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Product Detailed Parameters
- Description：TRANS NPN 45V 0.2A SST3
- Series：-
- Mfr：Rohm Semiconductor
- Package：Tape & Reel (TR)
- Transistor Type：NPN
- Current - Collector (Ic) (Max)：200 mA
- Voltage - Collector Emitter Breakdown (Max)：45 V
- Vce Saturation (Max) @ Ib, Ic：550mV @ 1.25mA, 50mA
- Current - Collector Cutoff (Max)：100nA
- DC Current Gain (hFE) (Min) @ Ic, Vce：250 @ 2mA, 5V
- Power - Max：350 mW
- Frequency - Transition：125MHz
- Operating Temperature：150°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：TO-236-3, SC-59, SOT-23-3
- Supplier Device Package：SST3
- Grade：-
- Qualification：-
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Overview
The BCX70KT116 is a general-purpose NPN silicon epitaxial planar transistor manufactured by ROHM Semiconductor. It is housed in the SST3 (SOT-23) surface-mount package, measuring 2.4x2.9 mm with a thickness of 1.2 mm. The device features a collector-emitter voltage (Vceo) of 45 V and a continuous collector current (Ic) of 0.2 A. DC current gain (hFE) ranges from 140 to 630. Maximum power dissipation is 0.2 W, with an operating junction temperature up to 150°C and a storage range of -55°C to 150°C. It is supplied in tape-and-reel packaging with a unit quantity of 3000.
Feature Summary
- General-purpose amplification capability utilizing NPN silicon epitaxial planar construction.
- Surface-mount design compatible with automated assembly processes via SOT-23 packaging.
- High DC current gain performance suitable for signal amplification applications.
Applications
- General purpose amplification circuits
- Signal processing stages
- Low-power switching applications
Procurement Notes
Verify supply status carefully as this component is designated as not recommended for new designs. Confirm that the ordering part number BCX70KT116 matches the required SST3 package and taping specifications. Ensure compatibility with existing board layouts before procurement, as availability may be limited compared to active series components.
Selection Notes
Select this component for legacy system maintenance or replacement where the specific 45V Vceo and 0.2A Ic ratings are required. The high hFE range supports low-input current requirements. Consider the SOT-23 footprint constraints and thermal dissipation limits when designing for enclosed environments.
Part Context
This transistor belongs to ROHM's standard discrete semiconductor lineup, specifically designed for general-purpose use. It complements other small-signal transistors in the family, offering a balance of voltage handling and gain for consumer electronics and industrial control boards requiring compact NPN solutions.
Replacement Considerations
The BC847C is listed as a similar level replacement with the same pinout and package. Verify that the BC847C's hFE range (420 to 800) and Ic rating (0.1 A) meet the circuit requirements, noting the lower current capacity compared to the BCX70K.
