Surface Mount Zener Diode DOWO SMA4729A with Built in Strain Relief and Maximum Surge Current Rating
Key Attributes
Model Number:
SMA4729A
Product Custom Attributes
Operating Junction Temperature Range:
-55℃~+175℃
Impedance(Zzt):
10Ω
Diode Configuration:
-
Pd - Power Dissipation:
1W
Zener Voltage(Range):
-
Zener Voltage(Nom):
3.6V
Impedance(Zzk):
400Ω
Mfr. Part #:
SMA4729A
Package:
SMA
Product Description
Product Overview
Surface Mount Zener Diodes designed for stabilizing and clipping circuits. Features include glass passivation, low leakage, built-in strain relief, low inductance, and high peak reverse power dissipation. These components are lead (Pb)-free.
Product Attributes
- Case: Molded plastic
- Epoxy: UL 94V-0 rate flame retardant
- Lead: Solderable per MIL-STD-750, method 2026
- Polarity: Color band denotes cathode end
- Mounting position: Any
Technical Specifications
| Part Number | Device Marking Code | Nominal Zener Voltage (V) @ IZT (mA) | Maximum Zener Impedance () @ IZK | Maximum Reverse Leakage Current (A) @ VR (V) | Maximum DC Zener Current (mA) | Maximum Surge Current (mApk) |
| SMA4728A | 28A | 3.3 @ 76.0 | 10.0 @ 400 | 1.0 @ 1.0 | 274.0 | 1370 |
| SMA4729A | 29A | 3.6 @ 69.0 | 10.0 @ 400 | 1.0 @ 1.0 | 251.0 | 1255 |
| SMA4730A | 30A | 3.9 @ 64.0 | 9.0 @ 400 | 1.0 @ 1.0 | 232.0 | 1160 |
| SMA4731A | 31A | 4.3 @ 58.0 | 9.0 @ 400 | 10.0 @ 1.0 | 210.0 | 1050 |
| SMA4732A | 32A | 4.7 @ 53.0 | 8.0 @ 500 | 10.0 @ 1.0 | 192.0 | 960 |
| SMA4733A | 33A | 5.1 @ 49.0 | 7.0 @ 550 | 10.0 @ 1.0 | 177.0 | 885 |
| SMA4734A | 34A | 5.6 @ 45.0 | 5.0 @ 600 | 10.0 @ 2.0 | 161.0 | 805 |
| SMA4735A | 35A | 6.2 @ 41.0 | 2.0 @ 700 | 10.0 @ 3.0 | 146.0 | 730 |
| SMA4736A | 36A | 6.8 @ 37.0 | 3.5 @ 700 | 5.0 @ 4.0 | 133.0 | 660 |
| SMA4737A | 37A | 7.5 @ 34.0 | 4.0 @ 700 | 5.0 @ 5.0 | 121.0 | 605 |
| SMA4738A | 38A | 8.2 @ 31.0 | 4.5 @ 700 | 5.0 @ 6.0 | 110.0 | 550 |
| SMA4739A | 39A | 9.1 @ 28.0 | 5.0 @ 700 | 0.5 @ 7.0 | 100.0 | 500 |
| SMA4740A | 40A | 10.0 @ 25.0 | 7.0 @ 700 | 0.5 @ 7.6 | 91.0 | 454 |
| SMA4741A | 41A | 11.0 @ 23.0 | 8.0 @ 700 | 0.1 @ 8.4 | 83.0 | 414 |
| SMA4742A | 42A | 12.0 @ 21.0 | 9.0 @ 700 | 0.1 @ 9.1 | 76.0 | 380 |
| SMA4743A | 43A | 13.0 @ 19.0 | 10.0 @ 700 | 0.1 @ 9.9 | 69.0 | 344 |
| SMA4744A | 44A | 15.0 @ 17.0 | 14.0 @ 700 | 0.1 @ 11.4 | 61.0 | 305 |
| SMA4745A | 45A | 16.0 @ 15.5 | 16.0 @ 700 | 0.1 @ 12.2 | 57.0 | 285 |
| SMA4746A | 46A | 18.0 @ 14.0 | 20.0 @ 750 | 0.1 @ 13.7 | 50.0 | 250 |
| SMA4747A | 47A | 20.0 @ 12.5 | 22.0 @ 750 | 0.1 @ 15.2 | 45.0 | 225 |
