Zeners MMBZ5221B-MMBZ5257B
Zeners
MMBZ5221B-MMBZ5257B
Tolerance = 5%
Absolute Maximum Ratings *
Symbol
P
D
T
STG
T
J
Parameter
Power Dissipation
Storage Temperature Range
Operating Junction Temperature
T
A
= 25°C unless otherwise noted
3
Value
350
-55 to +150
+150
Units
mW
°C
°C
1
2
* These ratings are limiting values above which the serviceability of the diode may be impaired.
NOTES:
1) These ratings are based on a maximum junction temperature of 150 degrees C.
2) These are steady state limits. The factory should be consulted on applications involving pulsed or low duty cycle
operations.
SOT-23
CONNECTION
DIAGRAM
3
1
2 NC
Electrical Characteristics
Device
MMBZ5221B
MMBZ5223B
MMBZ5226B
MMBZ5227B
MMBZ5228B
MMBZ5229B
MMBZ5230B
MMBZ5231B
MMBZ5232B
MMBZ5233B
MMBZ5234B
MMBZ5235B
MMBZ5236B
MMBZ5237B
MMBZ5238B
MMBZ5239B
MMBZ5240B
MMBZ5241B
MMBZ5242B
MMBZ5243B
MMBZ5244B
MMBZ5245B
MMBZ5246B
MMBZ5247B
Mark
18A
18C
8A
8B
8C
8D
8E
8F
8G
8H
8J
8K
8L
8M
8N
8P
8Q
8R
8S
8T
8U
8V
8W
8X
V
Z
(V)
2.4
2.7
3.3
3.6
3.9
4.3
4.7
5.1
5.6
6.0
6.2
6.8
7.5
8.2
8.7
9.1
10
11
12
13
14
15
16
17
T
A
=25°C unless otherwise noted
Z
Z
(Ω) @ I
Z
(mA)
Ω
30
20
30
20
28
20
24
20
23
20
22
20
19
17
11
7.0
7.0
5.0
6.0
8.0
8.0
10
17
22
30
13
15
16
17
19
20
20
20
20
20
20
20
20
20
20
20
20
20
9.5
9.0
8.5
7.8
7.4
Z
ZK
(Ω) @ I
ZK
(mA)
Ω
1,200
0.25
1,300
0.25
1,600
0.25
1,700
0.25
1,900
0.25
1,000
0.25
1,900
1,600
1,600
1,600
1,000
750
500
500
600
600
600
600
600
600
600
600
600
600
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
I
R
(µA) @ V
R
(V)
µ
100
1.0
75
1.0
25
1.0
15
1.0
10
1.0
5.0
1.0
5.0
5.0
5.0
5.0
5.0
3.0
3.0
3.0
3.0
3.0
3.0
2.0
1.0
0.5
0.1
0.1
0.1
0.1
2.0
2.0
3.0
3.5
4.0
5.0
6.0
6.5
6.5
7.0
8.0
8.4
8.1
9.9
10
11
12
13
V
F
Forward Voltage = 0.9V Maximum @ I
F
= 10mA for all MMBZ5200 series
©2004 Fairchild Semiconductor Corporation
MMBZ5221B-MMBZ5257B, Rev. A2
Zeners MMBZ5221B-MMBZ5257B
Electrical Characteristics
Device
MMBZ5248B
MMBZ5249B
MMBZ5250B
MMBZ5251B
MMBZ5252B
MMBZ5253B
MMBZ5254B
MMBZ5255B
MMBZ5256B
MMBZ5257B
Mark
8Y
8Z
81A
81B
81C
81D
81E
81F
81G
81H
V
Z
(V)
18
19
20
22
24
25
27
28
30
33
T
A
=25°C unless otherwise noted
Z
Z
(Ω) @ I
Z
(mA)
Ω
21
7.0
23
6.6
25
6.2
29
5.6
33
5.2
35
41
44
49
58
5.0
4.6
4.5
4.2
3.8
Z
ZK
(Ω) @ I
ZK
(mA)
Ω
600
0.25
600
0.25
600
0.25
600
0.25
600
0.25
600
600
600
600
600
0.25
0.25
0.25
0.25
0.25
I
R
(µA) @ V
R
(V)
µ
0.1
14
0.1
14
0.1
15
0.1
17
0.1
18
0.1
0.1
0.1
0.1
0.1
19
21
21
23
25
V
F
Forward Voltage = 0.9V Maximum @ I
F
= 10mA for all MMBZ5200 series
©2004 Fairchild Semiconductor Corporation
MMBZ5221B-MMBZ5257B, Rev. A2
Zeners MMBZ5221B-MMBZ5257B
Typical Characteristics
35
5000
V
Z
= 33.0V
V
Z
- ZENER VOLTAGE (V)
25
20
15
10
5
1
V
Z
= 5.1V
V
Z
= 3.3V
T
A
= 25
º
C
Z
Z
- IMPEDANCE (ohms)
30
2000
1000
500
V
Z
= 3.3V
200
100
50
V
Z
= 5.1V
T
A
= 25
º
C
V
Z
