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Product Detailed Parameters
- Description：TRANS NPN 45V 0.5A SOT23-3
- Series：-
- Mfr：onsemi
- Package：Bulk
- Transistor Type：NPN
- Current - Collector (Ic) (Max)：500 mA
- Voltage - Collector Emitter Breakdown (Max)：45 V
- Vce Saturation (Max) @ Ib, Ic：700mV @ 50mA, 500mA
- Current - Collector Cutoff (Max)：100nA (ICBO)
- DC Current Gain (hFE) (Min) @ Ic, Vce：160 @ 100mA, 1V
- Power - Max：300 mW
- Frequency - Transition：100MHz
- Operating Temperature：-
- Mounting Type：Surface Mount
- Package / Case：TO-236-3, SC-59, SOT-23-3
- Supplier Device Package：SOT-23-3 (TO-236)
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Overview
The BC817-25LT1 is an NPN silicon general-purpose transistor manufactured by onsemi. It features a collector-emitter voltage of 45 V and a continuous collector current of 500 mA dc. The device provides a DC current gain range of 160 to 400 at IC = 100 mA and VCE = 1.0 V. It operates within a junction temperature range of -65 to +150 °C and utilizes a SOT-23 (TO-236AB) surface-mount package.
Feature Summary
- NPN silicon construction for general-purpose switching and amplification
- Three selectable DC current gain ranges for design flexibility
- Pb-free, halogen-free, and BFR-free compliant packaging
Applications
- General-purpose switching circuits
- Amplifier stages
- Automotive applications requiring AEC-Q101 qualification
Procurement Notes
Verify the specific ordering suffix against official documentation to confirm package type and shipping quantity. Confirm RoHS compliance status and manufacturing site requirements if automotive or unique control changes are necessary for the application.
Selection Notes
Select this component when a standard NPN transistor with moderate current handling and defined gain bands is required. Ensure the operating conditions remain within the specified thermal limits and maximum ratings to maintain reliability.
Part Context
This part belongs to the BC817 series of NPN general-purpose transistors. It shares the same physical package and basic electrical structure as the BC817-16 and BC817-40 variants, differing primarily in the guaranteed DC current gain specifications.
Replacement Considerations
Compatible substitutes include BC817-25LT1G and SBC817-25LT1G from onsemi. Cross-manufacturer equivalents such as Nexperia BC817-25 may be considered after verifying pinout and parameter alignment.
FAQ
What is the DC current gain range for the BC817-25 variant?
The DC current gain (hFE) ranges from 160 to 400 when measured at IC = 100 mA and VCE = 1.0 V.
Is this device suitable for automotive applications?
Yes, devices with the NSV prefix are AEC-Q101 qualified and PPAP capable for automotive use.
