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SMA Package Silicon Zener Diode 1SMA4728A 1W 3.3V Admissible Zener Current 285mA
Silicon Zener Diode DATASHEET: 1SMA4728A~1SMA4764A(SMA)_v2311.1.pdf
Silicon Zener Diode Features:
Small plastic package suitable for surface mounted design.
Silicon Zener Diode Mechanical Date:
Silicon Zener Diode Symbol:
Silicon Zener Diode Absolute Maximum Ratings (TA=25℃):
| Zener Diode Parameter | Symbol | Value | Units |
| Power Dissipation at Tc=75°C | PD | 1 | W |
| Forward Voltage at IF = 200 mA | VF | 1.2 | V |
| Junction Temperature Range | TJ | -55 to +150 | ℃ |
| Storage Temperature Range | TS | -55 to +150 | ℃ |
Silicon Zener Diode Electrical Characteristics (TA=25℃):
| Zener DiodePart Number | Zener Diode Zener Voltage Range (1) | Zener Diode IZT | Dynamic Impedance | Reverse Current | Admissible Zener Current | |||
| VZ @ IZT | ZZT @ IZT | IR @ VR | ||||||
| Min.(V) | Nom.(V) | Max.(V) | (mA) | Max.(Ω) | Max.(μA) | (V) | IZM (mA) | |
| 1SMA4728A | 3.10 | 3.3 | 3.50 | 75 | 10 | 100 | 1 | 285 |
| 1SMA4730A | 3.70 | 3.9 | 4.10 | 64 | 9 | 50 | 1 | 243 |
| 1SMA4731A | 4.06 | 4.3 | 4.56 | 58 | 9 | 25 | 1 | 219 |
| 1SMA4732A | 4.50 | 4.7 | 4.93 | 53 | 8 | 10 | 1 | 203 |
| 1SMA4733A | 4.84 | 5.1 | 5.36 | 49 | 7 | 10 | 1 | 186 |
| 1SMA4734A | 5.32 | 5.6 | 5.92 | 45 | 5 | 10 | 2 | 170 |
| 1SMA4735A | 5.86 | 6.2 | 6.51 | 41 | 2 | 10 | 3 | 154 |
| 1SMA4736A | 6.46 | 6.8 | 7.18 | 37 | 3.5 | 10 | 4 | 140 |
| 1SMA4737A | 7.12 | 7.5 | 7.88 | 34 | 4 | 10 | 5 | 127 |
| 1SMA4738A | 7.79 | 8.2 | 8.67 | 31 | 4.5 | 10 | 6 | 116 |
| 1SMA4739A | 8.60 | 9.1 | 9.59 | 28 | 5 | 10 | 7 | 104 |
| 1SMA4740A | 9.50 | 10 | 10.5 | 25 | 7 | 10 | 7 | 95 |
| 1SMA4741A | 10.4 | 11 | 11.6 | 23 | 8 | 5 | 8 | 86 |
| 1SMA4742A | 11.4 | 12 | 12.6 | 21 | 9 | 5 | 9 | 79 |
| 1SMA4743A | 12.4 | 13 | 14.1 | 19 | 10 | 5 | 10 | 71 |
| 1SMA4744A | 13.8 | 15 | 15.8 | 17 | 14 | 5 | 11 | 63 |
| 1SMA4745A | 15.2 | 16 | 17.1 | 16 | 16 | 5 | 12 | 58 |
| 1SMA4746A | 16.8 | 18 | 19.2 | 14 | 20 | 5 | 13 | 52 |
| 1SMA4747A | 19.0 | 20 | 21.2 | 13 | 22 | 5 | 15 | 47 |
| 1SMA4748A | 20.8 | 22 | 23.3 | 12 | 23 | 5 | 17 | 43 |
| 1SMA4749A | 22.8 | 24 | 26.0 | 11 | 25 | 5 | 18 | 38 |
| 1SMA4750A | 25.3 | 27 | 28.9 | 9.5 | 35 | 5 | 21 | 35 |
| 1SMA4751A | 28.2 | 30 | 32.0 | 8.5 | 40 | 5 | 23 | 31 |
| 1SMA4752A | 31.3 | 33 | 34.9 | 7.5 | 45 | 5 | 25 | 28 |
| 1SMA4753A | 34.2 | 36 | 37.9 | 7 | 50 | 5 | 27 | 26 |
| 1SMA4754A | 37.2 | 39 | 41.5 | 6.5 | 60 | 5 | 30 | 24 |
| 1SMA4755A | 40.9 | 43 | 45.6 | 6 | 70 | 1 | 32 | 22 |
| 1SMA4756A | 44.9 | 47 | 49.8 | 5.5 | 80 | 1 | 35 | 20 |
| 1SMA4757A | 48.6 | 51 | 54.0 | 5 | 95 | 1 | 38 | 18 |
Silicon Zener Diode Rating and Characteristic Curves:
Fig. 1. Maximum Continuous Power Derating
DO-214AC/SMA Package Outline Silicon Zener Diode Dimensions:
DO-214AC/SMA Package Silicon Zener Diode Ordering Information:
| Silicon Zener Diode Part Number | Component Package | Silicon Zener Diode Quantity |
| 1SMA4728A~1SMA4764A | DO-214AC/SMA | 5000 PCS |