Semiconductor Components Industries, LLC, 2004
August, 2004 - Rev. 5
1
Publication Order Number:
MMBZ5221BLT1/D
MMBZ5221BLT1 Series
Preferred Device
Zener Voltage Regulators
225 mW SOT-23 Surface Mount
This series of Zener diodes is offered in the convenient, surface
mount plastic SOT-23 package. These devices are designed to provide
voltage regulation with minimum space requirement. They are well
suited for applications such as cellular phones, hand held portables,
and high density PC boards.
Features
Pb-Free Packages are Available
225 mW Rating on FR-4 or FR-5 Board
Zener Voltage Range - 2.4 V to 91 V
Package Designed for Optimal Automated Board Assembly
Small Package Size for High Density Applications
ESD Rating of Class 3 (>16 KV) per Human Body Model
Mechanical Characteristics
CASE:
Void-free, transfer-molded, thermosetting plastic case
FINISH:
Corrosion resistant finish, easily solderable
MAXIMUM CASE TEMPERATURE FOR SOLDERING PURPOSES:
260
C for 10 Seconds
POLARITY:
Cathode indicated by polarity band
FLAMMABILITY RATING:
UL 94 V-0
MAXIMUM RATINGS
Rating
Symbol
Max
Unit
Total Power Dissipation on FR-5 Board,
(Note 1) @ T
A
= 25
C
Derated above 25
C
P
D
225
1.8
mW
mW/
C
Thermal Resistance,
Junction-to-Ambient
R
q
JA
556
C/W
Total Power Dissipation on Alumina
Substrate, (Note 2) @ T
A
= 25
C
Derated above 25
C
P
D
300
2.4
mW
mW/
C
Thermal Resistance,
Junction-to-Ambient
R
q
JA
417
C/W
Junction and Storage
Temperature Range
T
J
, T
stg
-65 to +150
C
Maximum ratings are those values beyond which device damage can occur.
Maximum ratings applied to the device are individual stress limit values (not
normal operating conditions) and are not valid simultaneously. If these limits
are exceeded, device functional operation is not implied, damage may occur
and reliability may be affected.
1. FR-5 = 1.0 X 0.75 X 0.62 in.
2. Alumina = 0.4 X 0.3 X 0.024 in, 99.5% alumina.
Device**
Package
Shipping
ORDERING INFORMATION
SOT-23
CASE 318
STYLE 8
3
Cathode
1
Anode
MMBZ52xxBLT1
SOT-23
3000/Tape & Reel
MARKING
DIAGRAM
See specific marking information in the device marking
column of the Electrical Characteristics table on page 3 of
this data sheet.
DEVICE MARKING INFORMATION
xxx = Specific Device Code
M
= Date Code
xxx
**The "T1" suffix refers to an 8 mm, 7 inch reel.
The "T3" suffix refers to an 8 mm, 13 inch reel.
M
MMBZ52xxBLT3
SOT-23
10,000/Tape & Reel
3
1
2
Devices listed in
bold, italic are ON Semiconductor
Preferred devices. Preferred devices are recommended
choices for future use and best overall value.
MMBZ52xxBLT1G
SOT-23
(Pb-Free)
3000/Tape & Reel
For information on tape and reel specifications,
including part orientation and tape sizes, please
refer to our Tape and Reel Packaging Specifications
Brochure, BRD8011/D.
MMBZ52xxBLT3G
SOT-23
(Pb-Free)
10,000/Tape & Reel
http://onsemi.com
MMBZ5221BLT1 Series
http://onsemi.com
2
ELECTRICAL CHARACTERISTICS
(Pinout: 1-Anode, 2-No Connection, 3-Cathode)
(T
A
= 25
C
unless otherwise noted, V
F
= 0.95 V Max. @ I
F
= 10 mA)
Symbol
Parameter
V
Z
Reverse Zener Voltage @ I
ZT
I
ZT
Reverse Current
Z
ZT
Maximum Zener Impedance @ I
ZT
I
ZK
Reverse Current
Z
ZK
Maximum Zener Impedance @ I
ZK
I
R
Reverse Leakage Current @ V
R
V
R
Reverse Voltage
I
F
Forward Current
V
F
Forward Voltage @ I
F
Zener Voltage Regulator
I
F
V
I
I
R
I
ZT
V
R
V
Z
V
F
MMBZ5221BLT1 Series
http://onsemi.com
3
ELECTRICAL CHARACTERISTICS
(Pinout: 1-Anode, 2-NC, 3-Cathode)
(V
F
= 0.9 V Max @ I
F
= 10 mA for all types.)
