MMSZ5221B~MMSZ5263B
500mW, 5% Tolerance SMD Zener Diode
Small Signal Diode
VZ Tolerance Selection of ±5%
Moisture sensitivity level 1
Matte Tin(Sn) lead finish
Pb free version and RoHS compliant
Min Max Min Max
Case : Flat lead SOD-123 small outline plastic package 1.5 1.7 0.059 0.067
3.3 3.9 0.130 0.154
0.5 0.7 0.020 0.028
2.5 2.7 0.098 0.106
0.8 1.15 0.031 0.045
0.05 0.2 0.002 0.008
Package
SOD-123F
SOD-123F
Maximum Ratings
IF=10mA
Notes:1. Valid provided that electrodes are kept at ambient temperature
VBR : Voltage at IZK
IZK : Test current for voltage VBR
ZZK : Dynamic impedance at IZK
IZT : Test current for voltage VZ
VZ: Voltage at current IZT
ZZT : Dynamic impedance at IZT
IZM : Maximum steady state current
VZM : Voltage at IZM
Zener I vs. V Characteristics
V
Thermal Resistance (Junction to Ambient) (Note 1) RθJA 330 °C/W
Forward Voltage 0.9
Packing
TJ, TSTG
Units
PDmW
-65 to + 150
500
°C
Suggested PAD Layou
t
Unit (inch)
Rating at 25°C ambient temperature unless otherwise specified.
Type Number
D
E
Ordering Information Pin Configuration
Value
F
Part No.
SOD-123F
Junction and Storage Temperature Range
VF
Green compound (Halogen free) with suffix "G" on
packing code and prefix "G" on date code
Power Dissipation
Symbol
High temperature soldering guaranteed: 260°C/10s
Polarity : Indicated by cathode band
Weight : 8.85±0.5 mg
Maximum Ratings and Electrical Characteristics
Features
Mechanical Data
Terminal: Matte tin plated, lead free., solderable
per MIL-STD-202, Method 208 guaranteed
Unit (mm)
Wide zener voltage range selection : 2.4V to 56V
Dimensions
A
B
C
MMSZ52xxB RH
MMSZ52xxB RHG 3Kpcs / 7" Reel
3Kpcs / 7" Reel
Voltage
Current
IF
VF
VR
IR
VBR
IZK
VZ
IZT
VZM
IZM
Forward RegionLeakage RegionBreakdownRegion
1.22
0.048
2.36
0.093
0.91
0.036
0.165
4.19
CA
B
D
E
F
Version : C10
MMSZ5221B~MMSZ5263B
500mW, 5% Tolerance SMD Zener Diode
Small Signal Diode
Electrical Characteristics
Ta = 25°C unless otherwise noted
VF Forward Voltage = 0.9V Maximum @ IF = 10 mA for all part numbers
Marking
Code Min Nom Max
MMSZ5221B Z2V4 2.28 2.4 2.52 20 30 0.25 1200 100 1
MMSZ5222B Z2V5 2.38 2.5 2.63 20 30 0.25 1250 100 1
MMSZ5223B Z2V7 2.57 2.7 2.84 20 30 0.25 1300 75 1
MMSZ5224B Z2V8 2.66 2.8 2.94 20 30 0.25 1400 75 1
MMSZ5225B Z3V0 2.85 3.0 3.15 20 29 0.25 1600 50 1
MMSZ5226B Z3V3 3.14 3.3 3.47 20 28 0.25 1600 25 1
MMSZ5227B Z3V6 3.42 3.6 3.78 20 24 0.25 1700 15 1
MMSZ5228B Z3V9 3.71 3.9 4.10 20 23 0.25 1900 10 1
MMSZ5229B Z4V3 4.09 4.3 4.52 20 22 0.25 2000 5 1
MMSZ5230B Z4V7 4.47 4.7 4.94 20 19 0.25 1900 5 2
MMSZ5231B Z5V1 4.85 5.1 5.36 20 17 0.25 1600 5 2
MMSZ5232B Z5V6 5.32 5.6 5.88 20 11 0.25 1600 5 3
MMSZ5233B Z6V0 5.70 6.0 6.30 20 7 0.25 1600 5 3.5
MMSZ5234B Z6V2 5.89 6.2 6.51 20 7 0.25 1000 5 4
MMSZ5235B Z6V8 6.46 6.8 7.14 20 5 0.25 750 3 5
MMSZ5236B Z7V5 7.13 7.5 7.88 20 6 0.25 500 3 6
MMSZ5237B Z8V2 7.79 8.2 8.61 20 8 0.25 500 3 6.5
MMSZ5238B Z8V7 8.27 8.7 9.14 20 8 0.25 600 3 6.5
MMSZ5239B Z9V1 8.65 9.1 9.56 20 10 0.25 600 3 7
MMSZ5240B Z10V 9.50 10 10.50 20 17 0.25 600 3 8
MMSZ5241B Z11V 10.45 11 11.55 20 22 0.25 600 2 8.4
MMSZ5242B Z12V 11.40 12 12.60 20 30 0.25 600 1 9.1
MMSZ5243B Z13V 12.35 13 13.65 9.5 13 0.25 600 0.5 9.9
