1SMA4747A

1SMA4738A thru 1SMA4764A Surface Mount Zener Diodes Vz Range:8.2V to 100V Power Dissipation:1W Features  Silicon power zener diodes  For use in stabilizing and clipping circuits with high power rating. DO-214AC (SMA)  Suffix”A” for ±5% tolerance. Maximum Rating (TA=25°C unless otherwise specified) Parameter Symbol Value Unit I RM, I ZM See Electrical Characteristics mA Power Dissipation at TL=70°C PD 1 W JunctionTemperature TJ 150 °C TSTG -55 to +150 °C RθJA 125 °C/W RθJL 30 °C/W Zener Current Storage Temperature Range Typical Thermal Resistance (1) Note1: Thermal resistance from junction to ambient & lead, mounted on PCB with 5.0×5.0mm copper pads Electrical Characteristics (TA=25°C unless otherwise specified) Part Number Device Marking Code Nominal Zener Voltage @ IZT VZ (V) Test Current IZT(mA) (2) Maximum Zener Impedance (3) Maximum Reverse Leakage Current Maximum Surge Current (4) Maximum Regulator Current (5) @ TA = 50°C ZZT @ IZT (Ω) ZZK (Ω) @ IZK (mA) IR (uA) @ VR (V) IRM (mA) IZM (mA) 1SMA4738A 4738A 8.2 31 4.5 700 0.5 10 6 550 122 1SMA4739A 4739A 9.1 28 5.0 700 0.5 10 7 500 110 1SMA4740A 4740A 10 25 7 700 0.25 10 7.6 454 100 1SMA4741A 4741A 11 23 8 700 0.25 5 8.4 414 83 1SMA4742A 4742A 12 21 9 700 0.25 5 9.1 380 76 1SMA4743A 4743A 13 19 10 700 0.25 5 9.9 344 69 1SMA4744A 4744A 15 17 14 700 0.25 5 11.4 304 61 1SMA4745A 4745A 16 15.5 16 700 0.25 5 12.2 285 57 1SMA4746A 4746A 18 14 20 750 0.25 5 13.7 250 50 1SMA4747A 4747A 20 12.5 22 750 0.25 5 15.2 225 45 1SMA4748A 4748A 22 11.5 23 750 0.25 5 16.7 205 41 1SMA4749A 4749A 24 10.5 25 750 0.25 5 18.2 190 38 1/4 1SMA4738A thru 1SMA4764A Surface Mount Zener Diodes Vz Range:8.2V to 100V Power Dissipation:1W Electrical Charateristics (TA=25°C unless otherwise specified) Device Marking Code Nominal Zener Voltage @ IZT VZ (V) (1) Test Current IZT(mA) 1SMA4750A 4750A 27.0 1SMA4751A 4751A 1SMA4752A Part Number Maximum Reverse Leakage Current Maximum Zener Impedance (2) Maximum Surge Current (3) Maximum Regulator Current (4) @ TA = 50°C ZZT @ IZT (Ω) ZZK (Ω) @ IZK (mA) IR (uA) @ VR (V) IRM (mA) IZM (mA) 10 35.0 750 0.3 5 21 170 34 30.0 9 40.0 1000 0.3 5 23 150 30 4752A 33 8 45 1000 0.25 5 25.1 135 27 1SMA4753A 4553A 36 7 50 1000 0.25 5 27.4 125 25 1SMA4754A 4754A 39 7 60 1000 0.25 5 29.7 115 23 1SMA4755A 4755A 43 6 70 1500 0.25 5 32.7 110 22 1SMA4756A 4756A 47 6 80 1500 0.25 5 35.8 95 19 1SMA4757A 4757A 51 5.0 95 1500 0.25 5 38.8 90 18 1SMA4758A 4758A 56 5 110 2000 0.25 5 42.6 80 16 1SMA4759A 4759A 62 4.0 125 2000 0.25 5 47.1 70 14 1SMA4760A 4760A 68 3.7 150 2000 0.25 5 51.7 65 13 1SMA4761A 4761A 75 3.3 175 2000 0.25 5 56.0 60 12 1SMA4762A 4762A 82.0 3 200.0 3000 0.3 5 62 55 11 1SMA4763A 4763A 91.0 3 250.0 3000 0.3 5 69 50 10 1SMA4764A 4764A 100 3 350 3000 0.25 5 76.0 45 9 Notes: (2) Measured under thermal equilibrium and DC test conditions. Voltage tolerance suffix A, ±5%. (3) The Zener impedance is derived from the 1KHZ AC voltage which results when an AC current having an RMS value equal to 10% of the Zener current (IZT or IZK) . Zener impedance is measure at two points to ensure a sharp knee on the breakdown curve and to eliminate unstable units. (4) Maximum surge current: Surge current is a non-repetitive, 8.3ms pulse width square wave or equivalent sine-wave superimposed on IZT per JEDEC method. (5) Valid provided that electrodes at a distance of 10 mm from case are kept at ambient temperature. 2/4 1SMA4738A thru 1SMA4764A Surface Mount Zener Diodes Vz Range:8.2V to 100V Power Dissipation:1W Ratings and Characteristic Curves (TA=25°C unless otherwise specified) 100 Instantaneous Forward Current, IF (A) Power Dissipation, PD (W) 1 0.75 0.5 0.25 25℃ 125℃ 10 1 0.1 0.01 0 25 50 75 100 125 150 0 175 Lead Temperature, TL (℃) Dynamic Zener Impedence, ZZT (Ω) 25℃ 1SMA4746A 125℃ 1SMA4746A 100 10 1 0 3 6 9 12 15 100 10 1 0.1 0.1 18 1 10 Test Current, IZT (mA) Instantaneous Reverse Voltage, VR (V) 100 Figure.4 Typical Zener Impedance Figure.3 Typical Reverse Characteristics 10000 1000 25℃ Zener Current, IZ (mA) 1000 Junction Capacitance , CJ (pF) 1.6 1000 1000 100 1SMA4745A Tj=25℃ f=1.0MHZ 18V 100 125℃ 20V 36V 10 1 0.1 Vsig=50mVp-p 1 0.1 1.2 Figure.2 Typical Instantaneous Forward Characteristics 10000 10 0.8 Instantaneous Forward Voltage, VF (V) Figure.1 Maximum Continous Power Dissipation Instantaneous Reverse Current, IR (uA) 0.4 1 0.01 10 0 Reverse Voltage,VR (V) 10 20 30 Zener Voltage ,VZ (V) Figure 6. Typical Zener Voltage Figure 5. Typical Junction Capacitance 3/4 40 50 1SMA4738A thru 1SMA4764A Surface Mount Zener Diodes Vz Range:8.2V to 100V Power Dissipation:1W Package Outline Dimensions DO-214AC (SMA) HE E SMA (DO-214AC) Millimeters D B DIM A cathode band Min. Max. Min. Max. A 1.90 2.30 0.075 0.091 A1 0.00 0.20 0.000 0.008 B 1.25 1.65 0.049 0.065 C 0.15 0.31 0.006 0.012 D 2.35 2.90 0.093 0.114 E 3.99 4.60 0.157 0.181 HE 4.80 5.30 0.189 0.209 L 0.76 1.52 0.030 0.060 C A1 L Inches Recommended Pad Layout J Recommended Pad Layout (Reference ONLY) DIM www.goodarksemi.com M Inches Max. Min. Max. J - 2.20 - 0.087 K 1.72 - 0.068 - M 2.00 - 0.079 - K M Millimeters Min. 4/4 Doc.US1SMA47xxAxGD5.1 Jan. 2023