| SMA4748A | 48A | 22.0 @ 11.5 | 23.0 @ 750 | 0.1 @ 16.7 | 41.0 | 205 |
| SMA4749A | 49A | 24.0 @ 10.5 | 25.0 @ 750 | 0.1 @ 18.2 | 38.0 | 190 |
| SMA4750A | 50A | 27.0 @ 9.5 | 35.0 @ 750 | 0.1 @ 20.6 | 34.0 | 170 |
| SMA4751A | 51A | 30.0 @ 8.5 | 40.0 @ 1000 | 0.1 @ 22.8 | 30.0 | 150 |
| SMA4752A | 52A | 33.0 @ 7.5 | 45.0 @ 1000 | 0.1 @ 25.1 | 27.0 | 135 |
| SMA4753A | 53A | 36.0 @ 7.0 | 50.0 @ 1000 | 0.1 @ 27.4 | 25.0 | 125 |
| SMA4754A | 54A | 39.0 @ 6.5 | 60.0 @ 1000 | 0.1 @ 29.7 | 23.0 | 115 |
| SMA4755A | 55A | 43.0 @ 6.0 | 70.0 @ 1500 | 0.1 @ 32.7 | 22.0 | 110 |
| SMA4756A | 56A | 47.0 @ 5.5 | 80.0 @ 1500 | 0.1 @ 35.8 | 19.0 | 95 |
| SMA4757A | 57A | 51.0 @ 5.0 | 95.0 @ 1500 | 0.1 @ 38.8 | 18.0 | 90 |
| SMA4758A | 58A | 56.0 @ 4.5 | 110.0 @ 2000 | 0.1 @ 42.6 | 16.0 | 80 |
| SMA4759A | 59A | 62.0 @ 4.0 | 125.0 @ 2000 | 0.1 @ 47.1 | 14.0 | 70 |
| SMA4760A | 60A | 68.0 @ 3.7 | 150.0 @ 2000 | 0.1 @ 51.7 | 13.0 | 65 |
| SMA4761A | 61A | 75.0 @ 3.3 | 175.0 @ 2000 | 0.1 @ 56.0 | 12.0 | 60 |
| SMA4762A | 62A | 82.0 @ 3.0 | 200.0 @ 3000 | 0.1 @ 62.2 | 11.0 | 55 |
| SMA4763A | 63A | 91.0 @ 2.8 | 250.0 @ 3000 | 0.1 @ 69.2 | 10.0 | 50 |
| SMA4764A | 64A | 100.0 @ 2.5 | 350.0 @ 3000 | 0.1 @ 76.0 | 9.0 | 45 |
| SZ1110A | 11Z | 110.0 @ 2.3 | 450.0 @ 4000 | 0.1 @ 83.6 | 8.6 | 40 |
| SZ1120A | 12Z | 120.0 @ 2.0 | 550.0 @ 4500 | 0.1 @ 91.2 | 7.8 | 37 |
| SZ1130A | 13Z | 130.0 @ 1.9 | 700.0 @ 5000 | 0.1 @ 98.8 | 7.0 | 34 |
| SZ1150A | 15Z | 150.0 @ 1.7 | 1000.0 @ 6000 | 0.1 @ 114.0 | 6.4 | 30 |
| SZ1160A | 16Z | 160.0 @ 1.6 | 1100.0 @ 6500 | 0.1 @ 121.6 | 5.8 | 28 |
| SZ1180A | 18Z | 180.0 @ 1.4 | 1200.0 @ 7000 | 0.1 @ 136.8 | 5.2 | 25 |
| SZ1200A | 20Z | 200.0 @ 1.2 | 1900.0 @ 9990 | 0.1 @ 152.0 | 4.7 | 22 |
| SZ1220A | 22Z | 220.0 @ 1.0 | 1600.0 @ 8000 | 0.1 @ 167.2 | 4.0 | 20 |
| SZ1240A | 24Z | 240.0 @ 0.9 | 1800.0 @ 8500 | 0.1 @ 182.4 | 3.8 | 19 |
| SZ1250A | 25Z | 250.0 @ 0.9 | 2000.0 @ 9000 | 0.1 @ 190.0 | 3.6 | 18 |
| SZ1270A | 27Z | 270.0 @ 0.8 | 2100.0 @ 9000 | 0.1 @ 205.0 | 3.3 | 16 |
| SZ1300A | 30Z | 300.0 @ 0.8 | 2300.0 @ 9500 | 0.1 @ 228.0 | 3.0 | 15 |
| SZ1330A | 33Z | 330.0 @ 0.7 | 2500.0 @ 9500 | 0.1 @ 250.2 | 2.7 | 13 |
Notes:
1. The type number listed have a standard tolerance on the nominal zener voltage of 5 %.
2. The revese surge current is a non-repetitive, 8.3ms pulse width square wave or equivalent sine-wave superimposed on IZT per JEDEC Method.
2410121828_DOWO-SMA4729A_C22378365.pdf
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