MMBZ5221B - MMBZ5259B
Document number: DS18011 Rev. 24 - 2
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www.diodes.com
February 2018
© Diodes Incorporated
MMBZ5221B - MMBZ5259B
350mW SURFACE MOUNT ZENER DIODE
Features
Planar Die Construction
350mW Power Dissipation on FR-4 PCB
General Purpose, Medium Current
Ideally Suited for Automated Assembly Processes
Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
Halogen and Antimony Free. “Green” Device (Notes 3 & 4)
Qualified to AEC-Q101 Standards for High Reliability
Mechanical Data
Case: SOT23
Case Material: Molded Plastic, “Green” Molding Compound.
UL Flammability Classification Rating 94V-0
Moisture Sensitivity: Level 1 per J-STD-020
Terminal Connections: See Diagram
Terminals: Matte Tin Finish Annealed over Alloy 42 Leadframe
(Lead Free Plating). Solderable per MIL-STD-202, Method 208
Weight: 0.008 grams (Approximate)
Ordering Information (Notes 5 & 6)
Device
Qualification
Packaging
Shipping
(Type Number)-7-F*
Commercial
SOT23
3,000/Tape & Reel
(Type Number)Q-7-F* (Note 7)
Automotive
SOT23
3,000/Tape & Reel
(Type Number)-13-F*
Commercial
SOT23
10,000/Tape & Reel
(Type Number)Q-13-F* (Note 7)
Automotive
SOT23
10,000/Tape & Reel
* Add “-7-F” to the appropriate type number in Electrical Characteristics Table from Page 2. Example: 6.2V Zener = MMBZ5234B-7-F.
Notes: 1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant.
2. See http://www.diodes.com for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green" and Lead-free.
3. Halogen- and Antimony-free "Green” products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and
<1000ppm antimony compounds.
4. Product manufactured with Date Code OW (week 42, 2009) and newer are built with Green Molding Compound. Product manufactured prior to Date
Code OW are built with Non-Green Molding Compound and may contain Halogens or Sb2O3 Fire Retardants.
5. For Packaging Details, go to our website at http://www.diodes.com.
6. Selected voltages are available on 13" reels (10,000 devices per reel). Add “-13-F” to the appropriate type number in Electrical Characteristics Table from
Page 2. Example: 6.2V Zener = MMBZ5234B-13-F. Please contact your Diodes Inc. sales representative for availability.
7. Automotive products are AEC-Q10x qualified and are PPAP capable. Automotive, AEC-Q10x and standard products are and thermally the same, except
where specified. For more information, please refer to https://www.diodes.com/quality/product-compliance-definitions/.
Marking Information
Date Code Key
Year
2012
2013
2014
2015
2016
2017
2018
…
2021
2022
2023
Code
Z
A
B
C
D
E
F
…
I
J
K
Month
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Code
1
2
3
4
5
6
7
8
9
O
N
D
Top View
Device Schematic
SOT23
K = SAT (Shanghai Assembly / Test site)
xx = Product Type Marking Code
See Electrical Characteristics Table
YM = Date Code Marking
Y = Year (ex: F = 2018)
M = Month (ex: 9 = September)
C = CAT (Chengdu Assembly / Test site)
xx = Product Type Marking Code
See Electrical Characteristics Table
YM = Date Code Marking
Y = Year (ex: F = 2018)
M = Month (ex: 9 = September)
Cxx
YM
Kxx
YM
e3
MMBZ5221B - MMBZ5259B
Document number: DS18011 Rev. 24 - 2
2 of 5
www.diodes.com
February 2018
© Diodes Incorporated
MMBZ5221B - MMBZ5259B
Maximum Ratings (@TA = +25°C, unless otherwise specified.)
Characteristic
Symbol
Value
Unit
Forward Voltage @ IF = 10mA
VF
0.9
V
Thermal Characteristics
Characteristic
Symbol
Value
Unit
Power Dissipation (Note 8)
PD
350
mW
Thermal Resistance, Junction to Ambient Air (Note 8)
RθJA
357
°C/W
Operating and Storage Temperature Range
TJ, TSTG
-65 to +150
°C
Note: 8. Mounted on FR4 PC Board with recommended pad layout which can be found on our website at http://www.diodes.com.
