Weitron MMBZ5234B Surface mount zener diode Datasheet

MMBZ5221B Series
Surface Mount Zener Diodes
SMALL SIGNAL
ZENER DIODES
225m WATTS
Features:
*225mw Power Dissipation
*Ideal for Surface Mountted Application
*Zener Breakdown Voltage Range 2.4V to 91V
3
Mechanical Data:
1
*Case : SOT-23 Molded plastic
*Terminals: Solderable per MIL-STD-202, Method 208
*Polarity: Cathode Indicated by Polarity Band
*Marking: Marking Code (See Table on Page 3)
*Weigh: 0.008grams(approx)
2
SOT-23
SOT-23 Outline Dimensions
Unit:mm
Dim
A
B
C
D
E
G
H
J
K
L
M
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Min
0.35
1.19
2.10
0.85
0.46
1.70
2.70
0.01
0.89
0.30
0.076
Max
0.51
1.40
3.00
1.05
1.00
2.10
3.10
0.13
1.10
0.61
0.25
MMBZ5221B Series
WEITRON
Maximum Ratings and Electrical Characteristics (TA=25 C Unless Otherwise Noted)
Symbol
Characteristics
Unit
Value
Total Power Dissipation on FR-5 Board
(1)
@TA=25 C
(1)
Thermal Resistance Junction to Ambient Air
Forward Voltage @ IF=10mA
Junction and Storage Temperature Range
PD
225
mW
R JA
556
C/W
VF
0.9
V
Tj,TSTG
-65 to+150
C
NOTES:1.FR-5=1.0*0.75*0.62in
ELECTRICAL
CHARACTERISTICS
(P inout: 1-Anode, 2-No C onnection, 3-C athode) (T A = 25 C
unles s otherwis e noted, V F = 0.9V Max. @ I F = 10 mA)
Symbol
I
IF
Parameter
VZ
R evers e Zener Voltage @ IZT
I ZT
R evers e C urrent
Z ZT
Maximum Zener Impedance @ I ZT
IR
R evers e Leakage C urrent @ V R
VR
R evers e Voltage
IF
F orward C urrent
VF
F orward Voltage @ I F
I ZK
R evers e C urrent
Z ZK
Maximum Zener Impedance@ I ZK
VZ VR
IR V F
I ZT
Zener Voltage Regulator
Device Marking
Item
MMBZ5221B
Series
WEITRON
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Marking
XX=Specific Device Code
(See Table on page3)
Equivalent Circuit Diagram
3
Cathode
1
Anode
V
WE IT R ON
MMBZ5221B Series
E L E C T R IC A L C HA R A C T E R IS T IC S
(P inout: 1-Anode, 2-NC , 3-C athode) (V F = 0.9 V Max @ I F = 10 mA for all types .)
Zener Voltage (Note)
V Z (Volts )
@ I ZT
Zener Impedanc e
Z ZT @ I ZT
L eakage C urrent
Z ZK @ I ZK
IR @ V R
Devic e
Devic e
Marking
Min
Nom
Max
mA
Ω
Ω
mA
uA
Volts
MMB Z5221B
MMB Z5222B
MMB Z5223B
MMB Z5224B
MMB Z5225B
18A
18B
18C
18D
18E
2.28
2.37
2.56
2.66
2.85
2.4
2.5
2.7
2.8
3
2.52
2.63
2.84
2.94
3.15
20
20
20
20
20
30
30
30
30
29
1200
1250
1300
1400
1600
0.25
0.25
0.25
0.25
0.25
100
100
75
75
50
1
1
1
1
1
MMB Z5226B
MMB Z5227B
MMB Z5228B
MMB Z5229B
MMB Z5230B
8A
8B
8C
8D
8E
3.13
3.42
3.70
4.08
4.46
3.3
3.6
3.9
4.3
4.7
3.47
3.78
4.10
4.52
4.94
20
20
20
20
20
28
24
23
22
19
1600
1700
1900
2000
1900
0.25
0.25
0.25
0.25
0.25
25
15
10
5
5
1
1
1
1
2
MMB Z5231B
MMB Z5232B
MMB Z5233B
MMB Z5234B
MMB Z5235B
8F
8G
8H
8J
8K
4.84
5.32
5.70
5.89
6.46
5.1
5.6
6
6.2
6.8
5.36
5.88
6.30
6.51
7.14
20
20
20
20
20
17
11
7
7
5
1600
1600
1600
1000
750
0.25
0.25
0.25
0.25
0.25
5
5
5
5
3
2
3
3.5
4
5
MMB Z5236B
MMB Z5237B
MMB Z5238B
MMB Z5239B
MMB Z5240B
8L
8M
8N
8P
8Q
7.12
7.79
8.26
8.64
9.50
7.5
8.2
8.7
9.1
10
7.88
8.61
9.14
9.56
10.50
20
20
20
20
20
6
8
8
10
17
500
500
600
600
600
0.25
0.25
0.25
0.25
0.25
3
3
3
3
3
6
6.5
6.5
7
8
MMB Z5241B
MMB Z5242B
MMB Z5243B
MMB Z5244B
MMB Z5245B
8R
8S
8T
8U
8V
10.4
11.40
12.35
13.30
14.25
11
12
13
14
15
11.55
12.60
13.65
14.70
15.75
20
20
9.5
9
8.5
22
30
13
15
16
600
600
600
600
600
0.25
0.25
0.25
0.25
0.25
2
1
0.5
0.1
0.1
8.4
9.1
9.9
10
11
MMB Z5246B
MMB Z5247B
MMB Z5248B
MMB Z5249B
MMB Z5250B
