Pb RoHS COMPLIANCE N474A - M2Z CREAT BY ART. Watt Glass Passivated Junction Silicon Zener Diodes DO-4 Features Low profile package Built-in strain relief Glass passivated junction Low inductance Typical I R less than 5uA above V High temperature soldering guaranteed: 26 / seconds at terminals Plastic package has Underwriters Laboratory Flammability Classification 94V- Green compound with suffix "G" on packing code & prefix "G" on datecode Mechanical Data Case: Molded plastic DO-4 Expoxy: UL 94V- rate flame retardant Lead: Pure tin plated, lead free, solderable per MIL-STD-22, method 225 Polarity: Color Band denotes cathode end Mounting position: Any Weight:.3 gram Dimensions in inches and (millimeters) Marking Diagram N47XXA = Specific Device Code G = Green Compound Y = Year WW = Work Week Maximum Ratings and Electrical Characteristics Rating at 25 ambient temperature unless otherwise specified. Type Number Peak Power Dissipation at TA=5, Derate above 5 (Note ) Symbol Value P D. 6.67 Unit Watts mw/ Peak Forward Surge Current, 8.3ms Single Half Sine-wave Superimposed on Rated Load (JEDEC method)(note 2) I FSM Amps Operating and Storage Temperature Range T J, T STG -55 to +5 Note : Mounted on Cu-Pad size 5mm x 5mm x.6mm on PCB Note 2: Measure on 8.3ms Single half Sine-Wave of equivalent square wave, duty cycle= 4 pulse per minute maximum Version:E
ELECTRICAL CHARACTERISTICS ( unless otherwise noted) Zener Voltage Test Current Zener Impedance Leakage Current Surge current T A =25 Device (Note ) Min. Vz@Iz T V Nom. (Note 2) (Note 3) Max. I ZT Z ZT @I ZT Z ZK @I ZK I R @V R I R ma Ω Ω ma ua V ma Max. N474A 9.5.5 25. 7 7.25 7.6 454 N474A.45.55 23. 8 7.25 5 8.4 44 N4742A.4 2 2.6 2. 9 7.25 5 9. 38 N4743A 2.35 3 3.65 9. 7.25 5 9.9 344 N4744A 4.25 5 5.75 7. 4 7.25 5.4 34 N4745A 5.2 6 6.8 5.5 6 7.25 5 2.2 285 N4746A 7. 8 8.9 4. 2 75.25 5 3.7 25 N4747A 9. 2 2. 2.5 22 75.25 5 5.2 225 N4748A 2.9 22 23..5 23 75.25 5 6.7 25 N4749A 22.8 24 25.2.5 25 75.25 5 8.2 9 N475A 25.65 27 28.35 9.5 35 75.25 5 2.6 7 N475A 28.5 3 3.5 8.5 4.25 5 22.8 5 N4752A 3.35 33 34.65 7.5 45.25 5 25. 35 N4753A 34.2 36 37.8 7. 5.25 5 27.4 25 N4754A 37.5 39 4.95 6.5 6.25 5 29.7 5 N4755A 4.85 43 45.5 6. 7 5.25 5 32.7 N4756A 44.65 47 49.35 5.5 8 5.25 5 35.8 95 N4757A 48.45 5 53.55 5. 95 5.25 5 38.8 9 N4758A 53.2 56 58.8 4.5 2.25 5 42.6 8 N4759A 58.9 62 65. 4. 25 2.25 5 47. 7 N476A 64.6 68 7.4 3.7 5 2.25 5 5.7 65 N476A 7.25 75 78.75 3.3 75 2.25 5 56. 6 N4762A 77.9 82 86. 3. 2 3.25 5 62.2 55 N4763A 86.45 9 95.55 2.8 25 3.25 5 69.2 5 N4764A 95. 5. 2.5 35 3.25 5 76. 45 MZ 4.5 5.5 2.3 45 4.25 5 83.6 - M2Z 4. 2 26. 2. 