Nov. 2008 Release, Revision D
Page 1
TAK CHEONG ®
SEMICONDUCTOR
500mW SOD-123 SURFACE MOUNT
Flat Lead Surface Mount Plastic Package
Zener Voltage Regulators
Green Product
Absolute Ma ximum Rati ng s TA = 25°C unless otherwise noted
Symbol Parameter Value Units
PD Power Dissipation 500 mW
TSTG Storage Temperature Range -65 to +150 °C
TOPR Operating Temperature Range -65 to +150 °C
These ratings are limiting values above which the serviceability of the diode may be impaired.
Specification Features:
Wide Zener Voltage Range Selec t ion, 3.0V to 75V
VZ Tolerance Selection of ±5%
Flat Lead SOD-123 Plastic Package
Surface Device Type Mounting
RoHS Compliant
Green EMC
Matte Tin(Sn) Lead Finish
Band Indicates Cathode
Electrical Characteristics TA = 25°C unless otherwise noted
VZ @ IZT
(Volts)
Device
Type Device
Marking Min Nom Max
IZT
(mA)
ZZT @ IZT
(Ω)
Max
ZZK @ IZK = 0.25mA
(Ω)
Max
IR @ VR
(μA)
Max
VR
(Volts)
MMSZ5221BW Z2V4 2.28 2.4 2.52 20 30 1200 100 1
MMSZ5222BW Z2V5 2.38 2.5 2.63 20 30 1250 100 1
MMSZ5223BW Z2V7 2.57 2.7 2.84 20 30 1300 75 1
MMSZ5224BW Z2V8 2.66 2.8 2.94 20 30 1400 75 1
MMSZ5225BW Z3V0 2.85 3.0 3.15 20 29 1600 50 1
MMSZ5226BW Z3V3 3.14 3.3 3.47 20 28 1600 25 1
MMSZ5227BW Z3V6 3.42 3.6 3.78 20 24 1700 15 1
MMSZ5228BW Z3V9 3.71 3.9 4.10 20 23 1900 10 1
MMSZ5229BW Z4V3 4.09 4.3 4.52 20 22 2000 5 1
MMSZ5230BW Z4V7 4.47 4.7 4.94 20 19 1900 5 2
MMSZ5231BW Z5V1 4.85 5.1 5.36 20 17 1600 5 2
MMSZ5232BW Z5V6 5.32 5.6 5.88 20 11 1600 5 3
MMSZ5233BW Z6V0 5.70 6.0 6.30 20 7 1600 5 3.5
MMSZ5234BW Z6V2 5.89 6.2 6.51 20 7 1000 5 4
MMSZ5235BW Z6V8 6.46 6.8 7.14 20 5 750 3 5
MMSZ5236BW Z7V5 7.13 7.5 7.88 20 6 500 3 6
MMSZ5237BW Z8V2 7.79 8.2 8.61 20 8 500 3 6.5
MMSZ5238BW Z8V7 8.27 8.7 9.14 20 8 600 3 6.5
MMSZ5239BW Z9V1 8.65 9.1 9.56 20 10 600 3 7
MMSZ5240BW Z10V 9.50 10 10.50 20 17 600 3 8
MMSZ5241BW Z11V 10.45 11 11.55 20 22 600 2 8.4
MMSZ5242BW Z12V 11.40 12 12.60 20 30 600 1 9.1
MMSZ5243BW Z13V 12.35 13 13.65 9.5 13 600 0.5 9.9
ELECTRICAL SYMBOL
MMSZ5221BW through MMSZ5267BW
Cathode
Anode
SOD-12 3 Flat Lead
Nov. 2008 Release, Revision D
Page 2
TAK CHEONG ®
SEMICONDUCTOR
Electrical Characteristics TA = 25°C unless otherwise noted
VZ @ IZT
(Volts)
Device
Type Device
Marking Min Nom Max
IZT
(mA)
ZZT @ IZT
(Ω)
Max
ZZK @ IZK = 0.25mA
(Ω)
Max
IR @ VR
(μA)
Max
VR
(Volts)
MMSZ5244BW Z14V 13.30 14 14.70 9 15 600 0.1 10
MMSZ5245BW Z15V 14.25 15 15.75 8.5 16 600 0.1 11
MMSZ5246BW Z16V 15.20 16 16.80 7.8 17 600 0.1 12
MMSZ5247BW Z17V 16.15 17 17.85 7.4 19 600 0.1 13
MMSZ5248BW Z18V 17.10 18 18.90 7 21 600 0.1 14
MMSZ5249BW Z19V 18.05 19 19.95 6.6 23 600 0.1 14
MMSZ5250BW Z20V 19.00 20 21.00 6.2 25 600 0.1 15
MMSZ5251BW Z22V 20.90 22 23.10 5.6 29 600 0.1 17
MMSZ5252BW Z24V 22.80 24 25.20 5.2 33 600 0.1 18
MMSZ5253BW Z25V 23.75 25 26.25 5 35 600 0.1 19
MMSZ5254BW Z27V 25.65 27 28.35 4.6 41 600 0.1 21
MMSZ5255BW Z28V 26.60 28 29.40 4.5 44 600 0.1 21
