ZM4728A THRU ZM4758A
LL-41 Hermetically
Sealed Glass Zener Voltage Regulators
FEATURES
• Zener Voltage Range 3.3 to 56 Volts
• LL-41 MELF Package (JEDEC DO-213AB)
• Surface Device Type Mounting
• Hermetically Sealed Glass
• Compression Bonded Construction
• All External Surfaces Are Corrosion Resistant And
Terminals Are Readily Solderable
• RoHS Compliant
• Matte Tin (Sn) Lead Finish
• Color band Indicates Negative Polarity
REVERSE VOLTAGE – 3.3 to 56 Volts
POWER DISSIPATION – 1 Watts
LL-41
LL-41
DIM.
A
B
C
MIN.
4.80
2.39
0.41
MAX.
5.20
2.66
0.55
All Dimensions in millimeter
Maximum Ratings & Thermal Characteristics
@ T
A
= 25℃ unless otherwise specified
Characteristic
Total Device Dissipation
Symbol
P
D
T
STG
T
OPR
Rth
J-A
Value
Unit
W
°C
°C
°C /W
1
-65 to +200
+175
170
Storage Temperature Range
Maximum Junction Operating Temperature
Thermal Resistance Junction to Ambient
These ratings are limiting values above which the serviceability of the diode may be impaired
Device Marking :
Device P/N
ZM47xxA
Marking
N/A
1
2
Pin Diagram
Equivalent Circuit Diagram
Electrical Characteristics
@
T
A
= 25℃ unless otherwise specified
Symbol
V
Z
I
ZT
Z
ZT
I
ZK
Z
ZK
I
R
V
R
I
F
V
F
Parameter
Reverse Zener Voltage @ IZT
Reverse Current
Maximum Zener Impedance @ IZT
Reverse Current
Maximum Zener Impedance @ IZK
Reverse Leakage Current @ VR
Reverse Voltage
Forward Current
Forward Voltage @ IF
REV.0, Aug-2011, KSJR04
Electrical Characteristics
Device T ype
V Z @ IZT
(Volts)
Nominal
TA = 25°C unless otherwise noted
IZT
(mA)
Z ZT @ IZT
(Ω)
Ω
Max
IZK
(mA)
Z ZK @ IZK
(Ω)
Ω
Max
IR @ V R
(A)
Max
VR
(Volts)
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
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
76
69
64
58
53
49
45
41
37
34
31
28
25
23
21
19
17
15.5
14
12.5
11.5
10.5
9.5
8.5
7.5
7
6.5
6
5.5
5
4.5
10
10
9
9
8
7
5
2
3.5
4
4.5
5
7
8
9
10
14
16
20
22
23
25
35
40
45
50
60
70
80
95
110
1
1
1
1
1
1
1
1
1
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
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
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
1
1
1
1
1
1
2
3
4
5
6
7
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
VF Forward Voltage = 1.2 V Maximum @ IF = 200 mA for all types
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, contact your nearest Liteon Semiconductor Corp. representative.
3. The zener impedance is derived from the 60-cycle ac voltage, which results when an ac current having an rms value equal to
10% of the dc zener current (I
ZT
or
I
ZK
) is superimposed to
I
ZT
or
I
ZK
.
Legal Disclaimer Notice
ZM4728A THRU ZM4758A
Important Notice and Disclaimer
LSC reserves the right to make changes to this document and its products and specifications
at any time without notice. Customers should obtain and confirm the latest product
information and specifications before final design, purchase or use.
LSC makes no warranty, representation or guarantee regarding the suitability of its products
for any particular purpose, nor does LSC assume any liability for application assistance or
customer product design. LSC does not warrant or accept any liability with products which
are purchased or used for any unintended or unauthorized application.
No license is granted by implication or otherwise under any intellectual property rights of
LSC.
LSC products are not authorized for use as critical components in life support devices or
systems without express written approval of LSC.