Hefei Purple Horn E-Commerce Co., Ltd.
| Operating Junction Temperature Range | -65℃~+150℃ |
| Impedance(Zzt) | 20Ω |
| Diode Configuration | Independent |
| Pd - Power Dissipation | 500mW |
| Zener Voltage(Range) | 16.8V~19.2V |
| Zener Voltage(Nom) | 18V |
| Description | Zener Diode Independent 18V 500mW Surface Mount SMA |
| Mfr. Part # | 1SMA4746A |
| Package | SMA |
| Model Number | 1SMA4746A |
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Product Specification
| Operating Junction Temperature Range | -65℃~+150℃ | Impedance(Zzt) | 20Ω |
| Diode Configuration | Independent | Pd - Power Dissipation | 500mW |
| Zener Voltage(Range) | 16.8V~19.2V | Zener Voltage(Nom) | 18V |
| Description | Zener Diode Independent 18V 500mW Surface Mount SMA | Mfr. Part # | 1SMA4746A |
| Package | SMA | Model Number | 1SMA4746A |
The 1SMA4728A THRU 1SMA4777A series are surface mount power voltage-regulating diodes designed for a wide range of applications. They feature high temperature soldering, fast response time, excellent clamping capability, and a low profile package. These diodes are suitable for general-purpose regulation and are available in a voltage range from 3.3 to 300 Volts with a power rating of 1000mW.
| Parameter | Symbol | 1SMA4728A THRU 1SMA4777A | Unit |
| Maximum steady state power dissipation at TL = 75 C (1) | Ptot | 1000 | mW |
| Maximum steady state power dissipation at TA = 25 C (2) | Ptot | 500 | mW |
| Maximum instantaneous forward voltage at 200 mA for all types (3) | VF | 1.5 | V |
| Operating junction and storage temperature range | TJ, TSTG | -65 to +150 | C |
| Typical thermal resistance, junction to lead (1) | JL | 50 | C/W |
| Typical thermal resistance, junction to ambient (2) | JA | 250 | C/W |
| Reverse Zener voltage at IZT | VZ | Nominal Voltage Range: 3.3 to 300 | V |
| Zener Voltage Range (VZT): 4.84 to 313 | |||
| Reverse current | IZT | Max: 10 (for VZ <= 13V), 5 (for VZ > 13V) | mA |
| Max: 10 (for VZ <= 13V), 5 (for VZ > 13V) | |||
| Maximum Zener impedance at IZT | ZZT | See Table | |
| Reverse current at VR | IR | Max: 1.0 (at VR=1.0V for VZ=3.3V), 0.25 (at VR=200V for VZ=300V) | A |
| Reverse voltage | VR | See Table | V |
| Forward current | IF | 1000 | mA |
| Forward voltage at IF | VF | See Table | V |
| Admissible Zener Current | IZM | See Table | mA |
| Type Marking | Zener Voltage Range VZT (at IZT) (V) | IZT (mA) | ZZT (at IZT) Max () | IR at VR Max (A) | IZM (mA) | VF at IF Max (V) |
| SMA4728A | 4.84 - 5.36 | 10 | 49 | 100 | 186 | 1.0 |
| SMA4729A | 5.32 - 5.92 | 10 | 45 | 100 | 170 | 1.0 |
| SMA4730A | 5.86 - 6.51 | 10 | 41 | 100 | 154 | 1.0 |
| SMA4731A | 6.46 - 7.18 | 10 | 34 | 100 | 127 | 1.0 |
| SMA4732A | 7.12 - 7.88 | 10 | 31 | 100 | 116 | 1.0 |
| SMA4733A | 7.79 - 8.67 | 10 | 28 | 100 | 104 | 1.0 |
| SMA4734A | 8.60 - 9.59 | 10 | 25 | 100 | 95 | 1.0 |
| SMA4735A | 9.50 - 10.5 | 10 | 23 | 100 | 86 | 1.0 |
| SMA4736A | 10.4 - 11.6 | 10 | 21 | 100 | 79 | 1.0 |
