CZRA4740 CZRA4764 DO-214AC MIL-STD-750 EIA-481 MDS0208021B

SURFACE MOUNT ZENER DIODE SMD DIODE SPECIALIST CZRA4740 thru CZRA4764 Voltage: 10-100 Volts Power: 1.0 Watts FEATURES - For

COMCHIP SURFACE MOUNT ZENER DIODE SMD DIODE SPECIALIST CZRA4740 CZRA4740 thru CZRA4764 CZRA4764 Voltage: 10-100 Volts Power: 1.0 Watts FEATURES - For surface mounted applications in order to optimize board space - Low profile package - Built-in strain relief - Glass passivated junction - Low inductance - Typical IR less than 5.0uA above 11V - High temper ature soldering : 260°C / 10 seconds at terminals - Plastic package has Underwriters Laboratory Flammability Classification 94V-O DO-214AC DO-214AC (SMA) 0.067(1.70) 0.051(1.29) 0.110(2.79) 0.086(2.18) 0.180(4.57) 0.160(4.06) U 0.012(0.31) 0.006(0.15) 0.091(2.31) 0.067(1.70) 0.059(1.50) 0.035(0.89) MECHANICAL DATA Case: JEDEC DO-214AC DO-214AC, Molded plastic over passivated junction Terminals: Solder plated, solderable per MIL-STD-750 MIL-STD-750, method 2026 Polarity: Color band denotes positive end(cathode) Standard Packaging: 12mm tape(EIA-481 EIA-481) Weight: 0.002 ounce, 0.064 gram 0.209(5.31) 0.185(4.70) 0.008(0.20) 0.004(0.10) Dimensionsininchesand(millimeters) Maximum Ratings and Electrical Characterics Ratings at 25°C ambient temperature unless otherwise specified. Peak Pulse Power Dissipation on T A= 50°C (Note A) Derate above 50°C Peak forward Surge Current 8.3ms single half sine-wave superimposed on rated load(JEDEC Method) (Note B) Operating Junction and Storage Temperature Range SYMBOL PD VALUE 1.0 6.67 IFSM 10 UNITS Watts mW/°C Amps TJ,TSTG -55 to +150 °C NOTES: 2 A. Mounted on 5.0mm (.013mm thick) land areas. B. Measured on 8.3ms, single half sine-wave or equivalent square wave, duty cycle = 4 pulses per minute maximum. MDS0208021B MDS0208021B Comchip Technology Corporation · Tel: 510-657-8671 · Fax: 510-657-8921 · www.comchiptech.com Page 1 SURFACE MOUNT ZENER DIODE MDS0208021B MDS0208021B COMCHIP SMD DIODE SPECIALIST Comchip Technology Corporation · Tel: 510-657-8671 · Fax: 510-657-8921 · www.comchiptech.com Page 2 COMCHIP SURFACE MOUNT ZENER DIODE SMD DIODE SPECIALIST RATING AND CHARACTERISTICS CURVES PD, MAXIMUM POWER DISSIPATION (WATTS) CZRA4740 CZRA4740 THRU CZRA4764 CZRA4764 1.25 1.0 L = LEAD LENTGH TO HEAT SINK 0.75 0.50 0.25 0 0 20 40 60 80 100 120 140 160 180 200 TL, LEAD TEMPERATURE 100 +12 +10 +8.0 +6.0 +4.0 +2.0 0 -2.0 -4.0 2 VZ @ IZT RANGE 3 4 5 6 7 8 9 10 11 12 VZ, TEMPERATURE COEFFICIENT(mV/W) VZ, TEMPERATURE COEFFICIENT (mV/°C) Fig. 1-POWER TEMPERATURE DERATING CURVE 70 50 30 20 10 RANGE VZ @ IZT 7.0 5.0 3.0 2.0 1.0 10 20 VZ, ZENER VOLTAGE (VOLTS) 30 50 70 100 VZ, ZENER VOLTAGE (VOLTS) Fig. 2-TEMPERATURE COEFFICIENTS (-55°C TO +150°C TEMPERATURE RANGE; 90% OF THE UNITS ARE IN THE RANGES INDICATED.) 150 125 100 75 50 25 0 0 .1 .2 .3 .4 .5 .6 .7 .8 .9 1.0 L, LEAD LENGTH TO HEAT SINK (INCKES) Fig.3-TYPICAL THERMAL RESISTANCE VERSUS LEAD LENGTH MDS0208021B MDS0208021B VZ, TEMPERATURE COEFFICIENT (mV/w) JL, JUNCTION TO LEAD THERMAL RESISTANCE (°C/W) 175 +6.0 NOTE:BELOW 3 VOLTS AND ABOVE 8 CHANGES IN ZENER CURRENT DO AFFECT TEMPERATURE +4.0 20mA +2.0 0 0.01mA 1.0mA -2.0 -4.0 3 4 5 VZ @ IZT TA = 25°C 6 7 8 VZ, ZENER VOLTAGE (VOLTS) Fig. 4-EFFECT OF ZENER CURRENT Comchip Technology Corporation · Tel: 510-657-8671 · Fax: 510-657-8921 · www.comchiptech.com Page3 COMCHIP SURFACE MOUNT ZENER DIODE SMD DIODE SPECIALIST RATING AND CHARACTERISTICS CURVES CZRA4740 CZRA4740 THRU CZRA4764 CZRA4764 Ppk, peak surge power (watts) 100 11V-91V NON-REPETITIVE 70 50 5% DUTY CYCLE 30 20 10 0.8V-10V NON-REPETITIVE RECTANGULAR WAVEFORM TJ = 25°C PRIOR TO INITIAL PULSE 10% DUTY CYCLE 7.0 5.0 3.0 20% DUTY CYCLE 2.0 1.0 0.01 0.02 0.05 0.1 0.2 0.5 1.0 2.0 5.0 10 20 50 100 200 500 PW, PULSE WIDTH This graph represents 90 percentile data point. For worst-case design characteristics, multiply surge power by 2/3 Fig. 5-MAXIMUM SURGE POWER Zz, dynamic impedance (ohms) Zz, dynamic impedance (ohms) 1000 TJ = 25°C IZ(ms) = 0.1IZ(dc) f = 60Hz 500 200 100 47V 50 27V 20 10 5.0 0.8V 2.0 1.0 0.1 0.2 0.5 1.0 2.0 5.0 10 20 50 100 1000 700 500 I = 1.0mA Z 200 100 5.0mA 70 50 20mA 20 10 7 5 2 1 1.0 2.0 3.0 TJ = 25°C IZ(ms) = 0.1IZ(dc) f = 60Hz 5.0 7.0 10 20 30 50 70 100 IZ, ZENER CURRENT (mA) IZ, ZENER CURRENT (mA) Fig. 6-EFFECT OF ZENER CURRENT ON ZENER IMPEDANCE Fig. 7-EFFECT OF ZENER VOLTAGE ON ZENER IMPEDANCE MDS0208021B MDS0208021B Comchip Technology Corporation · Tel: 510-657-8671 · Fax: 510-657-8921 · www.comchiptech.com Page 4