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Product Detailed Parameters
- Description：TRANS NPN 45V 0.1A TO-18
- Series：-
- Mfr：Central Semiconductor Corp
- Package：Bulk
- Transistor Type：NPN
- Current - Collector (Ic) (Max)：100 mA
- Voltage - Collector Emitter Breakdown (Max)：45 V
- Vce Saturation (Max) @ Ib, Ic：700mV @ 2.5mA, 100mA
- Current - Collector Cutoff (Max)：10nA (ICBO)
- DC Current Gain (hFE) (Min) @ Ic, Vce：180 @ 2mA, 5V
- Power - Max：1 W
- Frequency - Transition：150MHz
- Operating Temperature：-65°C ~ 200°C (TJ)
- Mounting Type：Through Hole
- Package / Case：TO-206AA, TO-18-3 Metal Can
- Supplier Device Package：TO-18
- Grade：-
- Qualification：-
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Overview
The BCY59-VIII PBFREE is an NPN switching transistor manufactured by Central Semiconductor Corp. It utilizes a TO-18 metal can package for through-hole mounting. The device features a collector-base voltage of 45 V and an emitter-base voltage of 7 V. Maximum DC collector current is rated at 100 mA, with a power dissipation capacity of 340 mW. The transition frequency is specified at 150 MHz. Operating temperature ranges from -65°C to +200°C junction temperature.
Feature Summary
- NPN switching configuration in a hermetically sealed metal case
- High junction temperature capability up to 200°C
- Low current operation suitable for general switching applications
Applications
- General purpose switching circuits
- Amplification stages requiring low current handling
Procurement Notes
Verify the specific suffix VIII against official datasheets to confirm parameter variations compared to standard BCY59 variants. Confirm RoHS compliance status and lead times directly with the manufacturer or authorized distributors, as availability may vary. Ensure the TO-18 package dimensions match the target PCB layout requirements before finalizing procurement decisions.
Selection Notes
Select this component for designs requiring robust NPN switching in a metal package. Consider the 45V collector-base voltage limit and 100mA current rating when designing circuit loads. The high junction temperature rating allows for operation in demanding thermal environments where plastic packages might fail.
Part Context
This part belongs to the BCY59 series of NPN switching transistors originally defined by Philips Semiconductors. Central Semiconductor produces the PBFREE variant, adhering to the original electrical specifications while ensuring environmental compliance. The TO-18 package provides mechanical stability and thermal performance distinct from modern plastic alternatives.
Replacement Considerations
The BCY58 is a lower voltage variant within the same family. The BCY78 serves as the PNP complement. Verify pinout compatibility and voltage margins when substituting these related parts.