8W
8X
8Y
8Z
81A
15.20
16.15
17.10
18.05
19.00
16
17
18
19
20
16.80
17.85
18.90
19.95
21.00
7.8
7.4
7
6.6
6.2
17
19
21
23
25
600
600
600
600
600
0.25
0.25
0.25
0.25
0.25
0.1
0.1
0.1
0.1
0.1
12
13
14
14
15
MMB Z5251B
MMB Z5252B
MMB Z5253B
MMB Z5254B
MMB Z5255B
81B
81C
81D
81E
81F
20.90
22.80
23.75
25.65
26.60
22
24
25
27
28
23.10
25.20
26.25
28.35
29.40
5.6
5.2
5
4.6
4.5
29
33
35
41
44
600
600
600
600
600
0.25
0.25
0.25
0.25
0.25
0.1
0.1
0.1
0.1
0.1
17
18
19
21
21
MMB Z5256B
MMB Z5257B
MMB Z5258B
MMB Z5259B
MMB Z5260B
81G
81H
81J
81K
81L
28.50
31.35
34.20
37.05
40.85
30
33
36
39
43
31.50
34.65
37.80
40.95
45.15
4.2
3.8
3.4
3.2
3
49
58
70
80
93
600
700
700
800
900
0.25
0.25
0.25
0.25
0.25
0.1
0.1
0.1
0.1
0.1
23
25
27
30
33
MMB Z5261B
MMB Z5262B
MMB Z5263B
MMB Z5264B
MMB Z5265B
81M
81N
81P
81Q
81R
44.65
48.45
53.20
57.00
58.90
47
51
56
60
62
49.35
53.55
58.80
63.00
65.10
2.7
2.5
2.2
2.1
2
105
125
150
170
185
1000
1100
1300
1400
1400
0.25
0.25
0.25
0.25
0.25
0.1
0.1
0.1
0.1
0.1
36
39
43
46
47
MMB Z5266B
MMB Z5267B
MMB Z5268B
MMB Z5269B
MMB Z5270B
81S
81T
81U
81V
81W
64.60
71.25
77.90
82.65
86.45
68
75
82
87
91
71.40
78.75
86.10
91.35
95.55
1.8
1.7
1.5
1.4
1.4
230
270
330
370
400
1600
1700
2000
2200
2300
0.25
0.25
0.25
0.25
0.25
0.1
0.1
0.1
0.1
0.1
52
56
62
68
69
NOT E . Zener voltage is meas ured with a puls e tes t current I Z at an ambient temperature of 25 C
WEITRON
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WE IT R ON
MMBZ5221B Series
T Y P IC A L C HA R A C T E R IS T IC S
1000
1000
C, CAPACITANCE (pF)
I R , LEAKAGE CURRENT (µA)
TA = 25C
0 V BIAS
1 V BIAS
100
B IA S T A
50% OF V Z NOM
10
100
10
1
+150 C
0.1
0.01
+25 C
0.001
±55 C
0.0001
1
0.00001
1
100
10
0
10
20
V Z , NOMINA L ZE NE R V OLTA G E (V )
30
40
50
60
F igure 5. Typic al C apac itanc e
90
100
TA = 25C
I Z , ZENER CURRENT (mA)
TA = 25C
I Z , ZENER CURRENT (mA)
80
F igure 6. Typic al L eakage C urrent
100
10
1
0.1
0.01
70
V Z , NOMINA L ZE NE R V OL
TA G E (V )
0
2
4
6
8
10
12
V Z , ZE NE R V OLTA G E (V )
F igure 7. Zener Voltage vers us Zener C urrent
(V Z Up to 12 V )
WEITRON
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10
1
0.1
0.01
10
30
50
70
90
V Z , ZE NE R V OLTA G E (V )
F igure 8. Zener Voltage vers us Zener C urrent
(12 V to 91 V )
WE IT R ON
MMBZ5221B Series
100
8
7
θ VZ, TEMPERATURE COEFFICIENT (mV/C)
θ VZ, TEMPERATURE COEFFICIENT (mV/C)
T Y P IC A L C HA R A C T E R IS T IC S
T Y P IC A L TC VA L UE S
F OR MMB Z5221B LT 1 S E R IE S
6
5
4
VZ @ I ZT
3
2
1
0
±1
±2
±3
2
3
4
5
6
7
8
9
10
11
VZ @ I ZT
10
1
10
12
100
V Z , NOMINA L ZE NE R V OL
TA G E (V )
V Z , NOMINA L ZE NE R V OLTA G E (V )
F igure 1. Temperature C oeffic ients
(Temperature R ange ± 5 5 C to +150 C )
F igure 2. Temperature C oeffic ients
(Temperature R ange ±5 5 C to +150 C )
1000
1000
T J = 25 C
I Z(A C ) = 0.1Z(I DC )
f = 1 kHz
75 V (MMB Z5267BTL1)
91 V (MMB Z5270BTL1)
IF, FORWARD CURRENT (mA)
Z ZT, DYNAMIC IMPEDANCE Ω
()
T Y P IC A L TC VA L UE S
F OR MMB Z5221B LT 1 S E R IE S
IZ = 1 mA
100
5 mA
20 mA
10
100
10
150 C
1
1
10
V Z , NOMINA L ZE NE R V OLTA G E
F igure 3. E ffec t of Zener
oltage
V
on
Zener Impedanc e
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100
1
0.4
0.5
75 C 25 C
0.6
0.7
0C
0.8
0.9
1.0
1.1
V F, F ORWA R D V OLTA G E (V )
F igure 4. Typic al F orward Voltage
1.2
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