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quality Durable Central 1N5228B BK PBFREE silicon Zener diode voltage regulator with 500mW power dissipation factory
quality Durable Central 1N5228B BK PBFREE silicon Zener diode voltage regulator with 500mW power dissipation factory
quality Durable Central 1N5228B BK PBFREE silicon Zener diode voltage regulator with 500mW power dissipation factory
quality Durable Central 1N5228B BK PBFREE silicon Zener diode voltage regulator with 500mW power dissipation factory

Durable Central 1N5228B BK PBFREE silicon Zener diode voltage regulator with 500mW power dissipation

Key Attributes
Model Number: 1N5228B BK PBFREE
Product Custom Attributes
Mfr. Part #:
1N5228B BK PBFREE
Package:
DO-35
Product Description

Product Overview

The CENTRAL SEMICONDUCTOR 1N5221B series silicon Zener diodes are highly reliable voltage regulators designed for a wide range of applications including industrial, commercial, entertainment, and computer systems. These diodes offer a power dissipation of 500mW and are available in various voltage ratings from 2.4V to 170V with a standard 5% tolerance.

Product Attributes

  • Brand: CENTRAL SEMICONDUCTOR
  • Material: Silicon
  • Package: DO-35 CASE
  • Voltage Tolerance Options: 5% (B suffix), 2% (C suffix), 1% (D suffix)

