DS18006 Rev. 14 - 2 1 of 2 1N5221B - 1N5267B
www.diodes.com ã Diodes Incorporated
1N5221B - 1N5267B
500mW EPITAXIAL ZENER DIODE
Features
Maximum Ratings and Electrical Characteristics @ TA = 25°C unless otherwise specified
Characteristic Symbol Value Unit
Power Dissipation (Note 1) Pd500 mW
Thermal Resistance, Junction to Ambient Air (Note 1) RqJA 300 °C/W
Forward Voltage @ IF = 200mA VF1.1 V
Operating and Storage Temperature Range Tj, TSTG -65 to +200 °C
·Case: DO-35, Glass
·Terminals: Solderable per MIL-STD-202,
Method 208
·Polarity: Cathode Band
·Marking: Type Number
·Weight: 0.13 grams (approx.)
·500mW Power Dissipation
·High Stability
·Low Noise
·Surface Mount Equivalents Available
·Hermetic Package
·VZ - Tolerance ±5%
Mechanical Data
A A
B
C
D
DO-35
Dim Min Max
A25.40 ¾
B¾4.00
C¾0.60
D¾2.00
All Dimensions in mm
Notes: 1. Valid provided that leads are kept at TL £75°C with lead length = 9.5mm (3/8”) from case; derate above 75°C.
SPICE MODELS: 1N5221B 1N5231B 1N5233B 1N5235B 1N5239B 1N5241B
DS18006 Rev. 14 - 2 2 of 2 1N5221B - 1N5267B
www.diodes.com
Electrical Characteristics @ TA = 25°C unless otherwise specified
Type
Number
Zener Voltage Range
(Note 2)
Test
Current
Maximum Zener
Impedance
Maximum Reverse
Current Maximum
Temperature
Coefficient
@I
ZT
VZ @ IZT IZT ZZT @ IZT ZZK @ IZK =
0.25mA IR@VR
Nom (V) Min (V) Max (V) mA WWµA V %/°C
1N5221B 2.4 2.28 2.52 20 30 1200 100 1.0 -0.085
1N5222B 2.5 2.38 2.63 20 30 1250 100 1.0 -0.085
1N5223B 2.7 2.57 2.84 20 30 1300 75 1.0 -0.080
1N5224B 2.8 2.66 2.94 20 30 1400 75 1.0 -0.080
1N5225B 3.0 2.85 3.15 20 29 1600 50 1.0 -0.075
1N5226B 3.3 3.14 3.47 20 28 1600 25 1.0 -0.070
1N5227B 3.6 3.42 3.78 20 24 1700 15 1.0 -0.065
1N5228B 3.9 3.71 4.10 20 23 1900 10 1.0 -0.060
1N5229B 4.3 4.09 4.52 20 22 2000 5.0 1.0 +0.055
1N5230B 4.7 4.47 4.94 20 19 1900 5.0 2.0 +0.030
1N5231B 5.1 4.85 5.36 20 17 1600 5.0 2.0 +0.030
1N5232B 5.6 5.32 5.88 20 11 1600 5.0 3.0 +0.038
1N5233B 6.0 5.70 6.30 20 7.0 1600 5.0 3.5 +0.038
1N5234B 6.2 5.89 6.51 20 7.0 1000 5.0 4.0 +0.045
1N5235B 6.8 6.46 7.14 20 5.0 750 3.0 5.0 +0.050
1N5236B 7.5 7.13 7.88 20 6.0 500 3.0 6.0 +0.058
1N5237B 8.2 7.79 8.61 20 8.0 500 3.0 6.5 +0.062
1N5238B 8.7 8.27 9.14 20 8.0 600 3.0 6.5 +0.065
1N5239B 9.1 8.65 9.56 20 10 600 3.0 7.0 +0.068
1N5240B 10 9.50 10.50 20 17 600 3.0 8.0 +0.075
1N5241B 11 10.45 11.55 20 22 600 2.0 8.4 +0.076
1N5242B 12 11.40 12.60 20 30 600 1.0 9.1 +0.077
1N5243B 13 12.35 13.65 9.5 13 600 0.5 9.9 +0.079
1N5244B 14 13.30 14.70 9.0 15 600 0.1 10 +0.082
1N5245B 15 14.25 15.75 8.5 16 600 0.1 11 +0.082
1N5246B 16 15.20 16.80 7.8 17 600 0.1 12 +0.083
1N5247B 17 16.15 17.85 7.4 19 600 0.1 13 +0.084
1N5248B 18 17.10 18.90 7.0 21 600 0.1 14 +0.085
1N5249B 19 18.05 19.95 6.6 23 600 0.1 14 +0.086
1N5250B 20 19.00 21.00 6.2 25 600 0.1 15 +0.086
1N5251B 22 20.90 23.10 5.6 29 600 0.1 17 +0.087
1N5252B 24 22.80 25.20 5.2 33 600 0.1 18 +0.087
1N5253B 25 23.75 26.25 5.0 35 600 0.1 19 +0.089
1N5254B 27 25.65 28.35 4.6 41 600 0.1 21 +0.090
1N5255B 28 26.60 29.40 4.5 44 600 0.1 21 +0.091
1N5256B 30 28.50 31.50 4.2 49 600 0.1 23 +0.091
1N5257B 33 31.35 34.65 3.8 58 700 0.1 25 +0.092
1N5258B 36 34.20 37.80 3.4 70 700 0.1 27 +0.093
1N5259B 39 37.05 40.95 3.2 80 800 0.1 30 +0.094
1N5260B 43 40.85 45.15 3.0 93 900 0.1 33 +0.095
1N5261B 47 44.65 49.35 2.7 105 1000 0.1 36 +0.095
1N5262B 51 48.45 53.55 2.5 125 1100 0.1 39 +0.096
1N5263B 56 53.20 58.80 2.2 150 1300 0.1 43 +0.096
1N5264B 60 57.00 63.00 2.1 170 1400 0.1 46 +0.097
1N5265B 62 58.90 65.10 2.0 185 1400 0.1 47 +0.097
1N5266B 68 64.60 71.40 1.8 230 1600 0.1 52 +0.097
1N5267B 75 71.25 78.75 1.7 270 1700 0.1 56 +0.098
Notes: 2. Based on dc measurement at thermal equilibrium; lead length = 9.5mm (3/8”); thermal resistance of heat sink = 30°C/W.
