SMA5921
THRU
SMA5945
Elektronische Bauelemente
RoHS Compliant Product
A suffix of "-C" specifies halogen & lead-free
VOLTAGE 6.8V ~ 68V
1.5 Watts Surface Mount Zener Diode
FEATURES
SMA
.
.
.
.
.
For surface mounted applications
1.5 W power dissipation
Low reverse current
Ideally suited for automated assembly processes
Epitaxial construction
Dimensions in
Dimensions in
Inches
0.049
0.157
0.098
0.078
0.002
0.188
0.030
0.006
0.065
0.181
0.114
0.096
0.008
0.208
0.060
0.012
.
Case: Molded plastic
.
Epoxy: UL 94V-0 rate flame retardant
.
Metallurgically bonded construction
.
Polarity: Color band denotes cathode end
.
Mounting position: Any
.
Weight: 0.064 grams
MECHANICAL DATA
A
B
D
C
A
B
Millimeters
1.25
3.99
2.50
1.98
0.051
4.78
0.76
0.152
1.65
4.60
2.90
2.44
0.203
5.28
1.52
0.305
H
C
D
E
F
G
H
E
G
F
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS
Rating 25 C ambient temperature unless otherwise specified.
O
Electrical Characteristics
Power Dissipation (Note 1)
Half sine-wave superimposed on rated load
JEDEC method (Note 2)
Symbol
P
D
Value
1.5
Unit
W
I
FSM
10
A
Operating junction and Storage Temperature
Note: (1) Mounted on 5.0mm
2
(.013mm thick) land areas.
T
J
, T
STG
-55 to +155
O
C
(2) Measurd on 8.3ms, single half-sine wave or equivalent square wave, duty cycle = 4 pulses per minute maximum.
http://www.SeCoSGmbH.com/
Any changing of specification will not be informed individual
01-Jun-2007 Rev. D
Page 1 of
4
SMA5921
THRU
SMA5945
Elektronische Bauelemente
VOLTAGE 6.8V ~ 68V
1.5 Watts Surface Mount Zener Diode
Electrical Characteristic (Ta=25 C)
Part No.
SMA5921B
SMA5922B
SMA5923B
SMA5924B
SMA5925B
SMA5926B
SMA5927B
SMA5928B
SMA5929B
SMA5930B
SMA5931B
SMA5932B
SMA5933B
SMA5934B
SMA5935B
SMA5936B
SMA5937B
SMA5938B
SMA5939B
SMA5940B
SMA5941B
SMA5942B
SMA5943B
SMA5944B
SMA5945B
o
Vz
(V)
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
Iz
T
( mA )
55.1
50.0
45.7
41.2
37.5
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
Z
ZT
(Ohm)
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
38
45
53
67
70
86
100
120
Z
ZK
(Ohm)
200
400
400
500
500
550
550
550
600
600
650
650
650
700
700
750
800
850
900
950
1000
1100
1300
1500
1700
I
ZK
( mA )
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
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
IR(uA) Max.
V
R
(V)
2.5
2.5
2.5
2.5
2.5
2.5
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
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
27.4
29.7
32.7
35.8
38.8
42.6
47.1
51.7
Surge
Current
( mA )
221
200
183
165
150
136
125
115
100
94
83
75
68
63
56
50
45
42
38
35
32
29
27
24
22
Suffix "B" for 5% tolerance.
http://www.SeCoSGmbH.com/
Any changing of specification will not be informed individual
01-Jun-2007 Rev. D
Page
2
of
4
SMA5921
THRU
SMA5945
Elektronische Bauelemente
RATING AND CHARACTERISTIC CURVES
FIG 1. STEADY STATE POWERDERATING
P
D
, MAXIMUM POWER DISSIPATION (Watts)
V
Z
, TEMPERATURE COEFFICIENT (mV/°C)
VOLTAGE 6.8V ~ 68V
1.5 Watts Surface Mount Zener Diode
FIG 2. ZENER VOLTAGE-TO 12 VOLTS
8
6
4
2
0
-2
-4
3
VZ@IZT
5
4
1.5
1.0
0.5
0
0
25
50
75
100
125
150
175
4
5
6
7
8
9
10
11
12
T
L
,LEADTEMPERATURE(°C)
V
Z
,ZENERVOLTAGE(VOLTS)
FIG 3. ZENER VOLTAGE-10 TO 12 VOLTS
FIG 4. EFFECT OF ZENER CURRENT
V
Z
, TEMPERATURE COEFFICIENT (mV/°C)
120
100
80
60
40
20
0
VZ@IZT
1000
ZZ, DYNAMIC IMPEDANCE (OHMS)
TJ - 25°C
IZ(ms) = 0.1 IZ(dc)
VZ = 150V
100
91V
62V
10
22V
12V
0
20
40
60
80
100 120 140 160 180 200
1
0.5
1
1.0
100
6.8V
100
V
Z
, ZENERVOLTAGE(VOLTS)
I
Z
, ZENER TEST CURRENT (mA)
http://www.SeCoSGmbH.com/
Any changing of specification will not be informed individual
01-Jun-2007 Rev.
D
Page 3 of 4
SMA5921
THRU
SMA5945
Elektronische Bauelemente
VOLTAGE 6.8V ~ 68V
1.5 Watts Surface Mount Zener Diode
1K
PPK, PEAK SURGE POWER (Watts)
ZZ, DYNAMIC IMPEDANCE (ohms)
200
100
70
50
30
20
Iz(dc) =1mA
500
300
200
100
50
30
20
10
0.1 0.2 0.3
5
RECTANGULAR NONREPETITIVE
WAVEFORM TJ = 25 C PRIOR TO
INITIAL PULSE
O
10mA
10
7
5
3
2
20mA
7
10
20
30
Iz(ms) = 0.1Iz(dc)
50
70
100
5
1
2 3 5
0
20
50
100
VZ, ZENER VOLTAGE (VOLTS)
P
W
, PULSE WIDTH (ms)
Fig 5. VZ = 6.8 THRU 10 VOLTS
Fig 6.VZ=12 THRU 82 VOLTS
100
100
50
30
20
10
5
3
2
1
0.5
0.3
0.2
0.1
0
1
2
3
4
5
IZ, ZENER CURRENT (mA)
10
5
3
2
1
0.5
0.3
0.2
0.1
6
7
8
9
10
IZ, ZENER CURRENT (mA)
50
30
20
0
10 20 30 40
50 60 70
80 90 100
VZ, ZENER VOLTAGE (VOLTS)
VZ, ZENER VOLTAGE (VOLTS)
http://www.SeCoSGmbH.com/
Any changing of specification will not be informed individual
01-Jun-2007 Rev. D
Page
4
of
4
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