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Technical Assistance > PGA / BGA / PLCC Sockets

NEWS

[October 2008] Journee Electronique Mateleco in Toulouse PRECI-DIP participated at the "Journee Electronique Mateleco
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[October 2008] PRECI-DIP was present at the Forum de l'Electronique in Paris in collaboration with Avnet Distributor
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[June 2008] Westwick represented PRECI-DIP in 7th Suzhou Int'l Connectors & Cables Assemblies Exhibition
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PGA/BGA/PLCC sockets


GENERAL SPECIFICATIONS:The values listed below are general specs applying for preci-dip PGA, BGA and PLCC sockets. Please see individual catalog page for additional and product specific technical data.

Operating temperature range: -55 ... +125 °C
Climatic category (IEC): 55/125/21
Operating humidity range: annual mean 75 %
Max working voltage: 100 VRMS/150 VDC (2.54 mm grid)

Preci-dip sockets are recognized by Underwriters Laboratories Inc. and listed under "Connectors for Use in Data, Signal, Control and Power Applications", File Nr. E174442.

Mechanical characteristics
Clip retentionMin. 40 N (no displacement under axial force applied)
Contact (sleeve / clip) retentionMin. 3.3 N acc. to MIL-DTL-83734, pt 4.6.4.2


Electrical characteristics
Insulation resistance between any two adjacent contactsMin. 10'000 MΩ at 500 V AC
Capacitance between any two adjacent contactsMax. 1 pF (PLCC max. 2 pF)
SELF INDUCTANCE PER CONTACT Max. 2 nH


Environmental characteristics
The sockets withstand the following environmental tests without mechanical and electrical defects:
  • Dry heat steady state IEC 60512-11-9.11i / 60068-2-2.Bb: 125 °C, 16h
  • Damp heat cyclic IEC 60512-11-12.11m / 60068-2-30.Db: 25/55 °C, 90 – 100 %rH, 1 cycle of 24 h
  • Cold steady state IEC 60512-11-10.11j / 60068-2-1.A: -55 °C, 2 h
  • Thermal shock IEC 60512-11-4.11d / 60068-2-14.Na: -55/125 °C, 5 cycles 30 min
  • Sinusoidal vibrations IEC 60512-6-4.6d / 60068-2-6.Fc: 10 to 500 Hz, 10 g, 1 octave/min, 10 cycles for each axis
  • Shock IEC 60512-6-3.6c / 60068-2-27.Ea: 50 g, 11 ms, 3 shocks in three axis
During the above two tests no contact interruption >50 ns does appear.
  • Solderability J-STD-002A, Test A, 245°C, 5 s solder alloy SnAg3.8Cu0.7
  • Resistance to soldering heat J-STD-0020C, 260°C, 20 s
  • Moisture sensitivity J-STD-020C level 1
  • Resistance to corrosion:
    1. Salt spray test IEC 60068-2-11.Ka: 48 h
    2. Sulfur dioxide (SO2) test IEC 60068-2-42 Kc: 96 h at 25 ppm SO2, 25 °C, 75 %rH
    3. Hydrogen sulfide (H2S) test IEC 60068-2-43 Kd: 96 h at 12 ppm H2S, 25 °C, 75 %rH


Solderless compliant Press-Fit characteristics
Press-fit characteristics measured acc. to IEC 60352-5
  • Press-in force:
90 N max. (at min. hole dia.) / 65 N typ.
  • Push-out force:
30 N min. (at max. hole dia.) / 50 N typ.
  • Push-out 3rd cycle:
20 N min. (at max. hole dia.)
 
PCB Hole Dimensions
  • 2.54 mm grid
Finished hole Ø: 1 + 0.09/-0.06 mm
Drilled hole Ø: 1.15 ± 0.025 mm
  • Interstitial grid
Finished hole Ø: 0.7 + 0.09/-0.06 mm
Drilled hole Ø: 0.8 ± 0.02 mm
 
PCB Hole Plating
PCB surface finishHole plating
  • Tin
5-15 µm tin over min. 25 µm copper
  • Copper
min. 25 µm copper
  • Gold over nickel
0.05-0.2 µm gold over 2.5-5 µm nickel
over min. 25 µm copper


Packaging
  • Standard connector packaging is card box.
  • SMD mount connectors available on request with Tape & Reel packaging acc. to EIA Standard 481. These products are marked with the symbol
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