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Product Detailed Parameters
- Description：TRANS NPN 45V 0.5A TO-236AB
- Series：-
- Mfr：Nexperia USA Inc.
- Package：Tape & Reel (TR)
- 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：250 @ 100mA, 1V
- Power - Max：250 mW
- Frequency - Transition：100MHz
- Operating Temperature：150°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：TO-236-3, SC-59, SOT-23-3
- Supplier Device Package：TO-236AB
- Grade：-
- Qualification：-
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Overview
The Nexperia BC817-40/SNR is an NPN general-purpose transistor housed in a SOT23 (TO-236AB) surface-mount package. It supports a maximum collector current of 500 mA and a collector-emitter voltage of 45 V. The device features a DC current gain range of 250 to 600 at IC = 100 mA and VCE = 1 V. Peak collector current reaches 1 A for single pulses up to 1 ms. Total power dissipation is rated at 250 mW at Tamb ≤ 25 °C, with a junction temperature limit of 150 °C.
Feature Summary
- High current capability suitable for demanding switching loads
- Three distinct current gain selections available within the series
Applications
- General-purpose switching circuits
- Amplification stages
Procurement Notes
Verify the specific ordering suffix against the manufacturer's official documentation to confirm packaging details and availability status. Confirm that the component meets all required environmental and operational specifications for the intended design application before finalizing procurement decisions.
Selection Notes
Select this variant when a high DC current gain is required compared to standard BC817 options. Ensure the circuit design accommodates the 45 V collector-emitter voltage rating and the 500 mA continuous current limit. Verify thermal management requirements based on the specified power dissipation limits under operating conditions.
Part Context
This component belongs to the BC817 series of NPN general-purpose transistors manufactured by Nexperia. The series includes variants with different current gain ranges, such as BC817-16 and BC817-25. All variants share the same SOT23 package and fundamental electrical ratings, differing primarily in their hFE classification.
Replacement Considerations
BC817-40,215
FAQ
What is the marking code for the BC817-40?
The marking code is 6C, followed by a placeholder for the manufacturing site code.
What is the peak collector current rating?
The peak collector current is 1 A for a single pulse duration of tp ≤ 1 ms at Tamb = 25 °C.
How does the BC817-40 differ from the standard BC817?
The BC817-40 has a minimum DC current gain of 250, whereas the standard BC817 has a minimum gain of 100 under the same test conditions.
