NOT RECOMMENDED FOR
NEW DESIGN, USE
MMSZ52xxB
1N5221B - 1N5267B
500mW EPITAXIAL ZENER DIODE
Features
•
•
•
•
•
•
500mW Power Dissipation
High Stability
Surface Mount Equivalents Available
Hermetic Package
V
Z
- Tolerance ±5%
Lead Free Finish, RoHS Compliant (Note 2)
Mechanical Data
•
•
•
•
•
•
•
•
Case: DO-35
Case Material: Glass
Moisture Sensitivity: Level 1 per J-STD-020C
Leads: Solderable per MIL-STD-202, Method 208
Terminals: Finish - Sn96.5Ag3.5. Solderable per
MIL-STD-202, Method 208
Polarity: Cathode Band
Marking: Type Number
Weight: 0.13 grams (approximate)
Dim
A
B
C
D
DO-35
Min
25.40
⎯
⎯
⎯
Max
⎯
4.00
0.60
2.00
All Dimensions in mm
Maximum Ratings and Electrical Characteristics
Characteristic
Power Dissipation (Note 1)
Thermal Resistance, Junction to Ambient Air (Note 1)
Forward Voltage
@ I
F
= 200mA
Operating and Storage Temperature Range
Notes:
@T
A
= 25°C unless otherwise specified
Value
500
300
1.1
-65 to +200
Unit
mW
°C/W
V
°C
Symbol
P
d
R
θ
JA
V
F
T
j,
T
STG
1. Valid provided that leads are kept at TL
≤75°C
with lead length = 9.5mm (3/8”) from case; derate above 75°C.
2. EC Directive 2002/95/EC (RοHS) revision 13.2.2003. Glass and high temperature solder exemptions applied where applicable,
see
EU Directive Annex Notes 5 and 7.
DS18006 Rev. 16 - 3
1 of 3
www.diodes.com
1N5221B - 1N5267B
© Diodes Incorporated
NOT RECOMMENDED FOR
NEW DESIGN, USE
MMSZ52xxB
Electrical Characteristics
Type
Number
@T
A
= 25°C unless otherwise specified
Test
Current
I
ZT
Max (V)
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
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
19.95
21.00
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
71.40
78.75
mA
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
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
3.4
3.2
3.0
2.7
2.5
2.2
2.1
2.0
1.8
1.7
Maximum Zener
Impedance
Z
ZK
@ I
ZK
=
Z
ZT
@ I
ZT
0.25mA
Ω
30
30
30
30
29
28
24
23
22
19
17
11
7.0
7.0
5.0
6.0
8.0
8.0
10
17
22
30
13
15
16
17
19
21
23
25
29
33
35
41
44
49
58
70
80
93
105
125
150
170
185
230
270
Ω
1200
1250
1300
1400
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
600
600
600
600
700
700
800
900
1000
1100
1300
1400
1400
1600
1700
Table 1
Maximum Reverse
Current
I
R
µA
100
100
75
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
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
@V
R
V
1.0
1.0
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
9.9
10
11
12
13
14
14
15
17
18
19
21
21
23
25
27
30
33
36
39
43
46
47
52
56
Maximum
Temperature
Coefficient
@ I
ZT
%/°C
-0.085
-0.085
-0.080
-0.080
-0.075
-0.070
-0.065
-0.060
+0.055
+0.030
+0.030
+0.038
+0.038
+0.045
+0.050
+0.058
+0.062
+0.065
+0.068
+0.075
+0.076
+0.077
+0.079
+0.082
+0.082
+0.083
+0.084
+0.085
+0.086
+0.086
+0.087
+0.087
+0.089
+0.090
+0.091
+0.091
+0.092
+0.093
+0.094
+0.095
+0.095
+0.096
+0.096
+0.097
+0.097
+0.097
+0.098
Zener Voltage Range
(Note 3)
V
Z
@ I
ZT
Nom (V)
Min (V)
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
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
18.05
19.00
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
64.60
71.25
1N5221B
1N5222B
1N5223B
1N5224B
1N5225B
1N5226B
1N5227B
1N5228B
1N5229B
1N5230B
1N5231B
1N5232B
1N5233B
1N5234B
1N5235B
1N5236B
1N5237B
1N5238B
1N5239B
1N5240B
1N5241B
1N5242B
1N5243B
1N5244B
1N5245B
1N5246B
1N5247B
1N5248B
1N5249B
1N5250B
1N5251B
1N5252B
1N5253B
1N5254B
1N5255B
1N5256B
1N5257B
1N5258B
1N5259B
1N5260B
1N5261B
1N5262B
1N5263B
1N5264B
1N5265B
1N5266B
1N5267B
Notes:
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
7.5
8.2
8.7
9.1
10
11
12
13
14
15
16
17
18
19
20
22
24
25
27
28
30
33
36
39
43
47
51
56
60
62
68
75
3. Based on dc measurement at thermal equilibrium; lead length = 9.5mm (3/8”); thermal resistance of heat sink = 30°C/W.
DS18006 Rev. 16 - 3
2 of 3
www.diodes.com
1N5221B - 1N5267B
© Diodes Incorporated
NOT RECOMMENDED FOR
NEW DESIGN, USE
MMSZ52xxB
Ordering Information
(Notes 4 & 5)
Device
(Type Number)-A*
(Type Number)-T*
Notes:
Packaging
DO-35
DO-35
Shipping
5K/Ammo Pack
5K/Tape & Reel
4. *Add "-A" or "-T" to the appropriate type number in Table 1. Example: 6.2V Zener = 1N5234B-A for ammo pack.
5. For packaging details, visit our website at http://www.diodes.com/datasheets/ap02008.pdf.
IMPORTANT NOTICE
Diodes Incorporated and its subsidiaries reserve the right to make modifications, enhancements, improvements, corrections or other changes
without further notice to any product herein. Diodes Incorporated does not assume any liability arising out of the application or use of any product
described herein; neither does it convey any license under its patent rights, nor the rights of others. The user of products in such applications shall
assume all risks of such use and will agree to hold Diodes Incorporated and all the companies whose products are represented on our website,
harmless against all damages.
LIFE SUPPORT
Diodes Incorporated products are not authorized for use as critical components in life support devices or systems without the expressed written
approval of the President of Diodes Incorporated.
DS18006 Rev. 16 - 3
3 of 3
www.diodes.com
1N5221B - 1N5267B
© Diodes Incorporated
DIY/Open Source Hardware
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