| SMA4737A | 11.4 - 12.6 | 10 | 19 | 100 | 71 | 1.0 |
| SMA4738A | 12.4 - 14.1 | 5 | 17 | 50 | 69 | 1.0 |
| SMA4739A | 13.8 - 15.8 | 5 | 16 | 50 | 64 | 1.0 |
| SMA4740A | 15.2 - 17.1 | 5 | 14 | 50 | 58 | 1.0 |
| SMA4741A | 16.8 - 19.2 | 5 | 13 | 50 | 53 | 1.0 |
| SMA4742A | 19.0 - 21.2 | 5 | 12 | 50 | 49 | 1.0 |
| SMA4743A | 20.8 - 23.3 | 5 | 11 | 50 | 47 | 1.0 |
| SMA4744A | 22.8 - 26.0 | 5 | 11 | 50 | 43 | 1.0 |
| SMA4745A | 25.3 - 28.9 | 5 | 9.5 | 50 | 40 | 1.0 |
| SMA4746A | 28.2 - 31.3 | 5 | 9.0 | 25 | 37 | 1.0 |
| SMA4747A | 31.3 - 34.9 | 5 | 9.0 | 25 | 35 | 1.0 |
| SMA4748A | 34.2 - 37.9 | 5 | 8.0 | 25 | 32 | 1.0 |
| SMA4749A | 37.2 - 41.5 | 5 | 7.5 | 25 | 30 | 1.0 |
| SMA4750A | 40 - 45 | 5 | 7.0 | 25 | 27 | 1.0 |
| SMA4751A | 45 - 50 | 5 | 6.5 | 25 | 25 | 1.0 |
| SMA4752A | 51 - 56 | 5 | 6.0 | 25 | 23 | 1.0 |
| SMA4753A | 56 - 62 | 5 | 5.5 | 25 | 21 | 1.0 |
| SMA4754A | 62 - 68 | 5 | 5.0 | 25 | 20 | 1.0 |
| SMA4755A | 68 - 75 | 5 | 4.5 | 25 | 18 | 1.0 |
| SMA4756A | 75 - 82 | 5 | 4.0 | 25 | 17 | 1.0 |
| SMA4757A | 82 - 91 | 5 | 3.7 | 25 | 15 | 1.0 |
| SMA4758A | 91 - 100 | 5 | 3.3 | 25 | 14 | 1.0 |
| SMA4759A | 104 - 116 | 5 | 3.1 | 25 | 12 | 1.0 |
| SMA4760A | 114 - 127 | 5 | 2.8 | 25 | 11 | 1.0 |
| SMA4761A | 124 - 141 | 5 | 2.6 | 25 | 10 | 1.0 |
| SMA4762A | 138 - 158 | 5 | 2.4 | 25 | 9.0 | 1.0 |
| SMA4763A | 152 - 171 | 5 | 2.2 | 25 | 8.0 | 1.0 |
| SMA4764A | 168 - 192 | 5 | 2.0 | 25 | 7.0 | 1.0 |
| SMA4765A | 190 - 212 | 5 | 1.9 | 25 | 6.0 | 1.0 |
| SMA4766A | 208 - 233 | 5 | 1.7 | 25 | 5.0 | 1.0 |
| SMA4767A | 228 - 260 | 5 | 1.6 | 25 | 5.0 | 1.0 |
| SMA4768A | 253 - 289 | 5 | 1.5 | 25 | 4.0 | 1.0 |
| SMA4769A | 282 - 313 | 5 | 1.4 | 25 | 4.0 | 1.0 |
| SMA4770A | 313 - 349 | 5 | 1.2 | 25 | 3.0 | 1.0 |
| SMA4771A | 342 - 379 | 5 | 1.0 | 25 | 3.0 | 1.0 |
| SMA4772A | 372 - 415 | 5 | 1.0 | 25 | 2.5 | 1.0 |
| SMA4773A | 400 - 450 | 5 | 1.0 | 25 | 2.3 | 1.0 |
| SMA4774A | 450 - 500 | 5 | 1.0 | 25 | 2.0 | 1.0 |
| SMA4775A | 500 - 550 | 5 | 1.0 | 25 | 1.9 | 1.0 |
| SMA4776A | 550 - 600 | 5 | 1.0 | 25 | 1.7 | 1.0 |
| SMA4777A | 600 - 650 | 5 | 1.0 | 25 | 1.6 | 1.0 |
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Agent,Importer
Year Established:
2009
Employee Number:
300~500
Ecer Certification：
Verified Supplier
Company Profile Hefei Purple Horn E-Commerce Co., Ltd. is a professional company focus on integrated circuit ic business. Hefei Purple Horn E-Commerce Co., Ltd. will also responsible with exporting and logistic business. there is professional factory Beijing Silk Road which focus on desigining and... Company Profile Hefei Purple Horn E-Commerce Co., Ltd. is a professional company focus on integrated circuit ic business. Hefei Purple Horn E-Commerce Co., Ltd. will also responsible with exporting and logistic business. there is professional factory Beijing Silk Road which focus on desigining and...
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