BZX55B Series Zener diode Features Vz-tolerance 2% Applications Voltage stabilization Construction Silicon epitaxial planar 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 Electrical Characteristics Tj=25 Parameter Forward voltage Test Conditions IF=200mA Type Symbol VF Min Typ Max Unit 1.5 V BZX55B Series Type BZX55B 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 2.4 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 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 for VZT and rzjT 1) V 2.35~2.45 <85 2.64~2.76 <85 2.94~3.06 <85 3.24~3.36 <85 3.52~3.68 <85 3.82~3.98 <85 4.22~4.38 <75 4.6~4.8 <60 5.0~5.2 <35 5.48~5.72 <25 6.08~6.32 <10 6.66~6.94 <8 7.35~7.65 <7 8.04~8.36 <7 8.92~9.28 <10 9.8~10.2 <15 10.78~11.22 <20 11.76~12.24 <20 12.74~13.26 <26 14.7~15.3 <30 15.7~16.3 <40 17.64~18.36 <50 19.6~20.4 <55 21.55~22.45 <55 23.5~24.5 <80 26.4~27.6 <80 29.4~30.6 <80 32.4~33.6 <80 35.3~36.7 <80 38.2~39.8 <90 42.1~43.9 <90 46.1~47.9 <110 50~52 <125 54.9~57.1 <135 60.8~63.2 <150 66.6~69.4 <200 73.5~76.5 <250 Tighter tolerances available request: BZX55A... 1% of VZnom BZX55C... 5% of VZnom 2) at Tj=150 rzjK at <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 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 IR and IR at 2) A A <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 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 -0.08~-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 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 Temperature Figure 5. Temperature Coefficient of Vz vs. Z-Voltage Figure 3. Typical Change of Working Voltage under Operating Conditions at Tamb=25 Figure 6. Diode Capacitance vs. Z-voltage 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 BZX55B Series Dimensions in mm Cathode identification Type No. 3) 0.55 max. BZX 5 5B 5 V1 Cathode 2.0 max. 26 min. 4.2 max. Standard Glass Case JEDEC DO 35 3) Type No. BZX55 B 5V1 Series name Tighter tolerances available request: A ------1% of VZnom B ------2% of VZnom C ------5% of VZnom Zener Voltage (VZnom), for example: 5V1 ------ 5.1V 12 ------ 12V Anode 26 min.