Silicon Planar Zener Diode Shikues 1SMAF4745A Surface Mount SMAF Package with 1 Watt Power Dissipation
Key Attributes
Model Number:
1SMAF4745A
Product Custom Attributes
Operating Junction Temperature Range:
-55℃~+150℃
Reverse Leakage Current (Ir):
15uA
Pd - Power Dissipation:
1W
Impedance(Zzt):
16Ω
Diode Configuration:
Independent
Zener Voltage(Range):
15.2V~17.1V
Zener Voltage(Nom):
16V
Mfr. Part #:
1SMAF4745A
Package:
SMAF
Product Description
Product Overview
The 1SMAF4728A THRU 1SMAF4763A series are silicon planar Zener diodes designed for surface-mounted applications. They offer a wide zener reverse voltage range from 3.3V to 91V and a total power dissipation of up to 1W. Their small plastic package (SMAF) makes them suitable for compact designs.
Product Attributes
- Brand: Not specified
- Origin: Not specified
- Material: Silicon Planar
- Color: Not specified
- Certifications: MIL-STD-750, Method 2026 (Terminals solderable)
Technical Specifications
| Type | Marking | Zener Voltage Nom. (V) | Zener Voltage Range (V) | IZT (mA) | ZZT Max. () | IR Max. (uA) | IZM Max. (mA) |
| 1SMAF4728A | 728A | 3.3 | 3.14 - 3.47 | 75 | 10 | 100 | 285 |
| 1SMAF4729A | 729A | 3.6 | 3.42 - 3.78 | 69 | 10 | 100 | 263 |
| 1SMAF4730A | 730A | 3.9 | 3.71 - 4.1 | 64 | 9.0 | 50 | 243 |
| 1SMAF4731A | 731A | 4.3 | 4.09 - 4.52 | 58 | 9.0 | 25 | 219 |
| 1SMAF4732A | 732A | 4.7 | 4.47 - 4.94 | 53 | 8.0 | 10 | 203 |
| 1SMAF4733A | 733A | 5.1 | 4.85 - 5.36 | 49 | 7.0 | 10 | 186 |
| 1SMAF4734A | 734A | 5.6 | 5.32 - 5.88 | 45 | 5.0 | 10 | 170 |
| 1SMAF4735A | 735A | 6.2 | 5.89 - 6.51 | 41 | 2.0 | 10 | 154 |
| 1SMAF4736A | 736A | 6.8 | 6.46 - 7.14 | 37 | 3.5 | 10 | 140 |
| 1SMAF4737A | 737A | 7.5 | 7.13 - 7.88 | 34 | 4.0 | 10 | 127 |
| 1SMAF4738A | 738A | 8.2 | 7.79 - 8.61 | 31 | 4.5 | 10 | 116 |
| 1SMAF4739A | 739A | 9.1 | 8.65 - 9.56 | 28 | 5.0 | 10 | 104 |
| 1SMAF4740A | 740A | 10 | 9.5 - 10.5 | 25 | 7.0 | 10 | 95 |
| 1SMAF4741A | 741A | 11 | 10.45 - 11.55 | 23 | 8.0 | 5 | 86 |
| 1SMAF4742A | 742A | 12 | 11.4 - 12.6 | 21 | 9.0 | 5 | 79 |
| 1SMAF4743A | 743A | 13 | 12.35 - 13.65 | 19 | 10 | 5 | 71 |
| 1SMAF4744A | 744A | 15 | 14.25 - 15.75 | 17 | 14 | 5 | 63 |
| 1SMAF4745A | 745A | 16 | 15.2 - 16.8 | 16 | 16 | 5 | 58 |
| 1SMAF4746A | 746A | 18 | 17.1 - 18.9 | 14 | 20 | 5 | 52 |
| 1SMAF4747A | 747A | 20 | 19 - 21 | 13 | 22 | 5 | 47 |
| 1SMAF4748A | 748A | 22 | 20.9 - 23.1 | 12 | 23 | 5 | 43 |
| 1SMAF4749A | 749A | 24 | 22.8 - 25.2 | 11 | 25 | 5 | 38 |
| 1SMAF4750A | 750A | 27 | 25.65 - 28.35 | 9.5 | 35 | 5 | 35 |
| 1SMAF4751A | 751A | 30 | 28.5 - 31.5 | 8.5 | 40 | 5 | 31 |
| 1SMAF4752A | 752A | 33 | 31.35 - 34.65 | 7.5 | 45 | 5 | 28 |
| 1SMAF4753A | 753A | 36 | 34.2 - 37.8 | 7.0 | 50 | 5 | 26 |
| 1SMAF4754A | 754A | 39 | 37.05 - 40.95 | 6.5 | 60 | 5 | 24 |
| 1SMAF4755A | 755A | 43 | 40.85 - 45.15 | 6.0 | 70 | 1 | 22 |
| 1SMAF4756A | 756A | 47 | 44.65 - 49.35 | 5.5 | 80 | 1 | 20 |
| 1SMAF4757A | 757A | 51 | 48.45 - 53.55 | 5.0 | 95 | 1 | 18 |
| 1SMAF4758A | 758A | 56 | 53.2 - 58.8 | 4.5 | 110 | 1 | 17 |
| 1SMAF4759A | 759A | 62 | 58.9 - 65.1 | 4.0 | 125 | 1 | 15 |
| 1SMAF4760A | 760A | 68 | 64.6 - 71.4 | 3.7 | 150 | 1 | 14 |
| 1SMAF4761A | 761A | 75 | 71.25 - 78.75 | 3.3 | 175 | 1 | 12 |
| 1SMAF4762A | 762A | 82 | 77.9 - 86.1 | 3.0 | 200 | 1 | 11 |
| 1SMAF4763A | 763A | 91 | 86.45 - 95.55 | 2.8 | 250 | 1 | 10 |
Absolute Maximum Ratings
| Parameter | Symbol | Value | Unit |
| Power Dissipation at TA=25 | PD | 1 | W |
| Forward Voltage at IF=200mA | VF | 1.2 | V |
| Junction Temperature Range | TJ | -55~+150 | |
| Storage Temperature Range | TS | -55~+150 |
Typical Thermal Resistance
| Parameter | Symbol | Value | Unit |
| Typical Thermal Resistance(1) (P.C.B. mounted with 0.2" X 0.2" (5 X 5 mm) copper areas pads) | RJA | 100 | /W |
| RJC | 20 | ||
| RJL | 30 |
Package Information (SMAF)
| Dimension | Unit | min | max |
| A | mm | 3.3 | 3.7 |
| C | mm | 2.4 | 2.7 |
| D | mm | 1.3 | 1.6 |
| E | mm | 0.8 | 1.2 |
| e | mm | 4.4 | 4.9 |
| g | 173 | 193 | |
| HE | mil | 35 | 47 |
| inch | 0.130 | 0.146 |
2510281842_Shikues-1SMAF4745A_C475440.pdf
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