MMBZ5221B – MMBZ5259B
Surface Mount Zener Diode
Voltage Range
2.4 to 39 Volts
350m Watts Power Dissipation
Features
a
a
a
a
a
Planar die construction
350mW power dissipation on FR-4 PCB
general purpose, medium current
Ideally suited for automated assembly
processes
Standard zener voltage tolerance is ±5%
tolerance with a :B: suffix
0.020(0.51)
0.015(0.37)
SOT-23
0.055(1.40)
0.047(1.19)
0.098(2.50)
0.083(2.10)
Mechanical Data
a
a
a
a
Case: SOT-23, Molded plastic
Terminals: Solderable per MIIL-STD-202,
Method 208
Polarity: See diagram
Marking: Marking Code (see table on Page 2)
Weight: 0.008 grams (approx.)
0.080(2.05)
0.070(1.78)
0.024(0.61)
0.018(0.45)
0.120(3.05)
0.104(2.65)
0.041(1.05)
0.047(0.89)
0.043(1.10)
0.035(0.89)
a
0.006(0.15)
0.001(0.013)
0.024(0.61)
0.018(0.45)
0.007(0.178)
0.003(0.076)
Dimensions in inches and (millimeters)
Maximum Ratings and Electrical Characteristics
Rating at 25+ambient temperature unless otherwise specified.
Maximum Ratings
Type Number
Forward Voltage
Power Dissipation (Note 1)
Thermal Resistance Junction to Ambient Air
(Note 1)
Operating and Storage Temperature Range
@ IF = 10mA
Symbol
V
F
Pd
R
JA
Value
0.9
350
357
Units
V
mW
K/W
O
T
J
,T
STG
-65 to + 150
Notes: 1. Valid Provided that Terminals are Kept at Ambient Temperature.
2. Tested with Pulses, Tp 1.0ms
C
- 142 -
ELECTRICAL CHARACTERISTICS
(TA=25
O
C
Device
(Note 1)
MMBZ5221B
MMBZ5223B
MMBZ5225B
MMBZ5226B
MMBZ5227B
MMBZ5228B
MMBZ5229B
MMBZ5230B
MMBZ5231B
MMBZ5232B
MMBZ5233B
MMBZ5234B
MMBZ5235B
MMBZ5236B
MMBZ5237B
MMBZ5238B
MMBZ5239B
MMBZ5240B
MMBZ5241B
MMBZ5242B
MMBZ5243B
MMBZ5245B
MMBZ5246B
MMBZ5248B
MMBZ5250B
MMBZ5251B
MMBZ5252B
MMBZ5254B
MMBZ5255B
MMBZ5256B
MMBZ5257B
MMBZ5258B
MMBZ5259B
Device
Marking
Code
KC1
KC3
KC5
KG1
KG2
KG3
KG4
KG5
KE1
KE2
KE3
KE4
KE5
KF1
KF2
KF3
KF4
KF5
KH1
KH2
KH3
KH5
KJ1
KJ3
KJ5
KK1
KK2
KK4
KK5
KM1
KM2
KM3
KM4
Zener Voltage Range (Note 2)
V
z
@ I
zt
Nom (V) Min (V) Max (V)
2.4
2.7
3.0
3.3
3.6
3.9
4.3
4.7
5.1
5.6
6.0
6.2
6.8
7.5
8.2
8.7
9.1
10
11
12
13
15
16
18
20
22
24
27
28
30
33
36
39
2.28
2.57
2.85
3.14
3.42
3.71
4.09
4.47
4.85
5.32
5.70
5.89
6.46
7.13
7.79
8.27
8.65
9.50
10.45
11.40
12.35
14.25
15.20
17.10
19.00
20.90
22.80
25.65
26.60
28.50
31.35
34.20
37.05
2.52
2.84
3.15
3.47
3.78
4.10
4.52
4.94
5.36
5.88
6.30
6.51
7.14
7.88
8.61
9.14
9.56
10.50
11.55
12.60
13.65
15.75
16.80
18.90
21.00
23.10
25.20
28.35
29.40
31.50
34.65
37.80
40.95
I
ZT
mA
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
9.5
8.5
7.8
7.0
6.2
5.6
5.2
5.0
4.5
4.2
3.8
3.4
3.2
unless otherwise noted)
Maximum Zener
Maximum Reverse
Impedance
Z
ZK @
I
ZK
Leakage Current
I
R @
V
R
Z
ZT @
I
ZT
= 0.25mA
Ohms
Ohms
uA
Volts
30
30
30
28
24
23
22
19
17
11
7
7
5
6
8
8
10
17
22
30
13
16
17
21
25
29
33
41
44
49
58
70
80
1200
1300
1600
1600
1700
1900
2000
1900
1600
1600
1600
1000
750
500
500
600
600
600
600
600
600
600
600
600
600
600
600
600
600
600
700
700
800
100
75
50
25
15
10
5.0
5.0
5.0
5.0
5.0
5.0
3.0
3.0
3.0
3.0
3.0
3.0
2.0
1.0
0.5
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
1.0
1.0
1.0
1.0
1.0
1.0
1.0
2.0
2.0
3.0
3.5
4.0
5.0
6.0
6.5
6.5
7.0
8.0
8.4
9.1
9.9
11
12
14
15
17
18
21
21
23
25
27
30
Notes: 1: Valid provided that device terminals are kept at ambient temperature.
2. Tested with pulses, Tp 1.0ms.
- 143 -
RATINGS AND CHARACTERISTIC CURVES (MMBZ5221B - MMBZ5259B)
FIG.1- POWER DISSIPATION VS AMBIENT TEMPERATURE
0.6
0.5
P
D
, POWER DISSIPATION (W)
0.4
0.3
0.2
0.1
0
100
100
100
100
100
100
100
T
A
, AMBIENT TEMPERATURE ( C)
- 144 -
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