TZQ5221B~TZQ5271B
Excel Semiconductor
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Zener diode
Features
1. High reliability
2. Very sharp reverse characteristi c
3. Low reverse current level
4. VZ-tolerance±5%
Applications
Voltage st abili zation
Absolute Maximum Ratings
Tj=25℃ Parameter Test Conditions Type Symbol Value Unit
Power dissipation Tamb≤75℃ P
V 500 mW
Z-current IZ PV/VZ mA
Junction temperature Tj 200 ℃
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 ratings 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
TZQ5221B~TZQ5271B
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VZnom1) IZT for r
zjT rzjK at I
ZK IR at V
R TKVZ
Type V mA Ω Ω mA μA V %/K
TZQ5221B 2.4 20 <30 <1200 0.25 <100 1.0 <-0.085
TZQ5222B 2.5 20 <30 <1250 0.25 <100 1.0 <-0.085
TZQ5223B 2.7 20 <30 <1300 0.25 <75 1.0 <-0.080
TZQ5224B 2.8 20 <30 <1400 0.25 <75 1.0 <-0.080
TZQ5225B 3.0 20 <29 <1600 0.25 <50 1.0 <-0.075
TZQ5226B 3.3 20 <28 <1600 0.25 <25 1.0 <-0.070
TZQ5227B 3.6 20 <24 <1700 0.25 <15 1.0 <-0.065
TZQ5228B 3.9 20 <23 <1900 0.25 <10 1.0 <-0.060
TZQ5229B 4.3 20 <22 <2000 0.25 <5 1.0 <+0.055
TZQ5230B 4.7 20 <19 <1900 0.25 <5 2.0 <+0.030
TZQ5231B 5.1 20 <17 <1600 0.25 <5 2.0 <+0.030
TZQ5232B 5.6 20 <11 <1600 0.25 <5 3.0 <+0.038
TZQ5233B 6.0 20 <7 <1600 0.25 <5 3.5 <+0.038
TZQ5234B 6.2 20 <7 <1000 0.25 <5 4.0 <+0.045
TZQ5235B 6.8 20 <5 <750 0.25 <3 5.0 <+0.050
TZQ5236B 7.5 20 <6 <500 0.25 <3 6.0 <+0.058
TZQ5237B 8.2 20 <8 <500 0.25 <3 6.5 <+0.062
TZQ5238B 8.7 20 <8 <600 0.25 <3 6.5 <+0.065
TZQ5239B 9.1 20 <10 <600 0.25 <3 7.0 <+0.068
TZQ5240B 10 20 <17 <600 0.25 <3 8.0 <+0.075
TZQ5241B 11 20 <22 <600 0.25 <2 8.4 <+0.076
TZQ5242B 12 20 <30 <600 0.25 <1 9.1 <+0.077
TZQ5243B 13 9.5 <13 <600 0.25 <0.5 9.9 <+0.079
TZQ5244B 14 9.0 <15 <600 0.25 <0.1 10 <+0.082
TZQ5245B 15 8.5 <16 <600 0.25 <0.1 11 <+0.082
TZQ5246B 16 7.8 <17 <600 0.25 <0.1 12 <+0.083
TZQ5247B 17 7.4 <19 <600 0.25 <0.1 13 <+0.084
TZQ5248B 18 7.0 <21 <600 0.25 <0.1 14 <+0.085
TZQ5249B 19 6.6 <23 <600 0.25 <0.1 15 <+0.086
TZQ5250B 20 6.2 <25 <600 0.25 <0.1 16 <+0.086
TZQ5251B 22 5.6 <29 <600 0.25 <0.1 17 <+0.087
TZQ5252B 24 5.2 <33 <600 0.25 <0.1 18 <+0.088
TZQ5253B 25 5.0 <35 <600 0.25 <0.1 19 <+0.089
TZQ5254B 27 4.6 <41 <600 0.25 <0.1 21 <+0.090
TZQ5255B 28 4.5 <44 <600 0.25 <0.1 21 <+0.091
TZQ5256B 30 4.2 <49 <600 0.25 <0.1 23 <+0.091
TZQ5257B 33 3.8 <58 <700 0.25 <0.1 25 <+0.092
TZQ5258B 36 3.4 <70 <700 0.25 <0.1 27 <+0.093
TZQ5259B 39 3.2 <80 <800 0.25 <0.1 30 <+0.094
TZQ5260B 43 3.0 <93 <900 0.25 <0.1 33 <+0.095
TZQ5261B 47 2.7 <105 <1000 0.25 <0.1 36 <+0.095
TZQ5262B 51 2.5 <125 <1100 0.25 <0.1 39 <+0.096
TZQ5263B 56 2.2 <150 <1300 0.25 <0.1 43 <+0.096
TZQ5264B 60 2.1 <170 <1400 0.25 <0.1 46 <+0.097
TZQ5265B 62 2.0 <185 <1400 0.25 <0.1 47 <+0.097
TZQ5266B 68 1.8 <230 <1600 0.25 <0.1 52 <+0.097
TZQ5267B 75 1.7 <270 <1700 0.25 <0.1 58 <+0.098
TZQ5268B 82 1.5 <330 <2000 0.25 <0.1 62 <+0.098
TZQ5269B 87 1.4 <370 <2200 0.25 <0.1 68 <+0.099
TZQ5270B 91 1.4 <400 <2300 0.25 <0.1 69 <+0.099
TZQ5271B 100 1.3 <500 <2600 0.25 <0.1 76 <+0.11
1) Based on DC-measurement at thermal equilibrium while maintaining the lead temperature(TL) at 30℃,
9.5mm (3/8”) from the diode body.
TZQ5221B~TZQ5271B
Excel Semiconductor
www.excel-semi.com Rev. 3e, 1-Nov-2006
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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
TZQ5221B~TZQ5271B
Excel Semiconductor
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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
TZQ5221B~TZQ5271B
Excel Semiconductor
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FaxBack +86-512-66607370 5/5
Dimensions in mm
Glass Case
Quadro MELF
Similar to JEDEC DO-213 AA
Cathode identification
3.5±0.2
0.3
Φ1.5±0.1
1.7
Glass
