BZX55C Series Voltage Range 2.4 to 75 Volts Zener diode DO-35 Features 1.High reliability Applications 1.02(26.0) MIN Voltage stabilization .079(2.0) MAX Construction Silicon epitaxial planer .165(4.2) MAX Absoluto Maximum Ratings 0 1.02(26.0) MIN Tj=25 C .020(.52) TYP Dimensions in inches and (millimeters) Symbol Value Unit PD 500 mW Z-current lz PD/Vz mA Junction temperature Tj 175 0C Tstg -65~+175 0C Parameter Test Conditions Type I=4mm TL*25 C 0 Power dissipation Storage temperature range Maximum Thermal Resistance Tj=250C Parameter Junction ambient Test Condltions Symbol Value Unit I=4mm TL=constant RthJA 500 K/W Electrcal Characteristics Tj=250C Parameter Forward voltage Test Conditions lF=200mA Type Symbol VF Min Typ Max Unit 1.5 V Type BZX55C 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 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 lzt for Vzr and mA V 5 2.28~2.56 5 2.5~2.9 5 2.8~3.2 5 3.1~3.5 5 3.4~3.8 5 3.7~4.1 5 4.0~4.6 5 4.4~5.0 5 4.8~5.4 5 5.2~6.0 5 5.8~6.6 5 6.4~7.2 5 7.0~7.9 5 7.7~8.7 5 8.5~9.6 5 9.4~10.6 5 10.4~11.6 5 11.4~12.7 5 12.4~14.1 5 13.8~15.6 5 15.3~17.1 5 16.8~19.1 5 18.8~21.2 5 20.8~23.3 5 22.8~25.6 5 25.1~28.9 5 28~32 5 31~35 5 34~38 2.5 37~41 2.5 40~46 2.5 44~50 2.5 48~54 2.5 52~60 2.5 58~66 2.5 64~72 2.5 70~79 1)Tighter tolerances available request: BZX55A...*1% of Vznom BZ55B...*2% of Vznom 2)at Tj=1500C r * <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 rzk 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 lzk 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 lR at uA <50 <10 <4 <2 <2 <2 <1 <0.5 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 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 BZX55C Series Characteristics (Tj=250C unless otherwise specified) 600 1000 500 Tj=25 C *Vz-Voltage Change (mV) Ptot-Total Dissipation (mW) o 400 300 200 100 Iz=5mA 10 100 0 1 0 40 80 120 160 200 0 5 0 Tamb-Ambient Temperature Temperature ( C) 10 15 20 25 Vz-Z-Voltage (V) Figure 2. Typical Change of Working Voltage under Operating Conditions at Tamb=25-C Figure 1.Total Power Dissipation vs. Ambient Temperature 1.3 15 0 1.2 -4 -4 TKvz=10x10 /K Vzm-Relative Voltage Change -4 8x10 /K -4 6x10 /K 1.1 -4 4x10 /K -4 2x10 /K 1.0 0 -4 -2x10 /K -4 -4x10 /K 0.9 0.8 10 5 Iz=5mA 0 -5 -60 0 60 120 180 240 0 Tj-Junction Temperature Temperature ( C) 150 VR=2V 0 Tj=25 C 100 50 0 5 10 15 20 Vz-Z-Voltage (V) Figure 5.Diode Capacitance vs.Z-Voltage 10 20 30 40 Figure 4. Temperature Conefficient of Vz vs. Z-Volltage 200 0 0 Vz-Z-Voltage (V) Figure 3.Typical of Working Voltage vs. Junction Temperature CD-Diode Capacitance (pF) TKvz-Temperature Coefficient of Vz(10 /K) Vzm=Vz/Vz(25 C) 25 50 BZX55C Series 100 100 10 80 0 Iz-Z-current (mA) IF-Forward Current (mA) Tj=25 C 1 0.1 60 40 0.01 20 0.001 0 0.2 0.4 0.6 0.8 0 1.0 0 5 VF-Forward Voltage (V) 8 12 Vz-Z-Voltage (V) 16 20 Figure 7. Z-Current vs. Z-Voltage Figure 6. Forward Current vs.Forward Voltage 1000 50 Iz=1mA Vzm-Relative Voltage Change 40 Ptot=500mW 0 Tamb=25 C rz-Differentical Z-Resistance (*) 100 30 20 10 5mA 10mA 10 1 0 0 15 20 25 Vz- Z- Voltage (V) 30 35 5 10 15 Figure 9. Differential Z-Resistance vs. Z-Volltage Figure 8.Z-Current vs.Z-Voltage 1000 tp/T=0.5 100 tp/T=0.2 CD-Diode Capacitance (pF) Single Pulse RthJA=300K/W *T=Tjmax-Tamb 10 tp/T=0.02 tp/T=0.1 tp/T=0.01 tp/T=0.05 iZM=(-Vz+(Vz2+4rzj x*T/Zthp)1/2)/(2rzj) 1 -1 10 0 10 Figure 10. Thermal Response 20 Vz-Z-Voltage (V) 1 10 tp- Pulse Length (ms) 2 10 25