Electrical Characteristics (@TA = +25°C, unless otherwise specified.)
Type
Number
Type
Code
Zener Voltage Range (Note 9)
Maximum Zener
Impedance
f = 1kHz
Maximum Reverse
Leakage Current (Note 9)
VZ @ IZT
IZT
ZZT @ IZT
ZZK @ IZK
= 0.25mA
IR
@ VR
Nom (V)
Min (V)
Max (V)
mA
Ω
µA
V
MMBZ5221B
C1
2.4
2.28
2.52
20
30
1,200
100
1.0
MMBZ5222B
C2
2.5
2.38
2.63
20
30
1,200
100
1.0
MMBZ5223B
C3
2.7
2.57
2.84
20
30
1,300
75
1.0
MMBZ5225B
C5
3.0
2.85
3.15
20
30
1,600
50
1.0
MMBZ5226B
G1
3.3
3.14
3.47
20
28
1,600
25
1.0
MMBZ5227B
G2
3.6
3.42
3.78
20
24
1,700
15
1.0
MMBZ5228B
G3
3.9
3.71
4.10
20
23
1,900
10
1.0
MMBZ5229B
G4
4.3
4.09
4.52
20
22
2,000
5.0
1.0
MMBZ5230B
G5
4.7
4.47
4.94
20
19
1,900
5.0
2.0
MMBZ5231B
E1
5.1
4.85
5.36
20
17
1,600
5.0
2.0
MMBZ5232B
E2
5.6
5.32
5.88
20
11
1,600
5.0
3.0
MMBZ5233B
E3
6.0
5.70
6.30
20
7
1,600
5.0
3.5
MMBZ5234B
E4
6.2
5.89
6.51
20
7
1,000
5.0
4.0
MMBZ5235B
E5
6.8
6.46
7.14
20
5
750
3.0
5.0
MMBZ5236B
F1
7.5
7.13
7.88
20
6
500
3.0
6.0
MMBZ5237B
F2
8.2
7.79
8.61
20
8
500
3.0
6.5
MMBZ5238B
F3
8.7
8.27
9.14
20
8
600
3.0
6.5
MMBZ5239B
F4
9.1
8.65
9.56
20
10
600
3.0
7.0
MMBZ5240B
F5
10
9.50
10.50
20
17
600
3.0
8.0
MMBZ5241B
H1
11
10.45
11.55
20
22
600
2.0
8.4
MMBZ5242B
H2
12
11.40
12.60
20
30
600
1.0
9.1
MMBZ5243B
H3
13
12.35
13.65
9.5
13
600
0.5
9.9
MMBZ5244B
H4
14
13.30
14.70
9.0
15
600
0.1
10
MMBZ5245B
H5
15
14.25
15.75
8.5
16
600
0.1
11
MMBZ5246B
J1
16
15.20
16.80
7.8
17
600
0.1
12
MMBZ5248B
J3
18
17.10
18.90
7.0
21
600
0.1
14
MMBZ5250B
J5
20
19.00
21.00
6.2
25
600
0.1
15
MMBZ5251B
K1
22
20.90
23.10
5.6
29
600
0.1
17
MMBZ5252B
K2
24
22.80
25.20
5.2
33
600
0.1
18
MMBZ5254B
K4
27
25.65
28.35
5.0
41
600
0.1
21
MMBZ5255B
K5
28
26.60
29.40
4.5
44
600
0.1
21
MMBZ5256B
M1
30
28.50
31.50
4.2
49
600
0.1
23
MMBZ5257B
M2
33
31.35
34.65
3.8
58
700
0.1
25
MMBZ5258B
M3
36
34.20
37.80
3.4
70
700
0.1
27
MMBZ5259B
M4
39
37.05
40.95
3.2
80
800
0.1
30
Note: 9. Short duration pulse test used to minimize self-heating effect.
