SMAJ59xxB
1.5W Zener Diode
FEATURES
•
•
•
•
•
•
Lead Free Finish/Rohs Compliant
Low Zener Impedance
Low Regulation Factor
VZ – tolerance:
f
5%
Epoxy meets UL 94 V-0 flammability rating
Moisture Sensitivity Level 1
DO-214AC (SMA)
CASE DIMENSION
MARKING
0.
1.
2.
3.
Cathode Mark (silver band)
LOGO
Date code (See below Annual code and Monthly code)
For examples: “Z5927” for SMAJ5927B
1/3
SMAJ59xxB
1.5W Zener Diode
ABSOLUTE MAXIMUM RATING
Parameter
Zener current
Power dissipation at TL=75℃
Junction temperature
Storage temperature range
Ptot
Tj
T
S
Symbol
Value
See Table
1.5
150
-55to+150
W
°C
°C
Unit
ELECTRICAL CHARACTERISTICS
Device
marking
code
Nominal
zener
voltage at
I
ZT
Vz(Volts)
(1)
6.2
6.8
7.5
8.2
9.1
10
11
12
13
15
16
18
20
22
24
27
30
33
Maximum zener impedance
(2)
Z
ZT
at I
ZT
(Ω)
60.5
55.1
50
45.7
41.2
37.5
34.1
31.2
28.8
25
23.4
20.8
18.7
17
15.6
13.9
12.5
11.4
2
2.5
3.0
3.5
4.0
4.5
5.5
6.5
7.0
9.0
10
12
14
17.5
19
23
26
33
Z
ZK
(Ω)
200
200
400
400
500
500
550
550
550
600
600
650
650
650
700
700
750
800
At I
ZK
(mA)
1.0
1.0
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
Maximum
reverse leakage
current
I
R
(uA)
5
5
5
5
5
5
1
1
1
1
1
1
1
1
1
1
1
1
at V
R
(Volts)
4.0
5.2
6.0
6.5
7.0
8.0
8.4
9.1
9.9
11.4
12.2
13.7
15.2
16.7
18.2
20.6
22.8
25.1
Maximum
regulator
current
(3)
at
T
A
=50℃
I
ZM
(mA)
242
221
200
183
165
150
136
125
115
100
94
83
75
68
63
56
50
45
Type number
Test current
I
ZT
(mA)
SMAJ5920B
SMAJ5921B
SMAJ5922B
SMAJ5923B
SMAJ5924B
SMAJ5925B
SMAJ5926B
SMAJ5927B
SMAJ5928B
SMAJ5929B
SMAJ5930B
SMAJ5931B
SMAJ5932B
SMAJ5933B
SMAJ5934B
SMAJ5935B
SMAJ5936B
SMAJ5937B
Z5920
Z5921
Z5922
Z5923
Z5924
Z5925
Z5926
Z5927
Z5928
Z5929
Z5930
Z5931
Z5932
Z5933
Z5934
Z5935
Z5936
Z5937
2/3
SMAJ59xxB
1.5W Zener Diode
Device
marking
code
Nominal
zener
voltage at
I
ZT
Vz(Volts)
(1)
36
39
43
47
51
56
62
68
75
82
91
100
110
120
130
150
160
180
200
Test current
I
ZT
(mA)
Maximum zener impedance
Z
ZT
at I
ZT
(Ω)
10.4
9.6
8.7
8.0
7.3
6.7
6.0
5.5
5
4.6
4.1
3.7
3.4
3.1
2.9
2.5
2.3
2.1
1.9
38
45
53
67
70
86
100
120
140
160
200
250
300
380
450
600
700
900
1200
Z
ZK
(Ω)
850
900
950
1000
1100
1300
1500
1700
2000
2500
3000
3100
4000
4500
5000
6000
6500
7000
8000
(2)
Type number
Maximum
reverse leakage
current
I
R
(uA)
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
at V
R
(Volts)
27.4
29.7
32.7
35.8
38.8
42.6
47.1
51.7
56
62.2
69.2
76
83.6
91.2
98.8
114
121.6
136.8
152
At I
ZK
(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
Maximum
regulator
current
(3)
at
T
A
=50℃
I
ZM
(mA)
42
38
35
32
29
27
24
22
20
18
16
15
13
12
11
10
9
8
7
SMAJ5938B
SMAJ5939B
SMAJ5940B
SMAJ5941B
SMAJ5942B
SMAJ5943B
SMAJ5944B
SMAJ5945B
SMAJ5946B
SMAJ5947 B
SMAJ5948 B
SMAJ5949 B
SMAJ5950 B
SMAJ5951 B
SMAJ5952B
SMAJ5953 B
SMAJ5954 B
SMAJ5955 B
SMAJ5956 B
Z5938
Z5939
Z5940
Z5941
Z5942
Z5943
Z5944
Z5945
Z5946
Z5947
Z5948
Z5949
Z5950
Z5951
Z5952
Z5953
Z5954
Z5955
Z5956
Notes: (1). Measured under thermal equilibrium and DC test conditions , Standard voltage tolerance is 10%,suffix B±5%
(2).The Zener impedance is derived from the 1KHZ AC voltage which results when an AC current having an RMS
value equal to 10% of the Zener current (I
ZT
or I
ZK
) is superimposed on I
ZT
or I
ZK
. Zener impedance is measure
at two points to insure a sharp knee on the breakdown curve and to eliminate unstable units
(3).Valid provided that electrodes at a distance of 10 mm from case are kept at ambient temperature
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