1N957B_04 Datasheet, PDF (4/5 Pages) Fairchild Semiconductor – Zeners General Purpose Diodes

Top Mark Information (Continued)
F
1^st line: F - Fairchild Logo
522
2^nd line: Device Name - 3^rd to 5^th characters of the device name.
or 4^th to 6^th characters for BZXyy series
9B
3^rd line: Device Name - 6^th to 7^th characters of the device name.
or Voltage rating for BZXyy series
XY
4^th line: Device Code or - Two Digit - Six Weeks Date Code.
Date code plus or Two Digit - Six Weeks Date Code
Large die identification plus Large die identification, “L”
General Requirements:
1.0 Cathod Band
2.0 First Line: F - Fairchild Logo
3.0 Second Line: Device name - For 1Nxx series: 3^rd to 5th characters of the device name.
For BZxx series: 4^th to 6^th characters of the device name.
4.0 Third Line: Device name - For 1Nxx series: 6^th to 7^th characters of the device name.
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
©2004 Fairchild Semiconductor Corporation
1N957B - 1N991B, Rev. E2