1N5221B THRU 1N5278B
SILICON ZENER DIODES
500mW, 2.4 THRU 170 VOLT
5% TOLERANCE
DESCRIPTION:
The CENTRAL SEMICONDUCTOR 1N5221B series
silicon Zener diodes are highly reliable voltage regulators
designed for use in industrial, commercial, entertainment
and computer applications.
MAXIMUM RATINGS: (TL=75°C) SYMBOL UNITS
Power Dissipation PD 500 mW
Operating and Storage Junction Temperature TJ, Tstg -65 to +200 °C
VZ Tolerance: Part number with “B” suffix ±5 %
VZ Tolerance: Part number with “C” suffix ±2 %
VZ Tolerance: Part number with “D” suffix ±1 %
ELECTRICAL CHARACTERISTICS: (TA=25°C) VF=1.1V MAX @ IF=200mA (for all types)
TYPE
ZENER
VOLTAGE
VZ @ IZT
TEST
CURRENT
MAXIMUM ZENER
IMPEDANCE
MAXIMUM
REVERSE
CURRENT
MAXIMUM
TEMPERATURE
COEFFICIENT
MIN NOM MAX IZT ZZT @ IZT ZZK @ IZK IR @ VRVZ
V V V mA Ω Ω mA μA V %/°C
1N5221B 2.280 2.4 2.520 20 30 1200 0.25 100 1.0 -0.085
1N5222B 2.375 2.5 2.625 20 30 1250 0.25 100 1.0 -0.085
1N5223B 2.565 2.7 2.835 20 30 1300 0.25 75 1.0 -0.080
1N5224B 2.660 2.8 2.940 20 30 1400 0.25 75 1.0 -0.080
1N5225B 2.850 3.0 3.150 20 29 1600 0.25 50 1.0 -0.075
1N5226B 3.135 3.3 3.465 20 28 1600 0.25 25 1.0 -0.070
1N5227B 3.420 3.6 3.780 20 24 1700 0.25 15 1.0 -0.065
1N5228B 3.705 3.9 4.095 20 23 1900 0.25 10 1.0 -0.060
1N5229B 4.085 4.3 4.515 20 22 2000 0.25 5.0 1.0 ±0.055
1N5230B 4.465 4.7 4.935 20 19 1900 0.25 5.0 2.0 ±0.030
1N5231B 4.845 5.1 5.355 20 17 1600 0.25 5.0 2.0 ±0.030
1N5232B 5.320 5.6 5.880 20 11 1600 0.25 5.0 3.0 +0.038
1N5233B 5.700 6.0 6.300 20 7.0 1600 0.25 5.0 3.5 +0.038
1N5234B 5.890 6.2 6.510 20 7.0 1000 0.25 5.0 4.0 +0.045
1N5235B 6.460 6.8 7.140 20 5.0 750 0.25 3.0 5.0 +0.050
1N5236B 7.125 7.5 7.875 20 6.0 500 0.25 3.0 6.0 +0.058
1N5237B 7.790 8.2 8.610 20 8.0 500 0.25 3.0 6.5 +0.062
1N5238B 8.265 8.7 9.135 20 8.0 600 0.25 3.0 6.5 +0.065
1N5239B 8.645 9.1 9.555 20 10 600 0.25 3.0 7.0 +0.068
1N5240B 9.500 10 10.50 20 17 600 0.25 3.0 8.0 +0.075
1N5241B 10.45 11 11.55 20 22 600 0.25 2.0 8.4 +0.076
1N5242B 11.40 12 12.60 20 30 600 0.25 1.0 9.1 +0.077
1N5243B 12.35 13 13.65 9.5 13 600 0.25 0.5 9.9 +0.079
1N5244B 13.30 14 14.70 9.0 15 600 0.25 0.1 10 +0.082
1N5245B 14.25 15 15.75 8.5 16 600 0.25 0.1 11 +0.082
1N5246B 15.20 16 16.80 7.8 17 600 0.25 0.1 12 +0.083
DO-35 CASE
