MMSZ5221BS - MMSZ5259BS
SURFACE MOUNT ZENER DIODE
Features
• Planar Die Construction
• Ultra-Small Surface Mount Package
• General Purpose
• Ideally Suited for Automated Assembly Processes
• Lead, Halogen and Antimony Free, RoHS Compliant
"Green" Device (Notes 3 and 4)
Mechanical Data
• Case: SOD-323
• Case Material: Molded Plastic. UL Flammability Classification
Rating 94V-0
• Moisture Sensitivity: Level 1 per J-STD-020D
• Terminals: Solderable per MIL-STD-202, Method 208
• Lead Free Plating (Matte Tin Finish annealed over Alloy 42
leadframe). Polarity: Cathode Band
• Marking Information: See Page 4
• Ordering Information: See Page 4
• Weight: 0.004 grams (approximate)
Top View
Maximum Ratings @TA = 25°C unless otherwise specified
Characteristic Symbol Value Unit
Forward Voltage (Note 2) @ IF = 10mA VF 0.9 V
Thermal Characteristics
Characteristic Symbol Value Unit
Power Dissipation (Note 1) PD 200 mW
Thermal Resistance, Junction to Ambient Air (Note 1) RθJA 625 °C/W
Operating and Storage Temperature Range TJ, TSTG -65 to +150 °C
Notes: 1. Part mounted on FR-4 PC board with recommended pad layout, which can be found on our website at http://www.diodes.com/datasheets/ap02001.pdf.
2. Short duration pulse test used to minimize self-heating effect.
3. No purposefully added lead. Halogen and Antimony Free.
4. Product manufactured with Data Code V9 (week 33, 2008) and newer are built with Green Molding Compound. Product manufactured prior to Date
Code V9 are built with Non-Green Molding Compound and may contain Halogens or Sb2O3 Fire Retardants.
MMSZ5221BS -MMSZ5259BS
Document number: DS31038 Rev. 12 - 2 1 of 4
www.diodes.com June 2008
© Diodes Incorporated
MMSZ5221BS -MMSZ5259BS
Document number: DS31038 Rev. 12 - 2 2 of 4
www.diodes.com June 2008
© Diodes Incorporated
MMSZ5221BS - MMSZ5259BS
Electrical Characteristics @TA = 25°C unless otherwise specified
Zener Voltage Range (Note 5) Test
Current Maximum Zener
Impedance (Note 6) Maximum Reverse
Leakage Current (Note 5)
VZ @ IZT IZT ZZT @ IZT ZZK @ IZK
= 0.25mA IR @ VR
Type
Number Marking
Code
Nom (V) Min (V) Max (V) mA Ω μA V
MMSZ5221BS C1 2.4 2.28 2.52 20 30 1200 100 1.0
MMSZ5223BS C3 2.7 2.57 2.84 20 30 1300 75 1.0
MMSZ5225BS C5 3.0 2.85 3.15 20 30 1600 50 1.0
MMSZ5226BS G1 3.3 3.14 3.47 20 28 1600 25 1.0
MMSZ5227BS G2 3.6 3.42 3.78 20 24 1700 15 1.0
MMSZ5228BS G3 3.9 3.71 4.10 20 23 1900 10 1.0
MMSZ5229BS G4 4.3 4.09 4.52 20 22 2000 5.0 1.0
MMSZ5230BS G5 4.7 4.4 7 4.94 20 19 1900 5.0 2.0
MMSZ5231BS E1 5.1 4.85 5.36 20 17 1600 5.0 2.0
MMSZ5232BS E2 5.6 5.32 5.88 20 11 1600 5.0 3.0
MMSZ5233BS E3 6.0 5.70 6.30 20 7 1600 5.0 3.5
MMSZ5234BS E4 6.2 5.89 6.51 20 7 1000 5.0 4.0
MMSZ5235BS E5 6.8 6.46 7.14 20 5 750 3.0 5.0
MMSZ5236BS F1 7.5 7.13 7.88 20 6 500 3.0 6.0
MMSZ5237BS F2 8.2 7.79 8.61 20 8 500 3.0 6.5
MMSZ5238BS F3 8.7 8.27 9.14 20 8 600 3.0 6.5
MMSZ5239BS F4 9.1 8.65 9.56 20 10 600 3.0 7.0
MMSZ5240BS F5 10 9.50 10.50 20 17 600 3.0 8.0
MMSZ5241BS H1 11 10.45 11.55 20 22 600 2.0 8.4
MMSZ5242BS H2 12 11.40 12.60 20 30 600 1.0 9.1
MMSZ5243BS H3 13 12.35 13.65 9.5 13 600 0.5 9.9
MMSZ5245BS H5 15 14.25 15.75 8.5 16 600 0.1 11
MMSZ5246BS J1 16 15.20 16.80 7.8 17 600 0.1 12
MMSZ5248BS J3 18 17.10 18.90 7.0 21 600 0.1 14
MMSZ5250BS J5 20 19.00 21.00 6.2 25 600 0.1 15
MMSZ5251BS K1 22 20.90 23.10 5.6 29 600 0.1 17
MMSZ5252BS K2 24 22.80 25.20 5.2 33 600 0.1 18
MMSZ5254BS K4 27 25.65 28.35 5.0 41 600 0.1 21
MMSZ5255BS K5 28 26.60 29.40 4.5 44 600 0.1 21
MMSZ5256BS M1 30 28.50 31.50 4.2 49 600 0.1 23
MMSZ5257BS M2 33 31.35 34.65 3.8 58 700 0.1 25
MMSZ5258BS M3 36 34.20 37.80 3.4 70 700 0.1 27
MMSZ5259BS M4 39 37.05 40.95 3.2 80 800 0.1 30
Notes: 5. Short duration pulse test used to minimize self-heating effect.
