1SMA4749 [SENSITRON]
Zener Diode;
SENSITRON 
SENSITRON
1SMA4741–1SMA4764
SEMICONDUCTOR
1.0W SURFACE MOUNT ZENER DIODE
Data Sheet 2677, Rev. B
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Features
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Glass Passivated Die Construction
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1.0W Power Dissipation
11 –100V Nominal Zener Voltage
5% Standard Vz Tolerance
B
D
Low Inductance
A
Typical IR Less Than 5.0µA Above 11V
Plastic Case Material has UL Flammability
Classification Rating 94V-O
F
C
H
G
E
SMA/DO-214AC
Mechanical Data
Dim Min Max Min
Max
A
B
C
D
E
F
2.50 2.90 0.098 0.114
4.00 4.60 0.157 0.181
1.40 1.60 0.055 0.063
0.152 0.305 0.006 0.012
4.80 5.28 0.189 0.208
2.00 2.44 0.079 0.096
0.051 0.203 0.002 0.008
0.76 1.52 0.030 0.060
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Case: JEDEC DO-214AC Low Profile Molded Plastic
Terminals: Solder Plated,Solderable
per MIL-STD-202,Method 208
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Polarity: Cathode Band
Marking: Device Code (See Table Next Page)
Weight: 0.064 grams (approx.)
G
H
In mm
In inch
Maximum Ratings @TA=25°C unless otherwise specified
Characteristic
Symbol
Value
Unit
Power Dissipation (Note 1)
Derate Above 25°C
1.0
8.0
W
mW/°C
Pd
Forward Voltage @IF = 200mA
V
1.2
V
F
Non repetitive peak surge power dissipation
Tp = 100 µs sq.pulse,Tj = 25°C prior to surge
PZSM
600
W
Thermal Resistance Junction to Ambient (Note 1)
Operating and Storage Temperature Range
RθJA
120
°C /W
°C
Tj, TSTG
-65 to +150
Note:1.Valid provided that device terminals are kept at ambient temperature
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SENSITRON
SEMICONDUCTOR
1SMA4741–1SMA4764
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1.0W SURFACE MOUNT ZENER DIODE
Data Sheet 2677, Rev. B
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Electrical Characteristics @TA=25°C unless otherwise specified
Max. Surge
Current
8.3ms
Nominal Zener
Voltage (Note 2)
Test
Current
Maximum Zener Impedance
(Note 3)
Leakage Current
Device
Marking
Code
Type Number
(Note 1)
Vz @ Izt
Izt
Zzt @ Izt
Zzk @Izk
Izk
Ir
@ Vr
Izs
(V)
11
12
13
15
16
18
20
22
24
27
30
33
36
39
43
47
51
56
62
68
75
82
91
100
(mA)
23
(Ω)
8.0
9.0
10
(Ω)
700
(mA)
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
(µA)
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
5.0
5.0
5.0
5.0
5.0
5.0
(V)
(mA)
414
380
344
305
285
250
225
205
190
170
150
135
125
115
110
95
1SMA4741
1SMA4742
1SMA4743
1SMA4744
1SMA4745
1SMA4746
1SMA4747
1SMA4748
1SMA4749
1SMA4750
1SMA4751
1SMA4752
1SMA4753
1SMA4754
1SMA4755
1SMA4756
1SMA4757
1SMA4758
1SMA4759
1SMA4760
1SMA4761
1SMA4762
1SMA4763
1SMA4764
741B
742B
743B
744B
745B
746B
747B
748B
749B
750B
751B
752B
753B
754B
755B
756B
757B
758B
759B
760B
761B
762B
763B
764B
8.4
21
700
9.1
19
700
9.9
17
14
700
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
56.0
62.2
69.2
76.0
15.5
14
16
700
20
750
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
2.8
2.5
22
750
23
750
25
750
35
750
40
1000
1000
1000
1000
1500
1500
1500
2000
2000
2000
2000
3000
3000
3000
45
50
60
70
80
95
90
110
125
150
175
200
250
350
80
70
65
60
55
50
45
Note: 1. Type numbers listed have standard tolerance on the nominal Zener voltage of ±5%.
2. Measured under thermal equilibrium and DC (Izt) test conditions.
3. The Zener impedance is derived from the 60Hz AC voltage which results when an AC current having an RMS value
equal to 10% of the Zener current (Izt or Izk) is superimposed on Izt or Izk. Zener impedance is measured at two points
to insure a sharp knee on the breakdown curve and to eliminate unstable units.
• 221 West Industry Court ꢀ Deer Park, NY 11729-4681 ꢀ (516) 586-7600 FAX (516) 242-9798 •
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• World Wide Web Site - http://www.sensitron.com • E-Mail Address - sales@sensitron.com •
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SENSITRON
SEMICONDUCTOR
1SMA4741–1SMA4764
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1.0W SURFACE MOUNT ZENER DIODE
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Data Sheet 2677, Rev. B
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•ꢀꢁꢁꢂꢀꢃꢄꢅꢆꢀꢇꢈꢉꢊꢅꢆꢋꢌꢀꢍꢎꢊꢋꢆꢀꢀ!ꢀꢀꢏꢄꢄꢋꢀꢐꢑꢋꢒꢓꢀꢔꢕꢀꢀꢂꢂꢖꢁꢗꢘꢙꢚꢛꢂꢀꢀ!ꢀꢜꢚꢝꢂꢞꢀ ꢛꢚꢘꢖꢚ!!ꢀꢀ"#$ꢀꢜꢚꢝꢂꢞꢀꢁꢙꢁꢘꢗꢖꢗꢛꢀ•ꢀ
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SENSITRON
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1SMA4741–1SMA4764
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SEMICONDUCTOR
1.0W SURFACE MOUNT ZENER DIODE
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Data Sheet 2677, Rev. B
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DISCLAIMER:
1- The information given herein, including the specifications and dimensions, is subject to change without prior not ice to improve
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product characteristics. Before ordering, purchasers are advised to contact the Sensitron Semiconductor sales department for the latest
version of the datasheet(s).
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2- In cases where extremely high reliability is required (such as use in nuclear power control, aerospace and aviation, traffic equipment,
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medical equipment , and safety equipment) , safety should be ensured by using semiconductor devices that feature assured safety or by
means of users’ fail-safe precautions or other arrangement .
3- In no event shall Sensitron Semiconductor be liable for any damages that may result from an accident or any other cause during
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operation of the user’s units according to the datasheet(s). Sensitron Semiconductor assumes no responsibility for any intellectual
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property claims or any other problems that may result from applications of information, products or circuits described in the datasheets.
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4- In no event shall Sensitron Semiconductor be liable for any failure in a semiconductor device or any secondary damage resulting from
use at a value exceeding the absolute maximum rating.
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5- No license is granted by the datasheet(s) under any patents or other rights of any third party or Sensitron Semiconductor.
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6- The datasheet(s) may not be reproduced or duplicated, in any form, in whole or part, without the expressed writ ten permission of
Sensitron Semiconductor.
7- The products (technologies) described in the datasheet(s) are not to be provided to any party whose purpose in their application will
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hinder maintenance of international peace and safety nor are they to be applied to that purpose by their direct purchasers or any third
party. When exporting these products (technologies), the necessary procedures are to be taken in accordance with related laws and
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regulations.
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• 221 West Industry Court ! Deer Park, NY 11729-4681 ! (631) 586-7600 FAX (631) 242-9798 •
• World Wide Web Site - http://www.sensitron.com • E-Mail Address - sales@sensitron.com •
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