1SMA5926-1SMA5956
1.Watts Surface Mount Silicon Zener Diode
SMA/DO-214AC
Features
For surface mounted applications in order to
optimize board space
Low profile package
Built-in strain relief
Glass passivated junction
Low inductance
Typical I
R
less than 0.5µA above 11V
High temperature soldering guaranteed:
260
o
C / 10 seconds at terminals
Plastic package has Underwriters Laboratory
Flammability Classification 94V-0
Mechanical Data
Case: Molded plastic over passivated junction
Polarity: Color Band denotes positive end
(cathode)
Standard packaging: 12mm tape
Weight: 0.064 gram
Dimensions in inches and (millimeters)
Maximum Ratings and Electrical Characteristics
Rating at 25
o
C ambient temperature unless otherwise specified.
Type Number
DC Power Dissipation at T
L
=75 C, measure at
Zero Lead Length ( Note 1 ) Derate above 75
o
C
Peak Forward Surge Current, 8.3 ms Single Half
Sine-wave Superimposed on Rated Load
(JEDEC method) (Note 1, 2)
o
Symbol
P
D
I
FSM
Value
1.5
20
10.0
150
Units
Watts
mW/
o
C
Amps
o
Operating and Storage Temperature Range
T
J
, T
STG
-55 to +
2
1. Mounted on 5.0mm (0.013mm thick) land areas.
Notes:
2. Measured on 8.3ms Single Half Sine-wave or Equivalent Square Wave,
Duty Cycle=4 Pulses Per Minute Maximum
.
C
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mail:lge@luguang.cn
1SMA5926-1SMA5956
1.Watts Surface Mount Silicon Zener Diode
ELECTRICAL CHARACTERISTICS
(TA=25
o
C unless otherwise noted) V
F
=1.5V max, I
F
=200mA for all types.
Device
Marking
Code
926A
927A
928A
929A
930A
931A
932A
933A
934A
935A
936A
937A
938A
939A
940A
941A
942A
943A
944A
945A
946A
947A
948A
949A
950A
951A
952A
953A
954A
955A
956A
Nominal Zener Voltage
Test
Device
(Note 1)
1SMA5926
1SMA5927
1SMA5928
1SMA5929
1SMA5930
1SMA5931
1SMA5932
1SMA5933
1SMA5934
1SMA5935
1SMA5936
1SMA5937
1SMA5938
1SMA5939
1SMA5940
1SMA5941
1SMA5942
1SMA5943
1SMA5944
1SMA5945
1SMA5946
1SMA5947
1SMA5948
1SMA5949
1SMA5950
1SMA5951
1SMA5952
1SMA5953
1SMA5954
1SMA5955
1SMA5956
Min
V
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
104.5
114.0
123.5
142.5
152.0
171.0
190.0
V
z
@ I
zt
Nom
Max
V(Notes 2)
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
110
120
130
150
160
180
200
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
105.00
115.50
126.00
136.50
157.50
168.00
189.00
210.00
Current
Zener Impedance
Z
ZK @
I
ZK
Z
ZT @
I
ZT
I
ZT
mA
Ohms
Ohms
mA
34.1
31.2
28.8
25.0
23.4
20.8
18.7
17.0
15.6
13.9
12.5
11.4
10.4
9.6
8.7
8.0
7.3
6.7
6.0
5.5
5.0
4.6
4.1
3.7
3.4
3.1
2.9
2.5
2.3
2.1
1.9
5.5
6.5
7.0
9.0
10.0
12
14
17.5
19
23
26
33
38
45
53
67
70
86
100
120
140
160
200
250
300
360
450
600
700
900
1200
550
550
550
600
600
650
650
650
700
700
750
800
850
900
950
1000
1100
1300
1500
1700
2000
2500
300
3100
4000
4500
5000
6000
6500
7000
8000
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
0.25
0.25
0.25
0.25
0.25
0.25
Maximum
DC Zener
Leakage Current Current
I
R @
V
R
I
ZM
uA
Volts
mA (dc)
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
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
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
56.0
62.2
69.2
76.0
83.6
91.2
98.8
114.0
121.6
136.8
152.0
136
125
115
100
94
83
75
68
63
56
50
45
42
38
35
32
29
27
24
22
20
18
16
15
13
12
11
10
9
8
7
Notes: 1. Tolerance and Voltage Regulation Designation - the type number listed indicates a
tolerance of ±5%.
2. VZ limits are to be guaranteed at thermal equilibrium.
http://www.luguang.cn
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mail:lge@luguang.cn
1SMA5926-1SMA5956
1.Watts Surface Mount Silicon Zener Diode
RATINGS AND CHARACTERISTIC CURVES (1SMA5926 THRU 1SMA5956)
FIG.1- STEADY STATE POWER DERATING
P
D
,
MAXIMUM POWER DISSIPATION (WATTS)
FIG.2- VZ = 12 THRU 68 VOLTS
100
4
3.2
I
Z
,
ZENER CURRENT (mA)
10
2.4
T
L
1.6
1
0.8
T
A
0
0
25
50
75
o
0.1
100
125
150
0
10
20
30
40
50
60
70
80
T, TEMPERATURE( C)
V
Z
,
ZENER VOLTAGE (VOLTS)
FIG.3- ZENER VOLTAGE - 14 TO 68 VOLTS
V
Z
@ I
Z1
Z
Z
, DYNAMIC IMPEDANCE (OHMS)
FIG.4- EFFECT OF ZENER VOLTAGE
100
O
VZ
,
TEMPERATURE COEFFICIENT (mV/
o
C)
100
I
Z(dc)
= 1 mA
10
10 mA
20 mA
10
I
Z(ms)
= 0.1 I
Z(dc)
100
10
10
V
Z
,
ZENER VOLTAGE (VOLTS)
100
V
Z
,
ZENER VOLTAGE (VOLTS)
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mail:lge@luguang.cn
Version: B07
1SMA5926-1SMA5956
1.Watts Surface Mount Silicon Zener Diode
RATINGS AND CHARACTERISTIC CURVES (1SMA5926 THRU 1SMA5956)
FIG.5- CAPACITANCE CURVE
1000
FIG.6- TYPICAL PULSE RATING CURVE
10
P
PK
, PEAK POWER (kW)
C, CAPACITANCE (pF)
MEASURED @
ZERO BIAS
MEASURED @
V
Z
/2
NONREPETITIVE, EXPONENTIAL
PULSE WAVEFORM, T
J
= 25
o
C
1
100
0.1
T
J
= 25 C
10
10
BREAKDOWN VOLTAGE (VOLTS)
o
0.01
100
0.01
0.1
Tp, PULSE WIDTH (ms)
1
10
FIG.7- PULSE WAVEFORM
120
120
FIG.8- PULSE WAVEFORM
10 s
Ippm, PEAK PULSE CURRENT (%)
100
80
Ippm, PEAK PULSE
CURRENT (%)
PEAK VALUE
I
ppm
T
A
= 25 C
PW (I
D
) IS DEFINED AS THE
POINT WHERE THE PEAK CURRENT
DECAYS TO 50% OF I
pp-
o
100
0.9 I
PEAK
80
8/20 s WAVEFORM
AS DEFINED BY ANSI C62.1
AND IEC 801-5,
60
HALF VALUE - I
pp
/2
60
0.5 I
PEAK
40
10/1000 s WAVEFORM
AS DEFINED BY R.E.A.
t
d
40
20
20
0.1 I
PEAK
0
0
1
2
t, TIME (ms)
T=8 s
0
0
0.02
0.04
t, TIME (ms)
3
4
5
0.06
0.08
0.1
T
20 s
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