6. f = 1KHz.
MMSZ5221BS - MMSZ5259BS
0
10
20
30
40
50
01234567891
I, ZENE
0
0.1
0.2
0.3
0.4
25
050 75 100 125 150
P
,
P
O
WE
R
DISSI
P
A
T
I
O
N (W)
D
T , AMBIENT TEMPERAT URE ( C)
Fi g. 1 Power D er ated Cur v e
A
°
0
R
C
U
R
R
EN
T
(mA)
Z
V , ZENER VOLTAGE (V)
Fig . 2 Ty pi cal Zener Br eakdown Charact er istics
Z
0
10
20
30
0
I, ZENE
R
C
U
R
R
EN
T
(mA)
Z
V , ZENE R VOLTAG E ( V)
Fig. 3 Typical Zener Breakdown Characteristics
Z
10 20 30 40
T = 25°C
j
Test current I
Z
10
12
18
22
27
33 36
15
39
Nominal Zener Voltage
1
10
100
1,000
110100
C
,
T
O
T
AL
C
A
P
A
C
I
T
A
N
C
E (p
F
)
T
V , NOMINAL ZENER VOLTAGE (V)
Fig. 4 Typical Total Capacitance vs. Nominal Zener Voltage
Z
0V BIAS
f = 1MHz
1
10
100
1,000
110
V , ZENER VOLTAGE (V)
Fig. 5 Typical Zener Impedance Characteristics
Z
100
Z , ZENER IMPEDANCE ( )
Z
Ω
MMSZ5221BS -MMSZ5259BS
Document number: DS31038 Rev. 12 - 2 3 of 4
www.diodes.com June 2008
© Diodes Incorporated
MMSZ5221BS - MMSZ5259BS
Ordering Information (Note 7)
MMSZ5221BS -MMSZ5259BS
Document number: DS31038 Rev. 12 - 2 4 of 4
www.diodes.com June 2008
© Diodes Incorporated
Part Number Case Packaging
(Type Number)-7-F SOD-323 3000/Tape & Reel
* Add “-7” to the appropriate type number in Electrical Characteristics Table . Example: 6.2V Zener = MMSZ5234BS-7-F.
Notes: 7. For packaging details, go to our website at http://www.diodes.com/datasheets/ap02007.pdf.
Marking Information
XX
XX = Product Type Marking Code
(See Electrical Characteristics Table)
Package Outline Dimensions
Suggested Pad Layout
IMPORTANT NOTICE
Diodes Incorporated and its subsidiaries reserve the right to make modifications, enhancements, improvements, corrections or other changes
without further notice to any product herein. Diodes Incorporated does not assume an y liability arising out of the application or use of any product
described herein; neither does it convey any license under its patent rights, nor the rights of others. The user of products in such applications shall
assume all risks of such use and will agree to hold Diodes Incorporated and all the companies whose products are represented on our website,
harmless against all damages. LIFE SUPPORT
Diodes Incorporated products are not authorized for use as critical components in life support devices or systems without the expressed written
approval of the President of Diodes Incorporated.
SOD-323
Dim Min Max
A 0.25 0.35
B 1.20 1.40
C 2.30 2.70
H 1.60 1.80
J 0.00 0.10
K 1.0 1.1
L 0.20 0.40
M 0.10 0.15
α 0° 8°
All Dimensions in mm
K
L
MJ
C
H
BA
Z
X
C
G
Y
Dimensions Value (in mm)
Z 3.75
G 1.05
X 0.65
Y 1.35
C 2.40
