Features
• Small Surface Mount Package
• Ideally Suited for Automated Assembly Processes
• Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
• Halogen and Antimony Free. “Green” Device (Note 3)
• Qualified to AEC-Q101 Standards for High Reliability
Top View Device Schematic
MMBZ5221BW - MMBZ5259BW
200mW SURFACE MOUNT ZENER DIODE
Mechanical Data
• Case: SOT323
• Case Material: Molded Plastic, "Green" Molding Compound.
UL Flammability Classification Rating 94V-0
• Moisture Sensitivity: Level 1 per J-STD-020D
• Terminals: Matte Tin Finish annealed over Alloy 42 leadframe
(Lead Free Plating). Solderable per MIL-STD-202, Method 208
• Polarity: See Diagram
• Weight: 0.006 grams (approximate)
e3
Ordering Information (Note 4)
Device Packaging Shipping
(Type Number)-7-F* SOT323 3000/Tape & Reel
* Add “-7-F” to the appropriate type number in Electrical Characteristics Table from Page 2. Example: 6.2V Zener = MMBZ5234BW-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/quality/lead_free.html for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green"
and Lead-free.
4. For packaging details, go to our website at http://www.diodes.com/products/packages.html.
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.
Marking Information (Note 5)
Date Code Key
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
Note: 5. Product manufactured with date code 0627 (week 27, 2006) and newer are built with Green Molding Compound. Product manufactured prior to date
code 0627 are built with Non-Green Molding Compound and may contain Halogens or Sb2O3 Fire Retardants.
Year 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018
Code U V W X Y Z A B C D E F
xxx
YM
xxx = Product Type Marking Code
(See Electrical Characteristics Table)
YM = Date Code Marking
Y = Year (ex: B = 2014)
M = Month (ex: 9 = September)
MMBZ5221BW - MMBZ5259BW
Document number: DS31037 Rev. 14 - 2
1 of 5
www.diodes.com
February 2014
© Diodes Incorporated
MMBZ5221BW - MMBZ5259BW
Maximum Ratings (@T
= +25°C, unless otherwise specified.)
A
Characteristic Symbol Value Unit
Forward Voltage @ IF = 10mA VF
0.9 V
Thermal Characteristics
Characteristic Symbol Value Unit
Power Dissipation (Note 6)
Thermal Resistance, Junction to Ambient Air (Note 6)
Operating and Storage Temperature Range
Notes: 6. Mounted on FR4 PC Board with recommended pad layout which can be found on our website at http://www.diodes.com/datasheets/ap02001.pdf.
PD
R
T
J, TSTG
JA
Electrical Characteristics (@T
Zener Voltage Range (Note 7) Test Current
Type
Number
Marking
Code
= +25°C, unless otherwise specified.)
A
Maximum Zener Impedance
VZ @ IZT IZT Z
ZT @ IZT
(Note 8)
Nom (V) Min (V) Max (V) mA
MMBZ5221BW KC1 2.4 2.28 2.52 20 30 1200 100 1.0
MMBZ5223BW KC3 2.7 2.57 2.84 20 30 1300 75 1.0
MMBZ5225BW KC5 3.0 2.85 3.15 20 30 1600 50 1.0
MMBZ5226BW KG1 3.3 3.14 3.47 20 28 1600 25 1.0
MMBZ5227BW KG2 3.6 3.42 3.78 20 24 1700 15 1.0
MMBZ5228BW KG3 3.9 3.71 4.10 20 23 1900 10 1.0
MMBZ5229BW KG4 4.3 4.09 4.52 20 22 2000 5.0 1.0
MMBZ5230BW KG5 4.7 4.47 4.94 20 19 1900 5.0 2.0
MMBZ5231BW KE1 5.1 4.85 5.36 20 17 1600 5.0 2.0
MMBZ5232BW KE2 5.6 5.32 5.88 20 11 1600 5.0 3.0
MMBZ5233BW KE3 6 5.70 6.30 20 7.0 1600 5.0 3.5
MMBZ5234BW KE4 6.2 5.89 6.51 20 7.0 1000 5.0 4.0
MMBZ5235BW KE5 6.8 6.46 7.14 20 5.0 750 3.0 5.0
MMBZ5236BW KF1 7.5 7.13 7.88 20 6.0 500 3.0 6.0
MMBZ5237BW KF2 8.2 7.79 8.61 20 8.0 500 3.0 6.5
MMBZ5238BW KF3
8.7 8.27 9.14 20 8 600 3 6.5
MMBZ5239BW KF4 9.1 8.65 9.56 20 10 600 3.0 7.0
MMBZ5240BW KF5 10 9.50 10.50 20 17 600 3.0 8.0
MMBZ5241BW KH1 11 10.45 11.55 20 22 600 2.0 8.4
MMBZ5242BW KH2 12 11.40 12.60 20 30 600 1.0 9.1
MMBZ5243BW KH3 13 12.35 13.65 9.5 13 600 0.5 9.9
MMBZ5245BW KH5 15 14.25 15.75 8.5 16 600 0.1 11
MMBZ5246BW KJ1 16 15.20 16.80 7.8 17 600 0.1 12
MMBZ5248BW KJ3 18 17.10 18.90 7.0 21 600 0.1 14
MMBZ5250BW KJ5 20 19.00 21.00 6.2 25 600 0.1 15
MMBZ5251BW KK1 22 20.90 23.10 5.6 29 600 0.1 17
MMBZ5252BW KK2 24 22.80 25.20 5.2 33 600 0.1 18
MMBZ5254BW KK4 27 25.65 28.35 5.0 41 600 0.1 21
MMBZ5255BW KK5 28 26.60 29.40 4.5 44 600 0.1 21
MMBZ5256BW KM1 30 28.50 31.50 4.2 49 600 0.1 23
MMBZ5257BW KM2 33 31.35 34.65 3.8 58 700 0.1 25
MMBZ5258BW KM3 36 34.20 37.80 3.4 70 700 0.1 27
MMBZ5259BW KM4 39 37.05 40.95 3.2 80 800 0.1 30
Notes: 7. Short duration pulse test used to minimize self-heating effect.
MMBZ5221BW - MMBZ5259BW
Document number: DS31037 Rev. 14 - 2
8. f = 1KHz.
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www.diodes.com
200 mW
625
-65 to +150
Leakage Current (Note 7)
ZZK @ I
ZK
= 0.25mA
Ω
°C/W
°C
Maximum Reverse
IR @ VR
μA
V
February 2014
© Diodes Incorporated