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Product Detailed Parameters
- Description：TRANS NPN 30V 100MA SOT23
- Series：*
- Mfr：onsemi
- Package：Cut Tape (CT)
- Transistor Type：-
- Current - Collector (Ic) (Max)：-
- Voltage - Collector Emitter Breakdown (Max)：-
- Vce Saturation (Max) @ Ib, Ic：-
- Current - Collector Cutoff (Max)：-
- DC Current Gain (hFE) (Min) @ Ic, Vce：-
- Power - Max：-
- Frequency - Transition：-
- Operating Temperature：-
- Mounting Type：-
- Package / Case：-
- Supplier Device Package：-
- Grade：-
- Qualification：-
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Overview
The onsemi BC848ALT1 is an NPN silicon general-purpose transistor housed in a surface-mount SOT-23 package. It features a maximum collector-emitter voltage of 30 V and a continuous collector current rating of 100 mA. The device offers a minimum DC current gain (hFE) of 110 at low currents, scaling up to 520 at higher drive levels. Electrical characteristics include a transition frequency (fT) of 100 MHz and a total power dissipation of 225 mW on standard FR-5 boards. Operating temperatures range from -55°C to +150°C.
Feature Summary
- NPN epitaxial planar silicon construction for reliable switching and amplification
- Lead-free packaging compliant with RoHS directives
- High electrostatic discharge protection exceeding 4000 V via Human Body Model
- Moisture sensitivity level 1 classification for robust handling
Applications
- General purpose amplifier circuits
- Switching applications requiring low voltage operation
- Driver stages for logic interfaces
Procurement Notes
Verify the specific suffix against official documentation to confirm lead-free status and tape-and-reel specifications. Ensure the ordering code matches the required hFE binning grade. Confirm that the procurement channel sources directly from authorized distributors to guarantee component authenticity and traceability.
Selection Notes
Select this component when a 30 V breakdown voltage is sufficient for the application. Compare the 100 mA current limit against peak load requirements. Evaluate the thermal resistance of 556 °C/W against the expected ambient temperature and board layout constraints to ensure junction temperatures remain within safe operating limits.
Part Context
This part belongs to the BC846ALT1 series, which includes variants with different voltage ratings such as the BC846 (65 V) and BC847 (45 V). All members share the same SOT-23 footprint and pinout configuration, facilitating design flexibility while maintaining consistent mechanical integration across product lines.
Replacement Considerations
BC848ALT1G serves as the direct lead-free equivalent within the same series.
FAQ
What is the maximum collector-emitter voltage for the BC848ALT1?
The maximum collector-emitter voltage (VCEO) is 30 V.
Does the BC848ALT1 meet RoHS standards?
Yes, lead-free packages are available and compliant with EU RoHS directives.
What is the ESD protection rating for this device?
The device has an ESD rating greater than 4000 V according to the Human Body Model.