Zener Voltage (Note 3)
Zener Impedance
Leakage Current
Device
V
Z
(Volts)
@ I
ZT
Z
ZT
@ I
ZT
Z
ZK
@ I
ZK
I
R
@ V
R
Device
Device
Marking
Min
Nom
Max
mA
W
W
mA
m
A
Volts
MMBZ5221BL
18A
2.28
2.4
2.52
20
30
1200
0.25
100
1
MMBZ5222BL
18B
2.37
2.5
2.63
20
30
1250
0.25
100
1
MMBZ5223BL
18C
2.56
2.7
2.84
20
30
1300
0.25
75
1
MMBZ5224BL
18D
2.66
2.8
2.94
20
30
1400
0.25
75
1
MMBZ5225BL
18E
2.85
3
3.15
20
29
1600
0.25
50
1
MMBZ5226BL
8A
3.13
3.3
3.47
20
28
1600
0.25
25
1
MMBZ5227BL
8B
3.42
3.6
3.78
20
24
1700
0.25
15
1
MMBZ5228BL
8C
3.70
3.9
4.10
20
23
1900
0.25
10
1
MMBZ5229BL
8D
4.08
4.3
4.52
20
22
2000
0.25
5
1
MMBZ5230BL
8E
4.46
4.7
4.94
20
19
1900
0.25
5
2
MMBZ5231BL
8F
4.84
5.1
5.36
20
17
1600
0.25
5
2
MMBZ5232BL
8G
5.32
5.6
5.88
20
11
1600
0.25
5
3
MMBZ5233BL
8H
5.70
6
6.30
20
7
1600
0.25
5
3.5
MMBZ5234BL
8J
5.89
6.2
6.51
20
7
1000
0.25
5
4
MMBZ5235BL
8K
6.46
6.8
7.14
20
5
750
0.25
3
5
MMBZ5236BL
8L
7.12
7.5
7.88
20
6
500
0.25
3
6
MMBZ5237BL
8M
7.79
8.2
8.61
20
8
500
0.25
3
6.5
MMBZ5238BL
8N
8.26
8.7
9.14
20
8
600
0.25
3
6.5
MMBZ5239BL
8P
8.64
9.1
9.56
20
10
600
0.25
3
7
MMBZ5240BL
8Q
9.50
10
10.50
20
17
600
0.25
3
8
MMBZ5241BL
8R
10.4
11
11.55
20
22
600
0.25
2
8.4
MMBZ5242BL
8S
11.40
12
12.60
20
30
600
0.25
1
9.1
MMBZ5243BL
8T
12.35
13
13.65
9.5
13
600
0.25
0.5
9.9
MMBZ5244BL
8U
13.30
14
14.70
9
15
600
0.25
0.1
10
MMBZ5245BL
8V
14.25
15
15.75
8.5
16
600
0.25
0.1
11
MMBZ5246BL
8W
15.20
16
16.80
7.8
17
600
0.25
0.1
12
MMBZ5247BL
8X
16.15
17
17.85
7.4
19
600
0.25
0.1
13
MMBZ5248BL
8Y
17.10
18
18.90
7
21
600
0.25
0.1
14
MMBZ5249BL
8Z
18.05
19
19.95
6.6
23
600
0.25
0.1
14
MMBZ5250BL
81A
19.00
20
21.00
6.2
25
600
0.25
0.1
15
MMBZ5251BL
81B
20.90
22
23.10
5.6
29
600
0.25
0.1
17
MMBZ5252BL
81C
22.80
24
25.20
5.2
33
600
0.25
0.1
18
MMBZ5253BL
81D
23.75
25
26.25
5
35
600
0.25
0.1
19
MMBZ5254BL
81E
25.65
27
28.35
4.6
41
600
0.25
0.1
21
MMBZ5255BL
81F
26.60
28
29.40
4.5
44
600
0.25
0.1
21
MMBZ5256BL
81G
28.50
30
31.50
4.2
49
600
0.25
0.1
23
MMBZ5257BL
81H
31.35
33
34.65
3.8
58
700
0.25
0.1
25
MMBZ5258BL
81J
34.20
36
37.80
3.4
70
700
0.25
0.1
27
MMBZ5259BL
81K
37.05
39
40.95
3.2
80
800
0.25
0.1
30
MMBZ5260BL
81L
40.85
43
45.15
3
93
900
0.25
0.1
33
MMBZ5261BL
81M
44.65
47
49.35
2.7
105
1000
0.25
0.1
36
MMBZ5262BL
81N
48.45
51
53.55
2.5
125
1100
0.25
0.1
39
MMBZ5263BL
81P
53.20
