Formosa MS LL55C Series Zener diode Features 1. Small surface mounting type 2. High reliability Applications Voltage stabilization Construction Silicon epitaxial planar Absolute Maximum Ratings Tj=25? Parameter Power dissipation Z-current Junction temperature Storage temperature range Test Conditions RthJA? 300K/W Type Symbol PV IZ Tj Tstg Value 500 PV/VZ 175 -65~+175 Unit mW mA ? ? Value 500 Unit K/W Maximum Thermal Resistance Tj=25? Parameter Junction ambient Test Conditions on PC board 50mmx 50mmx 1.6mm Symbol RthJA Electrical Characteristics Tj=25? Parameter Forward voltage Test Conditions IF =200mA Formosa MS Type Symbol VF Min Typ Max 1.5 Unit V 1 Formosa MS Type LL55C. 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 for VZT and 1) 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 rzjT O <85 <85 <90 <90 <90 <90 <90 <80 <60 <40 <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 O <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 IZ K 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 VR 2) A ? A V <50 <100 1 <10 <50 1 <4 <40 1 <2 <40 1 <2 <40 1 <2 <40 1 <1 <20 1 <0.5 <10 1 <0.1 <2 1 <0.1 <2 1 <0.1 <2 2 <0.1 <2 3 <0.1 <2 5 <0.1 <2 6.2 <0.1 <2 6.8 <0.1 <2 7.5 <0.1 <2 8.2 <0.1 <2 9.1 <0.1 <2 10 <0.1 <2 11 <0.1 <2 12 <0.1 <2 13 <0.1 <2 15 <0.1 <2 16 <0.1 <2 18 <0.1 <2 20 <0.1 <2 22 <0.1 <2 24 <0.1 <2 27 <0.1 <5 30 <0.1 <5 33 <0.1 <5 36 <0.1 <10 39 <0.1 <10 43 <0.1 <10 47 <0.1 <10 51 <0.1 <10 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 Tighter tolerances available request: LL55A... 1% of VZnom LL55B... 2% of VZnom LL55F... 3% of VZnom 2) LL55C Series at Tj=150? Formosa MS 2 Formosa MS LL55C Series Characteristics (Tj=25? unless otherwise specified) Formosa MS 3 Formosa MS LL55C Series Formosa MS 4 Formosa MS LL55C Series Dimensions in mm Cathode band Glass Case Mini Melf / SOD 80 JEDEC DO 213 AA Formosa MS 5