Features
l Planar Die construction
l 500mW Power Dissipation
l Zener Voltages from 2.4V - 39V
l Ideally Suited for Automated Assembly Processes
Mechanical Data
l Case: SOD-123, Molded Plastic
l Terminals: Solderable per MIL-STD-202, Method 208
l Approx. Weight: 0.008 grams
l Mounting Position: Any
l Storage & Operating Temperature: -55oC to +150oC
Maximum Ratings @ 25oC Unless Otherwise Specified
Zener Current IF
100
mA
Maximum Forward
Voltage VF 1.2 V
Power Dissipation
(Notes A) P(AV) 500 mWatt
Pe ak Forward Surge IFSM 4.0 Amps
NOTES:
MMSZ5221B
THRU
MMSZ5259B
500 mW
Zener Diodes
2.4 to 39 Volts
MCC
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A. Mounted on 5.0mm2(.013mm thick) land areas.
B. Measured on 8.3ms, single half sine-wave or equivalent
Current (Notes B )
square wave, duty cycle = 4 pulses per minute maximum.
INCHES MM DIM MIN MAX MIN MAX NOTE
A .141 .154 3.60 3.90
B .098 .110 2.50 2.80
C .055 .071 1.40 1.80
D .037 .053 0.95 1.35
E .019 .028 0.50 0.70
F --- .008 --- 0.20
G .016 --- 0.4 0 ---
1.50”
2.0"
1.50”
SUGGESTED SOLDER
PAD LAYOUT
A
B
E
C
H
D
F
G
SOD123
DIMENSIONS
omponents
21201 Itasca Street Chatsworth
!"#
$% !"#
H --- .005 --- 0.12
MAX
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NOTE:
1. T olerance a nd T ype Number Designation. The type numbers listed have a standard tolera nce on the nominal zener voltage of ±5%.
2. Specials Available Include:
A. Nominal zener voltages between the voltages shown and tighter voltage tolera nces.
B. Matched sets.
3. Zener Voltage (VZ) Measurement. Guara ntees the zener voltage when mea sured at 90 seconds while maintaining the lead temperature (TL) at 30OC, from the diode body.
4.Zener Impedance (ZZ) Derivation. 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 on IZT or IZK.
5.Surge Current (IR) Non-Repetitive. The rating listed in the electrical chara cteristics ta ble is maximum peak, non-repetitive, reverse surge current of 1/2 square wave or equivalent sine
wave pulse of 1/120 second duration superi mposed on the test current, IZT, per JEDEC registration; however , a ctual device ca pability is a s described in Figure 5.
MMSZ5221B thru MMSZ5259B
MCC
Electrical Characteristics @ 25oC Unless Otherwise Specified
NORMAL
ZENER
VOLTAGE
Vz@ Izt
TEST
CURRENT Izt
MAXIMUM ZENER
IMPEDANCE
‘B’ SUFFIX ONLY
Zzt @ Izt Zzk @ Izk=0.25mA
MAXIMUM REVERSE
LEAKAGE CURRENT
Ir @ Vr
MAXIMUM ZENER
VOLTAGE TEMP
COEFFICIENT ‘B’
SUFFIX ONLY
MCC PART
NUMBER
Marking
VOLTS mA OHMS OHMS uA VOLTS %/oC
MMSZ5221B C1 2.4 20 30 1200 100 1.0 -0.085
MMSZ5222B C2 2.5 20 30 1250 100 1.0 -0.085
