MMSZ5221B Series
Surface Mount Zener Diodes
Features:
*500mw Power Dissipation
*Ideal for Surface Mountted Application
*Zener Breakdown Voltage Range 2.4V to 110V
SMALL SIGNAL
ZENER DIODES
500m WATTS
Mechanical Data:
*Case : SOD-123 Molded plastic
*Terminals: Solderable per MIL-STD-202, Method 208
*Polarity: Cathode Indicated by Polarity Band
*Marking: Marking Code (See Table on Page 3)
*Weigh: 0.01grams(approx)
1
2
SOD-123
SOD-123 Outline Dimensions
Unit:mm
SOD-123
Dim
A
B
C
D
E
H
J
K
Min
Max
2.55
2.85
1.40
1.80
0.95
1.35
0.50
0.70
0.30 REF
-
0.10
-
0.15
3.55
3.85
PIN 1. CATHODE
2. ANODE
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MMSZ5221B Series
Maximum Ratings and Electrical Characteristics
Characteristics
Total Power Dissipation on FR-5 Board
@T
L
=75 C
Thermal Resistance Junction to Ambient Air
Forward Voltage @ IF=10mA
Junction and Storage Temperature Range
-
-
(2)
(1)
WEITRON
(TA=25 C Unless Otherwise Noted)
Symbol
PD
R JA
VF
Tj,TSTG
Value
500
340
0.9
-65 to+150
Unit
mW
C/W
V
C
NOTES:1. FR-5=3.5 1.5inches, using the on minimum recommedned footprint.
2. Thermal Resistance measurement obtained via infrared scan method.
ELECTRICAL CHARACTERISTICS
(T
A
= 25 C unles s otherwis e noted, V
F
= 0.9 V Max. @ I
F
= 10 mA)
I
I
F
Symbol
V
Z
I
ZT
Z
ZT
I
R
V
R
I
F
V
F
Izk
Zzk
R evers e C urrent
Parameter
R evers e Zener Voltage @ I
ZT
Maximum Zener Impedance @ I
ZT
R evers e Leakage C urrent @ V
R
R evers e Voltage
F orward C urrent
F orward Voltage @ I
F
R evers e C urrent
Maximun Zener Impedance @ Izk
V
Z
V
R
I
R
V
F
I
ZT
V
Zener V
oltage Regulator
Device Marking
Item
MMSZ5221B
Series
Marking
XX=Specific Device Code
(See Table on page3)
Equivalent Circuit Diagram
1
2
Cathode
Anode
WEITRON
MMSZ5221B Series
E L E C T R IC A L C HA R A C T E R IS T IC S
(T
A
= 25 C unles s otherwis e noted, V
F
= 0.9 V Max. @ I
F
= 10 mA)
Zener Voltage (Notes 3 and 4)
Devic e
Marking
V
Z
(Volts )
Min
Nom
Max
@ I
ZT
mA
Zener Impedanc e(Note 5)
Z
ZT
@ I
ZT
Z
ZK
@ I
ZK
L eakage C urrent
I
R
@ V
R
uA
Volts
Devic e
MMS Z5221B
MMS Z5222B
MMS Z5223B
MMS Z5224B
MMS Z5225B
Ω
30
30
30
30
29
28
24
23
22
19
17
11
7
7
5
Ω
1200
1250
1300
1400
1600
1600
1700
1900
2000
1900
1600
1600
1600
1000
750
mA
C1
C2
C3
C4
C5
D1
D2
D3
D4
D5
E1
E2
E3
E4
E5
2.28
2.38
2.57
2.66
2.85
3.14
3.42
3.71
4.09
4.47
4.85
5.32
5.70
5.89
6.46
2.4
2.5
2.7
2.8
3.0
3.3
3.6
3.9
4.3
4.7
