MMSZ5221B THRU MMSZ5262B
PB FREE PRODUCT
500mW SURFACE MOUNT ZENER DIODES
FEATURES
* Planar Die construction
* 500mW Power Dissipation
* Ideally Suited for Automated Assembly Processes
.154(3.90)
.141(3.60)
.110(2.8)
.098(2.5)
.028(0.7)
.019(0.5)
MECHANICAL DATA
* Case: SOD-123, Molded Plastic
* Terminals: Solderable per MIL-STD-202E, Method 208
* Polarity: See Diagram Below
* Approx. Weight:
0 . 0 1
grams
* Mounting Position: Any
* Packing information: T/R - 3K per 7" plastic Reel
.008(.20)MAX
.004(.10)MAX
.016(.40)MIN
Dimensions in inches and (millimeters)
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS
Ratings at 25℃ ambient temperature unless otherwise specified.
Single phase half wave, 60Hz, resistive of inductive load.
For capacitive load, derate current by 20%
PARAMETER
Power Dissipation at Tamb=25℃
Pack Forward Surge Current (8.3mS single half)
Operating Junction and Storage Temperature Range
SYMBOL
P
TOT
I
FSM
T
J
,T
S
VALUE
500
4
-55 to +150
.053(1.35)
.037(0.95)
.071(1.8)
.055(1.4)
UNIT
mW
Amps
℃
Valid provided that leads at a distance of 10mm from case kept at ambient temperature.
PARAMETER
Typical Thermal Resistance
Forward Voltage Range at I
F
=100mA
SYMBOL
R
ΘJA
V
F
Min.
-
-
Typ.
-
-
Max.
0.3
1.0
Amps
K/mW
V
Valid provided that leads at a distance of 10mm from case kept at ambient temperature.
MMSZ5221B THRU MMSZ5262B
PB FREE PRODUCT
500mW SURFACE MOUNT ZENER DIODES
TEMPERATURE COEFFICIENT,(mV /
O
C)
TEMPERATURE COEFFICIENT,(mV /
O
C)
8
7
6
5
4
3
2
1
100
10
0
-1
-2
-3
2
3
4
5
6
7
8
9
10
11
12
1
10
100
NOMINAL ZENER VOLTAGE,VOLTS
NOMINAL ZENER VOLTAGE,VOLTS
Fig.1 TEMPERATURE COEFFICENTS
Fig.2 TEMPERATURE COEFFICENTS
1000
DYNAMIC IMPEDANCE,W
IZ = 1 mA
FORWARD CURRENT,mA
T
J
=25 C
I
Z(AC)=0.1
I
Z(DC)
F=1 kHZ
O
1000
100
5 mA
20 mA
100
10
10
150
O
C
75
O
C
25
O
C
5
O
C
1
1
10
NORMAL ZENER VOLTAGE, VOLTS
100
1
0.4
0.5
0.6
0.7
0.8
0.9
1.0
1.1
1.2
FORWARD VOLTAGE, VOLTS
Fig.3 EFFECT OF ZENER VOLTAGE ON ZENER IMPEDANCE
Fig.4 TYPICAL FORWARD VOLTAGE
1000
0.6
POWER DISSIPATION, Watts
0.5
0.4
0.3
0.2
0.1
0
T
A
=25 C
O
CAPACITANCE,pF
0 V BIAS
1 V BIAS
100
BIASAT
50% OF VZ NOM
10
T
A
=25
o
C
1
0
25
50
75
100
125
150
1
10
NORMAL ZENER VOLTAGE, VOLTS
100
TEMPERATURE (
O
C)
Fig.5 STEADY STATE POWER DERATING
Fig.6 TYPICAL CAPACITANCE
MMSZ5221B THRU MMSZ5262B
PB FREE PRODUCT
500mW SURFACE MOUNT ZENER DIODES
10
-1
10
0
ZENER CURRENT, Amperes
ZENER CURRENT, Amperes
MMSZ5221B
MMSZ5225B
MMSZ5230B
MMSZ5235B
10
-1
MMSZ5240B
10
-2
10
-2
MMSZ5245B
MMSZ5250B
MMSZ5256B
MMSZ5259B
10
-3
10
-3
10
-4
10
-5
10
-4
10
-6
10
-7
10
-5
10
-8
0
2
4
6
8
10
12
10
15
20
25
30
35
40
45
ZENER VOLTAGE, VOLTS
Fig.7 ZENER VOLTAGE VERSUS ZENER CURRENT
ZENER VOLTAGE, VOLTS
Fig.8 ZENER VOLTAGE VERSUS ZENER CURRENT
1000
LEAKAGE CURRENT,uA
100
10
1
0.1
0.01
0.001
0.0001
0.00001
0
10
20
30
40
50
60
70
+150 C
O
+25 C
-55 C
80
90
O
O
NORMAL ZENER VOLTAGE, VOLTS
Fig.9 TYPICAL LEAKAGE CURRENT
Embedded System
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