MMSZ5223B C3 2.7 20 30 1300 75 1.0 -0.080
MMSZ5225B C5 3.0 20 29 1600 50 1.0 -0.075
MMSZ5226B D1 3.3 20 28 1600 25 1.0 -0.070
MMSZ5227B D2 3.6 20 24 1700 15 1.0 -0.065
MMSZ5228B D3 3.9 20 23 1900 10 1.0 -0.060
MMSZ5229B D4 4.3 20 22 2000 5.0 1.0 ±0.055
MMSZ5230B D5 4.7 20 19 1900 5.0 2.0 ±0.030
MMSZ5231B E1 5.1 20 17 1600 5.0 2.0 ±0.030
MMSZ5232B E2 5.6 20 11 1600 5.0 3.0 +0.038
MMSZ5234B E4 6.2 20 7.0 1000 5.0 4.0 +0.045
MMSZ5235B E5 6.8 20 5.0 750 3.0 5.0 +0.050
MMSZ5236B F1 7.5 20 6.0 500 3.0 6.0 +0.058
MMSZ5237B F2 8.2 20 8.0 500 3.0 6.5 +0.062
MMSZ5239B F4 9.1 20 10 600 3.0 7.0 +0.068
MMSZ5240B F5 10 20 17 600 3.0 8.0 +0.075
MMSZ5241B H1 11 20 22 600 2.0 8.4 +0.076
MMSZ5242B H2 12 20 30 600 1.0 9.1 +0.077
MMSZ5243B H3 13 9.5 13 600 0.5 9.9 +0.079
MMSZ5245B H5 15 8.5 16 600 0.1 11 +0.082
MMSZ5246B J1 16 7.8 17 600 0.1 12 +0.083
MMSZ5248B J3 18 7.0 21 600 0.1 14 +0.085
MMSZ5250B J5 20 6.2 25 600 0.1 15 +0.086
MMSZ5251B K1 22 5.6 29 600 0.1 17 +0.087
MMSZ5252B K2 24 5.2 33 600 0.1 18 +0.088
MMSZ5254B K4 27 4.6 41 600 0.1 21 +0.090
MMSZ5255B K5 28 4.5 44 600 0.1 21 +0.091
MMSZ5256B M1 30 4.2 49 600 0.1 23 +0.091
MMSZ5257B M2 33 3.8 58 700 0.1 25 +0.092
MMSZ5258B M3 36 3.4 70 700 0.1 27 +0.093
MMSZ5259B M4 39 3.2 80 800 0.1 30 +0.094
MMSZ5221B thru MMSZ5259B
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MCC
TYPICAL REVERSE CURRENT
TEMPERATURE COEFFICIENT,mV / C)
o
NOMINAL ZENER VOLTAGE, Volts
-1
0
1
2
3
4
5
6
7
8
12111098765432
-2
-3
STEADY STATE POWER DERATING
EFFECT OF ZENER VOLTAGE ON ZENER IMPEDANCE
100101
1000
100
10
1
IZ=1mA
5mA
20 mA
DYNAMIC IMPEDANCE, W
NORMAL ZENER VOLTAGE, Volts
T
J=25 C
O
I
Z(AC)=0.1
I
F=1 kHZ
Z(DC)
FORWARD CURRENT,mA
TYPICAL FORWARD VOLTAGE
FORWARD VOLTAGE, Volts
1.21.11.00.90.80.70.60.50.4
1000
100
10
1
75 C
O
5C
O
25 C
O
150 C
O
TYPICAL CAPACITANCE
100
1000
100
10
1101
BIAS AT
50% OF VZNOM
0VBIAS
1VBIAS
CAPACITANCE, pF
NOMINAL ZENER VOLTAGE, Volts
T =25 C
A
o
100
10
1
NOMINAL ZENER VOLTAGE, Volts
TEMPERATURE COEFFICIENT,mV / C)
o
10 100
TEMPERATURE ( C)
o
POWER DISSIPATION, Watts
STEADY STATE POWER DERATING
1.2
1.0
0.8
0.6
0.4
0.2
0150125100755025
PDV.S.TA
155
MMSZ5221B thru MMSZ5259B MCC
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ZENER VOLTAGE V.S. ZENER CURRENT
TYPICAL LEAKGE CURRENT
90
1000
100
10
1
0.1
0.01
0.001
0.0001
0.00001 80706050403020100
LEAKAGE CURRENT ( A)m
NOMINAL ZENER VOLTAGE, Vlots
+150 C
O
+25 C
O
-55 C
O
12
100
10
1
0.1
0.01 1086420
ZENER CURRENT,mA
ZENER VOLTAGE, Volts
T =25 C
A
o
100
10
1
0.1
0.01 10 30 50 70 90
T =25 C
A
o
ZENER VOLTAGE, Volts
ZENER VOLTAGE V.S. ZENER CURRENT
ZENER CURRENT,mA