5.1
5.6
6.0
6.2
6.8
2.52
2.63
2.84
2.94
3.15
3.47
3.78
4.10
4.52
4.94
5.36
5.88
6.30
6.51
7.14
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
100
100
75
75
50
25
15
10
5
5
5
5
5
5
3
1
1
1
1
1
1
1
1
1
2
2
3
3.5
4
5
MMS Z5226B
MMS Z5227B
MMS Z5228B
MMS Z5229B
MMS Z5230B
MMS Z5231B
MMS Z5232B
MMS Z5233B
MMS Z5234B
MMS Z5235B
MMS Z5236B
MMS Z5237B
MMS Z5238B
MMS Z5239B
MMS Z5240B
MMS Z5241B
MMS Z5242B
MMS Z5243B
MMS Z5244B
MMS Z5245B
MMS Z5246B
MMS Z5247B
MMS Z5248B
MMS Z5250B
F1
F2
F3
F4
F5
H1
H2
H3
H4
H5
J1
J2
J3
J5
7.13
7.79
8.27
8.65
9.50
10.45
11.40
12.35
13.30
14.25
15.20
16.15
17.10
19.00
7.5
8.2
8.7
9.1
10
11
12
13
14
15
16
17
18
20
7.88
8.61
9.14
9.56
10.50
11.55
12.60
13.65
14.70
15.75
16.80
17.85
18.90
21.00
20
20
20
20
20
20
20
9.5
9.0
8.5
7.8
7.4
7.0
6.2
6
8
8
10
17
22
30
13
15
16
17
19
21
25
500
500
600
600
600
600
600
600
600
600
600
600
600
600
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
3
3
3
3
3
2
1
0.5
0.1
0.1
0.1
0.1
0.1
0.1
6
6.5
6.5
7
8
8.4
9.1
9.9
10
11
12
13
14
15
MMS Z5251B
MMS Z5252B
MMS Z5253B
MMS Z5254B
MMS Z5255B
MMS Z5256B
MMS Z5257B
MMS Z5258B
MMS Z5259B
MMS Z5260B
MMS Z5261B
MMS Z5262B
MMS Z5263B
MMS Z5264B
MMS Z5265B
K1
K2
K3
K4
K5
M1
M2
M3
M4
M5
N1
N2
N3
N4
N5
20.90
22.80
23.75
25.65
26.60
28.50
31.35
34.20
37.05
40.85
44.65
48.45
53.20
57.00
58.90
22
24
25
27
28
30
33
36
39
43
47
51
56
60
62
23.10
25.20
26.25
28.35
29.40
31.50
34.65
37.80
40.95
45.15
49.35
53.55
58.80
63.00
65.10
5.6
5.2
5.0
4.6
4.5
4.2
3.8
3.4
3.2
3.0
2.7
2.5
2.2
2.1
2.0
29
33
35
41
44
49
58
70
80
93
105
125
150
170
185
600
600
600
600
600
600
700
700
800
900
1000
1100
1300
1400
1400
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
17
18
19
21
21
23
25
27
30
33
36
39
43
46
47
MMS Z5266B
MMS Z5267B
MMS Z5268B
MMS Z5269B
MMS Z5270B
MMS Z5272B
P1
P2
P3
P4
P5
R2
64.60
71.25
77.90
82.65
86.45
104.5
68
75
82
87
91
110
71.40
78.75
86.10
91.35
95.55
115.5
1.8
1.7
1.5
1.4
1.4
1.1
230
270
330
370
400
750
1600
1700
2000
2200
2300
3000
0.25
0.25
0.25
0.25
0.25
0.25
0.1
0.1
0.1
0.1
0.1
0.1
52
56
62
68
69
84
NOTE :
3. T he type numbers s hown have a s tandard tolerance of
+
5% on the nominal Zener voltage.
-
+
1
4. Nominal Zener voltage is meas ured with the device junction in thermal equilibrium at T
L
= 30 C
-
C
5. Z
ZT
and Z
ZK
are meas ured by dividing the AC voltage drop acros s the device by the ac current applied.
