CREATE TABLE table_name_1 (lead_pitch_mm INTEGER, part_number VARCHAR(255), body_length_mm VARCHAR(255))
Which Lead Pitch/mm has a Part Number of tsop40, and a Body Length/mm larger than 18.4?
    
SQL: SELECT MAX(lead_pitch_mm) FROM table_name_1 WHERE part_number = "tsop40" AND body_length_mm > 18.4