DL4728A SERIES
SURFACE MOUNT ZENER DIODES
VOLTAGE
FEATURES
• Low profile package
• Built-in strain relief
• Low inductance
• In compliance with EU RoHS 2002/95/EC directives
3.3 to 100 Volts
POWER
1 Watts
MECHANICAL DATA
• Case: Molded Glass MELF / DL-41
• Terminals: Solderable per MIL-STD-750, Method 2026
• Polarity: Color band denotes cathode end
• Approx. Weight: 0.16 grams
• Mounting Position: Any
• Packing information
T/R - 5K per 13" paper Reel
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS
Ratings at 25°C ambient temperature unless otherwise specified.
Parameter
Power Dissipation at T
A
= 25
O
C
Operating Junction Temperature Range
Storage Temperature Range
Symbol
Value
1*
-65 to +200
-65 to +200
Units
W
O
P
TOT
T
J
T
STG
C
C
O
*Valid provided that leads at a distance of 10mm from case are kept at ambient temperature.
Parameter
Thermal Resistance Junction to Ambient Air
Forward Voltage at I
F
= 200mA
Symbol
Min.
--
--
Typ.
Max.
170*
1.2
Units
o
R
θJA
V
F
--
--
C/W
V
*Valid provided that leads at a distance of 10mm from case are kept at ambient temperature.
Notes :
STANDARD VOLTAGE TOLERANCE IS + 5% AND :
SUFFIX “A” FOR + 5%
SUFFIX “B” FOR + 2%
SUFFIX “C” FOR + 3%
November 25,2011-REV.03
PAGE . 1
DL4728A SERIES
Ma xi mum Ze ne r Vo lta g e
Part Number
No m. V
V
Z
@ I
ZT
Mi n. V
Max. V
Ω
Ma xi mum Ze ne r Imp e d a nc e
Z
ZT
@ I
ZT
mA
Ω
Z
ZK
@ I
ZK
mA
Ma xi mum Leakage
Current
I
R
@V
R
μA
V
1 Watt Zener Diodes (Glass Sealed Envelope)
DL4728A
DL4729A
DL4730A
DL4731A
DL4732A
DL4733A
DL4734A
DL4735A
DL4736A
DL4737A
DL4738A
DL4739A
DL4740A
DL4741A
DL4742A
DL4743A
DL4744A
DL4745A
DL4746A
DL4747A
DL4748A
DL4749A
DL4750A
DL4751A
DL4752A
DL4753A
DL4754A
DL4755A
DL4756A
DL4757A
DL4758A
DL4759A
DL4760A
DL4761A
DL4762A
DL4763A
DL4764A
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
62
68
75
82
91
100
3.14
3.42
3.71
4.09
4.47
4.85
5.32
5.89
6.46
7.13
7.79
8.65
9.5
10.45
11.4
12.35
14.25
15.2
17.1
19
20.9
22.8
25.65
28.5
31.35
34.2
37.05
40.85
44.65
48.45
53.2
58.9
64.6
71.25
77.9
86.45
95
3.47
3.78
4.1
4.52
4.94
5.36
5.88
6.51
7.14
7.88
8.61
9.56
10.5
11.55
12.6
13.65
15.75
16.8
18.9
21
23.1
25.2
28.35
31.5
34.65
37.8
40.95
45.15
49.35
53.55
58.8
65.1
71.4
78.75
86.1
95.55
105
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
125
150
175
200
250
350
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
4.0
3.7
3.3
3
2.8
2.5
400
400
400
400
500
550
600
700
700
700
700
700
700
700
700
700
700
700
750
750
750
750
750
1000
1000
1000
1000
1500
1500
1500
2000
2000
2000
2000
3000
3000
3000
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
0.25
0.25
0.25
0.25
0.25
0.25
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
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
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
47.1
51.7
56
62.2
69.2
76
November 25,2011-REV.03
PAGE . 2
DL4728A SERIES
RATING AND CHARACTERISTIC CURVES
POWER DISSIPATION, Watts
1.0
0.8
0.6
0.4
0.2
0
50
100
150
200
O
250
AMBIENT TEMPERATURE, C
FIG. 1 POWER DERATING CURVE
Vz (V)
5
10
15
20
25
30
Iz (mA)
100
80
60
40
20
0
4742
4744
4748
4747
4741
4749
4750
4735
4733
4732
4739
4731
November 25,2011-REV.03
4728
Fig.2 BREAKDOWN CHARACTERISTICS
PAGE . 3
DL4728A SERIES
MOUNTING PAD LAYOUT
ORDER INFORMATION
• Packing information
T/R - 5K per 13" plastic Reel
T/R - 1.5K per 7" plastic Reel
LEGAL STATEMENT
Copyright PanJit International, Inc 2012
The information presented in this document is believed to be accurate and reliable. The specifications and information herein
are subject to change without notice. Pan Jit makes no warranty, representation or guarantee regarding the suitability of its
products for any particular purpose. Pan Jit products are not authorized for use in life support devices or systems. Pan Jit
does not convey any license under its patent rights or rights of others.
November 25,2011-REV.03
PAGE .
4
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