R3 (11-September 2013)
www.centralsemi.com
1N5221B THRU 1N5278B
SILICON ZENER DIODES
500mW, 2.4 THRU 170 VOLT
5% TOLERANCE
DO-35 CASE - MECHANICAL OUTLINE
ELECTRICAL CHARACTERISTICS - Continued: (TA=25°C) VF=1.1V MAX @ IF=200mA (for all types)
TYPE
ZENER
VOLTAGE
VZ @ IZT
TEST
CURRENT
MAXIMUM ZENER
IMPEDANCE
MAXIMUM
REVERSE
CURRENT
MAXIMUM
TEMPERATURE
COEFFICIENT
MIN NOM MAX IZT ZZT @ IZT ZZK @ IZK IR @ VRVZ
V V V mA Ω Ω mA μA V %/°C
1N5247B 16.15 17 17.85 7.4 19 600 0.25 0.1 13 +0.084
1N5248B 17.10 18 18.90 7.0 21 600 0.25 0.1 14 +0.085
1N5249B 18.05 19 19.95 6.6 23 600 0.25 0.1 14 +0.086
1N5250B 19.00 20 21.00 6.2 25 600 0.25 0.1 15 +0.086
1N5251B 20.90 22 23.10 5.6 29 600 0.25 0.1 17 +0.087
1N5252B 22.80 24 25.20 5.2 33 600 0.25 0.1 18 +0.088
1N5253B 23.75 25 26.25 5.0 35 600 0.25 0.1 19 +0.089
1N5254B 25.65 27 28.35 4.6 41 600 0.25 0.1 21 +0.090
1N5255B 26.60 28 29.40 4.5 44 600 0.25 0.1 21 +0.091
1N5256B 28.50 30 31.50 4.2 49 600 0.25 0.1 23 +0.091
1N5257B 31.35 33 34.65 3.8 58 700 0.25 0.1 25 +0.092
1N5258B 34.20 36 37.80 3.4 70 700 0.25 0.1 27 +0.093
1N5259B 37.05 39 40.95 3.2 80 800 0.25 0.1 30 +0.094
1N5260B 40.85 43 45.15 3.0 93 900 0.25 0.1 33 +0.095
1N5261B 44.65 47 49.35 2.7 105 1000 0.25 0.1 36 +0.095
1N5262B 48.45 51 53.55 2.5 125 1100 0.25 0.1 39 +0.096
1N5263B 53.20 56 58.80 2.2 150 1300 0.25 0.1 43 +0.096
1N5264B 57.00 60 63.00 2.1 170 1400 0.25 0.1 46 +0.097
1N5265B 58.90 62 65.10 2.0 185 1400 0.25 0.1 47 +0.097
1N5266B 64.60 68 71.40 1.8 230 1600 0.25 0.1 52 +0.097
1N5267B 71.25 75 78.75 1.7 270 1700 0.25 0.1 56 +0.098
1N5268B 77.90 82 86.10 1.5 330 2000 0.25 0.1 62 +0.098
1N5269B 82.65 87 91.35 1.4 370 2200 0.25 0.1 68 +0.099
1N5270B 86.45 91 95.55 1.4 400 2300 0.25 0.1 69 +0.099
1N5271B 95.00 100 105.0 1.3 500 2600 0.25 0.1 76 +0.110
1N5272B 104.5 110 115.5 1.1 750 3000 0.25 0.1 84 +0.110
1N5273B 114.0 120 126.0 1.0 900 4000 0.25 0.1 91 +0.110
1N5274B 123.5 130 136.5 0.95 1100 4500 0.25 0.1 99 +0.110
1N5275B 133.0 140 147.0 0.90 1300 4500 0.25 0.1 106 +0.110
1N5276B 142.5 150 157.5 0.85 1500 5000 0.25 0.1 114 +0.110
1N5277B 152.0 160 168.0 0.80 1700 5500 0.25 0.1 122 +0.110
1N5278B 161.5 170 178.5 0.74 1900 5500 0.25 0.1 129 +0.110
AB
C
D D
www.centralsemi.com
R3 (11-September 2013)