MMBZ5221B - MMBZ5259B
Document number: DS18011 Rev. 24 - 2
3 of 5
www.diodes.com
February 2018
© Diodes Incorporated
MMBZ5221B - MMBZ5259B
0
0.1
0.2
0.3
0.4
25
050 75 100 125 150
P , POWER DISSIPATION (W)
D
T , AMBIENT TEMPERATURE ( C)
Fig. 1 Power Derating Curve
A°
Note 7
0
10
20
30
40
50
0 1 2 3 4 5 6 78 9 10
I , ZENER CURRENT (mA)
Z
V , ZENER VOLTAGE (V)
Fig. 2 Typical Zener Breakdown Characteristics
Z
0
10
20
30
0
I , ZENER CURRENT (mA)
Z
V , ZENER VOLTAGE (V)
Fig. 3 Typical Zener Breakdown Characteristics
Z
10 20 30 40
T = 25°C
j
Test current IZ
10
12
18
22
27
33 36
15
39
Nominal Zener Voltage
C , TOTAL CAPACITANCE (pF)
T
10
100
1,000
10 100
1V , NOMINAL ZENER VOLTAGE (V)
Fig. 4 Typical Total Capacitance vs. Nominal Zener Voltage
Z
T = 25 °C
f = 1MHz
J
V = 1V
R
V = 2V
R
1
10
100
1,000
110 100
V , ZENER VOLTAGE (V)
Fig. 5 Typical Zener Impedance Characteristics
Z
Z , ZENER IMPEDANCE ( )
Z
Note 8
MMBZ5221B - MMBZ5259B
Document number: DS18011 Rev. 24 - 2
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www.diodes.com
February 2018
© Diodes Incorporated
MMBZ5221B - MMBZ5259B
Package Outline Dimensions
Please see http://www.diodes.com/package-outlines.html for the latest version.
SOT23
J
K1 K
L1
GAUGE PLANE
0.25
H
L
M
All 7°
A
CB
D
G
F
a
SOT23
Dim
Min
Max
Typ
A
0.37
0.51
0.40
B
1.20
1.40
1.30
C
2.30
2.50
2.40
D
0.89
1.03
0.915
F
0.45
0.60
0.535
G
1.78
2.05
1.83
H
2.80
3.00
2.90
J
0.013
0.10
0.05
K
0.890
1.00
0.975
K1
0.903
1.10
1.025
L
0.45
0.61
0.55
L1
0.25
0.55
0.40
M
0.085
0.150
0.110
a
0°
8°
--
All Dimensions in mm
Suggested Pad Layout
Please see http://www.diodes.com/package-outlines.html for the latest version.
SOT23
X
Y
Y1 C
X1
Dimensions
Value (in mm)
C
2.0
X
0.8
X1
1.35
Y
0.9
Y1
2.9
MMBZ5221B - MMBZ5259B
Document number: DS18011 Rev. 24 - 2
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February 2018
© Diodes Incorporated
MMBZ5221B - MMBZ5259B
IMPORTANT NOTICE
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INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
(AND THEIR EQUIVALENTS UNDER THE LAWS OF ANY JURISDICTION).
Diodes Incorporated and its subsidiaries reserve the right to make modifications, enhancements, improvements, corrections or other changes
without further notice to this document and any product described herein. Diodes Incorporated does not assume any liability arising out of the
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trademark rights, nor the rights of others. Any Customer or user of this document or products described herein in such applications shall assume
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website, harmless against all damages.
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Should Customers purchase or use Diodes Incorporated products for any unintended or unauthorized application, Customers shall indemnify and
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This document is written in English but may be translated into multiple languages for reference. Only the English version of this document is the
final and determinative format released by Diodes Incorporated.
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Diodes Incorporated products are specifically not authorized for use as critical components in life support devices or systems without the express
written approval of the Chief Executive Officer of Diodes Incorporated. As used herein:
A. Life support devices or systems are devices or systems which:
1. are intended to implant into the body, or
2. support or sustain life and whose failure to perform when properly used in accordance with instructions for use provided in the
labeling can be reasonably expected to result in significant injury to the user.
B. A critical component is any component in a life support device or system whose failure to perform can be reasonably expected to cause the
failure of the life support device or to affect its safety or effectiveness.
Customers represent that they have all necessary expertise in the safety and regulatory ramifications of their life support devices or systems, and
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use of Diodes Incorporated products in such safety-critical, life support devices or systems, notwithstanding any devices- or systems-related
information or support that may be provided by Diodes Incorporated. Further, Customers must fully indemnify Diodes Incorporated and its
representatives against any damages arising out of the use of Diodes Incorporated products in such safety-critical, life support devices or systems.
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