DS31037 Rev. 5 - 2 1 of 3 MMBZ5221BW - MMBZ5259BW
www.diodes.com
MMBZ5221BW - MMBZ5259BW
200mW SURFACE MOUNT ZENER DIODE
Features
·Planar Die Construction
·Ultra-Small Surface Mount Package
·General Purpose
·Ideally Suited for Automated Assembly
Processes
·Case: SOT-323, 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: See Table on Page 2
·Weight: 0.006 grams (approx.)
Mechanical Data
A
M
JL
ED
BC
H
K
G
Characteristic Symbol Value Unit
Forward Voltage @ IF = 10mA VF0.9 V
Power Dissipation (Note 1) Pd200 mW
Thermal Resistance, Junction to Ambient Air (Note 1) RqJA 625 °C/W
Operating and Storage Temperature Range Tj, TSTG -65 to +150 °C
Maximum Ratings @ TA = 25°C unless otherwise specified
SOT-323
Dim Min Max
A0.25 0.40
B1.15 1.35
C2.00 2.20
D0.65 Nominal
E0.30 0.40
G1.20 1.40
H1.80 2.20
J0.0 0.10
K0.90 1.00
L0.25 0.40
M0.10 0.18
a0°8°
All Dimensions in mm
* Add “-7” to the appropriate type number in Table 1 from Sheet 2 example: 6.2V Zener = MMBZ5234BW-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. Short duration test pulse used to minimize self-heating effect.
3. f = 1KHz.
4. For Packaging Details, go to our website at http://www.diodes.com/datasheets/ap02007.pdf.
Device Packaging Shipping
(Type Number)-7* SOT-323 3000/Tape & Reel
Ordering Information (Note 4)
DS31037 Rev. 5 - 2 2 of 3 MMBZ5221BW - MMBZ5259BW
www.diodes.com
Electrical Characteristics Table 1
@ TA = 25°C unless otherwise specified
Notes: 2. Short duration test pulse used to minimize self-heating effect.
3. f = 1KHz.
Type
Number
Marking
Code
Zener Voltage Range (Note 2) Test
Current
Maximum Zener
Impedance (Note 3)
Maximum Reverse
Leakage Current (Note 2)
VZ @ IZT IZT ZZT @ IZT ZZK @ IZK
= 0.25mA
I
R@V
R
Nom (V) Min (V) Max (V) mA WmAV
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
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
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
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
Date Code Key
XXX = Product Type Marking Code (See Table 1)
YM = Date Code Marking
Y = Year ex: N = 2002
M = Month ex: 9 = September
XXX
YM
Marking Information
DS31037 Rev. 5 - 2 3 of 3 MMBZ5221BW - MMBZ5259BW
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
f = 1MHz
V=1V
R
V=2V
R
1
10
100
110 100
P , PEAK SURGE POWER (W)
PK
PULSE WIDTH (ms)
Fi
g
. 4 Maximum Non-repetitive Sur
g
e Power
1000
0
10
20
30
40
50
01 2 3 4 5 6 7891
0
I , ZENER
C
URRENT
(
mA
)
Z
V , ZENER VOLTAGE (V)
Z
Fig. 5 Zener Breakdown Characteristics
T = 25°C
j5V6
6V8
8V2
Tes t Cu r re n t IZ
20mA
0
10
20
30
0
I , ZENER CURRENT (mA)
Z
V , ZENER VOLTAGE (V)
Z
Fi
g
. 6 Zener Breakdown Characteristics
10 20 30 40
T = 25°C
j
Test current IZ
Nominal Zener Voltage
10
12
18
22
27
33 36
15
39
1
10
100
1000
1 10 100
V , NOMINAL ZENER VOLTAGE (V)
Z
Fig. 3 Zener Voltage vs. Zener Impedence
I = 1.0mA
Z
