ZENER DIODE
Description
Diodes
Zener diode
PTZ Series
PTZ Series
!Applications 1) Voltage regulation and voltage limiting.
2) Voltage surge absorption.
!Features 1) Small surface mounting type.
(PMDS) 2) 1W of power can be obtained despite compact size.
3) High surge withstand level.
!Construction Silicon epitaxial planar
!External dimensions (Units : mm)
1.
5±0.
2 CATHODE MARK
4.
5±0.
2 1.
2±0.
3
5.
0±0.
3
0∼0.
1
2.
6±0.
2
ROHM : PMDS EIAJ : − JEDEC : SOD-106
0.
1
+0.
02 −0.
1
2.
0±0.
2
Model name (voltage rank) Date of manufacture Ex.
1999.
12→9.
C
!Absolute maximum ratings (Ta=25°C)
Parameter
Symbol
Limits
Unit
Power dissipation ∗
P
1
W
Junction temperature
Tj
150
°C
Storage temperature
Tstg
−55~+150
°C
∗ Mounting density of other power components should be taken into consideration when laying out the pattern.
!Marking (Voltage rank)
Type No.
PTZ3.
6B PTZ3.
9B PTZ4.
3B PTZ4.
7B PTZ5.
1B PTZ5.
6B PTZ6.
2B PTZ6.
8B PTZ7.
5B
(Ex.
) PTZ3.
6B
3.
6 B 3.
9 B 4.
3 B 4.
7 B 5.
1 B 5.
6 B 6.
2 B 6.
8 B 7.
5 B
Type No.
PTZ8.
2B PTZ9.
1B PTZ10B PTZ11B PTZ12B PTZ13B PTZ15B PTZ16B PTZ18B
8.
2 B 9.
1 B 10 B 11 B 12 B 13 B 15 B 16 B 18 B
Type No.
PTZ20B PTZ22B PTZ24B PTZ27B PTZ30B PTZ33B PTZ36B
− −
20 B 22 B 24 B 27 B 30 B 33 B 36 B
− −
3.
6B 9C
Zener voltage category Year of manufacture: last digit of Western calendar
Month of manufacture
Ex.
) PTZ3.
6B 1999 Dec.
Month Jan.
Feb.
Mar.
Apr.
May Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
Symbol 1 2 3 4 5 6 7 8 9 O A C
Diodes
!Electrical characteristics (Ta=25°C)
Zener voltage subdivision
Operating resistance
Reverse current
Type PTZ 3.
6B
Min.
3.
600
VZ (V) Max.
4.
000
IZ (mA)
40
ZZ (Ω)
Max.
IZ (mA)
15
40
IR (µA)
Max.
VR (V)
20
1.
0
PTZ 3.
9B
3.
900
4.
400
40
15
40
20
1.
0
PTZ 4.
3B
4.
300
4.
800
40
15
40
20
1.
0
PTZ 4.
7B
4.
700
5.
200
40
10
40
20
1.
0
PTZ 5.
1B
5.
100
5.
700
40
8
40
20
1.
0
PTZ 5.
6B
5.
600
6.
300
40
8
40
20
1.
5
PTZ 6.
2B
6.
200
7.
000
40
6
40
20
3.
0
PTZ 6.
8B
6.
800
7.
700
40
6
40
20
3.
5
PTZ 7.
5B
7.
500...
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