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SURFACE MOUNT ZENER DIODE
COMCHIP
SMD DIODE SPECIALIST
CZRA4740 thru 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
U
DO-214AC (SMA)
0.067(1.70) 0.051(1.29) 0.180(4.57) 0.160(4.06)
0.110(2.79) 0.086(2.18)
0.012(0.31) 0.006(0.15) 0.091(2.31) 0.067(1.70) 0.059(1.50) 0.035(0.89) 0.008(0.20) 0.004(0.10)
MECHANICAL DATA
Case: JEDEC DO-214AC, Molded plastic over passivated junction Terminals: Solder plated, solderable per MIL-STD-750, method 2026 Polarity: Color band denotes positive end(cathode) Standard Packaging: 12mm tape(EIA-481) Weight: 0.002 ounce, 0.064 gram
0.209(5.31) 0.185(4.70)
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
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.
SYMBOL PD
IFSM TJ,TSTG
VALUE 1.0 6.67
10
-55 to +150
UNITS Watts mW/°C Amps
°C
MDS0208021B
Comchip Technology Corporation • Tel: 510-657-8671 • Fax: 510-657-8921 • www.comchiptech.com
Page 1
SURFACE MOUNT ZENER DIODE
ELECTRICAL CHARACTERISTICS
(TA=25°C unless otherwise noted) (VF=1.2Volts Max, IF=200mA for all types.)
COMCHIP
SMD DIODE SPECIALIST
Device (Note 1.)
Nominal Zener Voltage VZ @ IZT (Note 2, 3)
(Volts)
Test current IZT
(mA)
Maximum Zener Impedance (Note 4) ZZT @ IZT ZZK @ IZK
(Ohms) (Ohms)
Leakage Current IR
(uA)
Surge Current @TA = 25°C (Note 5) Ir - mA 454 414 380 344 304 285 250 225 205 190 170 150 135 125 115 110 95 90 80 70 65 60 55 50 45
IZK
(mA)
VR
(Volts)
CZRA4740 CZRA4741 CZRA4742 CZRA4743 CZRA4744 CZRA4745 CZRA4746 CZRA4747 CZRA4748 CZRA4749 CZRA4750 CZRA4751 CZRA4752 CZRA4753 CZRA4754 CZRA4755 CZRA4756 CZRA4757 CZRA4758 CZRA4759 CZRA4760 CZRA4761 CZRA4762 CZRA4763 CZRA4764
NOTE:
10 11 12 13 15 16 18 20 22 24 27 30 33 36 39 43 47 51 56 62 68 75 82 91 100
25 23 21 19 17 15.5 14 12.5 11.5 10.5 9.5 8.5 7.5 7 6.5 6 5.5 5 4.5 4 3.7 3.3 3 2.8 2.5
7 8 9 10 14 16 20 22 23 25 35 40 45 50 60 70 80 95 110 125 150 175 200 250 350
700 700 700 700 700 700 750 750 750 750 750 1000 1000 1000 1000 1500 1500 1500 2000 2000 2000 2000 3000 3000 3000
0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25
10 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5
7.6 8.4 9.1 9.9 11.4 12.2 13.7 15.2 16.7 18.2 20.6 22.8 25.1 27.4 29.7 32.7 35.8 38.8 42.6 47.1 51.7 56 62.2 69.2 76
1. Tolerance and Type Number Designation. The type numbers listed have a standard tolerance on the nominal zener voltage of ± 5%. 2. Specials Available Include: A. Nominal zener voltages between the voltages shown and tighter voltage tolerances. B. Matched sets. 3. Zener Voltage (VZ) Measurement. Guarantees the zener voltage when measured at 90 seconds while maintaining the lead temperature (TL) at 30°C ± 1°C, from the diode body. 4. Zener Impedance (ZZ) Derivation. The zener impedance is derived from the 60 cycle ac voltage, which results when an ac current having an rms value equal to 10% of the dc zener current (IZT or IZK) is superimposed on IZT or IZK. 5. Surge Current (Ir) Non-Repetitive. The rating listed 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, per JEDEC registration; however, actual device capability is as described in Figure 5.
MDS0208021B
Comchip Technology Corporation • Tel: 510-657-8671 • Fax: 510-657-8921 • www.comchiptech.com
Page 2
SURFACE MOUNT ZENER DIODE
RATING AND CHARACTERISTICS CURVES CZRA4740 THRU CZRA4764
PD, MAXIMUM POWER DISSIPATION (WATTS)
COMCHIP
SMD DIODE SPECIALIST
1.25 1.0 0.75 0.50 0.25 0 0
L = LEAD LENTGH TO HEAT SINK
20
40
60 80 100 120 140 160 180 200
TL, LEAD TEMPERATURE
Fig. 1-POWER TEMPERATURE DERATING CURVE
VZ, TEMPERATURE COEFFICIENT (mV/°C)
100
VZ, TEMPERATURE COEFFICIENT(mV/W)
70 50 30 20 10 7.0 5.0 3.0 2.0 1.0 10 20 30 50 70 100
RANGE VZ @ IZT
+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, ZENER VOLTAGE (VOLTS)
VZ, ZENER VOLTAGE (VOLTS)
Fig. 2-TEMPERATURE COEFFICIENTS (-55°C TO +150°C TEMPERATURE RANGE; 90% OF THE UNITS ARE IN THE RANGES INDICATED.)
175
JL, JUNCTION TO LEAD THERMAL RESISTANCE (°C/W)
15.