BL Galaxy Electrical Production specification
350mW Surface Mount Zener Diode MMBZ5221B-5259B
Document number: BL/SSZDC064 www.galaxycn.com
Rev.A 1
FEATURES
z Planar Die Construction.
z 350mw Power Dissipation.
z General purpose, medium current.
z Ideally Suited For Automated Assembly Prcesses.
APPLICATIONS
z 350Mw Surface mount zener diode
ORDERING INFORMATION
Type No. Marking Package Code
MMBZ5221B-MMBZ5259B See Table on page2 SOT-23
MAXIMUM RATING @ Ta=25℃ unless otherwise specified
Characteristic Symbol Value Unit
Forward Valtage@IF=10mA VF0.9 V
Power Dissipation Pd350 mW
Thermal Resistance, Junction to Ambient Air RθjA 357 ℃/W
Operating and Storage Temperature Range Tj，Tstg -65 to+150 ℃
Notes: 1. Valid provided that device terminals are kept at ambient temperature.
2. Tested with pulses, TP≤1.0ms.
Pb
Lead-free
BL Galaxy Electrical Production specification
350mW Surface Mount Zener Diode MMBZ5221B-5259B
Document number: BL/SSZDC064 www.galaxycn.com
Rev.A 2
ELECTRICAL CHARACTERISTICS @ Ta=25℃ unless otherwise specified
Zerner Voltage Range Maximum Zener Impedance
Maximum Reverse
Leakage Current
VZ@IZT IZT ZZT@IZT ZZK@IZK=0.25mA IRVR
Type Number
Marking
Code
Nom(V) Min(V) Max(V) (mA) (Ω) (μA) (V)
MMBZ5221B KC1 2.4 2.28 2.52 20 30 1200 100 1.0
MMBZ5222B KC2 2.5 2.38 2.63 20 30 1250 100 1.0
MMBZ5223B KC3 2.7 2.57 2.84 20 30 1300 75 1.0
MMBZ5225B KC5 3.0 2.85 3.15 20 30 1600 50 1.0
MMBZ5226B KG1 3.3 3.14 3.47 20 28 1600 25 1.0
MMBZ5227B KG2 3.6 3.42 3.78 20 24 1700 15 1.0
MMBZ5228B KG3 3.9 3.71 4.10 20 23 1900 10 1.0
MMBZ5229B KG4 4.3 4.09 4.52 20 22 2000 5.0 1.0
MMBZ5230B KG5 4.7 4.47 4.94 20 19 1900 5.0 2.0
MMBZ5231B KE1 5.1 4.85 5.36 20 17 1600 5.0 2.0
MMBZ5232B KE2 5.6 5.32 5.88 20 11 1600 5.0 3.0
MMBZ5233B KE3 6.0 5.7 6.30 20 7 1600 5.0 3.5
MMBZ5234B KE4 6.2 5.89 6.51 20 7 1000 5.0 4.0
MMBZ5235B KE5 6.8 6.46 7.14 20 5 750 3.0 5.0
MMBZ5236B KF1 7.5 7.13 7.88 20 6 500 3.0 6.0
MMBZ5237B KF2 8.2 7.79 8.61 20 8 500 3.0 6.5
MMBZ5238B KF3 8.7 8.27 9.14 20 8 600 3.0 6.5
MMBZ5239B KF4 9.1 8.65 9.56 20 10 600 3.0 7.0
BL Galaxy Electrical Production specification
350mW Surface Mount Zener Diode MMBZ5221B-5259B
Document number: BL/SSZDC064 www.galaxycn.com
Rev.A 3
Zerner Voltage Range Maximum Zener Impedance
Maximum Reverse
Leakage Current
VZ@IZT IZT ZZT@IZT ZZK@IZK=0.25mA IRVR
Type Number
Marking
Code
Nom(V) Min(V) Max(V) (mA) (Ω) (μA) (V)
MMBZ5240B KF5 10 9.5 10.50 20 17 600 3.0 8.0
MMBZ5241B KH1 11 10.45 11.55 20 22 600 2.0 8.4
MMBZ5242B KH2 12 11.40 12.60 20 30 600 1.0 9.1
MMBZ5243B KH3 13 12.35 13.65 9.5 13 600 0.5 9.9
MMBZ5245B KH5 15 14.25 15.75 8.5 16 600 0.1 11
MMBZ5246B KJ1 16 15.20 16.80 7.8 17 600 0.1 12
MMBZ5248B KJ3 18 17.1 18.90 7.0 21 600 0.1 14
MMBZ5250B KJ5 20 19.00 21.00 6.2 25 600 0.1 15
MMBZ5251B KK1 22 20.90 23.10 5.6 29 600 0.1 17
MMBZ5252B KK2 24 22.80 25.20 5.2 33 600 0.1 18
MMBZ5254B KK4 27 25.65 28.35 5.0 41 600 0.1 21
MMBZ5255B KK5 28 26.60 29.40 4.5 44 600 0.1 21
MMBZ5256B KM1 30 28.50 31.50 4.2 49 600 0.1 23
MMBZ5257B KM2 33 31.35 34.65 3.8 58 700 0.1 25
MMBZ5258B KM3 36 34.20 37.80 3.4 70 700 0.1 27
MMBZ5259B KM4 39 37.05 40.95 3.2 80 800 0.1 30
BL Galaxy Electrical Production specification
350mW Surface Mount Zener Diode MMBZ5221B-5259B
Document number: BL/SSZDC064 www.galaxycn.com
Rev.A 4
TYPICAL CHARACTERISTICS @ Ta=25℃ unless otherwise specified
BL Galaxy Electrical Production specification
350mW Surface Mount Zener Diode MMBZ5221B-5259B
Document number: BL/SSZDC064 www.galaxycn.com
Rev.A 5
PACKAGE OUTLINE
Plastic surface mounted package SOT-23
SOT-23
Dim Min Max
A 2.85 2.95
B 1.25 1.35
C 1.0Typical
D 0.37 0.43
E 0.35 0.48
G 1.85 1.95
H 0.02 0.1
J 0.1Typical
K 2.35 2.45
All Dimensions in mm
SOLDERING FOOTPRINT
Unit : mm
G
K
H
J
E
D
C
B
A
PACKAGE INFORMATION
Device Package Shipping
MMBZ5221B-5259B SOT-23 3000/Tape&Reel