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Product Detailed Parameters
- Description：TRANS NPN 45V 0.5A TO-236AB
- Series：-
- Mfr：Nexperia USA Inc.
- 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 (ICBO)
- DC Current Gain (hFE) (Min) @ Ic, Vce：160 @ 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：Automotive
- Qualification：AEC-Q100
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Overview
The BC817K-25R is an NPN general-purpose transistor from the Nexperia BC817K series, housed in a small SOT23 (TO-236AB) Surface-Mounted Device plastic package. It features a collector-emitter voltage of 45 V and a continuous collector current of 500 mA. The device offers three current gain selections; the -25 variant provides a DC current gain range of 160 to 400 at VCE = 1 V and IC = 100 mA. It supports peak collector currents up to 1 A for single pulses and operates within a junction temperature range of -55 °C to +150 °C. The component is qualified under the AEC-Q101 standard.
Feature Summary
- Three distinct current gain selections available within the series
- High power dissipation capability for efficient thermal management
- Qualified for automotive applications per AEC-Q101 standards
Applications
- General-purpose switching circuits
- Amplification stages
- Automotive electronic systems
Procurement Notes
Verify the specific ordering suffix matches the required binning and packaging format. Confirm that the SOT23 footprint aligns with the target PCB design constraints. Ensure the selected gain range meets the circuit requirements. Check for any regional export control restrictions applicable to the component.
Selection Notes
Select this component when a compact NPN transistor with moderate current handling is required. The -25 gain bin suits applications needing consistent amplification factors. Consider the SOT23 package size for space-constrained designs. Evaluate thermal resistance values against the expected power dissipation in the final assembly.
Part Context
This part belongs to the BC817K series of NPN general-purpose transistors. The series includes variants with different current gain ranges, such as BC817K-16 and BC817K-40. All members share the same SOT23 package and electrical limits, differing primarily in their hFE classification. The PNP complement for this family is the BC807K series.
Replacement Considerations
Direct substitutes include other BC817K-25 parts from different manufacturers or equivalent NPN transistors with matching 45 V rating, 500 mA current capacity, and SOT23 package. Verify pinout compatibility and thermal characteristics before substitution.
FAQ
What is the DC current gain range for the BC817K-25?
The DC current gain (hFE) for the BC817K-25 ranges from 160 to 400 when measured at VCE = 1 V and IC = 100 mA.
Is the BC817K-25 suitable for automotive use?
Yes, the BC817K series has been qualified in accordance with the AEC-Q101 standard, making it suitable for automotive applications.
What is the maximum peak collector current?
The maximum peak collector current is 1 A for a single pulse with a duration of tp ≤ 1 ms.
