DS18011 Rev. 7 - 2 1 of 3 MMBZ5221B - MMBZ5259B
www.diodes.com
MMBZ5221B - MMBZ5259B
350mW SURFACE MOUNT ZENER DIODE
·Planar Die Construction
·350mW Power Dissipation on FR-4 PCB
·General Purpose, Medium Current
·Ideally Suited for Automated Assembly
Processes
Features
Maximum Ratings @ TA = 25°C unless otherwise specified
Characteristic Symbol Value Unit
Forward Voltage @ IF = 10mA VF0.9 V
Power Dissipation (Note 1) Pd350 mW
Thermal Resistance, Junction to Ambient Air (Note 1) RqJA 357 °C/W
Operating and Storage Temperature Range Tj, TSTG -65 to +150 °C
·Case: SOT-23, Molded Plastic
·Case Material - UL Flammability Rating
Classification 94V-0
·Moisture sensitivity: Level 1 per J-STD-020A
·Terminals: Solderable per MIL-STD-202,
Method 208
·Polarity: See Diagram
·Marking: Marking Code (See Table on Page 2)
·Weight: 0.008 grams (approx.)
Mechanical Data
A
E
JL
M
BC
H
G
D
K
SOT-23
Dim Min Max
A0.37 0.51
B1.20 1.40
C2.30 2.50
D0.89 1.03
E0.45 0.60
G1.78 2.05
H2.80 3.00
J0.013 0.10
K0.903 1.10
L0.45 0.61
M0.085 0.180
a0°8°
All Dimensions in mm
* Add “-7” to the appropriate type number in Table, Sheet 2 example: 6.2V Zener = MMBZ5234B-7.
Notes: 1. Mounted on FR4 PC Board with recommended pad layout which can be found on our website
at http://www.diodes.com/datasheets/ap02001.pdf.
2. For Packaging Details, go to our website at http://www.diodes.com/datasheets/ap02007.pdf.
Device Packaging Shipping
(Type Number)-7* SOT-23 3000/Tape & Reel
(Note 2)
Ordering Information
DS18011 Rev. 7 - 2 2 of 3 MMBZ5221B - MMBZ5259B
www.diodes.com
Type
Number
Type
Code
Zener Voltage Range (Note 3) Maximum Zener
Impedance (Note 4)
Maximum Reverse
Leakage Current (Note 3)
VZ @ IZT IZT ZZT @ IZT ZZK @ IZK
= 0.25mA I
R@V
R
Nom (V) Min (V) Max (V) mA WmAV
MMBZ5221B KC1 2.4 2.28 2.52 20 30 1200 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 KG5/8E 4.7 4.4 7 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 5.70 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 KF1/8L 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
MMBZ5240B KF5 10 9.50 10.50 20 17 600 3.0 8.0
MMBZ5241B KH1 11 10.45 11.55 20 22 600 2.0 8.4
MMBZ5242B KH2/8S 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 17.10 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
Electrical Characteristics @ TA = 25°C unless otherwise specified
Notes: 3. Short duration test pulse used to minimize self-heating effect.
4. f = 1KHz.
Date Code Key
XXX = Product Type Marking Code
YM = Date Code Marking
Y = Year ex: N = 2002
M = Month ex: 9 = September
XXX
YM
Marking Information
Month Jan Feb March Apr May Jun Jul Aug Sep Oct Nov Dec
Code 1234567
89 OND
Year 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009
Code JKLMNPR
ST U VW
DS18011 Rev. 7 - 2 3 of 3 MMBZ5221B - MMBZ5259B
www.diodes.com
0
0.1
0.2
0.3
0.4
25
0
50 75 100 125
150
P,P
O
WER DISSIPATI
O
N(W)
D
T , AMBIENT TEMPERATURE (°C)
A
Fig. 1 Power Dissipation vs Ambient Temperature
C , TOTAL CAPACITANCE (pF)
T
10
100
1000
10 100
1
V , NOMINAL ZENER VOLTAGE (V)
Z
Fig. 2 Total Capacitance vs Nominal Zener Voltage
T= 25 °C
j
V = 1V
R
V = 2V
R
1
10
100
110 100
P , PEAK SURGE P
O
WER (W)
PK
PULSE WIDTH (ms)
Fig. 4 Maximum Non-repetitive Surge Power
1000
1
10
100
1000
1 10 100
V , NOMINAL ZENER VOLTAGE (V)
Z
Fig. 3 Zener Voltage vs. Zener Impedence
I = 1.0mA
Z
0
10
20
30
0
I , ZENER CURRENT (mA)
Z
V , ZENER VOLTAGE (V)
Z
Fig. 6 Zener Breakdown Characteristics
10 20 30 40
T=25°C
j
Test current IZ
10
12
18
22
27
33 36
15
39
Nominal Zener Voltage
0
10
20
30
40
50
01 2 3 4 5 6 78910
I,ZENER
C
URRENT
(
mA
)
Z
V , ZENER VOLTAGE (V)
Z
Fig. 5 Zener Breakdown Characteristics
T = 25°C
j5V6
6V8
8V2
Test Current IZ
20mA
