1N4736A SERIES SILICON ZENER DIODE VOLTAGE 6.8 to 51 Volts POWER 1.0 Watts FEATURES * Low profile package 0.034(0.86) 0.028(0.71) * Built-in strain relief * Low inductance * High temperature soldering : 260C /10 seconds at terminals * Plastic package has Underwriters Laboratory Flammability Classification 94V-O 0.205(5.2) 0.160(4.1) * In compliance with EU RoHS 2002/95/EC directives MECHANICAL DATA 0.107(2.7) 0.080(2.0) 1.0(25.4)MIN. * Case: Molded plastic DO-41 * Epoxy:UL 94V-O rate flame retardant * Terminals: Axial leads, solderable per MIL-STD-750, Method 2026 guaranteed * Polarity: Color band denotes positive end * Mounting position:Any * Weight: 0.012 ounce, 0.3 gram * Packing information B - 1K per Bulk box T/R - 5K per 13" paper Reel T/B - 2.5K per horiz. tape & Ammo box MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS Ratings at 25C ambient temperature unless otherwise specified. Parameter Power Dissipation at Tamb = 25 O C Symbol Value Units PTOT 1* W TJ -55 to + 150 O C TSTG -55 to + 150 O C Junction Temperature Storage Temperature Range *Valid provided that leads at a distance of 10mm from case are kept at ambient temperature. May 31,2011-REV.07 PAGE . 1 1N4736A SERIES N o m i n a l Ze n e r Vo l t a g e Part Number M a x i m u m Ze n e r I m p e d a n c e V Z @ I ZT Z ZT @ I ZT M a x i m u m Leakage Current Z ZK @ I ZK Marking C ode I R @ VR N o m. V Min . V Ma x . V mA mA uA V D O-4 1 1N4736A 6.8 6.46 7.14 3.5 37 700 1 5 4 1N4736A 1N4737A 7.5 7.13 7.88 4 34 700 0.5 5 5 1N4737A 1N4738A 8.2 7.79 8.61 4.5 31 700 0.5 5 6 1N4738A 1N4739A 9.1 8.65 9.56 5 28 700 0.5 0.5 7 1N4739A 1N4740A 10 9.5 10.5 7 25 700 0.25 0.5 7.6 1N4740A 1N4741A 11 10.45 11.55 8 23 700 0.25 0.1 8.4 1N4741A 1N4742A 12 11.4 12.6 9 21 700 0.25 0.1 9.1 1N4742A 1N4743A 13 12.35 13.65 10 19 700 0.25 0.1 9.9 1N4743A 1N4744A 15 14.25 15.75 14 17 700 0.25 0.1 11.4 1N4744A 1N4745A 16 15.2 16.8 16 15.5 700 0.25 0.1 12.2 1N4745A 1N4746A 18 17.1 18.9 20 14 750 0.25 0.1 13.7 1N4746A 1N4747A 20 19 21 22 12.5 750 0.25 0.1 15.2 1N4747A 1N4748A 22 20.9 23.1 23 11.5 750 0.25 0.1 16.7 1N4748A 1N4749A 24 22.8 25.2 25 10.5 750 0.25 0.1 18.2 1N4749A 1N4750A 27 25.65 28.35 35 9.5 750 0.25 0.1 20.6 1N4750A 1N4751A 30 28.5 31.5 40 8.5 1000 0.25 0.1 22.8 1N4751A 1N4752A 33 31.35 34.65 45 7.5 1000 0.25 0.1 25.1 1N4752A 1N4753A 36 34.2 37.8 50 7 1000 0.25 0.1 27.4 1N4753A 1N4754A 39 37.05 40.95 60 6.5 1000 0.25 0.1 29.7 1N4754A 1N4755A 43 40.85 45.15 70 6 1500 0.25 0.1 32.7 1N4755A 1N4756A 47 44.65 49.35 80 5.5 1500 0.25 0.1 35.8 1N4756A 1N4757A 51 48.45 53.55 95 5 1500 0.25 0.1 38.8 1N4757A 1.0 Watt ZENER May 31,2011-REV.07 PAGE . 2 P D, Maximum Power Dissipation(Watts) 1.0 0.75 0.5 0.25 0 0 20 40 60 80 100 120 140 160 180 200 CJ, Junction Capacitance (pF) 1N4736A SERIES 1000 0V BIAS 1V BIAS 100 50% VZ BIAS 10 1 10 T L, Lead Temperature( oC) VZ , Zener Voltage (V) Fig.1 Steady-State Power Derating Curve Typical Leakage Current at 80% of Nominal Breakdown Voltage 1000.0 100.0 10.0 TJ = 125C 1.0 Fig.2 Typical Junction Capacitance IF, Forward Current (mA) IR, Leakage Current(nA) 10000.0 TJ = 25C 0.1 1000 TJ = 150C TJ = 125C 100 TJ = 25C 10 TJ = 75C 1 0 10 20 30 40 50 60 0.4 VZ , Nominal Zener Voltage (V) 51V 10 22V 6.8V 1 0.1 1 10 100 IZ , Zener Current (mA) Fig.5 Typical Effect Of Zener Current On Zener Impedance May 31,2011-REV.07 0.6 0.7 0.8 0.9 1 1.1 Fig.4 Typical Forward Characteristics Zz,Dynamic Impedance (OHMS) 1000 100 0.5 VF, Forward Voltage (V) Fig.3 Typical Leakage Characteristics Zz,Dynamic Impedance (OHMS) 100 1000 100 IZ=1mA 10 IZ=5mA 1 IZ=20mA 0.1 1 10 100 VZ , Zener Voltage (V) Fig.6 Typical Effect Of Zener Voltage On Zener Impedance PAGE . 3 120 100 VZ , Temperature o Coefficient (mV/ C) JL, Junction To Lead Thermal Resistance (oC / W ) 1N4736A SERIES 100 80 60 40 20 0 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 L, Lead Length To Heat Sink (Inches) Fig.7 Thermal Resistance Versus Lead Length May 31,2011-REV.07 10 1 1 10 100 VZ, Zener Voltage (V) Fig.8 Temperature Coefficient (+25oC To +150oC Temperature Range ; 90% Of The Units Are In The Ranges Indicated) PAGE . 4