NP178 Series (Open Top) Pin Grid Array /Zero Insertion Force (PGA/ZIF - Interstitial) Specifications Part Number (Details) 1,000MW min. at 500V DC Insulation Resistance: Dielectric Withstanding Voltage: 700V AC for 1 minute Contact Resistance: 30m W max. at 10mA/20mV max. Operating Temperature Range: –55°C to +170°C Contact Force: 30g min. per pin at minimun displacement of 0.45mm 90g max. per pin at maximum displacement of 0.8mm NP178 - 644 01 Series No. No. of Contact Pins Design Number Matching IC Diameter /Socket Pin Length 1: L = 3.3 1 : Æ0.35±0.05 2: L = 3.8 2 : Æ0.45±0.05 Materials and Finish Housing: Contacts: Plating: - ** * Polyetherimide (PEI), glass-filled Beryllium Copper (BeCu) Gold over Nickel MF =Flanged Unmarked = Not Flanged Outline Socket Dimensions Recommended PC Board Layout Top View from Socket NP178-64401-*-** D 45.5 26.5 644-Æ0.7 4- Æ2.2 22.45±0.05 23.05±0.05 1.27±0.05 22.86±0.05 1.27x36=45.72±0.1 27.1 1.27 +0.1 0 27.1±0.05 3-Æ1.5 78.00±0.1 26.0±0.05 24.0±0.05 26.5±0.05 A B C 1.27±0.05 +0.1 0 1.27x36=45.72±0.1 14.3±0.05 79.00±0.1 52.0±0.1 3-Æ1.5 +0.1 0 NP178-72002-*-** 1.5 Æ1.45 720-Æ0.7 4- Æ2.2 +0.1 0 28.35±0.05 1.27x38=48.26±0.1 Initial Position of Cover 24.5 1.27±0.05 23.70±0.05 24.30±0.05 4- Æ2.2 +0.1 0 27.75±0.05 1.27±0.05 Æ3.0 Depth 3.0 1.27x38=48.26±0.1 1.30±0.05 +0.1 0 14.75±0.05 18.5 Outline IC Dimensions Pressed Down Position of Cover G E T 0.2 x W 0.5 L: 1 = 3.3 2 = 3.8 H F Part Number Grid Size Pin Count NP178-64401-*-** NP178-72002-*-** 19 x 19 20 x 20 644 720 Test & Burn-In Socket Dimensions C D B A 78.0 79.0 74.0 1.27x36=45.72 75.0 1.27x38=48.26 67.0 69.5 E max. IC Dimensions F G H 50.0 45.72 52.8 48.26 SPECIFICATIONS ARE SUBJECT TO ALTERATION WITHOUT PRIOR NOTICE – DIMENSIONS IN MILLIMETER 2.54~5.9 2.54~5.9 1.27 1.27