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25,098 pcs
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25098 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request | |
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4,000 pcs
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4000 pcs | On Request | 1 | On Request | On Request | On Request | On Request | 2026-02-16 21:33:16 | |
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78 pcs
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78 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request | |
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64 pcs
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64 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request | |
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56 pcs
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56 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request | |
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38 pcs
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38 pcs | On Request | 10 | On Request | On Request | On Request | On Request | On Request | |
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18 pcs
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18 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request | |
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6 pcs
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6 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request |
| Category | |
| Manufacturer Name | |
| Current | |
| DC Current Gain (hFE) (Min) @ Ic, Vce | |
| Lead Spacing | |
| Lead Style | |
| Mounting Type | |
| Operating Temperature | |
| Power | |
| Supplier Device Package | |
| Tape & Reel | |
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| Vce Saturation (Max) @ Ib, Ic | |
| Voltage |
The STMicroelectronics ULN2804A is an 8-channel NPN Darlington transistor array housed in a standard 18-DIP package. This component is designed for applications requiring high voltage and current switching capabilities.
Key electrical characteristics include a 50V output voltage rating and a continuous collector current of 500mA per channel. The device boasts a high DC current gain (hFE) of 1000 minimum at 350mA and 2V, with a Vce saturation of 1.6V maximum at 500µA and 350mA. It can dissipate up to 2.25W of power.
The ULN2804A operates within a temperature range of -20°C to 150°C (TJ). Its through-hole mounting type makes it suitable for various PCB designs. The RoHS3 compliant status indicates adherence to environmental regulations.
This transistor array is ideal for driving loads such as relays, solenoids, and stepper motors in industrial and consumer electronics. Its Darlington configuration provides high current gain, simplifying drive circuitry.
| Qty | Low | High |
|---|---|---|
| 1+ | $0.99 | $0.99 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The maximum collector-emitter voltage rating is 50V.
It is available in an 18-DIP (0.300 inch, 7.62mm) through-hole package.
The operating junction temperature range is -20°C to 150°C.
It contains 8 NPN Darlington transistor pairs.
The minimum DC current gain (hFE) is 1000 at 350mA collector current and 2V Vce.
The maximum Vce saturation voltage is 1.6V at 500µA base current and 350mA collector current.
The total power dissipation is 2.25W.