MMSZ5221B – MMSZ5262B
Taiwan Semiconductor
500mW, 5% Tolerance SMD Zener Diode
FEATURES
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KEY PARAMETERS
Wide zener voltage range selection: 2.4V to 51V
VZ tolerance selection of ± 5%
Moisture sensitivity level: level 1, per J-STD-020
RoHS Compliant
Halogen-free according to IEC 61249-2-21
PARAMETER
VALUE
UNIT
VZ
2.4 - 51
V
PD
500
mW
VF at IF = 10mA
0.9
V
TJ MAX
150
°C
APPLICATIONS
● Low voltage stabilizers or voltage references
● Adapters
● On-board DC/DC converter
Package
SOD-123F
Configuration
Single die
MECHANICAL DATA
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Case: SOD-123F
Molding compound meets UL 94V-0 flammability rating
Terminal: Matte tin plated leads, solderable per J-STD-002
Polarity: Indicated by cathode band
Weight: 8.85mg (approximately)
SOD-123F
ABSOLUTE MAXIMUM RATINGS (TA = 25°C unless otherwise noted)
PARAMETER
SYMBOL
VALUE
UNIT
Forward voltage @ IF = 10mA
VF
0.9
V
Power dissipation
PD
500
mW
Junction temperature range
TJ
-65 to +150
°C
Storage temperature range
TSTG
-65 to +150
°C
SYMBOL
TYP
UNIT
RӨJA
330
°C/W
THERMAL PERFORMANCE
PARAMETER
Junction-to-ambient thermal resistance
1
Version: H2007
MMSZ5221B – MMSZ5262B
Taiwan Semiconductor
ELECTRICAL SPECIFICATIONS (TA = 25°C unless otherwise noted)
PART
NUMBER
MARKING
CODE
ZENER VOLTAGE
TEST
CURRENT
IZT
mA
REGULAR
IMPEDANCE
ZZT @ IZT
ZZK @ IZK
Ω
Ω
Max
Max
TEST
CURRENT
IZK
mA
LEAKAGE
CURRENT
IR @ VR
µA
V
Max
Min
VZ @ IZT
V
Nom
MMSZ5221B
Z2V4
2.28
2.4
2.52
20
30
1200
0.25
100
1
MMSZ5225B
Z3V0
2.85
3.0
3.15
20
29
1600
0.25
50
1
MMSZ5226B
Z3V3
3.14
3.3
3.47
20
28
1600
0.25
25
1
MMSZ5227B
Z3V6
3.42
3.6
3.78
20
24
1700
0.25
15
1
MMSZ5228B
Z3V9
3.71
3.9
4.10
20
23
1900
0.25
10
1
MMSZ5229B
Z4V3
4.09
4.3
4.52
20
22
2000
0.25
5
1
MMSZ5230B
Z4V7
4.47
4.7
4.94
20
19
1900
0.25
5
2
MMSZ5231B
Z5V1
4.85
5.1
5.36
20
17
1600
0.25
5
2
MMSZ5232B
Z5V6
5.32
5.6
5.88
20
11
1600
0.25
5
3
MMSZ5234B
Z6V2
5.89
6.2
6.51
20
7
1000
0.25
5
4
MMSZ5235B
Z6V8
6.46
6.8
7.14
20
5
750
0.25
3
5
MMSZ5236B
Z7V5
7.13
7.5
7.88
20
6
500
0.25
3
6
MMSZ5237B
Z8V2
7.79
8.2
8.61
20
8
500
0.25
3
6.5
MMSZ5239B
Z9V1
8.65
9.1
9.56
20
10
600
0.25
3
7
MMSZ5240B
Z10V
9.50
10
10.50
20
17
600
0.25
3
8
MMSZ5241B
Z11V
10.45
11
11.55
20
22
600
0.25
2
8.4
MMSZ5242B
Z12V
11.40
12
12.60
20
30
600
0.25
1
9.1
MMSZ5243B
Z13V
12.35
13
13.65
9.5
13
600
0.25
0.5
9.9
MMSZ5244B
Z14V
13.30
14
14.70
9.0
15
600
0.25
0.1
10
MMSZ5245B
Z15V
14.25
15
15.75
8.5
16
600
0.25
0.1
11
MMSZ5246B
Z16V
15.20
16
16.80
7.8
17
600
0.25
0.1
12
MMSZ5248B
Z18V
17.10
18
18.90
7.0
21
600
0.25
0.1
14
MMSZ5250B
Z20V
19.00
20
21.00
6.2
25
600
0.25
0.1
15
MMSZ5251B
Z22V
20.90
22
23.10
5.6
29
600
0.25
0.1
17
MMSZ5252B
Z24V
22.80
24
25.20
5.2
33
600
0.25
0.1
18
MMSZ5254B
Z27V
25.65
27
28.35
4.6
41
600
0.25
0.1
21
MMSZ5256B
Z30V
28.50
30
31.50
4.2
49
600
0.25
0.1
23
MMSZ5257B
Z33V
31.35
33
34.65
3.8
58
700
0.25
0.1
25
MMSZ5258B
Z36V
34.20
36
37.80
3.4
70
700
0.25
0.1
27
MMSZ5259B
Z39V
37.05
39
40.95
3.2
80
800
0.25
0.1
30
MMSZ5260B
Z43V
40.85
43
45.15
3.0
93
900
0.25
0.1
33
MMSZ5261B
Z47V
44.65
47
49.35
2.7
105
1000
0.25
0.1
36
MMSZ5262B
Z51V
48.45
51
53.55
2.5
125
1100
0.25
0.1
39
Max
Notes:
