3-1. Model name
(SP, SPV, SPR)
Hitachi High-voltage IC
3-2. Production lot number
It shows by two digits or less (alphabetical character).
Lead (Pb) Free: Last digit is Marked as “F”
Quality control number.
It shows by one digit or two digits. (Numerals from 1 to 9,
alphabetical character (except O and I) or space is used.)
Assembled month as shown in below
January, A; February, B; March, C; April, D; May, E; June, K;
July, L; August, M; September, N; October, X; November, Y;
and December, Z
Least significant digit of Assembled year (A.D.)
J A PA N
Fig. 3-1. Marking diagram