BZX79C 2V4PT CHENMKO ENTERPRISE CO.,LTD THRU AXIAL LEAD SILICON PLANAR POWER ZENER DIODES VOLTAGE RANGE 2.4V TO 51V BZX79C 51PT FEATURE * * * * * High temperature soldering type. ESD rating of class 3(>16 kV) per human body model. Silicon planar zener diodes. Silcon-oxide passivated junction. Low temperature coefficient voltage DO-35 .022 (0.56) DIA. .018 (0.46) MECHANICAL * * * * * Axial-lead hermetically sealed package. DO-35 Packaging. Cathode indicated by polarity band. Mounting position: Any. Weight: Approx. 0.13g. 1.02 (26.0) MIN. .165 (4.2) MAX. .079 (2.0) MAX. DIA. 1.02 (26.0) MIN. MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS Ratings at 25oC ambient temperature unless otherwise specified. DO-35 Dimensions in inches and (millimeters) MAXIMUM RATINGES ( At TA = 25oC unless otherwise noted ) RATINGS SYMBOL VALUE UNITS - - - PD 500 mW TJ +200 o C -65 to +200 o C Zener Current ( see Table "Characteristics" ) Max. Steady State Power Dissipation @TL=75oC,Lead Length=3/8" Max. Operating Temperature Range Storage Temperature Range TSTG ELECTRICAL CHARACTERISTICS ( At TA = 25oC unless otherwise noted ) CHARACTERISTICS Thermal Resistance Junction to Ambient Max. Instantaneous Forward Voltage at IF= 10mA SYMBOL R JA VF MIN. TYP. MAX. - - 300 o - - 1.0 Volts NOTES : 1. The numbers listd have a standaerd tolerance on the normal zener voltage of +5%. 2. The zener impedance is derived from 1KHz AC voltage, which results when an AC current having an RMS value equal to 10% of DC zener current (IZT or IZK) is superimposed on IZT or IZK. Zener impedance is measured at two points to insure a sharp knee on the breakdown curve to eliminate unstable units. 3. Valid provided that electrodes at distance of 8mm from case are kept ambient temperature. 4. Measured under thermal equilibrium and DC test conditions. 5. The rating listd in the electrical characteristics table is maximum peak, non-repetitive, reverse surge current of 1/2 square wave or equivalent sine wave pulse of 1/120 second duration superimposed on the test current, IZT. 6. Measured at IZT= 2mA and IZK= 0.5mA. UNITS C/W 2001-6 ELECTRICAL CHARACTERISTIC ( BZX79C 2V4PT THRU BZX79C 51PT ) TYPE Nominal Zener voltage at IZT VZ (V) Zener Voltage Range Test current Zener Voltage at IZT (mA) VZ (V) Maximum Zener impedance ZZT at IZT ( ) ZZK ( ) at IZK (mA) Maximum Type reverse leakage current temperature coefficient at IR at VR TA= 25oC o (uA) (V) VZ (%/ C) Maximum regulator current at TA= 50oC IZM (mA) BZX79C 2V4PT 2.4 5 2.28 ~ 2.56 100 600 1 50 1 -0.08~-0.06 167 BZX79C 2V7PT 2.7 5 2.5 ~ 2.9 100 600 1 20 1 -0.08~-0.06 135 BZX79C 3V0PT 3.0 5 2.8 ~ 3.2 95 600 1 10 1 -0.08~-0.06 125 BZX79C 3V3PT 3.3 5 3.1 ~ 3.5 95 600 1 5 1 -0.08~-0.05 115 BZX79C 3V6PT 3.6 5 3.4 ~ 3.8 90 600 1 5 1 -0.08~-0.04 105 BZX79C 3V9PT 3.9 5 3.7 ~ 4.1 90 600 1 3 1 -0.07~-0.03 95 BZX79C 4V3PT 4.3 5 4.0 ~ 4.6 90 500 1 3 1 -0.04~-0.01 90 BZX79C 4V7PT 4.7 5 4.4 ~ 5.0 80 480 1 3 1 -0.03~+0.01 85 BZX79C 5V1PT 5.1 5 4.8 ~ 5.4 60 400 1 2 1 -0.02~+0.05 80 BZX79C 5V6PT 5.6 5 5.2 ~ 6.0 40 150 1 1 1 -0.01~+0.06 70 BZX79C 6V2PT 6.2 5 5.8 ~ 6.6 10 80 1 3 2 0.015~0.06 64 BZX79C 6V8PT 6.8 5 6.4 ~ 7.2 15 80 1 2 3 0~0.07 58 BZX79C 7V5PT 7.5 5 7.0 ~7.9 15 80 1 1 5 0.01~0.08 53 BZX79C 8V2PT 8.2 5 7.7 ~ 8.7 15 200 1 0.7 6 0.01~0.09 47 BZX79C 9V1PT 9.1 5 8.5 ~ 9.6 15 100 1 0.5 7 0.01~0.09 43 BZX79C 10PT 10 5 9.4 ~ 10.6 20 150 1 0.2 7.5 0.02~0.10 40 BZX79C 11PT 11 5 10.4 ~ 11.6 20 150 1 0.1 8.5 0.03~0.11 36 BZX79C 12PT 12 5 11.4 ~ 12.7 25 150 1 0.1 9 0.03~0.11 32 BZX79C 13PT 13 5 12.4 ~ 14.1 30 170 1 0.1 10 0.03~0.11 29 BZX79C 15PT 15 5 13.8 ~ 15.6 30 200 1 0.05 11 0.03~0.11 27 BZX79C 16PT 16 5 15.3 ~17.1 40 200 1 0.05 12 0.03~0.11 24 BZX79C 18PT 18 5 16.8 ~ 19.1 45 225 1 0.05 14 0.03~0.11 21 BZX79C 20PT 20 5 18.8 ~ 21.2 55 225 1 0.5 15 0.03~0.11 20 BZX79C 22PT 22 5 20.8 ~ 23.3 55 250 1 0.05 17 0.03~0.11 18 BZX79C 24PT 24 5 22.8 ~ 25.6 70 250 1 0.05 18 0.04~0.12 16 BZX79C 27PT 27 5 25.1 ~ 28.9 80(1) 300(2) 1 0.05 20 0.04~0.12 14 BZX79C 30PT 30 5 28 ~ 32 80(1) 300(2) 1 0.05 22 0.04~0.12 13 BZX79C 33PT 33 5 31 ~ 35 80(1) 325(2) 1 0.05 24 0.04~0.12 12 BZX79C 36PT 36 5 34 ~ 38 90(1) 350(2) 1 0.05 27 0.04~0.12 11 BZX79C 39PT 39 5 37 ~ 41 130(1) 350(2) 1 0.05 28 0.04~0.12 10 BZX79C 43PT 43 5 40 ~ 46 150(1) 375(2) 1 0.05 32 0.04~0.12 9.2 BZX79C 47PT 47 5 44 ~ 50 170(1) 375(2) 1 0.05 35 0.04~0.12 7.8 BZX79C 51PT 51 5 48 ~ 54 180(1) 400(2) 1 0.05 38 0.04~0.12 21 NOTES: 1. at IZT= 2.0mA. 2. at IZK= 0.5mA. RATING CHARACTERISTIC CURVE ( BZX79C 2V4PT THRU BZX79C 51PT )