Surface Mount Zener Diode with Wide Voltage Range Jingdao Microelectronics 1SMAF4737A Silicon Planar
Key Attributes
Model Number:
1SMAF4737A
Product Custom Attributes
Operating Junction Temperature Range:
-55℃~+150℃
Impedance(Zzt):
4Ω
Diode Configuration:
Independent
Zener Voltage(Range):
7.12V~7.88V
Pd - Power Dissipation:
1W
Zener Voltage(Nom):
7.5V
Mfr. Part #:
1SMAF4737A
Package:
SMAF
Product Description
Product Overview
The 1SMAF4728A THRU 1SMAF4777A are silicon planar Zener diodes designed for surface-mounted applications. They offer a wide zener reverse voltage range from 3.3V to 330V and a maximum power dissipation of 1W. Their small plastic package (SMAF) makes them suitable for compact designs.
Product Attributes
- Brand: Jingdao Microelectronics ()
- Origin: China
- Certifications: MIL-STD-750, Method 2026 (for solderability)
Technical Specifications
| Model | Zener Voltage Range (VZ) Nom. (V) | Zener Voltage Range (VZ) Min. (V) | Zener Voltage Range (VZ) Max. (V) | Dynamic Impedance ZZT Max. () | Reverse Current IR Max. (A) | Admissible Zener Current IZM (mA) | Power Dissipation (W) | Forward Voltage VF at IF = 200 mA (V) | Junction Temperature Range (C) | Storage Temperature Range (C) |
| 1SMAF4728A | 3.3 | 3.10 | 3.50 | 75 | 10 | 100 | 1 | 1.2 | -55 to +150 | -55 to +150 |
| 1SMAF4729A | 3.6 | 3.40 | 3.70 | 69 | 10 | 100 | 1 | 1.2 | -55 to +150 | -55 to +150 |
| 1SMAF4730A | 3.9 | 3.60 | 4.06 | 64 | 10 | 100 | 1 | 1.2 | -55 to +150 | -55 to +150 |
| 1SMAF4731A | 4.3 | 3.90 | 4.50 | 58 | 10 | 100 | 1 | 1.2 | -55 to +150 | -55 to +150 |
| 1SMAF4732A | 4.7 | 4.10 | 4.56 | 53 | 10 | 100 | 1 | 1.2 | -55 to +150 | -55 to +150 |
| 1SMAF4733A | 5.1 | 4.56 | 4.93 | 49 | 10 | 100 | 1 | 1.2 | -55 to +150 | -55 to +150 |
| 1SMAF4734A | 5.6 | 5.00 | 5.40 | 45 | 10 | 70 | 1 | 1.2 | -55 to +150 | -55 to +150 |
| 1SMAF4735A | 6.2 | 5.50 | 6.00 | 41 | 10 | 60 | 1 | 1.2 | -55 to +150 | -55 to +150 |
| 1SMAF4736A | 6.8 | 6.00 | 6.50 | 34 | 10 | 50 | 1 | 1.2 | -55 to +150 | -55 to +150 |
| 1SMAF4737A | 7.5 | 6.50 | 7.10 | 31 | 10 | 45 | 1 | 1.2 | -55 to +150 | -55 to +150 |
| 1SMAF4738A | 8.2 | 7.00 | 7.70 | 28 | 10 | 40 | 1 | 1.2 | -55 to +150 | -55 to +150 |
| 1SMAF4739A | 9.1 | 7.70 | 8.40 | 25 | 10 | 35 | 1 | 1.2 | -55 to +150 | -55 to +150 |
| 1SMAF4740A | 10 | 8.50 | 9.40 | 23 | 10 | 30 | 1 | 1.2 | -55 to +150 | -55 to +150 |
| 1SMAF4741A | 11 | 9.50 | 10.50 | 21 | 10 | 27 | 1 | 1.2 | -55 to +150 | -55 to +150 |
| 1SMAF4742A | 12 | 10.50 | 11.50 | 19 | 10 | 25 | 1 | 1.2 | -55 to +150 | -55 to +150 |
| 1SMAF4743A | 13 | 11.50 | 12.50 | 17 | 10 | 23 | 1 | 1.2 | -55 to +150 | -55 to +150 |
| 1SMAF4744A | 15 | 13.00 | 14.50 | 16 | 10 | 21 | 1 | 1.2 | -55 to +150 | -55 to +150 |
| 1SMAF4745A | 16 | 14.00 | 15.50 | 14 | 10 | 20 | 1 | 1.2 | -55 to +150 | -55 to +150 |
| 1SMAF4746A | 18 | 15.00 | 17.00 | 13 | 10 | 18 | 1 | 1.2 | -55 to +150 | -55 to +150 |
