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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：250 @ 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 BC817-40-7-F is a 45V NPN small signal transistor manufactured by Diodes Incorporated. It utilizes epitaxial planar die construction and is housed in an 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 250 to 600 at IC=100mA, VCE=1V, and a transition frequency (fT) of 100MHz. Power dissipation is rated at 310mW under standard conditions. The component is qualified to AEC-Q101 standards for high reliability.
Feature Summary
- Epitaxial planar die construction designed for automatic insertion
- Qualified to AEC-Q101 automotive standards for high reliability
- Totally lead-free and fully RoHS compliant
- Halogen and antimony free green device
Applications
- General-purpose switching applications
- Audio frequency (AF) amplifier circuits
Procurement Notes
Verify the specific ordering suffix matches the required reel size and tape width configuration. Confirm that the AEC-Q101 qualification aligns with target application requirements. Ensure compliance with moisture sensitivity level 1 per J-STD-020 during storage and handling. Check for any updates to the datasheet revision number before finalizing procurement specifications.
Selection Notes
Select this component when a 45V NPN transistor with a minimum hFE of 250 is required. The SOT23 package is suitable for space-constrained surface-mount designs. Consider the 310mW power dissipation limit and thermal resistance values for heat management. Verify compatibility with complementary PNP types if push-pull configurations are needed.
Part Context
This part belongs to the BC817 series of general-purpose NPN transistors from Diodes Incorporated. The series includes variants with different current gain ranges, such as BC817-16 and BC817-25. The -7-F suffix indicates the specific packaging format and compliance status defined by the manufacturer.
Replacement Considerations
BC817-40Q-7-F
FAQ
What is the DC current gain range for the BC817-40 variant?
The DC current gain (hFE) ranges from 250 to 600 when measured at IC = 100mA and VCE = 1.0V.
Is the BC817-40-7-F suitable for automotive applications?
Yes, the device is qualified to AEC-Q101 standards for high reliability.
What is the maximum collector current rating?
The maximum continuous collector current is 0.5A, with a peak collector current rating of 1.0A.
