Document
1SMF4728A - 1SMF4764A
SURFACE MOUNT SILICON ZENER DIODES
VOLTAGE RANGE: 3.3 - 100V POWER: 1.0Wa t t s
Features
! Complete voltage range 3.3 to 100 volts ! High peak reverse power dissipation ! High reliability ! Low leakage current ! Standard zener voltage tolerance is ± 5%.
Mechanical Data
! Case: SOD-123FL plastic body over passivated junction
! Terminals : Plated axial leads, ! solderable per MIL-STD-750,Method 2026 ! Polarity : Color band denotes cathode end ! Mounting Position : Any ! Weight:0.0007 ounce, 0.02 grams
B
C
E
D H
L
E
SOD-123FL Dim Min Max Typ
A 3.50 3.80 3.65 B 2.60 2.90 2.75 C 1.70 1.90 1.80 D 0.09 1.10 1.00 E 0.08 1.10 0.095 H 0.12 0.20 0.16 L 0.07 0.09 0.08 All Dimensions in mm
A
Maximum Ratings TA = 25°C unless otherwise specified
Rating
Symbol
DC Power Dissipation at TL = 75 °C (Note1)
PD
Maximum Forward Voltage at IF = 200 mA
VF
Junction Temperature Range
TJ
Storage Temperature Range
Ts
Note : (1) P.C.B. Mounted on 0.31x0.31x0.08" (8x8x2mm) copper areas pads.
Value
1.0 1.2 - 55 to + 150 - 55 to + 150
Unit
W V °C °C
PD, MAXIMUM DISSIPATION (WATTS)
Fig. 1 MAXIMUM CONTINUOUS POWER DERATING 1.25
1.00
0.75
0.50 0.25
P.C.B. Mounted on 0.31x0.31x0.08" (8x8x2mm) copper areas pads
0
0
25 50 75 100 125 150 175
TL, LEAD TEMPERATURE (°C)
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ELECTRICAL CHARACTERISTICS Rating at 25 °C ambient temperature unless otherwise specified
Type
1SMF4728A 1SMF4729A 1SMF4730A 1SMF4731A 1SMF4732A 1SMF4733A 1SMF4734A 1SMF4735A 1SMF4736A 1SMF4737A 1SMF4738A 1SMF4739A 1SMF4740A 1SMF4741A 1SMF4742A 1SMF4743A 1SMF4744A 1SMF4745A 1SMF4746A 1SMF4747A 1SMF4748A 1SMF4749A 1SMF4750A 1SMF4751A 1SMF4752A 1SMF4753A 1SMF4754A 1SMF4755A 1SMF4756A 1SMF4757A 1SMF4758A 1SMF4759A 1SMF4760A 1SMF4761A 1SMF4762A 1SMF4763A 1SMF4764A
Nominal Zener Voltage
VZ @ IZT (V)
IZT (mA)
3.3
76.0
3.6
69.0
3.9
64.0
4.3
58.0
4.7
53.0
5.1
49.0
5.6
45.0
6.2
41.0
6.8
37.0
7.5
34.0
8.2
31.0
9.1
28.0
10
25.0
11
23.0
12
21.0
13
19.0
15
17.0
16
15.5
18
14.0
20
12.5
22
11.5
24
10.5
27
9.5
30
8.5
33
7.5
36
7.0
39
6.5
43
6.0
47
5.5
51
5.0
56
4.5
62
4.0
68
3.7
75
3.3
82
3.0
91
2.8
100
2.5
Maximum Zener Impedance
ZZT @ IZT ZZK @ IZK IZK
(Ω)
(Ω)
(mA)
10
400
1.0
10
400
1.0
9.0
400
1.0
9.0
400
1.0
8.0
500
1.0
7.0
550
1.0
5.0
600
1.0
2.0
700
1.0
3.5
700
1.0
4.0
700
0.5
4.5
700
0.5
5.0
700
0.5
7.0
700
0.25
8.0
700
0.25
9.0
700
0.25
10
700
0.25
14
700
0.25
16
700
0.25
20
750
0.25
22
750
0.25
23
750
0.25
25
750
0.25
35
750
0.25
40
1000
0.25
45
1000
0.25
50
1000
0.25
60
1000
0.25
70
1500
0.25
80
1500
0.25
95
1500
0.25
110
2000
0.25
125
2000
0.25
150
2000
0.25
175
2000
0.25
200
3000
0.25
250
3000
0.25
350
3000
0.25
Maximum Reverse Leakage Current
IR @ VR
(µA)
(V)
100
1.0
100
1.0
50
1.0
10
1.0
10
1.0
10
1.0
10
2.0
10
3.0
50
4.0
50
5.0
50
6.0
50
7.0
50
7.6
50
8.4
5.0
9.1
5.0
9.9
5.0
11.4
5.0
12.2
5.0
13.7
5.0
15.2
5.0
16.7
5.0
18.2
5.0
20.6
5.0
22.8
5.0
25.1
5.0
27.4
5.0
29.7
5.0
32.7
5.0
35.8
5.0
38.8
5.0
42.6
5.0
47.1
5.0
51.7
5.0
56.0
5.0
62.2
5.0
69.2
5.0
76.0
Notes :
(1) The type number listed have a standard tolerance on the nominal zener voltage of ± 5%.
Maximum DC Zener Current
IZM (mA) 276 252 234 217 193 178 162 146 133 121 110 100
91 83 76 69 61 57 50 45 41 38 34 30 27 25 23 22 19 18 16 14 13 12 11 10 9.0
Maximum Surge Current
IRM(2) (mApk)
1380 1260 1190 1070 970 890 810 730 660 605 550 500 454 414 380 344 305 285 250 225 205 190 170 150 135 125 115 110
95 90 80 70 65 60 55 50 45
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