BZX55B Series Zener diode Features High reliability Applications Voltage stabilization Absolute Maximum Ratings Tj=25 Parameter Test Conditions Symbol Value Unit PV 500 mW Z-current IZ PV/VZ mA Junction temperature Tj 175 Tstg -65~+175 Symbol Value Unit RthJA 350 K/W Power dissipation Type I=4mm TL25 Storage temperature range Maximum Thermal Resistance Tj=25 Parameter Junction ambient Test Conditions I=4mm TL=constant 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 Forward voltage Test Conditions Type IF=200mA Symbol VF Min Typ Max Unit 1.5 V Excel Semiconductor www.excel-semi.com FaxBack +86-512-66607370 Rev. 3f, 1-Jun-2008 1/5 BZX55B Series Type BZX55B 2V0 2V2 2V4 2V7 3V0 3V3 3V6 3V9 4V3 4V7 5V1 5V6 6V2 6V8 7V5 8V2 9V1 10 11 12 13 15 16 18 20 22 24 27 30 33 36 39 43 47 51 56 62 68 75 1) VZnom V 2.0 2.2 2.4 2.7 3.0 3.3 3.6 3.9 4.3 4.7 5.1 5.6 6.2 6.8 7.5 8.2 9.1 10 11 12 13 15 16 18 20 22 24 27 30 33 36 39 43 47 51 56 62 68 75 IZT mA 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 for VZT and V 1.96~2.04 2.15~2.25 2.35~2.45 2.64~2.76 2.94~3.06 3.24~3.36 3.52~3.68 3.82~3.98 4.22~4.38 4.6~4.8 5.0~5.2 5.48~5.72 6.08~6.32 6.66~6.94 7.35~7.65 8.04~8.36 8.92~9.28 9.8~10.2 10.78~11.22 11.76~12.24 12.74~13.26 14.7~15.3 15.7~16.3 17.64~18.36 19.6~20.4 21.55~22.45 23.5~24.5 26.4~27.6 29.4~30.6 32.4~33.6 35.3~36.7 38.2~39.8 42.1~43.9 46.1~47.9 50~52 54.9~57.1 60.8~63.2 66.6~69.4 73.5~76.5 rzjT <100 <100 <85 <85 <85 <85 <85 <85 <75 <60 <35 <25 <10 <8 <7 <7 <10 <15 <20 <20 <26 <30 <40 <50 <55 <55 <80 <80 <80 <80 <80 <90 <90 <110 <125 <135 <150 <200 <250 rzjK at <600 <600 <600 <600 <600 <600 <600 <600 <600 <600 <550 <450 <200 <150 <50 <50 <50 <70 <70 <90 <110 <110 <170 <170 <220 <220 <220 <220 <220 <220 <220 <500 <600 <700 <700 <1000 <1000 <1000 <1500 IZK mA 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 IR and IR at A A1) <150 <300 <150 <300 <50 <100 <10 <50 <4 <40 <2 <40 <2 <40 <2 <40 <1 <20 <0.5 <10 <0.1 <2 <0.1 <2 <0.1 <2 <0.1 <2 <0.1 <2 <0.1 <2 <0.1 <2 <0.1 <2 <0.1 <2 <0.1 <2 <0.1 <2 <0.1 <2 <0.1 <2 <0.1 <2 <0.1 <2 <0.1 <2 <0.1 <2 <0.1 <2 <0.1 <2 <0.1 <2 <0.1 <2 <0.1 <5 <0.1 <5 <0.1 <5 <0.1 <10 <0.1 <10 <0.1 <10 <0.1 <10 <0.1 <10 VR V 1 1 1 1 1 1 1 1 1 1 1 1 2 3 5 6.2 6.8 7.5 8.2 9.1 10 11 12 13 15 16 18 20 22 24 27 30 33 36 39 43 47 51 56 TKVZ %/K -0.09~-0.06 -0.09~-0.06 -0.09~-0.06 -0.09~-0.06 -0.08~-0.05 -0.08~-0.05 -0.08~-0.05 -0.08~-0.05 -0.06~-0.03 -0.05~+0.02 -0.02~+0.02 -0.05~+0.05 0.03~0.06 0.03~0.07 0.03~0.07 0.03~0.08 0.03~0.09 0.03~0.1 0.03~0.11 0.03~0.11 0.03~0.11 0.03~0.11 0.03~0.11 0.03~0.11 0.03~0.11 0.04~0.12 0.04~0.12 0.04~0.12 0.04~0.12 0.04~0.12 0.04~0.12 0.04~0.12 0.04~0.12 0.04~0.12 0.04~0.12 0.04~0.12 0.04~0.12 0.04~0.12 0.04~0.12 at Tj=150 Excel Semiconductor www.excel-semi.com FaxBack +86-512-66607370 Rev. 3f, 1-Jun-2008 2/5 BZX55B Series Characteristics (Tj=25 unless otherwise specified) Figure 1. Thermal Resistance vs. Lead length Figure 4. Typical Change of Working Voltage Vs. Junction Temperature Figure 2. Total Power Dissipation vs. Ambient Figure 5. Temperature Coefficient of Vz vs. Z-Voltage Temperature Figure 3. Typical Change of Working Voltage under Figure 6. Diode Capacitance vs. Z-voltage Operating Conditions at Tamb=25 Excel Semiconductor www.excel-semi.com FaxBack +86-512-66607370 Rev. 3f, 1-Jun-2008 3/5 BZX55B Series Figure 7. Forward Current vs. Forward Voltage Figure 9. Z-Current vs. Z-Voltage Figure 8. Z-Current vs. Z-Voltage Figure 10. Differential Z-Resistance Vz vs. Z-Voltage Figure 11. Thermal Response Excel Semiconductor www.excel-semi.com FaxBack +86-512-66607370 Rev. 3f, 1-Jun-2008 4/5 BZX55B Series Dimensions in mm Cathode identification Type No. 0.55 max. BZ X 55B Cathode 2.0 max. 26 min. 4.2 max. Anode 26 min. Standard Glass Case JEDEC DO-35 Marking BZX 5 5B 5V1 Excel Semiconductor www.excel-semi.com FaxBack +86-512-66607370 Rev. 3f, 1-Jun-2008 5/5