ChipApex | Global Electronic Components Supplier
SEARCH
Search Product
Search Post
— IC芯片 | 连接器 | 传感器 | 被动器件 —
Consult the customer manager about the wholesale price.
consultation hotline：86-132-6715-2157
email：[email protected]
Contact the product manager for consultation. One-stop consultation is available.
Do you want a lower wholesale price? Please send us your inquiry and we will reply immediately.
Product Detailed Parameters
- Description：45V 200MW 250@100MA,1V 500MA NPN
- Series：-
- Mfr：Shenzhen Slkormicro Semicon Co., Ltd.
- 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：250 @ 100mA, 1V
- Power - Max：300 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：SOT-23
- Grade：-
- Qualification：-
Download product information
Overview
The BC817-40W is an NPN silicon audio frequency transistor manufactured by Infineon Technologies AG, housed in a SOT-23 surface-mount package. It features a maximum collector-emitter voltage of 45 V and a continuous collector current of 500 mA. The device exhibits a transition frequency of 100 MHz and a maximum power dissipation of 200 mW. DC current gain is specified at a minimum of 250 under standard test conditions. Operating junction temperature ranges from -55°C to 150°C.
Feature Summary
- Designed for general audio frequency applications with high collector current capability
- Provides high current gain characteristics suitable for amplification tasks
- Features low collector-emitter saturation voltage for efficient switching
Applications
- General audio frequency circuits
- Signal amplification stages
- Switching applications requiring small signal handling
Procurement Notes
Verify the manufacturer origin carefully, as public records attribute this specific part number primarily to Infineon Technologies AG rather than Shenzhen Slkormicro Semicon Co., Ltd. Confirm RoHS compliance status and datasheet revision before integration. Ensure the supplier provides official traceability documentation matching the component markings.
Selection Notes
Select this component when a small-signal NPN transistor with moderate current handling and audio frequency performance is required. Compare against complementary PNP types like the BC807-40W for push-pull configurations. Evaluate thermal management requirements given the 200 mW power dissipation limit in the SOT-23 package.
Part Context
This component belongs to the BC817 series of NPN silicon transistors widely used in consumer electronics and industrial control. The '40' suffix typically denotes the voltage grade (45V), while 'W' indicates the SOT-23 surface-mount packaging variant. It serves as a general-purpose replacement for legacy through-hole equivalents in modern compact designs.
Replacement Considerations
Publicly confirmed substitute part numbers include BC817-40W-AQ for automotive-grade requirements and BC817K40E6433HTMA1 from Infineon. Cross-reference electrical parameters such as hFE bins and saturation voltages to ensure functional equivalence in existing circuit layouts.
