| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
|---|---|---|---|---|---|---|---|---|---|
|
370 pcs
|
370 pcs | On Request | 1 | On Request | On Request | 44+ | On Request | On Request |
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| Manufacturer Name | |
| Current | |
| Halogen Free | |
| Impedance (Max) (Zzt) | |
| Mounting Type | |
| Operating Temperature | |
| Peak Forward Surge Current | |
| Power | |
| Supplier Device Package | |
| Tape & Reel | |
| Tape Width | |
| Tolerance | |
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The PANJIT 1SMA4738 is a surface mount silicon Zener diode from the 1SMA4728-1SMA4757 series. It offers a nominal zener voltage of 8.2V with a tolerance of ±5%, ensuring precise voltage regulation. The device features a low zener impedance of 4.5Ω at 31mA (IZT) and 700Ω at 0.5mA (IZK), providing stable performance across operating conditions. Reverse leakage current is limited to 5µA at 6V reverse voltage.
With a power dissipation rating of 1W and a peak forward surge current of 10A (8.3ms half sine-wave), this diode is suitable for voltage regulation, overvoltage protection, and clamping applications. It operates over a junction temperature range of -55°C to 150°C, with a thermal resistance of 150°C/W when mounted on minimum recommended pad layout.
The device is packaged in a DO-214AC (SMA) surface mount package with solder plated terminals and a marking code of 738B. It is RoHS3 compliant, lead free, and halogen free, meeting environmental standards for modern electronics. The tape and reel packaging (12mm tape width) enables efficient automated assembly.
| Qty | Low | High |
|---|---|---|
| 1+ | $0.32 | $0.32 |
| 10+ | $0.19 | $0.19 |
| 100+ | $0.12 | $0.12 |
| 500+ | $0.09 | $0.09 |
| 1,800+ | $0.08 | $0.08 |
| 3,600+ | $0.05 | $0.05 |
| 9,000+ | $0.05 | $0.05 |
| 23,400+ | $0.05 | $0.05 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The nominal zener voltage is 8.2V with a tolerance of ±5% (min 7.79V, max 8.61V) at a test current of 31mA.
The power dissipation rating is 1 watt.
The device is available in a surface mount DO-214AC (SMA) package.
The zener impedance is 4.5Ω maximum at 31mA (IZT) and 700Ω maximum at 0.5mA (IZK).
The reverse leakage current is 5µA maximum at a reverse voltage of 6V.
The operating junction temperature range is -55°C to 150°C.