DL5221B~DL5271B
Zener diode
Features
1. High reliability
2. Very sharp reverse characteristi c
3. Low reverse current level
4. VZ-tolerance±5%
Applications
Voltage st abil ization
Absolute Maximum Ratings
Tj=25℃ Parameter Test Conditions Type Symbol Value Unit
Power dissipation Tamb≤75℃ P
V500 mW
Z-current IZPV/VZmA
Junction temperature Tj200 ℃
Storage temperature range Tstg -65~+200 ℃
Maximum Thermal Resistance
Tj=25℃ Parameter Test Conditions Symbol Value Unit
Junction ambient I=9.5mm(3/8”) T L=constant RthJA 300 K/W
Stresses exceeding maximum rati ngs may damage the device. Maximum ratings are stress ratings only. Functional operation above the
recommended operating conditions is not implied. Extended exposure to stresses above the recommended operating conditions may
affect device reliability.
Electrical Characteristics
Tj=25℃ Parameter Test Conditions Type Symbol Min Typ Max Unit
Forward voltage IF=200mA VF 1.1 V
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DL5221B~DL5271B
VZnom1) IZT for r
zjT rzjK at I
ZK IR at V
RTKVZ
Type V mA Ω Ω mA μA V %/K
DL5221B 2.4 20 <30 <1200 0.25 <100 1.0 <-0.085
DL5222B 2.5 20 <30 <1250 0.25 <100 1.0 <-0.085
DL5223B 2.7 20 <30 <1300 0.25 <75 1.0 <-0.080
DL5224B 2.8 20 <30 <1400 0.25 <75 1.0 <-0.080
DL5225B 3.0 20 <29 <1600 0.25 <50 1.0 <-0.075
DL5226B 3.3 20 <28 <1600 0.25 <25 1.0 <-0.070
DL5227B 3.6 20 <24 <1700 0.25 <15 1.0 <-0.065
DL5228B 3.9 20 <23 <1900 0.25 <10 1.0 <-0.060
DL5229B 4.3 20 <22 <2000 0.25 <5 1.0 <+0.055
DL5230B 4.7 20 <19 <1900 0.25 <5 2.0 <+0.030
DL5231B 5.1 20 <17 <1600 0.25 <5 2.0 <+0.030
DL5232B 5.6 20 <11 <1600 0.25 <5 3.0 <+0.038
DL5233B 6.0 20 <7 <1600 0.25 <5 3.5 <+0.038
DL5234B 6.2 20 <7 <1000 0.25 <5 4.0 <+0.045
DL5235B 6.8 20 <5 <750 0.25 <3 5.0 <+0.050
DL5236B 7.5 20 <6 <500 0.25 <3 6.0 <+0.058
DL5237B 8.2 20 <8 <500 0.25 <3 6.5 <+0.062
DL5238B 8.7 20 <8 <600 0.25 <3 6.5 <+0.065
DL5239B 9.1 20 <10 <600 0.25 <3 7.0 <+0.068
DL5240B 10 20 <17 <600 0.25 <3 8.0 <+0.075
DL5241B 11 20 <22 <600 0.25 <2 8.4 <+0.076
DL5242B 12 20 <30 <600 0.25 <1 9.1 <+0.077
DL5243B 13 9.5 <13 <600 0.25 <0.5 9.9 <+0.079
DL5244B 14 9.0 <15 <600 0.25 <0.1 10 <+0.082
DL5245B 15 8.5 <16 <600 0.25 <0.1 11 <+0.082
DL5246B 16 7.8 <17 <600 0.25 <0.1 12 <+0.083
DL5247B 17 7.4 <19 <600 0.25 <0.1 13 <+0.084
DL5248B 18 7.0 <21 <600 0.25 <0.1 14 <+0.085
DL5249B 19 6.6 <23 <600 0.25 <0.1 15 <+0.086
DL5250B 20 6.2 <25 <600 0.25 <0.1 16 <+0.086
DL5251B 22 5.6 <29 <600 0.25 <0.1 17 <+0.087
DL5252B 24 5.2 <33 <600 0.25 <0.1 18 <+0.088
DL5253B 25 5.0 <35 <600 0.25 <0.1 19 <+0.089
DL5254B 27 4.6 <41 <600 0.25 <0.1 21 <+0.090
DL5255B 28 4.5 <44 <600 0.25 <0.1 21 <+0.091
DL5256B 30 4.2 <49 <600 0.25 <0.1 23 <+0.091
DL5257B 33 3.8 <58 <700 0.25 <0.1 25 <+0.092
DL5258B 36 3.4 <70 <700 0.25 <0.1 27 <+0.093
DL5259B 39 3.2 <80 <800 0.25 <0.1 30 <+0.094
DL5260B 43 3.0 <93 <900 0.25 <0.1 33 <+0.095
DL5261B 47 2.7 <105 <1000 0.25 <0.1 36 <+0.095
DL5262B 51 2.5 <125 <1100 0.25 <0.1 39 <+0.096
DL5263B 56 2.2 <150 <1300 0.25 <0.1 43 <+0.096
DL5264B 60 2.1 <170 <1400 0.25 <0.1 46 <+0.097
DL5265B 62 2.0 <185 <1400 0.25 <0.1 47 <+0.097
DL5266B 68 1.8 <230 <1600 0.25 <0.1 52 <+0.097
DL5267B 75 1.7 <270 <1700 0.25 <0.1 58 <+0.098
DL5268B 82 1.5 <330 <2000 0.25 <0.1 62 <+0.098
DL5269B 87 1.4 <370 <2200 0.25 <0.1 68 <+0.099
DL5270B 91 1.4 <400 <2300 0.25 <0.1 69 <+0.099
DL5271B 100 1.3 <500 <2600 0.25 <0.1 76 <+0.11
1) Based on DC-measurement at thermal equilibri um while maintaining the lead temperatur e(T L) at 30℃,
9.5mm (3/8”) from the diode body.
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DL5221B~DL5271B
Characteristics (Tj=25℃ unless otherwise specified)
Figure 1. Zener Voltage versus Zener Current – Vz=1 thru 16 Volts
Figure 2. Zener Voltage versus Zener Current – Vz=15 thru 30 Volts
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DL5221B~DL5271B
Figure 3. Zener Voltage versus Zener Current – Vz=30 thru 75 Volts
Figure 4. Thermal resistance from junction to ambient as a function of pulse duration
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DL5221B~DL5271B
Dimensions in mm
Cathode identification
Φ1.5±0.1
0.3
3.5±0.2
Glass Case
Mini Melf / SOD-80
JEDEC DO-213 AA
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