Plastic Packages for Integrated Circuits Shrink Small Outline Plastic Packages (SSOP) M20.209 (JEDEC MO-150-AE ISSUE B) N 20 LEAD SHRINK SMALL OUTLINE PLASTIC PACKAGE INDEX AREA H 0.25(0.010) M B M INCHES E -B1 2 3 0.25 0.010 SEATING PLANE -A- SYMBOL GAUGE PLANE A D -C- α e C 0.10(0.004) C A M B S MILLIMETERS MIN MAX NOTES A 0.068 0.078 1.73 1.99 0.002 0.008’ 0.05 0.21 A2 0.066 0.070’ 1.68 1.78 B 0.010’ 0.015 0.25 0.38 C 0.004 0.008 0.09 0.20’ D 0.278 0.289 7.07 7.33 3 E 0.205 0.212 5.20’ 5.38 4 0.026 BSC 0.301 0.311 7.65 7.90’ L 0.025 0.037 0.63 0.95 8 deg. 0 deg. α 20 0 deg. 9 0.65 BSC H N NOTES: MAX A1 e A2 A1 B 0.25(0.010) M L MIN 6 20 7 8 deg. Rev. 3 11/02 1. Symbols are defined in the “MO Series Symbol List” in Section 2.2 of Publication Number 95. 2. Dimensioning and tolerancing per ANSI Y14.5M-1982. 3. Dimension “D” does not include mold flash, protrusions or gate burrs. Mold flash, protrusion and gate burrs shall not exceed 0.20mm (0.0078 inch) per side. 4. Dimension “E” does not include interlead flash or protrusions. Interlead flash and protrusions shall not exceed 0.20mm (0.0078 inch) per side. 5. The chamfer on the body is optional. If it is not present, a visual index feature must be located within the crosshatched area. 6. “L” is the length of terminal for soldering to a substrate. 7. “N” is the number of terminal positions. 8. Terminal numbers are shown for reference only. 9. Dimension “B” does not include dambar protrusion. Allowable dambar protrusion shall be 0.13mm (0.005 inch) total in excess of “B” dimension at maximum material condition. 10. Controlling dimension: MILLIMETER. Converted inch dimensions are not necessarily exact. 1