©2004 Fairchild Semiconductor Corporation

1N4370A - 1N4372A 1N746A - 1N759A, Rev. C1

General Requirements:

1.0 Cathod Band

2.0 First Line: F - Fairchild Logo

For BZXyy series: Voltage rating

5.0 Fourth Line: XY or XYL - Two Digit - Six Weeks Date Code

Where: X represents the last digit of the calendar year

Y represents the Six weeks numeric code

L represents the Large die identification

6.0 Devices shall be marked as required in the device specification (PID or FSC Test Spec).

7.0 Maximum no. of marking lines: 4

8.0 Maximum no. of digits per line: 3

9.0 FSC logo must be 20 % taller than the alphanumeric marking and should occupy the 2 characters of the specified line.

10.0 Marking Font: Arial (Except FSC Logo)

11.0 First character of each marking line must be aligned vertically

F

522

9B

XY

or Voltage rating for BZXyy series

Date code plus or Two Digit - Six Weeks Date Code

Large die identification plus Large die identification, “L”