MMSZ5256BW Z30V 28.50 30 31.50 4.2 49 600 0.1 23
MMSZ5257BW Z33V 31.35 33 34.65 3.8 58 700 0.1 25
MMSZ5258BW Z36V 34.20 36 37.80 3.4 70 700 0.1 27
MMSZ5259BW Z39V 37.05 39 40.95 3.2 80 800 0.1 30
MMSZ5260BW Z43V 40.85 43 45.15 3 93 900 0.1 33
MMSZ5261BW Z47V 44.65 47 49.35 2.7 105 1000 0.1 36
MMSZ5262BW Z51V 48.45 51 53.55 2.5 125 1100 0.1 39
MMSZ5263BW Z56V 53.20 56 58.80 2.2 150 1300 0.1 43
MMSZ5264BW Z60V 57.00 60 63.00 2.1 170 1400 0.1 46
MMSZ5265BW Z62V 58.90 62 65.10 2.0 185 1400 0.1 47
MMSZ5266BW Z68V 64.60 68 71.40 1.8 230 1600 0.1 52
MMSZ5267BW Z75V 71.25 75 78.75 1.7 270 1700 0.1 56
VF Forward Voltage = 900mV Maximum @ IF = 10 mA for all types
Notes:
1. The zener voltage (VZ) is tested under pulse condition of 1mS.
2. The device numbers listed have a standard tolerance on the nominal zener voltage of ±5%.
3. The zener impedance is derived from the 60-cycle ac voltage, which results when an ac current having an rms value equal to
10% of the dc zener current (IZT or IZK) is superimposed to IZT or IZK.
4. For detailed information on price, availability and delivery of nominal zener voltages between the voltages sho wn and tighter
voltage tolerances, contact your nearest Tak Cheong Electronics representative.
Nov. 2008 Release, Revision D
Page 3
TAK CHEONG ®
SEMICONDUCTOR
RATI NG AND CHARACTERISTIC CU RVES
Fig.1 TYPICAL FORWARD VOLTAGE Fig.2 EFFECT OF ZENER VOLTAGE ON ZENER IMPEDANCE
Fig.4 TYPICA L CAPACITAN CE
Fig.5 ZENER BREAKDOWN CHARACTERISTICS
Fig.6 ZENER BREAKDOWN CHARACTERISTICS
0
100
200
300
400
500
600
0 25 50 75 100 125 150 175 200
TEMPERATURE [℃]
POW ER P AS S I P ATI O N, mW
Fig.3 POWER DISSIPATION VS. AMBIENT TEMP.
Nov. 2008 Release, Revision D
Page 4
TAK CHEONG ®
SEMICONDUCTOR
Flat Lead SOD-123 Package Outline
Note: Dimensions are exclusive of Burrs, Mold Flash & Tie Bar extrusions.
Fig.7 TYPICAL LEAKGE CURRENT
Number: DB-100
April 14, 2 008 / A
DISCLAIMER NOTICE
TAK CHEONG ®
NOTICE
The information presented in this document is for reference only. Tak Cheong reserves the right to make
changes without notice for the specification of the products displayed herein.
The product listed herein is designed to be used with ordinary electronic equipment or devices, and not
designed to be used with equipment or devices which require high level of reliability and the malfunctio n of with
would directly endanger human life (such as medical instruments, transportation equipment, aerospace
machinery, nuclear-reactor controllers, fuel controllers and other safety devices), Tak Cheong Semiconductor
Co., Ltd., or anyone on its behalf, assumes no responsibility or liability for any damagers resulting from such
improper use of sale.
This publication supersedes & replaces all information re viously supplied. For additio nal information , please visit
our website http://www.takcheong.com, o r consu lt your ne ares t Tak Cheong’s sales offic e for further assis t anc e.