MMSZ5244B Z14V 13.30 14 14.70 9.0 15 0.25 600 0.1 10
MMSZ5245B Z15V 14.25 15 15.75 8.5 16 0.25 600 0.1 11
MMSZ5246B Z16V 15.20 16 16.80 7.8 17 0.25 600 0.1 12
MMSZ5247B Z17V 16.15 17 17.85 7.4 19 0.25 600 0.1 13
MMSZ5248B Z18V 17.10 18 18.90 7.0 21 0.25 600 0.1 14
MMSZ5249B Z19V 18.05 19 19.95 6.6 23 0.25 600 0.1 14
MMSZ5250B Z20V 19.00 20 21.00 6.2 25 0.25 600 0.1 15
MMSZ5251B Z22V 20.90 22 23.10 5.6 29 0.25 600 0.1 17
MMSZ5252B Z24V 22.80 24 25.20 5.2 33 0.25 600 0.1 18
MMSZ5253B Z25V 23.75 25 26.25 5.0 35 0.25 600 0.1 19
MMSZ5254B Z27V 25.65 27 28.35 4.6 41 0.25 600 0.1 21
MMSZ5255B Z28V 26.60 28 29.40 4.5 44 0.25 600 0.1 21
MMSZ5256B Z30V 28.50 30 31.50 4.2 49 0.25 600 0.1 23
MMSZ5257B Z33V 31.35 33 34.65 3.8 58 0.25 700 0.1 25
MMSZ5258B Z36V 34.20 36 37.80 3.4 70 0.25 700 0.1 27
MMSZ5259B Z39V 37.05 39 40.95 3.2 80 0.25 800 0.1 30
MMSZ5260B Z43V 40.85 43 45.15 3.0 93 0.25 900 0.1 33
MMSZ5261B Z47V 44.65 47 49.35 2.7 105 0.25 1000 0.1 36
MMSZ5262B Z51V 48.45 51 53.55 2.5 125 0.25 1100 0.1 39
MMSZ5263B Z56V 53.20 56 58.80 2.2 150 0.25 1300 0.1 43
Notes:
1. The Zener Volta
g
e
(
V
Z
)
is tested under
p
ulse condition of 1ms.
2. The device numbers listed have a standard tolerance on the nominal zener volta
g
e of ±5%.
4. 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.
ZZK @
IZK(Ω) Max
VZ @ IZT (Volt) IR @ VR(μA)
Max
IZK(mA)IZT(mA) VR(V)
3. For detailed information on price, availability and delivery of nominal zener voltages between the voltages shown and
tighter voltage tolerances, contact your nearest Taiwan semiconductor representative.
Part Number ZZT @
IZT(Ω) Max
Version : C10
MMSZ5221B~MMSZ5263B
500mW, 5% Tolerance SMD Zener Diode
Small Signal Diode
Rating and Characteristic Curves
0
0
1
10
100
0123456789101112
Zener Current (mA)
Ta=25°C
0
100
200
300
400
500
600
700
0 50 100 150 200
Power Dissipation (mW)
FIG 3 Zener Breakdown Characteristics
0.01
0.10
1.00
10.00
100.00
10 20 30 40 50 60 70 80
Zener Current (mA)
Ta=25°C
Ta=150°C
FIG 6 Effect of Zener Voltage on Impedence
1
10
100
1000
1 10 100
Dynamic Impedence (Ώ)
FIG 5 Typical Capacitance
1
10
100
1000
1 10 100
Capacitance(pF)
Bias at 50% of VZ(Nom)
1V Bias
Iz=20m
Iz=5mA
Iz=1mA
Zener Voltage (V)
FIG 2 Zener Breakdown Characteristics
Zener Voltage (V)
FIG 4 Power Dissipation vs. Ambient Temp.
Zener Voltage (V) Ambient Temperature (°C)
Zener Voltage (V)
0.01
0.1
FIG 1 Typical Forward Voltage
1
10
100
1000
0.4 0.5 0.6 0.7 0.8 0.9 1 1.1 1.2
Forward Current (mA)
Ta=25°C
Ta=25°C
Forward Voltage (V)
Ta=25°C
Version : C10
MMSZ5221B~MMSZ5263B
500mW, 5% Tolerance SMD Zener Diode
Small Signal Diode
Tape & Reel specification
12.3 ±0.20
4.00 ±0.10
2.00 ±0.05
0.22 ±0.05
8.10 ±0.20
54.4 ±0.40
13.0 ±0.20
1.75 ±0.10
3.50 ±0.05
3.94 ±0.05
1.35 ±0.10
1.75 ±0.10
178 ±1
Reel width W1
Overall tape thickness T
Tape width W
Sprocke hole pitch P0
Embossment center P1
Sprocke hole position E
Punch hole position F
Reel inner diameter D1
Feed hole width D2
Sprocket hole d
Reel outside diameter D
Carrier length B
Carrier depth C
Item Symbol Dimension(mm)
Carrier width A 3.15 ±0.10
W1
DD2
D
Direction of Feed
Top Cover Tape
Carieer Tape
A
ny Additional Label (If Required)
TSC label
T
C
dP1
P0
A
B
FW
E
Version:C10