55 45.25 5 9.2 - M3Z 23.5 3 36.5.9 7 5.25 5 98.8 - M5Z 42.5 5 57.5.7 6.25 5 4. - M6Z 52. 6 68..6 65.25 5 2.6 - M8Z 7. 8 89..4 2 7.25 5 36.8 - M2Z 9. 2 2..2 5 8.25 5 52. - Notes:. Tolerance and Type Number Designation. The type numbers losted 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 messured at 9 seconds while maintaining the lead temperature(t L ) at 3 ±, from the diode body 4. Zener Impedance (Zz) Derivation. The zener impedance is derives from the 6 cycle AC voltage, which results when an accurrent having and rms value equal to % of the DC zener current (I ZT or I ZK ) is superimposed on I ZT or I ZK 5. Surge Current (I R ) Non-Repetitive. The rating listd in the electrical chatacteristics table is maximum peak, non-repetitive, reverse surge current of /2 square wave or equivalent sine wave pulse of /2 second duration superimposed on the test current, I ZT per JEDEC registration; however, actual device capability is as described in Figure Version:E
RATINGS AND CHARACTERISTIC CURVES (N474A THRU M2Z) FIG. POWER TEMPERATURE DERATING CURVE FIG. 2 TYPICAL FORWARD CHARACTERISTICS.25 MINIMUM MAXIMUM P D, MAXIMUM POWER DISSIPATION (WATTS).75.5.25 IF, FORWARD CURRENT (ma) 5 7 25 25 5 75 25 5 AMBIENT TEMPERATURE( ).4.5.6.7.8.9. V F, FORWARD VOLTAGE (V) Zz, DYNAMIC IMPEDANCE (Ω) FIG.3 EFFECT OF ZENER CURRENT ON ZENER IMPEDANCE 47V.8V 27V Iz(rms)=. Iz(dc) f=khz FIG.5 TYPICAL LEAKAGE CURRENT TYPICAL LEAKAGE CURRENT AT 8% OF NOMINAL BREAKDOWN VOLTAGE Zz, DYNAMIC IMPEDANCE (Ω) Iz = ma 5 ma 2mA Iz, ZENER CURRENT (ma) FIG.4 EFFECT OF ZENER VOLTAGE ON ZENER IMPEDANCE Iz(rms)=. Iz(dc) f=khz IR, LEAKAGE CURRENT(uA).. 25 25. 3 4 5 6 7 8 9 2 3 4 5 Vz, NOMINAL ZENER VOLTAGE(V) Iz, ZENER CURRENT(mA) Version:E
RATINGS AND CHARACTERISTIC CURVES (N474A THRU M2Z) FIG.6 TYPICAL CAPACITANCE versus Vz 2 FIG. 7 TEMPERATURE COEFFICIENTS a-range FOR UNITS TO 2 VOLTS C, CAPACITANCE(pF) V BIAS.V BIAS 5% OF BREAKDOWN Vz, FORWARD VOLTAGE (V) 8 6 4 2-2 -4 RANGE Vz@ IZT 2 3 4 5 6 7 8 9 2 FIG.8 TEMPERATURE COEFFICIENTS b-range FOR UNITS 2 TO VOLTS RANGE Vz@ IZT 6 4 2-2 -4 Vz@ IZT FIG. 9 EFFECT OF ZENER CURRENT 2mA ma NOTE:BELOW 3 VOLTAGE ABOVE a VOLTS CHANGES IN ZENER CURRENT NOT AFFECT TEMPERATURE 3 3.5 4 4.5 5 5.5 6 6.5 7 7.5 8.mA 75 FIG. TYPICAL THERMAL RESISTANCE versus LEAD LENGTH ΘJL, JUNCTION TO LEAD THERMAL RESISTANCE( /W) 5 25 75 5 25..2.3.4.5.6.7.8.9 L, LEAD LENGTH TO HEAT SINK(INCHES) Version:E
RATINGS AND CHARACTERISTIC CURVES (N474A THRU M2Z) P PK, PEAK SURGE POWER WATTS 5% DUTY CYCLE % DUTY CYCLE 2% DUTY CYCLE FIG. MAXIMUM SURGE POWER PW, PULSE WIDTH (ms) V-9V NON-REPETITIVE.8V-V NON-REPETITIVE RECTANGULAR WAVEFORM PRIOR TO INITIAL PULSE Version:E