Document
OBSOLETE – PART DISCONTINUED
PART OBSOLETE - USE MMSZ52xxB
1N5221B - 1N5267B
500mW EPITAXIAL ZENER DIODE SPICE MODEL: spice model number 1, spice model number 2 etc.
Features
• 500mW Power Dissipation • High Stability • Surface Mount Equivalents Available • Hermetic Package • VZ - Tolerance ±5% • Lead-Free Finish; RoHS Compliant (Notes 1 & 2)
Mechanical Data
• Case: DO-35 • Case Material: Glass • Moisture Sensitivity: Level 1 per J-STD-020 • 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)
DO-35
Dim
Min
Max
A
25.40
B
4.00
C
0.60
D
2.00
All Dimensions in mm
Ordering Information (Notes 3 & 4)
Notes:
Device (Type Number)-T
Packaging DO-35
Shipping 10K/Tape & Reel
1. EU Directive 2002/95/EC (RoHS), 2011/65/EU (RoHS 2) & 2015/863/EU (RoHS 3).compliant. All applicable RoHS exemptions applied. 2. See https://www.diodes.com/quality/lead-free/ for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green" and
Lead-free. 3. Add "-T" to the appropriate type number in Table 1.
Example: 6.2V Zener = 1N5234B-T. 4. For packaging details, go to our website at http://www.diodes.com.
1N5221B - 1N5267B
Document number: DS18006 Rev. 19 - 4
1 of 3 www.diodes.com
September 2019 © Diodes Incorporated
1N5221B - 1N5267B
OBSOLETE – PART DISCONTINUED
Maximum Ratings and Electrical Characteristics @TA = 25°C unless otherwise specified
Characteristic
Power Dissipation (Note 5)
Thermal Resistance, Junction to Ambient Air (Note 5)
Forward Voltage
@ IF = 200mA
Operating and Storage Temperature Range
Symbol PD RθJA VF
TJ, TSTG
Value 500 300 1.1
-65 to +175
Notes: 5. Valid provided that leads are kept at TL ≤75°C with lead length = 9.5mm (3/8”) from case; derate above 75°C.
Unit mW
°C/W V °C
Electrical Characteristics @TA = 25°C unless otherwise specified
Type Number
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
Zener Voltage Range (Note 6)
VZ @ IZT
Nom (V) 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
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
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
Test Current
IZT
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
ZZT @ IZT
ZZK @ IZK = 0.25mA
Ω
Ω
30
1200
30
1250
30
1300
30
1400
29
1600
28
1600
24
1700
23
1900
22
2000
19
1900
17
1600
11
1600
7.0
1600
7.0
1000
5.0
750
6.0
500
8.0
500
8.0
600
10
600
17
600
22
600
30
600
13
600
15
600
16
600
17
600
19
600
21
600
23
600
25
600
29
600
33
600
35
600
41
600
44
600
49
600
58
700
70
700
80
800
93
900
105
1000
125
1100
150
1300
170
1400
185
1400
230
1600
270
1700
Maximum Reverse Current
IR
@VR
µA
V
100
1.0
100
1.0
75
1.0
75
1.0
50
1.0
25
1.0
15
1.0
10
1.0
5.0
1.0
5.0
2.0
5.0
2.0
5.0
3.0
5.0
3.5
5.0
4.0
3.0
5.0
3.0
6.0
3.0
6.5
3.0
6.5
3.0
7.0
3.0
8.0
2.0
8.4
1.0
9.1
0.5
9.9
0.1
10
0.1
11
0.1
12
0.1
13
0.1
14
0.1
14
0.1
15
0.1
17
0.1
18
0.1
19
0.1
21
0.1
21
0.1
23
0.1
25
0.1
27
0.1
30
0.1
33
0.1
36
0.1
39
0.1
43
0.1
46
0.1
47
0.1
52
0.1
56
Notes: 6. Based on dc measurement at thermal equilibrium; lead length = 9.5mm (3/8”); thermal resistance of heat sink = 30°C/W.
Maximum Temperature Coefficient
@ IZT
%/°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
1N5221B - 1N5267B
Document number: DS18006 Rev. 19 - 4
2 of 3 www.diodes.com
September 2019 © Diodes Incor.