T he s pecified limits are for I
Z(AC )
= 0.1 I
Z(dc)
with the AC frequency = 1 K Hz.
WEITRON
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MMSZ5221B Series
TYPICAL CHARACTERISTICS
T E MP E R AT UR E C OE F F IC IE NT (mV / C )
8
7
6
5
4
3
2
1
0
-1
-2
-3
V
Z
@ I
ZT
T Y P IC AL T
C
VALUE S
F OR MMS Z5221B T 1 S E R IE S
T E MP E R AT UR E C OE F F IC IE NT (mV / C )
100
T Y P IC AL T
C
VALUE S
F OR MMS Z5221B T 1 S E R IE S
V
Z
@ I
ZT
10
qV
Z
,
2
3
4
5
6
7
8
9
10
V
Z
, NOMINAL ZE NE R V OLTAG E (V )
11
12
V Z
,
1
10
V
Z
, NOMINAL ZE NE R V OLTAG E (V )
100
F igure 1. T emperature C oeffic ients
(Temperature R ange - 55 C to +150 C )
P
pk
, P E AK S UR G E P OWE R (WAT T S )
1.2
1.0
0.8
0.6
0.4
0.2
0
0
25
50
75
100
T, T E MP E R AT UR E ( C )
125
150
P
D
vers us T
A
P
D
vers us T
L
1000
F igure 2. Temperature C oeffic ients
(Temperature R ange - 55 C to +150 C )
R E C TANG ULAR
WAV E F OR M, T
A
= 25 C
100
10
1
0.1
1
10
100
P W, P ULS E WIDT H (ms )
1000
F igure 3. S teady S tate P ower Derating
1000
Z
ZT
, DY NAMIC IMP E DANC E (W)
T
J
= 25 C
I
Z(AC )
= 0.1 I
Z(DC )
f = 1 kHz
1000
I
F
, F OR WAR D C UR R E NT (mA)
F igure 4. Maximum Nonrepetitive S urge P ower
I
Z
= 1 mA
5 mA
20 mA
10
75 V (MMS Z5267B T 1)
91 V (MMS Z5270B T 1)
100
100
10
150 C
1
1
10
V
Z
, NOMINAL ZE NE R V OLTAG E
100
1
0.4
0.5
75 C 25 C
0 C
1.1
1.2
0.6
0.7
0.8
0.9
1.0
V
F
, F OR WAR D V OLTAG E (V )
F igure 5. E ffec t of Zener Voltage on
Zener Impedanc e
F igure 6. Typic al F orward Voltage
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MMSZ5221B Series
T Y P IC A L C HA R A C T E R IS T IC S
1000
0 V B IAS
1 V B IAS
T
A
= 25 C
I
R
, LE AK AG E C UR R E NT ( A)
1000
100
10
1
0.1
0.01
+ 25 C
- 55 C
0
10
20
30
40
50
60
70
V
Z
, NOMINAL ZE NE R V OLTAG E (V )
80
90
+150 C
C , C APAC ITANC E (pF )
100
B IAS AT
50% OF V
Z
NOM
10
0.001
0.0001
1
1
10
V
Z
, NOMINAL ZE NE R V OLTAG E (V )
100
0.00001
F igure 7. Typic al C apac itanc e
F igure 8. Typic al L eakage C urrent
100
T
A
= 25 C
I
Z
, ZE NE R C UR R E NT (mA)
100
T
A
= 25 C
I
Z
, ZE NE R C UR R E NT (mA)
10
10
1
1
0.1
0.1
0.01
0
2
4
6
8
V
Z
, ZE NE R V OLTAG E (V )
10
12
0.01
10
30
50
70
V
Z
, ZE NE R V OLTAG E (V )
90
F igure 9. Zener Voltage vers us Zener C urrent
(V
Z
Up to 12 V )
F igure 10. Zener Voltage vers us Zener C urrent
(12 V to 91 V )
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