Page 1
Formosa MS
Zener Diode
1N4728A THRU 1N4764A
1
2
2
2
2
3
4
5
5
6
7
List
List.................................................................................................
Package outline...............................................................................
Features..........................................................................................
Maximum ratings ..............................................................................
Electrical characteristics....................................................................
Rating and characteristic curves........................................................
Pinning information...........................................................................
Taping & bulk specifications for AXIAL devices....................................
Suggested thermal profiles for soldering processes.............................
High reliability test capabilities...........................................................
Mechanical data...............................................................................
Document ID Issued Date Revised Date Revision Page.
DS-222715 2008/02/10 2010/03/10 B 7
http://www.formosams.com/
TEL:886-2-22696661
FAX:886-2-22696141
Features
Silicon epitaxial planar chip structure.
• Leaded glass hermetically sealed package.
Wide zener reverse voltage range 3.3V to 100V.
Other tilerance are available upon request.
Lead-free parts meet environmental standards of
MIL-STD-19500 /228
•
•
•
•
Mechanical data
•
• Terminals :Plated terminals, solderable per MIL-STD-750,
Method 2026
• Polarity : Indicated by cathode band
• Mounting Position : Any
• Weight : Approximated 0.31 gram
Case : Glass, DO-41G
Package outline
Page 2
1000mW Zener
Diodes - 3.3V-100V
Axial Lead
DO-41G
Dimensions in inches and (millimeters)
PARAMETER CONDITIONS Symbol
VF
PD
MIN. TYP. MAX.
1.20
1000
UNIT
V
mW
Storage temperature
Operating temperature
TSTG
TJ-55
-65
+150
+175 oC
oC
o
MAXIMUM RATINGS (at T =25 C unless otherwise noted)
A
Forward voltage
Power Dissipation
I = 200 mA
F
Formosa MS
1N4728A THRU 1N4764A
Document ID Issued Date Revised Date Revision Page.
http://www.formosams.com/
TEL:886-2-22696661
FAX:886-2-22696141
Zener Diode
1.0(25.4)
MIN.
1.0(25.4)
MIN.
.177(4.5)
.138(3.5)
.030(.75)
.026(.65)
.107(2.7)
.080(2.0)
DIA.
DIA.
DS-222715 2008/02/10 2010/03/10 B 7
Tamb≤50℃
Page 3
o
Electrical characteristics (at T =25 C unless otherwise noted)
A
Part No. Marking
code
Test
current
Zener
impedance
Leakage
current
Surge
current
1N4728A
1N4729A
1N4730A
1N4731A
1N4732A
1N4733A
1N4734A
1N4735A
1N4736A
1N4737A
1N4738A
1N4739A
1N4740A
1N4741A
1N4742A
1N4743A
1N4744A
1N4745A
1N4746A
1N4747A
1N4748A
1N4749A
1N4750A
1N4751A
1N4752A
1N4753A
1N4754A
1N4755A
1N4756A
1N4757A
1N4758A
1N4759A
1N4760A
1N4761A
1N4762A
1N4763A
1N4764A
Note : 5% tolerance of Zener voltage
mA
IZT Z @ I
ZT ZT IZK IR
Volts
VR
Z @ I
ZK ZK
mA
ISurge
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
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
7.0
6.5
6.0
5.5
5.0
4.5
4.0
3.7
3.3
3.0
2.0
2.5
10
10
9
9
8
7
5
2
3.5
4.0
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
1.00
1.00
1.00
1.00
1.00
1.00
1.00
1.00
1.00
0.50
0.50
0.50
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
5
5
5
5
5
5
5
5
5
5
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
25.4
27.4
29.7
32.7
35.8
38.8
42.6
47.1
51.7
56.0
62.2
69.2
76.0
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
1380
1260
1190
1070
970
890
810
730
660
605
550
500
454
414
380
344
304
285
250
225
205
190
170
150
135
125
115
105
97
89
81
73
67
60
55
50
45
Formosa MS
1N4728A THRU 1N4764A
Document ID Issued Date Revised Date Revision Page.
http://www.formosams.com/
TEL:886-2-22696661
FAX:886-2-22696141
Zener Diode
1N4728A
1N4729A
1N4730A
1N4731A
1N4732A
1N4733A
1N4734A
1N4735A
1N4736A
1N4737A
1N4738A
1N4739A
1N4740A
1N4741A
1N4742A
1N4743A
1N4744A
1N4745A
1N4746A
1N4747A
1N4748A
1N4749A
1N4750A
1N4751A
1N4752A
1N4753A
1N4754A
1N4755A
1N4756A
1N4757A
1N4758A
1N4759A
1N4760A
1N4761A
1N4762A
1N4763A
1N4764A
mA(Ω)Max (Ω)Max (uA)Max
DS-222715 2008/02/10 2010/03/10 B 7
Zener
voltage
Max.
Nom.
V @ I (Volts)
Z ZT
Min.
