Fairchild MMBZ5221B, MMBZ5257B service manual
MMBZ5221B-MMBZ5257B
Zener Diodes
Tolerance = 5%
MMBZ5221B-MMBZ5257B — Zener Diodes
November 2011
3
Absolute Maximum Ratings * T
2
1
SOT-23
= 25°C unless otherwise noted
A
CONNECTION
DIAGRAM
3
1
2 NC
Symbol Parameter Value Units
P
D
T
STG
T
J
* These ratings are limiting values above which the serviceability of the diode may be impaired.
NOTES:
1)These ratings are based on a maximum junction temperature of 150 degrees C.
2)These are steady state limits. The factory should be consulted on applications involving pulsed or low duty cycle
operations.
Electrical Characteristics T
Device Mark
MMBZ5221B
MMBZ5223B
MMBZ5226B
MMBZ5227B
MMBZ5228B
MMBZ5229B
MMBZ5230B
MMBZ5231B
MMBZ5232B
MMBZ5233B
MMBZ5234B
MMBZ5235B
MMBZ5236B
MMBZ5237B
MMBZ5238B
MMBZ5239B
MMBZ5240B
MMBZ5241B
MMBZ5242B
Forward Voltage = 0.9V Maximum @ IF = 10mA for all MMBZ5200 series
V
F
Power Dissipation 350 mW
Storage Temperature Range -55 to +150 °C
Operating Junction Temperature +150 °C
= 25°C unless otherwise noted
A
V
(V)
18A
18C
8A
8B
8C
8D
8E
8F
8G
8H
8J
8K
8L
8M
8N
8P
8Q
8R
8S
Z
Min. Nor. Max.
2.28
2.565
3.135
3.42
3.705
4.085
4.465
4.845
5.32
5.7
5.89
6.46
7.125
7.79
8.265
8.645
9.5
10.45
11.4
2.4
2.7
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
2.52
2.835
3.465
3.78
4.095
4.515
4.935
5.355
5.88
6.3
6.51
7.14
7.875
8.61
9.135
9.555
10.5
11.55
12.6
(Ω) @ IZ (mA) ZZK(Ω) @ IZK(mA) IR (μA) @ VR (V)
Z
Z
30
30
28
24
23
22
19
17
11
7.0
7.0
5.0
6.0
8.0
8.0
10
17
22
30
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
1,200
1,300
1,600
1,700
1,900
1,000
1,900
1,600
1,600
1,600
1,000
750
500
500
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
0.25
0.25
0.25
0.25
0.25
100
75
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
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
© 2011 Fairchild Semiconductor Corporation www.fairchildsemi.com
MMBZ5221B-MMBZ5257B Rev. B0 1
MMBZ5221B-MMBZ5257B — Zener Diodes
Electrical Characteristics (Continued) T
(V)
V
Device Mark
MMBZ5243B
MMBZ5244B
MMBZ5245B
MMBZ5246B
MMBZ5247B
MMBZ5248B
MMBZ5249B
MMBZ5250B
MMBZ5251B
MMBZ5252B
MMBZ5253B
MMBZ5254B
MMBZ5255B
MMBZ5256B
MMBZ5257B
8T
8U
8V
8W
8X
8Y
8Z
81A
81B
81C
81D
81E
81F
81G
81H
Min. Nor. Max.
12.35
13.3
14.25
15.2
16.15
17.1
18.05
19
20.9
22.8
23.75
25.65
26.6
28.5
31.35
Z
13
14
15
16
17
18
19
20
22
24
25
27
28
30
33
= 25°C unless otherwise noted
A
Z
(Ω) @ IZ (mA) ZZK(Ω) @ IZK(mA) IR (μA) @ VR (V)
Z
13.65
14.7
15.75
16.8
17.85
18.9
19.95
21
23.1
25.2
26.25
28.35
29.4
31.5
34.65
13
15
16
17
19
21
23
25
29
33
35
41
44
49
58
9.5
9.0
8.5
7.8
7.4
7.0
6.6
6.2
5.6
5.2
5.0
4.6
4.5
4.2
3.8
VF Forward Voltage = 0.9V Maximum @ IF = 10mA for all MMBZ5200 series
600
600
600
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
0.25
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
0.1
0.1
9.9
10
11
12
13
14
14
15
17
18
19
21
21
23
25
© 2011 Fairchild Semiconductor Corporation www.fairchildsemi.com
MMBZ5221B-MMBZ5257B Rev. B0 2
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