Surface mount power voltage regulating diode GOODWORK 1SMA4749A with fast response and low leakage current
Key Attributes
Model Number:
1SMA4749A
Product Custom Attributes
Operating Junction Temperature Range:
-65℃~+150℃
Impedance(Zzt):
25Ω
Diode Configuration:
Independent
Pd - Power Dissipation:
500mW
Zener Voltage(Range):
22.8V~26V
Zener Voltage(Nom):
24V
Mfr. Part #:
1SMA4749A
Package:
SMA
Product Description
Product Overview
The 1SMA4728A THRU 1SMA4777A series are surface mount power voltage-regulating diodes with a wide voltage range from 3.3 to 300 Volts and a power rating of 1000mW. These diodes feature fast response times, excellent clamping capability, and low leakage current, making them suitable for various applications including voltage regulation and transient suppression.
Product Attributes
- Application: Surface mount
- High temperature soldering: Guaranteed 260 C / 10 seconds at terminals
- Typical IR: Less than 1mA above 10V
- Fast response time: Typically less than 1.0ps from 0 volt to BV min.
- Built-in strain relief
- Excellent clamping capability
- Low profile package
- Case: Molded plastic
- Epoxy: UL 94V-0 rate flame retardant
- Lead: Solderable per MIL-STD-202, method 208 guaranteed
- Polarity: Color band denotes cathode end except Bidirectional
- Mounting position: Any
- Weight: 0.063 grams
Technical Specifications
| Parameter | Symbol | Value | Unit | Notes |
| Maximum steady state power dissipation at TL = 75 C | Ptot | 1000 | mW | (1) |
| Maximum steady state power dissipation at TA = 25 C | Ptot | 500 | mW | (2) |
| Maximum instantaneous forward voltage at 200 mA for all types | VF | 1.5 | V | (3) |
| Operating junction and storage temperature range | TJ, TSTG | -65 to +150 | C | |
| Typical thermal resistance, junction to lead | JL | 50 | C/W | (1) |
| Typical thermal resistance, junction to ambient | JA | 250 | C/W | (2) |
| Type Marking | Zener Voltage Range VZT (at IZT) (V) | IZT (mA) | ZZT Max (at IZT) () | IR at VR Max (A) | VR (V) | IZM (mA) | VF (at IF=200mA) (V) |
| SMA4728A | 4.84 - 5.36 | 10 | 10 | 100 | 3.3 | 186 | 1.5 |
| SMA4729A | 5.32 - 5.92 | 10 | 9.0 | 100 | 3.7 | 170 | 1.5 |
| SMA4730A | 5.86 - 6.51 | 10 | 9.0 | 100 | 4.0 | 154 | 1.5 |
| SMA4731A | 6.46 - 7.18 | 10 | 8.0 | 100 | 4.3 | 140 | 1.5 |
| SMA4732A | 7.12 - 7.88 | 10 | 7.0 | 50 | 4.7 | 127 | 1.5 |
| SMA4733A | 7.79 - 8.67 | 10 | 5.0 | 25 | 5.1 | 116 | 1.5 |
| SMA4734A | 8.60 - 9.59 | 10 | 4.0 | 10 | 5.6 | 104 | 1.5 |
| SMA4735A | 9.50 - 10.5 | 10 | 3.5 | 10 | 6.0 | 95 | 1.5 |
