ZM4728A - ZM4758A
Pb
RoHS
COMPLIANCE
1.0 Watt Hermetically Sealed Glass
Zener Voltage Regulators
MELF
Features
Zener voltage range 3.3V to 56 V
MELF Package (JEDEC DO-213AB)
Surface mount devices (SMD).
Hemetically sealed glass
Compression bonded construction
All extemal surfaces are corrosion resistant
and terminals are readily solderable
RoHS compliant
Matte Tin (Sn) lead finish
Color band indicates negative polarity
Dimensions in inches and (millimeters)
Maximum Ratings and Electrical Characteristics
Rating at 25
o
C ambient temperature unless otherwise specified.
Maximum Ratings
Type Number
Symbol
Value
Units
1.0
W
Pd
O
170
C/W
R
ӨJA
O
-65 to + 200
C
T
STG
O
175
C
T
J
These ratings are limiting values above which the serviceability of the diode may be impaired.
Power Dissipation
Thermal Resistance Junction to Ambient
Storage Temperature Range
Operating Temperature Range
Version: A07
ELECTRICAL CHARACTERISTICS
(TA=25
O
C
Type
Number
ZM4728A
ZM4729A
ZM4730A
ZM4731A
ZM4732A
ZM4733A
ZM4734A
ZM4735A
ZM4736A
ZM4737A
ZM4738A
ZM4739A
ZM4740A
ZM4741A
ZM4742A
ZM4743A
ZM4744A
ZM4745A
ZM4746A
ZM4747A
ZM4748A
ZM4749A
ZM4750A
ZM4751A
ZM4752A
ZM4753A
ZM4754A
ZM4755A
ZM4756A
ZM4757A
ZM4758A
V
Z
@ I
ZT
(Volts)
Nominal
3.3
3.6
3.9
4.3
4.7
5.1
5.6
6.2
6.8
7.5
8.2
9.1
10
11
12
13
15
16
18
20
22
24
27
30
33
36
39
43
47
51
56
I
ZT
mA
76
69
64
58
53
49
45
41
37
34
31
28
25
23
21
19
17
15.5
14.0
12.5
11.5
10.5
9.5
8.5
7.5
7.0
6.5
6.0
5.5
5.0
4.5
Z
ZT
@ I
ZT
Ohms
Max
10
10
9
9
8
7
5
2
3.5
4.0
4.5
5.0
7.0
8.0
9.0
10
14
16
20
22
23
25
35
40
45
50
60
70
80
95
110
I
ZK
mA
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
0.5
0.5
0.5
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
unless otherwise noted)
IR @ VR
Z
ZK
@ I
ZK
uA
Ohms
Max
400
400
400
400
500
550
600
700
700
700
700
700
700
700
700
700
700
700
700
750
750
750
750
1000
1000
1000
1000
1500
1500
1500
2000
100
100
50
10
10
10
10
10
10
10
10
10
10
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
VR
V
1.0
1.0
1.0
1.0
1.0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
7.6
8.4
9.1
9.9
11.4
12.2
13.7
15.2
16.7
18.2
20.6
22.8
25.1
27.4
29.7
32.7
35.8
38.8
42.6
Notes: 1. The device numbers listed have a standard tolerance on the nominal zener
voltage of
±5%.
2. For detailed information on price, availability and delivery of nominal zener
voltages between the voltages shown and tighter voltage tolerances.
3. The zener impedance is derived from the 60-cycle ac voltage, which results
when an ac current having an ms value equal to 10% of the dc zener current
(I
ZT
or I
ZK
) is superimposed to I
ZT
or I
ZK
.
Version: A07
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