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Product Detailed Parameters
- Description：TRANS NPN 45V 0.5A SOT-23-3
- Series：-
- Mfr：Diodes Incorporated
- Package：Tape & Reel (TR),Cut Tape (CT)
- 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
- DC Current Gain (hFE) (Min) @ Ic, Vce：160 @ 100mA, 1V
- Power - Max：310 mW
- Frequency - Transition：100MHz
- Operating Temperature：-65°C ~ 150°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：TO-236-3, SC-59, SOT-23-3
- Supplier Device Package：SOT-23-3
- Grade：Automotive
- Qualification：AEC-Q101
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Overview
The BC817-25-7-F is a 45V NPN small signal transistor manufactured by Diodes Incorporated. It features an epitaxial planar die construction and is housed in a SOT23 surface-mount package. The device supports a maximum collector current of 0.5A with a peak collector current of 1.0A. Electrical characteristics include a DC current gain (hFE) range of 160 to 400 at IC=100mA, VCE=1V, and a gain-bandwidth product (fT) of 100MHz. Power dissipation reaches 310mW on standard PCBs and 350mW on large copper areas. Operating temperature ranges from -65°C to +150°C.
Feature Summary
- Epitaxial planar die construction for high reliability
- Qualified to AEC-Q101 standards for automotive applications
- Totally lead-free and fully RoHS compliant
- Halogen and antimony free green device
Applications
- General-purpose switching circuits
- Audio frequency (AF) amplifier stages
Procurement Notes
Verify the specific ordering suffix '-7-F' corresponds to the 3,000-unit reel size and K6B tape width as documented in the Diodes Incorporated datasheet DS11107. Confirm that the component meets the required AEC-Q101 qualification level if used in automotive contexts. Ensure compatibility with the specified SOT23 footprint dimensions during procurement planning.
Selection Notes
Select this component when a 45V NPN transistor with moderate current handling is required in a compact SOT23 package. The BC817-25 variant provides a specific hFE range of 160 to 400, suitable for applications needing consistent amplification factors. Consider the thermal resistance values and derating curves for power dissipation limits under varying ambient temperatures.
Part Context
This part belongs to the BC817 series of NPN general-purpose transistors, which includes variants like BC817-16 and BC817-40 differentiated primarily by their DC current gain specifications. The complementary PNP type available in the same series is the BC807. These devices are designed for surface-mount assembly and offer a balance of performance and physical size for modern electronic designs.
Replacement Considerations
BC817-16-7-F, BC817-40-7-F
FAQ
What is the DC current gain range for the BC817-25?
The DC current gain (hFE) for the BC817-25 ranges from 160 to 400 when measured at IC = 100mA and VCE = 1.0V.
Is the BC817-25-7-F suitable for automotive applications?
Yes, the device is qualified to AEC-Q101 standards for high reliability, making it suitable for automotive-compliant designs.
What is the maximum power dissipation capability?
Power dissipation is rated at 310 mW on a minimum recommended pad layout FR-4 PCB and up to 350 mW when mounted on a 15mm x 15mm 1oz copper area.
