| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
|---|---|---|---|---|---|---|---|---|---|
|
19,131 pcs
|
19131 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request | |
|
19,131 pcs
|
19131 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request |
| Category | |
| Manufacturer Name | |
| Current | |
| Forward Voltage | |
| Impedance (Max) (Zzt) | |
| Impedance (Zzt) | |
| Lead Style | |
| Maximum Zener Current | |
| Mounting Type | |
| Operating Temperature | |
| Operating Temperature Range | |
| Package / Case | |
| Power | |
| Power Derating | |
| Power Dissipation | |
| Reverse Leakage Current | |
| Storage Temperature | |
| Supplier Device Package | |
| Tape & Reel | |
| Termination Style | |
| Tolerance | |
| Voltage | |
| Zener Test Current | |
| Zener Voltage | |
| Zener Voltage Tolerance |
The 1N749ATR is a Zener diode from ON Semiconductor designed for voltage regulation and reference applications. It provides a nominal Zener voltage of 4.3V at a test current of 20mA with a tolerance of ±5%. The device can dissipate up to 500mW of power at lead temperatures up to 75°C, with a derating factor of 4.0mW/°C above that temperature.
Electrical characteristics include a maximum Zener impedance of 22Ω at the test current and a maximum Zener current of 95mA. Reverse leakage current is specified at 2µA maximum at a reverse voltage of 1V. The forward voltage is 1.5V maximum at a forward current of 200mA.
The diode is housed in a DO-35 (DO-204AH) glass package with axial leads, suitable for through-hole mounting. It operates over a junction temperature range of -65°C to +200°C. The cathode is identified by a color band on the body.
The nominal Zener voltage is 4.3V at a test current of 20mA, with a tolerance of ±5%.
The maximum power dissipation is 500mW at lead temperatures up to 75°C, with a derating factor of 4.0mW/°C above 75°C.
It is available in a DO-35 (DO-204AH) glass package with axial leads for through-hole mounting.
The maximum forward voltage is 1.5V at a forward current of 200mA.
The operating and storage temperature range is -65°C to +200°C.