Technical Specifications

Part Number Zener Voltage (VZ) MIN (V) Zener Voltage (VZ) NOM (V) Zener Voltage (VZ) MAX (V) Test Current (IZT) (mA) Max Zener Impedance (ZZT @ IZT) () Max Zener Impedance (ZZK @ IZK) () Max Reverse Current (IR @ VR) (A) Max Temperature Coefficient (VZ) (V %/C) Marking Code
1N5221B 2.280 2.4 2.520 20 30 1200 0.25 100 -0.085 C5221B
1N5222B 2.375 2.5 2.625 20 30 1250 0.25 100 -0.085 C5222B
1N5223B 2.565 2.7 2.835 20 30 1300 0.25 75 -0.080 C5223B
1N5224B 2.660 2.8 2.940 20 30 1400 0.25 75 -0.080 C5224B
1N5225B 2.850 3.0 3.150 20 29 1600 0.25 50 -0.075 C5225B
1N5226B 3.135 3.3 3.465 20 28 1600 0.25 25 -0.070 C5226B
1N5227B 3.420 3.6 3.780 20 24 1700 0.25 15 -0.065 C5227B
1N5228B 3.705 3.9 4.095 20 23 1900 0.25 10 -0.060 C5228B
1N5229B 4.085 4.3 4.515 20 22 2000 0.25 5.0 0.055 C5229B
1N5230B 4.465 4.7 4.935 20 19 1900 0.25 5.0 2.0 0.030 C5230B
1N5231B 4.845 5.1 5.355 20 17 1600 0.25 5.0 2.0 0.030 C5231B
1N5232B 5.320 5.6 5.880 20 11 1600 0.25 5.0 3.0 +0.038 C5232B
1N5233B 5.700 6.0 6.300 20 7.0 1600 0.25 5.0 3.5 +0.038 C5233B
1N5234B 5.890 6.2 6.510 20 7.0 1000 0.25 5.0 4.0 +0.045 C5234B
1N5235B 6.460 6.8 7.140 20 5.0 750 0.25 3.0 5.0 +0.050 C5235B
1N5236B 7.125 7.5 7.875 20 6.0 500 0.25 3.0 6.0 +0.058 C5236B
1N5237B 7.790 8.2 8.610 20 8.0 500 0.25 3.0 6.5 +0.062 C5237B
1N5238B 8.265 8.7 9.135 20 8.0 600 0.25 3.0 6.5 +0.065 C5238B
1N5239B 8.645 9.1 9.555 20 10 600 0.25 3.0 7.0 +0.068 C5239B
1N5240B 9.500 10 10.50 20 17 600 0.25 3.0 8.0 +0.075 C5240B
1N5241B 10.45 11 11.55 20 22 600 0.25 2.0 8.4 +0.076 C5241B
1N5242B 11.40 12 12.60 20 30 600 0.25 1.0 9.1 +0.077 C5242B
1N5243B 12.35 13 13.65 9.5 13 600 0.25 0.5 9.9 +0.079 C5243B
1N5244B 13.30 14 14.70 9.0 15 600 0.25 0.1 10 +0.082 C5244B
1N5245B 14.25 15 15.75 8.5 16 600 0.25 0.1 11 +0.082 C5245B
1N5246B 15.20 16 16.80 7.8 17 600 0.25 0.1 12 +0.083 C5246B
1N5247B 16.15 17 17.85 7.4 19 600 0.25 0.1 13 +0.084 C5247B
1N5248B 17.10 18 18.90 7.0 21 600 0.25 0.1 14 +0.085 C5248B
1N5249B 18.05 19 19.95 6.6 23 600 0.25 0.1 14 +0.086 C5249B
1N5250B 19.00 20 21.00 6.2 25 600 0.25 0.1 15 +0.086 C5250B
1N5251B 20.90 22 23.10 5.6 29 600 0.25 0.1 17 +0.087 C5251B
1N5252B 22.80 24 25.20 5.2 33 600 0.25 0.1 18 +0.088 C5252B
1N5253B 23.75 25 26.25 5.0 35 600 0.25 0.1 19 +0.089 C5253B
1N5254B 25.65 27 28.35 4.6 41 600 0.25 0.1 21 +0.090 C5254B
1N5255B 26.60 28 29.40 4.5 44 600 0.25 0.1 21 +0.091 C5255B
1N5256B 28.50 30 31.50 4.2 49 600 0.25 0.1 23 +0.091 C5256B
1N5257B 31.35 33 34.65 3.8 58 700 0.25 0.1 25 +0.092 C5257B
1N5258B 34.20 36 37.80 3.4 70 700 0.25 0.1 27 +0.093 C5258B
1N5259B 37.05 39 40.95 3.2 80 800 0.25 0.1 30 +0.094 C5259B
1N5260B 40.85 43 45.15 3.0 93 900 0.25 0.1 33 +0.095 C5260B
1N5261B 44.65 47 49.35 2.7 105 1000 0.25 0.1 36 +0.095 C5261B
1N5262B 48.45 51 53.55 2.5 125 1100 0.25 0.1 39 +0.096 C5262B
1N5263B 53.20 56 58.80 2.2 150 1300 0.25 0.1 43 +0.096 C5263B
1N5264B 57.00 60 63.00 2.1 170 1400 0.25 0.1 46 +0.097 C5264B
1N5265B 58.90 62 65.10 2.0 185 1400 0.25 0.1 47 +0.097 C5265B
1N5266B 64.60 68 71.40 1.8 230 1600 0.25 0.1 52 +0.097 C5266B
1N5267B 71.25 75 78.75 1.7 270 1700 0.25 0.1 56 +0.098 C5267B
1N5268B 77.90 82 86.10 1.5 330 2000 0.25 0.1 62 +0.098 C5268B
1N5269B 82.65 87 91.35 1.4 370 2200 0.25 0.1 68 +0.099 C5269B
1N5270B 86.45 91 95.55 1.4 400 2300 0.25 0.1 69 +0.099 C5270B
1N5271B 95.00 100 105.0 1.3 500 2600 0.25 0.1 76 +0.110 C5271B
1N5272B 104.5 110 115.5 1.1 750 3000 0.25 0.1 84 +0.110 C5272B
1N5273B 114.0 120 126.0 1.0 900 4000 0.25 0.1 91 +0.110 C5273B
1N5274B 123.5 130 136.5 0.95 1100 4500 0.25 0.1 99 +0.110 C5274B
1N5275B 133.0 140 147.0 0.90 1300 4500 0.25 0.1 106 +0.110 C5275B
1N5276B 142.5 150 157.5 0.85 1500 5000 0.25 0.1 114 +0.110 C5276B
1N5277B 152.0 160 168.0 0.80 1700 5500 0.25 0.1 122 +0.110 C5277B
1N5278B 161.5 170 178.5 0.74 1900 5500 0.25 0.1 129 +0.110 C5278B

Maximum Ratings (TL=75C):

  • Power Dissipation (PD): 500 mW
  • Operating and Storage Junction Temperature (TJ, Tstg): -65 to +200 C

Electrical Characteristics (TA=25C):

  • Forward Voltage (VF): 1.2V MAX @ IF=200mA (for all types)

Marking: Devices are marked with either the prefix 'C' followed by the full part number or by the marking code specified in the Electrical Characteristics table.

Note: Some high voltage 500mW Zener diodes in the DO-35 package (e.g., 1N5263B through 1N5278B and higher) have been classified as End of Life (EOL). Please refer to the latest product change notifications for specific details and potential replacement options.


2411272205_Central-1N5228B-BK-PBFREE_C17686327.pdf

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