56
58.80
2.2
150
1300
0.25
0.1
43
MMBZ5264BL
81Q
57.00
60
63.00
2.1
170
1400
0.25
0.1
46
MMBZ5265BL
81R
58.90
62
65.10
2
185
1400
0.25
0.1
47
MMBZ5266BL
81S
64.60
68
71.40
1.8
230
1600
0.25
0.1
52
MMBZ5267BL
81T
71.25
75
78.75
1.7
270
1700
0.25
0.1
56
MMBZ5268BL
81U
77.90
82
86.10
1.5
330
2000
0.25
0.1
62
MMBZ5269BL
81V
82.65
87
91.35
1.4
370
2200
0.25
0.1
68
MMBZ5270BL
81W
86.45
91
95.55
1.4
400
2300
0.25
0.1
69
3. Zener voltage is measured with a pulse test current I
Z
at an ambient temperature of 25
C
NOTE:
MMBZ5233BLT1, MMBZ5246BLT1, MMBZ5251BLT1, and MMBZ5252BLT1 Not Available in 10,000/Tape & Reel.
MMBZ5221BLT1 Series
http://onsemi.com
4
TYPICAL CHARACTERISTICS
VZ
,
TEMPERA
TURE COEFFICIENT
(mV/
C)
V
Z
, NOMINAL ZENER VOLTAGE (V)
-3
-2
-1
0
1
2
3
4
5
6
7
8
12
11
10
9
8
7
6
5
4
3
2
Figure 1. Temperature Coefficients
(Temperature Range - 55
C to +150
C)
TYPICAL T
C
VALUES
FOR MMBZ5221BLT1 SERIES
V
Z
@ I
ZT
VZ
,
TEMPERA
TURE COEFFICIENT
(mV/
C)
100
10
1
10
100
V
Z
, NOMINAL ZENER VOLTAGE (V)
Figure 2. Temperature Coefficients
(Temperature Range - 55
C to +150
C)
TYPICAL T
C
VALUES
FOR MMBZ5221BLT1 SERIES
V
Z
@ I
ZT
100
V
Z
, NOMINAL ZENER VOLTAGE
Figure 3. Effect of Zener Voltage on
Zener Impedance
10
1
Z ZT
, DYNAMIC IMPEDANCE (
)
1000
100
10
1
T
J
= 25
C
I
Z(AC)
= 0.1 I
Z(DC)
f = 1 kHz
I
Z
= 1 mA
5 mA
20 mA
V
F
, FORWARD VOLTAGE (V)
Figure 4. Typical Forward Voltage
1.2
1.1
1.0
0.9
0.8
0.7
0.6
0.5
0.4
I F
, FOR
W
ARD CURRENT
(mA)
1000
100
10
1
75 V (MMBZ5267BLT1)
91 V (MMBZ5270BLT1)
150
C
75
C 25
C
0
C
MMBZ5221BLT1 Series
http://onsemi.com
5
TYPICAL CHARACTERISTICS
C, CAP
ACIT
ANCE (pF)
100
V
Z
, NOMINAL ZENER VOLTAGE (V)
Figure 5. Typical Capacitance
1000
100
10
1
10
1
BIAS AT
50% OF V
Z
NOM
T
A
= 25
C
0 V BIAS
1 V BIAS
12
V
Z
, ZENER VOLTAGE (V)
100
10
1
0.1
0.01
10
8
6
4
2
0
T
A
= 25
C
I Z
, ZENER CURRENT
(mA)
V
Z
, ZENER VOLTAGE (V)
100
10
1
0.1
0.0110
30
50
70
90
T
A
= 25
C
I R
, LEAKAGE CURRENT
(
A
)
90
V
Z
, NOMINAL ZENER VOLTAGE (V)
Figure 6. Typical Leakage Current
1000
100
10
1
0.1
0.01
0.001
0.0001
0.00001
80
70
60
50
40
30
20
10
0
+150
C
+ 25
C
- 55
C
I Z
, ZENER CURRENT
(mA)
Figure 7. Zener Voltage versus Zener Current
(V
Z
Up to 12 V)
Figure 8. Zener Voltage versus Zener Current
(12 V to 91 V)
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