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HCF1305-2R2-R 数据表(PDF) 33 Page - Microchip Technology |
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HCF1305-2R2-R 数据表(HTML) 33 Page - Microchip Technology |
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33 / 39 page ![]() 2025-2026 Microchip Technology Inc. and its subsidiaries DS20007043B-page 33 MIC24054 RECOMMENDED LAND PATTERN Dimension Limits Units Center Pad Length Contact Pitch Y2 MILLIMETERS 0.65 BSC MIN E MAX NOM 1 2 28 BSC: Basic Dimension. Theoretically exact value shown without tolerances. Notes: Dimensioning and tolerancing per ASME Y14.5M For best soldering results, thermal vias, if used, should be filled or tented to avoid solder loss during reflow process 1. 2. For the most current package drawings, please see the Microchip Packaging Specification located at http://www.microchip.com/packaging Note: C1 C2 EV X2 EV Y2 Y3 G2 Y1 G1 G3 G4 G5 X3 X4 X1 G6 Center Pad Width X2 3.70 Center Pad Width X3 2.20 Center Pad Width X4 0.90 1.60 2.83 Dimension Limits Units C2 Contact Pad Spacing MILLIMETERS MIN MAX 5.80 Contact Pad Length Contact Pad Width Y1 X1 0.40 0.30 NOM C1 Contact Pad Spacing 4.80 Contact Pad to Contact Pad G2 0.35 Thermal Via Diameter V Thermal Via Pitch EV 0.30 1.00 Contact Pad to Center Pad G1 0.12 Center Pad Length Y3 ØV E Contact Pad to Center Pad G4 0.60 Center Pad to Center Pad G3 0.35 Center Pad to Center Pad G5 0.13 Contact Pad to Center Pad G6 0.35 SILK SCREEN 28-Lead Very Thin Plastic Quad Flat, No Lead Package (PKA) - 5x6x0.9 mm Body [VQFN] With Multiple Exposed Pads and Fused Terminals; Micrel Legacy QFN56-28LD-PL-1 Microchip Technology Drawing C04-3120 Rev A |
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