| 1SMAF4747A | 20 | 17.00 | 19.00 | 12 | 10 | 17 | 1 | 1.2 | -55 to +150 | -55 to +150 |
| 1SMAF4748A | 22 | 19.00 | 21.00 | 11 | 10 | 15 | 1 | 1.2 | -55 to +150 | -55 to +150 |
| 1SMAF4749A | 24 | 21.00 | 23.00 | 11 | 10 | 14 | 1 | 1.2 | -55 to +150 | -55 to +150 |
| 1SMAF4750A | 27 | 23.00 | 25.00 | 9.5 | 10 | 13 | 1 | 1.2 | -55 to +150 | -55 to +150 |
| 1SMAF4751A | 30 | 25.00 | 27.00 | 8.5 | 10 | 12 | 1 | 1.2 | -55 to +150 | -55 to +150 |
| 1SMAF4752A | 33 | 28.00 | 30.00 | 7.5 | 10 | 11 | 1 | 1.2 | -55 to +150 | -55 to +150 |
| 1SMAF4753A | 36 | 31.00 | 33.00 | 7.0 | 10 | 10 | 1 | 1.2 | -55 to +150 | -55 to +150 |
| 1SMAF4754A | 39 | 34.00 | 37.00 | 6.5 | 10 | 9.5 | 1 | 1.2 | -55 to +150 | -55 to +150 |
| 1SMAF4755A | 43 | 37.00 | 41.00 | 6.0 | 10 | 8.5 | 1 | 1.2 | -55 to +150 | -55 to +150 |
| 1SMAF4756A | 47 | 40.90 | 45.60 | 5.5 | 10 | 7.5 | 1 | 1.2 | -55 to +150 | -55 to +150 |
| 1SMAF4757A | 51 | 43.00 | 47.00 | 5.0 | 10 | 7.0 | 1 | 1.2 | -55 to +150 | -55 to +150 |
| 1SMAF4758A | 56 | 47.00 | 52.00 | 4.5 | 10 | 6.5 | 1 | 1.2 | -55 to +150 | -55 to +150 |
| 1SMAF4759A | 62 | 52.00 | 58.00 | 4.0 | 10 | 5.5 | 1 | 1.2 | -55 to +150 | -55 to +150 |
| 1SMAF4760A | 68 | 58.00 | 64.00 | 3.7 | 10 | 5.0 | 1 | 1.2 | -55 to +150 | -55 to +150 |
| 1SMAF4761A | 75 | 64.60 | 71.20 | 3.5 | 10 | 4.5 | 1 | 1.2 | -55 to +150 | -55 to +150 |
| 1SMAF4762A | 82 | 71.70 | 78.80 | 3.3 | 10 | 4.0 | 1 | 1.2 | -55 to +150 | -55 to +150 |
| 1SMAF4763A | 91 | 78.80 | 87.00 | 3.1 | 10 | 3.5 | 1 | 1.2 | -55 to +150 | -55 to +150 |
| 1SMAF4764A | 100 | 86.00 | 96.00 | 2.8 | 10 | 3.0 | 1 | 1.2 | -55 to +150 | -55 to +150 |
| 1SMAF4765A | 110 | 95.00 | 105.00 | 2.5 | 10 | 2.8 | 1 | 1.2 | -55 to +150 | -55 to +150 |
| 1SMAF4766A | 120 | 104.00 | 116.00 | 2.3 | 10 | 2.5 | 1 | 1.2 | -55 to +150 | -55 to +150 |
| 1SMAF4767A | 130 | 114.00 | 127.00 | 2.0 | 10 | 2.3 | 1 | 1.2 | -55 to +150 | -55 to +150 |
| 1SMAF4768A | 150 | 130.00 | 140.00 | 1.9 | 10 | 2.0 | 1 | 1.2 | -55 to +150 | -55 to +150 |
| 1SMAF4769A | 160 | 140.00 | 154.00 | 1.7 | 10 | 1.9 | 1 | 1.2 | -55 to +150 | -55 to +150 |
| 1SMAF4770A | 175 | 150.00 | 165.00 | 1.6 | 10 | 1.7 | 1 | 1.2 | -55 to +150 | -55 to +150 |
| 1SMAF4771A | 180 | 154.00 | 170.00 | 1.4 | 10 | 1.6 | 1 | 1.2 | -55 to +150 | -55 to +150 |
| 1SMAF4772A | 200 | 170.00 | 189.00 | 1.2 | 10 | 1.4 | 1 | 1.2 | -55 to +150 | -55 to +150 |
| 1SMAF4773A | 220 | 180.00 | 209.00 | 1.0 | 10 | 1.2 | 1 | 1.2 | -55 to +150 | -55 to +150 |
| 1SMAF4774A | 240 | 186.00 | 229.00 | 1.0 | 10 | 1.0 | 1 | 1.2 | -55 to +150 | -55 to +150 |
| 1SMAF4775A | 250 | 203.00 | 249.00 | 1.0 | 10 | 1.0 | 1 | 1.2 | -55 to +150 | -55 to +150 |
| 1SMAF4776A | 270 | 219.00 | 269.00 | 1.0 | 10 | 1.0 | 1 | 1.2 | -55 to +150 | -55 to +150 |
| 1SMAF4777A | 300 | 243.00 | 315.00 | 1.0 | 10 | 1.0 | 1 | 1.2 | -55 to +150 | -55 to +150 |
2304140030_Jingdao-Microelectronics-1SMAF4737A_C169538.pdf
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