1. The zener voltage (VZ) is tested under pulse condition of 30ms.
2. The device numbers listed have a standard tolerance on the normal zener voltage of ±5%.
3. For detailed information on price, availability and delivery of normal zener voltages between the voltages
shown and tighter voltage tolerances, contact your nearest Taiwan Semiconductor representative.
4. The zener impedance is derived from the 60-cycle ac voltage, which results when an ac current
having a rms value equal to 10% of the DC zener current(IZT or IZK) is superimposed to IZT or IZK.
2
Version: H2007
MMSZ5221B – MMSZ5262B
Taiwan Semiconductor
ORDERING INFORMATION
ORDERING CODE(1)(2)
PACKAGE
PACKING
MMSZ52xB RH
SOD-123F
3K / 7" Reel
MMSZ52xB RHG
SOD-123F
3K / 7" Reel
Notes:
1. "x" defines voltage from 2.4V (MMSZ5221B) to 51V (MMSZ5262B)
2. "G" means green compound (halogen-free)
3
Version: H2007
MMSZ5221B – MMSZ5262B
Taiwan Semiconductor
CHARACTERISTICS CURVES
(TA = 25°C unless otherwise noted)
Fig.1 Typical Forward Voltage
Fig.2 Zener Breakdown Characteristics
100
ZENER CURRENT (mA)
FORWARD CURRENT (mA)
1000
100
10
1
0.4
0.5
0.6
0.7
0.8
0.9
1.0
1.1
10
1
0.1
0.01
1.2
0
1
2
3
4
FORWARD VOLTAGE (V)
6
7
8
9
10 11 12
ZENER VOLTAGE (V)
Fig.3 Zener Breakdown Characteristics
Fig.4 Power Dissipation Curve
750
10
1
0.1
20
30
40
50
60
70
500
1
80
ZENER VOLTAGE (V)
4
UF1DLW
TJ=125°C
0.1
250
TJ=25°C
0.01
0
0.001 0
0.3
0.01
10
10
(A)
POWER DISSIPATION (mW)
100
ZENER CURRENT (mA)
5
Pulse width
0.4
50
100
0.5
0.6
0.7
0.8
0.9
AMBIENT TEMPERATURE (OC)
1
150
1.1
Version: H2007
1.2
MMSZ5221B – MMSZ5262B
Taiwan Semiconductor
CHARACTERISTICS CURVES
(TA = 25°C unless otherwise noted)
Fig.5 Typical Capacitance
Fig.6 Effect of Zener Voltage on Impedance
1000
100
DYNAMIC IMPEDANCE (Ohm)
CAPACITANCE (pF)
1000
1V Bias
Bias at 50% of VZ(Nom)
10
IZ=1mA
100
IZ=5mA
IZ=20mA
10
1
1
1
10
1
100
10
100
ZENER VOLTAGE (V)
ZENER VOLTAGE (V)
5
Version: H2007
MMSZ5221B – MMSZ5262B
Taiwan Semiconductor
PACKAGE OUTLINE DIMENSION
SOD-123F
SUGGEST PAD LAYOUT
6
Version: H2007
MMSZ5221B – MMSZ5262B
Taiwan Semiconductor
Notice
Specifications of the products displayed herein are subject to change without notice. TSC or anyone on its behalf,
assumes no responsibility or liability for any errors or inaccuracies.
Purchasers are solely responsible for the choice, selection, and use of TSC products and TSC assumes no liability
for application assistance or the design of Purchasers’ products.
Information contained herein is intended to provide a product description only. No license, express or implied, to
any intellectual property rights is granted by this document. Except as provided in TSC’s terms and conditions of
sale for such products, TSC assumes no liability whatsoever, and disclaims any express or implied warranty,
relating to sale and/or use of TSC products including liability or warranties relating to fitness for a particular purpose,
merchantability, or infringement of any patent, copyright, or other intellectual property right.
The products shown herein are not designed for use in medical, life-saving, or life-sustaining applications.
Customers using or selling these products for use in such applications do so at their own risk and agree to fully
indemnify TSC for any damages resulting from such improper use or sale.
7
Version: H2007
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