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Product Detailed Parameters
- Description：TRANS PREBIAS PNP 40V SOT523F
- Series：-
- Mfr：Fairchild Semiconductor
- Package：Bulk
- Resistors Included：R1 Only
- Transistor Type：PNP - Pre-Biased
- Current - Collector (Ic) (Max)：100 mA
- Voltage - Collector Emitter Breakdown (Max)：40 V
- Resistor - Base (R1)：4.7 kOhms
- Resistor - Emitter Base (R2)：-
- DC Current Gain (hFE) (Min) @ Ic, Vce：100 @ 1mA, 5V
- Vce Saturation (Max) @ Ib, Ic：300mV @ 1mA, 10mA
- Current - Collector Cutoff (Max)：100nA (ICBO)
- Frequency - Transition：200 MHz
- Power - Max：200 mW
- Grade：-
- Qualification：-
- Mounting Type：Surface Mount
- Package / Case：SC-89, SOT-490
- Supplier Device Package：SOT-523F
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Overview
The FJY4009R is a PNP epitaxial silicon transistor manufactured by Fairchild Semiconductor. It is a single, pre-biased bipolar junction transistor (BJT) designed for surface mount applications in the SOT-523F package. The device features an integrated bias network with specified internal resistors to simplify circuit design. Key electrical parameters include a collector-emitter voltage of -40 V, a continuous collector current of -100 mA, and a transition frequency of 200 MHz. Power dissipation is rated at 200 mW. This component is intended for use in switching, inverter, interface, and driver circuits.
Feature Summary
- Pre-biased configuration with built-in bias resistors
- PNP epitaxial silicon construction
- Surface mount packaging
Applications
- Switching circuits
- Inverter applications
- Interface circuits
- Driver circuits
Procurement Notes
Verify availability status as this product has been discontinued by Fairchild Semiconductor. Datasheets are provided for reference information only. Confirm compatibility with target application requirements before procurement. Check for equivalent replacement components from current manufacturers if new production is required. Ensure handling procedures align with surface mount device standards.
Selection Notes
Select this component for applications requiring a compact PNP transistor with integrated biasing. The SOT-523F package offers space efficiency for surface mount designs. Consider the 40 V voltage rating and 100 mA current limit when designing circuit loads. Verify that the 200 MHz transition frequency meets signal speed requirements. Evaluate thermal management needs based on the 200 mW power dissipation rating.
Part Context
The FJY4009R belongs to the family of pre-biased bipolar transistors offered by Fairchild Semiconductor. These devices integrate base and emitter resistors to reduce external component count and simplify PCB layout. Similar parts in the series may offer different voltage or current ratings while maintaining the same pre-biased functionality and package type.
Replacement Considerations
Check for cross-reference part numbers from other manufacturers offering similar PNP pre-biased transistors in SOT-523 packages. Verify pinout compatibility and electrical parameter equivalence. Consult manufacturer substitution guides for recommended alternatives.