= 33.0V
V
Z
= 12.0V
20
10
V
Z
= 12.0V
5
2
1
0.1
2
5
10
I
Z
- ZENER CURRENT (mA)
20
30
0.2
0.5
1
2
5
I
Z
- ZENER CURRENT (mA)
10
20
Zener Current vs. Zener Voltage
Zener Current vs. Zener Impedence
5
V
Z
= 3.3V
6
V
Z
= 5.1V
V
Z
- ZENER VOLTAGE (V)
4
T
A
= -25
º
C
T
A
= 25
º
C
V
Z
- ZENER VOLTAGE (V)
5.5
T
A
= 125
º
C
3
T
A
= 85
º
C
5
T
A
= 100
º
C
T
A
= 25
º
C
T
A
= -25
º
C
T
A
= 85
º
C
2
T
A
= 100
º
C
T
A
= 125
º
C
4.5
1
4
1
2
5
10
I
Z
- ZENER CURRENT (mA)
20
30
1
2
5
10
I
Z
- ZENER CURRENT (mA)
20
30
3.3 Zener Voltage vs. Temperature
5.1 Zener Voltage vs. Temperature
15
V
Z
= 12.0V
40
T
A
= 125
º
C
V
Z
= 33.0V
T
A
= 100
º
C
T
A
= 125
º
C
V
Z
- ZENER VOLTAGE (V)
V
Z
- ZENER VOLTAGE (V)
35
10
T = -25
º
C
A
T
A
= 25
º
C
T
A
= 85
º
C
T
A
= 100
º
C
30
T
A
= -25
º
C
T
A
= 25
º
C
T
A
= 85
º
C
5
25
0
1
2
5
10
I
Z
- ZENER CURRENT (mA)
20
30
20
1
2
5
10
I
Z
- ZENER CURRENT (mA)
20
30
12 Zener Voltage vs. Zener Temperature
33 Zener Voltage vs. Zener Temperature
©2004 Fairchild Semiconductor Corporation
MMBZ5221B-MMBZ5257B, Rev. A2
TRADEMARKS
The following are registered and unregistered trademarks Fairchild Semiconductor owns or is authorized to use and is
not intended to be an exhaustive list of all such trademarks.
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2
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Across the board. Around the world.™
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As used herein:
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1. Life support devices or systems are devices or
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systems which, (a) are intended for surgical implant into
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with instructions for use provided in the labeling, can be
effectiveness.
reasonably expected to result in significant injury to the
user.
PRODUCT STATUS DEFINITIONS
Definition of Terms
Datasheet Identification
Advance Information
Product Status
Formative or
In Design
Definition
This datasheet contains the design specifications for
product development. Specifications may change in
any manner without notice.
This datasheet contains preliminary data, and
supplementary data will be published at a later date.
Fairchild Semiconductor reserves the right to make
changes at any time without notice in order to improve
design.
This datasheet contains final specifications. Fairchild
Semiconductor reserves the right to make changes at
any time without notice in order to improve design.
Preliminary
First Production
No Identification Needed
Full Production
Obsolete
Not In Production
This datasheet contains specifications on a product
that has been discontinued by Fairchild semiconductor.
The datasheet is printed for reference information only.
Rev. I7
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