CYStech Electronics Corp.
Spec. No. : C326SM
Issued Date : 2003.07.31
Revised Date :
Page No. : 1/3
ZMM55CXXSM series
CYStek Product Specification
Surface Mount Zener Voltage Regulators
ZMM55CXXSM
Descriptions
This is a complete series of zener diodes with limits and excellent operating characteristics that reflect the
the superior capabilities of silicon-oxide passivated junctions. It is designed for use in hybrid thick and thin
film circuits.
Maximum Ratings
Characteristics Symbol
Max
Unit
Total Device Dissipation @T
A
=25
P
tot
500 mW
Storage Temperature
Tstg
-65 to +175
C
Junction Temperature
Tj
175
C
Mini-Melf
CYStech Electronics Corp.
Spec. No. : C326SM
Issued Date : 2003.07.31
Revised Date :
Page No. : 2/3
ZMM55CXXSM series
CYStek Product Specification
Electrical Characteristics
(T
L
=30, unless otherwise noted, V
F
=1.0V Max @I
F
=100mA for all types.)
Test
Current
Maximum Zener
Impedance
(Note 2)
Maximum Reverse
Leakage Current
Device
Nominal
Zener
Voltage
Vz at Iz
T
(V)
(Note1)
I
ZT
(mA)
Z
ZT
at
I
ZT
()
Z
ZK
at
I
ZK
=1mA
()
Typical
Temperature
Coefficient
(%/)
I
R
(A)
Test
Voltage
(V)
Maximum
Regulation
Current
I
ZM
(mA)
(Note 3)
ZMM55C2V4 2.28-2.56 5
85 600
-0.070
50
1.0
150
ZMM55C2V7
2.5-2.9 5 85 600 -0.070
10 1.0 135
ZMM55C3V0
2.8-3.2 5 85 600 -0.070
4 1.0 125
ZMM55C3V3
3.1-3.5
5
85 600 -0.065 2 1.0
115
ZMM55C3V6
3.4-3.8
5
85 600 -0.060 2 1.0
105
ZMM55C3V9
3.7-4.1
5
85 600 -0.050 2 1.0
95
ZMM55C4V3
4.0-4.6
5
75 600 -0.025 1 1.0
90
ZMM55C4V7
4.4-5.0
5
60 600 -0.010 0.5 1.0
85
ZMM55C5V1
4.8-5.4
5
35 550 +0.015 0.1 1.0
80
ZMM55C5V6
5.2-6.0
5
25 450 +0.025 0.1 1.0
70
ZMM55C6V2 5.8-6.6 5
10 200 +0.035 0.1 2.0
64
ZMM55C6V8 6.4-7.2 5
8 150 +0.045 0.1 3.0 58
ZMM55C7V5 7.0-7.9 5 7 50
+0.050 0.1
5.0
53
ZMM55C8V2 7.7-8.7 5 7 50
+0.050 0.1
6.0
47
ZMM55C9V1 8.5-9.6 5 10 50
+0.060 0.1
7.0
43
ZMM55C10 9.4-10.6 5 15 70
+0.070 0.1 7.5
40
ZMM55C11
10.4-11.6 5 20 70 +0.070 0.1 8.5
36
ZMM55C12
11.4-12.7 5 20 90 +0.070 0.1
9.0 32
ZMM55C13
12.4-14.1
5
26 110 +0.070
0.1
10 29
ZMM55C15
13.8-15.6
5
30 110 +0.070
0.1
11 27
ZMM55C16
15.3-17.1
5
40 170 +0.070
0.1
12 24
ZMM55C18
16.8-19.1
5
50 170 +0.070
0.1
14 21
ZMM55C20
18.8-21.2
5
55 220 +0.070 0.1
15 20
ZMM55C22
20.8-23.3 5 55 220 +0.070 0.1 17
18
ZMM55C24
22.8-25.6 5 80 220 +0.080 0.1
18 16
ZMM55C27
25.1-28.9
5
80 220 +0.080
0.1
20 14
ZMM55C30
28-32
5
80 220 +0.080
0.1
22 13
ZMM55C33
31-35
5
80 220 +0.080
0.1
24 12
ZMM55C36
34-38
5
80 220 +0.080
0.1
27 11
ZMM55C39
37-41 2.5 90 500 +0.080
0.1
30 10
ZMM55C43
40-46
2.5
90 600 +0.080
0.1
33 9.2
ZMM55C47
44-50
2.5
110 700 +0.080
0.1
36 8.5
Note: 1.The type numbers listed have zener voltage min/max as shown. Device tolerance of 2% are indicated by a "B"
instead of a "C". Zener voltage is measured with the device junction in thermal equilibrium at the lead temperature
of 301.
2.Z
ZT
and Z
ZK
are measured by dividing the ac voltage drop across the device by the ac current applied. The specified
limits are for I
Z(ac)
=0.1I
Z(dc)
with the ac frequency = 1k Hz.
3.This data was calculated using nominal voltages. The maximum current handling capability on a worse case basis is
limited by the actual zener voltage at the operating point and the powered derating curve.
CYStech Electronics Corp.
Spec. No. : C326SM
Issued Date : 2003.07.31
Revised Date :
Page No. : 3/3
ZMM55CXXSM series
CYStek Product Specification
Mini- Melf (SOD-80C) Dimension
*:Typical
Inches Millimeters
Inches Millimeters
DIM
Min. Max. Min. Max.
DIM
Min. Max. Min. Max.
A 0.0512
0.0591 1.30 1.50 C 0.0118 0.0197 0.30 0.50
B 0.0118
0.0197 0.30 0.50 D 0.1260
0.1417 3.2 3.6
Notes :
1.Controlling dimension : millimeters.
2.Maximum lead thickness includes lead finish thickness, and minimum lead thickness is the minimum thickness of base material.
3.If there is any question with packing specification or packing method, please contact your local CYStek sales office.
Important Notice:
All rights are reserved. Reproduction in whole or in part is prohibited without the prior written approval of CYStek.
CYStek reserves the right to make changes to its products without notice.
CYStek semiconductor products are not warranted to be suitable for use in Life-Support Applications, or systems.
CYStek assumes no liability for any consequence of customer product design, infringement of patents, or application assistance.
A
B
C
D
Cathode Mark
LL-34
Mini-Melf
SOD-80C
CYStek package code:SM
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