WEITRON SMA5924B

SMA5921B series
Surface Mount Zener Diodes
SURFACE MOUNT
ZENER DIODES
1.5 WATTS
P b Lead(Pb)-Free
Features:
* 1.5W Power Dissipation
* For Surface Mounted Applications
* Zener Breakdown Voltage Range 6.8V to 68V
Mechanical Data
* Case: Molded plastic SMA/DO-214AC
* Epoxy: UL 94V-0 rate flame retardant
* Terminals: Solderable per MIL-STD-750 method 2026
* Polarity: cathode band
* Mounting position: Any
* Weight: 0.064 gram
SMA
SMA Outline Dimension
unit:mm
B
SMA
A
C
D
J
G
H
E
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Dim
Min
Max
A
B
2.20
2.92
4.00
4.60
C
1.27
1.63
D
E
0.15
0.31
4.48
5.59
G
H
J
0.10
0.20
0.76
1.52
1.70
2.62
23-Oct-06
SMA5921B series
Maximum Ratings (TA=25 C
Unless Otherwise Noted)
Symbol
Value
Unit
Half sine-wave superimposed on rated load
(JEDEC method)
IFSM
10
A
Power Dissipation2
PD
1.5
W
Maximun junction Temperature
Tj
150
°C
T STG
-55 to +150
°C
Characteristics
1
Storage Temperature Range
NOTES : (1) Measurd on 8.3ms, single half-sine wave or equivalent square wave, duty cycle = 4 pulses per minute maximum.
(2) Mounted on 5.0mm2(.013mm thick) land areas.
IzT
ZZK
(V)
( mA )
ZZT
(Ω)
( mA )
(μA)
(V)
Surge
Current
( mA )
SMA5921B
6.8
55.1
2.5
200
1.0
2.5
5.2
221
SMA5922B
7.5
50.0
3.0
400
0.5
2.5
6.0
200
SMA5923B
8.2
45.7
3.5
400
0.5
2.5
6.5
183
SMA5924B
9.1
41.2
4.0
500
0.5
2.5
7.0
165
SMA5925B
10
37.5
4.5
500
0.25
2.5
8.0
150
SMA5926B
11
34.1
5.5
550
0.25
2.5
8.4
136
SMA5927B
12
31.2
6.5
550
0.25
0.5
9.1
125
SMA5928B
13
28.8
7.0
550
0.25
0.5
9.9
115
SMA5929B
15
25.0
9.0
600
0.25
0.5
11.4
100
SMA5930B
16
23.4
10
600
0.25
0.5
12.2
94
SMA5931B
18
20.8
12
650
0.25
0.5
13.7
83
SMA5932B
20
18.7
14
650
0.25
0.5
15.2
75
SMA5933B
22
17.0
17.5
650
0.25
0.5
16.7
68
SMA5934B
24
15.6
19
700
0.25
0.5
18.2
63
SMA5935B
27
13.9
23
700
0.25
0.5
20.6
56
SMA5936B
30
12.5
26
750
0.25
0.5
22.8
50
SMA5937B
33
11.4
33
800
0.25
0.5
25.1
45
SMA5938B
36
10.4
38
850
0.25
0.5
27.4
42
SMA5939B
39
9.6
45
900
0.25
0.5
29.7
38
SMA5940B
43
8.7
53
950
0.25
0.5
32.7
35
SMA5941B
47
8.0
67
1000
0.25
0.5
35.8
32
SMA5942B
51
7.3
70
1100
0.25
0.5
38.8
29
SMA5943B
56
6.7
86
1300
0.25
0.5
42.6
27
SMA5944B
62
6.0
100
1500
0.25
0.5
47.1
24
SMA5945B
68
5.5
120
1700
0.25
0.5
51.7
22
Electrical Characteristic (Ta=25°C)
Part No.
Vz
(Ω)
IZK
IR ＠ VR
Suffix B for 5%
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23-Oct-06
SMA5921B series
VZ, TEMPERATURE COEFFICIENT (mV/°C)
5
4
1.5
1.0
0.5
0
25
0
50
75
125
100
150
8
VZ@IZT
6
4
2
0
-2
-4
175
3
4
5
6
7
8
9
FIG 1. STEADY STATE POWERDERATING
FIG 2. ZENER VOLTAGE-TO 12 VOLTS
1000
VZ@IZT
80
60
40
20
0
0
11
VZ,ZENERVOLTAGE(VOLTS)
120
100
10
TL,LEADTEMPERATURE(°C)
ZZ, DYNAMIC IMPEDANCE (OHMS)
VZ, TEMPERATURE COEFFICIENT (mV/°C)
PD, MAXIMUM POWER DISSIPATION (WATTS)
Typical Characteristics
20
40
60
80
12
TJ - 25°C
IZ(ms) = 0.1 IZ(dc)
VZ = 150V
100
91V
62V
10
22V
12V
6.8V
1
100 120 140 160 180 200
0.5
1
1.0
VZ, ZENERVOLTAGE(VOLTS)
100
100
IZ , ZENER TEST CURRENT (mA)
FIG 4. EFFECT OF ZENER CURRENT
FIG 3. ZENER VOLTAGE-10 TO 12 VOLTS
PPK, PEAK SURGE POWER (watts)
ZZ, DYNAMIC IMPEDANCE (ohms)
1K
200
Iz(dc) =1mA
100
70
50
30
20
10mA
10
7
5
3
20mA
2
5
7
Iz(ms) = 0.1Iz(dc)
10
20
30
50
70
RECTANGULAR NONREPETITIVE
WAVEFORM TJ = 25oC PRIOR TO
INITIAL PULSE
500
300
200
100
50
30
20
10
0.1 0.2 0.3
100
VZ, ZENER VOLTAGE (VOLTS)
2 3 5
0
20
50
100
Fig 6.VZ=12 THRU 82 VOLTS
100
100
50
30
20
10
IZ, ZENER CURRENT (mA)
IZ, ZENER CURRENT (mA)
1
PW, PULSE WIDTH (ms)
Fig 5. VZ = 6.8 THRU10VOLTS
5
3
2
1
0.5
0.3
0.2
0.1
5
0
1
2
3
4
5
6
7
8
9
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5
3
2
1
0.5
0.3
0.2
0.1
10
Fig.7 VZ, ZENER VOLTAGE (VOLTS)
WEITRON
50
30
20
10
0
10
20
30
40
50
60
70
80
90
100
Fig.8 VZ, ZENER VOLTAGE (VOLTS)
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23-Oct-06