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: -55
o
C to +150
o
C
Maximum Ratings @ 25
o
C Unless Otherwise Specified
Zener Current I
F
100 mA
Maximum Forward
Voltage
V
F
1.2 V
Power Dissipation
(Notes A)
P
(AV)
500 mWatt
Pe ak Forward Surge I
FSM
4.0 Amps
NOTES:
MMSZ5221B
THRU
MMSZ5259B
500 mW
Zener Diodes
2.4 to 39 Volts
M C C
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.com
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 --- 0.40 ---
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. Tolerance and Type Number Designation. The type numbers listed have a standard tolerance on the nominal zener voltage of 5%.
2. Specials Available Include:
A. Nominal zener voltages between the voltages shown and tighter voltage tolerances.
B. Matched sets.
3. Zener Voltage (V
Z
) Measurement. Guarantees the zener voltage when measured at 90 seconds while maintaining the lead temperature (T
L
) at 30
O
C, from the diode body.
4. Zener Impedance (Z
Z
) 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 (I
ZT
or I
ZK
) is superimposed on I
ZT
or I
ZK
.
5. Surge Current (I
R
) Non-Repetitive. The rating listed in the electrical characteristics table is maximum peak, non-repetitive, reverse surge current of 1/2 square wave or equivalent sine
wave pulse of 1/120 second duration superimposed on the test current, I
ZT
, per JEDEC registration; however, actual device capability is as described in Figure 5.
MMSZ5221B thru MMSZ5259B
M C C
Electrical Characteristics @ 25
o
C 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
%/
o
C
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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M C C
TYPICAL REVERSE CURRENT
TEMPERA
TURE
COEFFICIENT
,mV
/
C
)
o
NOMINAL ZENER VOLTAGE, Volts
-1
0
1
2
3
4
5
6
7
8
12
11
10
9
8
7
6
5
4
3
2
-2
-3
STEADY STATE POWER DERATING
EFFECT OF ZENER VOLTAGE ON ZENER IMPEDANCE
100
10
1
1000
100
10
1
IZ = 1 mA
5 mA
20 mA
DYNAMIC
I
MPEDANCE,
W
NORMAL ZENER VOLTAGE, Volts
T
J
=25 C
O
I
Z(AC)=0.1
I
F=1 kHZ
Z(DC)
FOR
W
ARD
CURRENT
,m
A
TYPICAL FORWARD VOLTAGE
FORWARD VOLTAGE, Volts
1.2
1.1
1.0
0.9
0.8
0.7
0.6
0.5
0.4
1000
100
10
1
75 C
O
5 C
O
25 C
O
150 C
O
TYPICAL CAPACITANCE
100
1000
100
10
1
10
1
BIAS AT
50% OF VZ NOM
0 V BIAS
1 V BIAS
CAP
ACIT
ANCE,
pF
NOMINAL ZENER VOLTAGE, Volts
T =25 C
A
o
100
10
1
NOMINAL ZENER VOLTAGE, Volts
TEMPERA
TURE
COEFFICIENT
,mV
/
C
)
o
10
100
TEMPERATURE ( C)
o
POWER
DISSIP
A
TION,
W
atts
STEADY STATE POWER DERATING
1.2
1.0
0.8
0.6
0.4
0.2
0
150
125
100
75
50
25
P
D V
.
S
. T
A
155
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