (blade perpendicular to daughtercard). The components used by Amphenol have been designed to meet the requirements of MIL-C-28754.

Amphenol's FM series flexible circuit male blade connectors are designed to meet a wide variety of surface mount module designs. The FM series connectors can be packaged in up to five rows. The standard NAFI interface is maintained while the flexible circuit traces provide the link to the module. The flexible circuit terminations allows for hand soldering or various automate surface mount soldering processes. The aluminum frame is available in many configurations or is custom designed to meet specific customer requirements which can include coax, fiber-optic and power contacts.

NAFI Operating Characteristics

For standard NAFI connectors, click here to download our catalog.

Temperature Range
-55°C to + 125°C
Current Rating (Max)
3 amps (continuous)
Voltage Rating (Min)
1,000 V (RMS) at 60 Hz
Insulation Resistance (Min)
10,000 Megohms
Contact Resistance (Max)
6 milliohms
Contact-to-Backplane Retention Force (Min)
7.5 lb
Contact Life (durability)
500 cycles
Contact Engagement Force (6 ounce contact available)
2.25 ounce average
Torque Resistance
3 inch-ounces minimum

NAFI Environmental Characteristics

Salt Spray (corrosion)
MIL-STD-1344
Method 1001, Test Condition B
Thermal Shock
MIL-STD-1344
Method 1003, -55°C to +125°C
Humidity
MIL-STD-810
Method 507, Procedure 1
Physical Shock
MIL-STD-202
Method 213
Vibration (random)
MIL-STD-1344
Method 2005, 10-2000Hz, 15g peak

NAFI Materials and Finishes/ Daughtercard Connector

Frame Material Aluminum alloy, 6061-T6 per QQ-A-200/8
Frame Finish Black anodize per MIL-A-8625, Type II, Class II, or Gold or Clear Chromate per MIL-C-5541
Contact Material Brass per ASTM B36
Contact Finish 0.00005 inch (minimum) gold per MIL-G-45204 over 0.000100 inch (minimum) nickel per QQ-N-290. Solder coated tail 60/40 tin-lead.
Insulator Material Polyphenylene Sulfird (PPS) per MIL-M-24519. High Temperature nylon 6-6 per MIL-M-20693
Flex Circuit 3 ounce 1/2 hard copper per IPC-CF-150/7-CUW7-3SS3 with 0.001 inch polyimide per IPC-FC-231-1, meeting the requirements of MIL-P-50884.
Polarizing Key/Guide Pin Stainless steel, type 303 per ASTM A 582, passivated

Backplane Connector

Contact Material Beryllium Copper
Contact Finish 0.00050 inch (minimum) gold per MIL-G-45204 over 0.000100 inch (minimum) nickel per QQ-N-290
Insulator Material Polyester, glass-reinforced (30%) per MIL-M-24519, Type GPT-30F, flame-retardant per UL Bulletin 94-V-0
Polarizings Bushings Sintered stainless steel per ASTM B582, passivated

 

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