Continental Device India Limited
An IS/ISO 9002 and IECQ Certified Manufacturer
SOT-23 Formed SMD Package
IS/ISO 9002
Lic# QSC/L- 000019.2
IS / IECQC 700000
IS / IECQC 750100
CMBZ52XX series
SILICON PLANAR ZENER DIODES
General purpose zener diodes
Pin configuration
1 = ANODE
2 = NC
3 = CATHODE
PACKAGE OUTLINE DETAILS
ALL DIMENSIONS IN m
m
2
1
3
Marking
CMBZ5230B
31B
32B
33B
34B
35B
36B
37B
38B
=
=
=
=
=
=
=
=
=
8E
8F
8G
8H
8J
8K
8L
8M
8N
CMBZ5239B =
40B =
41B =
42B =
43B =
44B =
45B =
46B =
47B =
8P
8Q
8R
8S
8T
8U
8V
8W
8X
CMBZ5248B = 8Y
49B = 8Z
50B = 81A
51B = 81B
52B = 81C
53B = 81D
54B = 81E
55B = 81F
56B = 81G
CMBZ5257B= 81H
ABSOLUTE MAXIMUM RATINGS
Working voltage range
Working voltage tolerance
Total power dissipation up to T
amb
= 25 °C
Junction temperature
V
Z
P
tot
T
j
nom. 4.7 to 33
±5
max.
300
max.
150
V
%
mW
°C
Continental Device India Limited
Data Sheet
Page 1 of 3
CMBZ52XX series
RATINGS
(at T
A
= 25°C unless otherwise specified)
Limiting values
Total power dissipation up to T
amb
= 25 °C*
Total power dissipation up to T
amb
= 25 °C**
Storage temperature
Junction temperature
THERMAL RESISTANCE
From junction to ambient
From junction to ambient
CHARACTERISTICS
T
j
= 25 °C unless otherwise specified
V
F
= 0.9V Max. @ I
F
= 10 mA
Device
Zener
Voltage
V
Z
(± 5%)
Nominal
4.7
5.1
5.6
6.0
6.2
6.8
7.5
8.2
8.7
9.1
10
11
12
13
14
15
16
17
18
19
20
22
Test
Current
I
ZT
mA
20
20
20
20
20
20
20
20
20
20
20
20
20
9.5
Z
ZK
I
Z
=0.25mA
ohm max
P
tot
P
tot
T
stg
T
j
max.
max.
–55 to
max.
300
225
–150
150
mW
mW
°C
°C
R
th j–a
R
th j–a
417 °C/W
556 °C/W
Z
ZT
I
Z
= I
ZT
@10% Mod
ohm max
19
17
11
7.0
7.0
5.0
6.0
8.0
8.0
10
17
22
30
13
Max
I
R
uA
max
5.0
5.0
5.0
5.0
5.0
3.0
3.0
3.0
3.0
3.0
3.0
2.0
1.0
0.5
@ V
R
(V)
CMBZ-5230B
CMBZ-5231B
CMBZ-5232B
CMBZ-5233B
CMBZ-5234B
CMBZ-5235B
CMBZ-5236B
CMBZ-5237B
CMBZ-5238B
CMBZ-5239B
CMBZ-5240B
CMBZ-5241B
CMBZ-5242B
CMBZ-5243B
CMBZ-5244B
CMBZ-5245B
CMBZ-5246B
CMBZ-5247B
CMBZ-5248B
CMBZ-5249B
CMBZ-5250B
CMBZ-5251B
1900
1600
1600
1600
1000
750
500
500
600
600
600
600
600
600
2.0
2.0
3.0
3.5
4.0
5.0
6.0
6.5
6.5
7.0
8.0
8.4
9.1
9.9
9.0
8.5
7.8
7.4
7.0
6.6
6.2
5.6
600
600
600
600
600
600
600
600
15
16
17
19
21
23
25
29
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
10
11
12
13
14
14
15
17
* Device mounted on a ceramic alumina of 8 mm × 10 mm × 0.7 mm
** Device mounted on an FR5 printed circuit board
Continental Device India Limited
Data Sheet
Page 2 of 3
CMBZ52XX series
Device
Zener
Voltage
V
Z
(± 5%)
Nominal
24
25
27
28
30
33
Test
Current
I
ZT
mA
5.2
5.0
4.6
4.5
4.2
3.8
Z
ZK
I
Z
=0.25mA
ohm max
Z
ZT
I
Z
= I
ZT
@10% Mod
ohm max
33
35
41
44
49
58
Max
I
R
uA
max
@ V
R
(V)
CMBZ-5252B
CMBZ-5253B
CMBZ-5254B
CMBZ-5255B
CMBZ-5256B
CMBZ-5257B
600
600
600
600
600
700
0.1
0.1
0.1
0.1
0.1
0.1
18
19
21
21
23
25
Disclaimer
The product information and the selection guides facilitate selection of the CDIL's Discrete Semiconductor Device(s) best suited
for application in your product(s) as per your requirement. It is recommended that you completely review our Data Sheet(s) so as
to confirm that the Device(s) meet functionality parameters for your application. The information furnished on the CDIL Web Site/
CD is believed to be accurate and reliable. CDIL however, does not assume responsibility for inaccuracies or incomplete
information. Furthermore, CDIL does not assume liability whatsoever, arising out of the application or use of any CDIL product;
neither does it convey any license under its patent rights nor rights of others. These products are not designed for use in life
saving/support appliances or systems. CDIL customers selling these products (either as individual Discrete Semiconductor
Devices or incorporated in their end products), in any life saving/support appliances or systems or applications do so at their own
risk and CDIL will not be responsible for any damages resulting from such sale(s).
CDIL strives for continuous improvement and reserves the right to change the specifications of its products without prior notice.
CDIL is a registered Trademark of
Continental Device India Limited
C-120 Naraina Industrial Area, New Delhi 110 028, India.
Telephone + 91-11-579 6150 Fax + 91-11-579 9569, 579 5290
e-mail sales@cdil.com
www.cdil.com
Continental Device India Limited
Data Sheet
Page 3 of 3
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