4 Diodes
Marking Guide
5
■ TO-3PF, FM100 type
1
■ Axial (A0)
q
Part Number (abbreviation)
The AM01 is indicated as “M.”
qPart Number: Full name
w
Polarity: Rectifier Symbol
wClass
Z: 200V None: 400V A: 600V
FMXA4203
5 9 0 5
➀
➁
➂
➃
eLot No.
First letter: Year (Last digit of year)
Second letter: Month (1 to 9, O, N, D)
Third and fourth letters: Day
Laser marking or White ink marking
M A
B: 800V C: 1000V
eManufacturing date
First letter: Year (Last digit of year)
Second letter: Month (1 to 9, O, N, D)
rCathode band: Continuous band
Color of the band: White(Yellow for AU02 series)
(1-chip type)
FMQ-G5GS
➀ ➁
➂
➀
➁
➂
2
■ Axial (E0, E1)
qPart Number (abbreviation)
EM01, EM2, EM1 are indicated as MO, M2
and M1, respectively.
6 9 0 5
MO
C
➀
➁
➂
➃
w
Class
Z: 200V None: 400V A: 600V
B: 800V C: 1000V F: 1500V
But EU02A is indicated as A2 and EU2YX as Y.
Manufacturing date
87
6
■ Surface-Mount (SJP)
e
qPart Number
First letter: Year (Last digit of year)
Second letter: Month (1 to 9, O, N, D)
Manufacturing period
Cathode band
Color: White
wPolarity: Rectifier Symbol
eLot No.
r
•
First letter: Year (Last digit of year)
Second letter: Month (1 to 9, O, N, and D)
Third and fourth letters: Day
First 10 days of month
••
Middle 10 days of month
•••
Last 10 days of month
7
■ Surface-Mount (D pack)
3
■ Axial (R1, R2, R3, R4)
qPart Number
qPart Number: 2 set marking
wPolarity: Rectifier Symbol
w
Manufacturing date and period: 2 set marking
First letter: Year (Last digit of year)
Second letter: Month (1 to 9, O, N, D)
First 10 days of month
B 64S
➀
➁
e
Lot No.
First letter: Lot code
➂
➀
Second letter: Year (Last digit of year)
Third letter: Month (A to M except I)
•
A
6 H
➂
RK44
96
••
Middle 10 days of month
•••
e
Last 10 days of month
➁
Cathode band
White: For Power Supply and SBD
Color of
the band:
8
Yellow: For Medium speed
■ Surface-Mount (TO-220S)
Red: For Fast and ultrafast
qPart Number
w
Polarity: Rectifier Symbol
E 29G
9C1
■4 TO-220F type
➀
➁
➂
eLot No.
qPart Number
First letter: Year (Last digit of year)
Second letter: Month (A to M except I)
Third letter: Week
FMU-12S is indicated as “FMU12S.”
w
e
Polarity: Rectifier Symbol
Lot No.
FMU12S
➀
First letter: Year (Last digit of year)
Second letter: Month (1 to 9, O, N, D)
Third and fourth letters: Day
➁
➂
8512
9
■ SZ-10 Series
Laser marking or White ink marking
qPart Number
wLot No.
First letter: Year (Last digit of year)
Second letter: Month (1 to 9, O, N, and D)
Third letter: Day
qPart Number: Excluding last letter
(1-chip type)
FML-G12S is indicated as “FML-G12.”
w
e
r
Last letter of Part Number
Polarity: Rectifier Symbol
Lot No.
FMLG12
S
➀
➂
➃
➁
First letter: Year (Last digit of year)
Second letter: Month (1 to 9, O, N, D)
Third and fourth letters: Day
0125
10
■ Silicon Varistors
Laser marking or White ink marking
Refer to P213
Diodes
202
ETC [ ETC ]