3.140
3.420
3.710
4.090
4.470
4.850
5.320
5.890
6.460
7.130
7.790
8.645
9.50
10.45
11.40
12.35
14.25
15.20
17.10
19.00
20.90
22.80
25.65
28.50
31.35
34.20
37.05
40.85
44.65
48.45
53.20
58.90
64.60
71.25
77.90
86.45
95.00
3.470
3.780
4.100
4.520
4.940
5.360
5.880
6.510
7.140
7.880
8.610
9.560
10.5
11.55
12.60
13.65
15.75
16.80
18.90
21.00
23.10
25.20
28.35
31.50
34.65
37.80
40.95
45.15
49.35
53.55
58.80
65.10
71.40
78.75
86.10
95.55
105.0
Page 4
Rating and characteristic curves (1N4728A THRU 1N4764A)
Document ID Issued Date Revised Date Revision Page.
http://www.formosams.com/
TEL:886-2-22696661
FAX:886-2-22696141
DS-222715 2008/02/10 2010/03/10 B 7
Figure 1. Temperature c oeff icie nts
Figure 2. Effect of zener c urren t on z ener i mpedance Figure 3. Effect of zener voltage on z ener i mpedance
(-55℃ to +150℃ temperature range; 90% of the units are in the ranges indicated. )
Pinning information
12
Pin1 cathode
Pin2 anode
Pin Simplified outline Symbol
Page 5
Formosa MS
1N4728A THRU 1N4764A
Taping & bulk specifications for AXIAL devices
52.4mm
A
OFF Center
both sids
1.0mm
6.3mm Max OFF
Alignment
1.2mm
72mm DIA.
355mm
17mm DIA. 55mm Max.
17mm DIA.
71mm Max.
REEL PACKING
DO-41G 5,000 5 mm 360 * 340 * 370 20,000 10.8
AMMO PACKING
DO-41G/26mm 5,000 260 * 83 * 160 440 * 270 * 340 75,000 22.7
DEVICE
CASE
TYPE
Q'TY 1
(PCS / REEL)
COMPONENT
SPACING
"A" in FIG. A
CARTON
SIZE
Q'TY 2
(PCS / CARTON)
APPROX.
CROSS
WEIGHT(kg)
(m/m)
DEVICE
CASE
TYPE
Q'TY 1
(PCS / BOX)
INNER
BOX SIZE
CARTON
SIZE
Q'TY 2
(PCS / CARTON)
APPROX.
CROSS
WEIGHT(kg)
(m/m)(m/m)
Document ID Issued Date Revised Date Revision Page.
http://www.formosams.com/
TEL:886-2-22696661
FAX:886-2-22696141
Zener Diode
DO-41G/52mm 5,000 260 * 83 * 160 440 * 270 * 340 50,000 15.7
12
DS-222715 2008/02/10 2010/03/10 B 7
Page 6
Formosa MS
1N4728A THRU 1N4764A
BULK PACKING
DO-41G 1,000 194 * 84 * 20 465 * 220 * 260 50,000 20.6
DEVICE
CASE
TYPE
Q'TY 1
(PCS / BOX)
INNER
BOX SIZE
CARTON
SIZE
Q'TY 2
(PCS / CARTON)
APPROX.
CROSS
WEIGHT(kg)
(m/m)(m/m)
Document ID Issued Date Revised Date Revision Page.
http://www.formosams.com/
TEL:886-2-22696661
FAX:886-2-22696141
Zener Diode
Suggested thermal profiles for soldering processes
Temperature(°C)
1.Lead free temperature profile wave-soldering
0 20 40 60 80 100 120 140 160 180 200 220 240
Time(Sec)
0
20
40
60
80
100
120
140
160
180
200
220
240
260
280
Preheat
Max gradient 2ºC/s
Peak
Max well
time 5 Max
Cool Down
Max gradient-4ºC/s
Suggested gradient 2ºC/s or
less
-
Peak soldering temperature not
to exceed 260ºC
DS-222715 2008/02/10 2010/03/10 B 7
Page 7
Document ID Issued Date Revised Date Revision Page.
Formosa MS
1N4728A THRU 1N4764A
http://www.formosams.com/
TEL:886-2-22696661
FAX:886-2-22696141
Zener Diode
Item Test Conditions Reference
High reliability test capabilities
1. Solder Resistance
2. Solderability
3. Pull Test
4. Bend Lead
5. High Temperature Reverse Bias
6. Pressure Cooker
7. Temperature Cycling
8. Thermal Shock
9. Humidity
10. High Temperature Storage Life
at 260±5 for 10±2sec.
immerse body into solder 1/16"±1/32"
o
at 245±5 C for 5 sec.
1kg in axial lead direction for 10 sec.
1kg weight applied to each lead bending
o o
arc 90 ±5 for 3 times.
o
V =80% rate at T =150 C for 168 hrs.
R J
o
15P at T =121 C for 4 hrs.
SIG A
o o
-55 C to +125 C dwelled for 30 min.
and transferred for 5min. total 10 cycles.
o o
0 C for 5 min. rise to 100 C for 5 min. total 10 cycles.
o
at T =85 C, RH=85% for 1000hrs.
A
o
at 175 C for 1000 hrs.
oCMIL-STD-750D
METHOD-2031
MIL-STD-202F
METHOD-208
MIL-STD-750D
METHOD-2036
MIL-STD-750D
METHOD-2036
MIL-STD-750D
METHOD-1038
JESD22-A102
MIL-STD-750D
METHOD-1051
MIL-STD-750D
METHOD-1056
MIL-STD-750D
METHOD-1021
MIL-STD-750D
METHOD-1031
Item Test Conditions Reference
DS-222715 2008/02/10 2010/03/10 B 7