| SMA4736A | 10.4 - 11.6 | 10 | 3.1 | 10 | 6.5 | 86 | 1.5 |
| SMA4737A | 11.4 - 12.6 | 10 | 2.8 | 10 | 7.0 | 79 | 1.5 |
| SMA4738A | 12.4 - 13.8 | 5 | 2.0 | 5 | 7.5 | 71 | 1.5 |
| SMA4739A | 13.8 - 15.2 | 5 | 1.9 | 5 | 8.0 | 63 | 1.5 |
| SMA4740A | 15.2 - 17.1 | 5 | 1.7 | 5 | 9.0 | 58 | 1.5 |
| SMA4741A | 16.8 - 19.0 | 5 | 1.6 | 5 | 9.5 | 52 | 1.5 |
| SMA4742A | 19.0 - 21.2 | 5 | 1.4 | 5 | 10 | 47 | 1.5 |
| SMA4743A | 20.8 - 23.3 | 5 | 1.2 | 5 | 11 | 43 | 1.5 |
| SMA4744A | 22.8 - 25.3 | 5 | 1.0 | 5 | 12 | 38 | 1.5 |
| SMA4745A | 25.3 - 28.9 | 5 | 1.0 | 5 | 13 | 35 | 1.5 |
| SMA4746A | 28.2 - 31.3 | 5 | 1.0 | 5 | 14 | 32 | 1.5 |
| SMA4747A | 31.3 - 34.9 | 5 | 1.0 | 5 | 15 | 30 | 1.5 |
| SMA4748A | 34.2 - 37.9 | 5 | 1.0 | 5 | 16 | 28 | 1.5 |
| SMA4749A | 37.2 - 41.5 | 5 | 1.0 | 5 | 18 | 26 | 1.5 |
| SMA4750A | 40.9 - 45.6 | 5 | 1.0 | 5 | 20 | 24 | 1.5 |
| SMA4751A | 44.9 - 49.8 | 5 | 1.0 | 5 | 22 | 23 | 1.5 |
| SMA4752A | 48.6 - 54.0 | 5 | 1.0 | 5 | 24 | 21 | 1.5 |
| SMA4753A | 53.6 - 58.9 | 5 | 1.0 | 5 | 27 | 19 | 1.5 |
| SMA4754A | 58.8 - 65.6 | 5 | 1.0 | 5 | 30 | 18 | 1.5 |
| SMA4755A | 65.6 - 72.4 | 5 | 1.0 | 5 | 33 | 17 | 1.5 |
| SMA4756A | 71.7 - 78.8 | 5 | 1.0 | 5 | 36 | 16 | 1.5 |
| SMA4757A | 78.8 - 87.0 | 5 | 1.0 | 5 | 39 | 15 | 1.5 |
| SMA4758A | 86.0 - 95.0 | 5 | 1.0 | 5 | 43 | 14 | 1.5 |
| SMA4759A | 96.0 - 106 | 5 | 1.0 | 5 | 47 | 13 | 1.5 |
| SMA4760A | 105 - 116 | 5 | 1.0 | 5 | 51 | 12 | 1.5 |
| SMA4761A | 116 - 127 | 5 | 1.0 | 5 | 56 | 11 | 1.5 |
| SMA4762A | 127 - 140 | 5 | 1.0 | 5 | 62 | 10 | 1.5 |
| SMA4763A | 140 - 155 | 5 | 1.0 | 5 | 68 | 9.5 | 1.5 |
| SMA4764A | 155 - 170 | 5 | 1.0 | 5 | 75 | 9.0 | 1.5 |
| SMA4765A | 170 - 189 | 5 | 1.0 | 5 | 82 | 8.5 | 1.5 |
| SMA4766A | 189 - 209 | 5 | 1.0 | 5 | 91 | 7.8 | 1.5 |
| SMA4767A | 209 - 231 | 5 | 1.0 | 5 | 100 | 7.0 | 1.5 |
| SMA4768A | 231 - 251 | 5 | 1.0 | 5 | 110 | 6.3 | 1.5 |
| SMA4769A | 251 - 271 | 5 | 1.0 | 5 | 120 | 5.8 | 1.5 |
| SMA4770A | 271 - 291 | 5 | 1.0 | 5 | 130 | 5.2 | 1.5 |
| SMA4771A | 291 - 313 | 5 | 1.0 | 5 | 140 | 4.7 | 1.5 |
| SMA4772A | 315 - 346 | 5 | 1.0 | 5 | 150 | 4.3 | 1.5 |
| SMA4773A | 346 - 381 | 5 | 1.0 | 5 | 160 | 3.9 | 1.5 |
| SMA4774A | 381 - 419 | 5 | 1.0 | 5 | 180 | 3.7 | 1.5 |
| SMA4775A | 419 - 461 | 5 | 1.0 | 5 | 200 | 3.4 | 1.5 |
| SMA4776A | 461 - 507 | 5 | 1.0 | 5 | 230 | 3.1 | 1.5 |
| SMA4777A | 507 - 558 | 5 | 1.0 | 5 | 250 | 2.8 | 1.5 |
2408021727_GOODWORK-1SMA4749A_C22449609.pdf
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