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Product Detailed Parameters
- Description：TRANS PREBIAS NPN 40V TO92-3
- Series：-
- Mfr：Fairchild Semiconductor
- Package：Bulk
- Resistors Included：R1 Only
- Transistor Type：NPN - Pre-Biased
- Current - Collector (Ic) (Max)：100 mA
- Voltage - Collector Emitter Breakdown (Max)：40 V
- Resistor - Base (R1)：10 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：250 MHz
- Power - Max：300 mW
- Grade：-
- Qualification：-
- Mounting Type：Through Hole
- Package / Case：TO-226-3, TO-92-3 (TO-226AA) Formed Leads
- Supplier Device Package：TO-92-3
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Overview
The FJN3310RTA is a single NPN pre-biased bipolar junction transistor manufactured by Fairchild Semiconductor. It features an epitaxial silicon construction housed in a TO-92-3 package with formed leads for through-hole mounting. The device supports a collector-emitter voltage of 40 V and a continuous collector current of 100 mA, with a power dissipation rating of 300 mW. It operates within a temperature range of -55°C to +150°C and includes built-in biasing resistors to simplify circuit design.
Feature Summary
- Integrates NPN transistor with built-in biasing network for simplified switching applications
- Epitaxial silicon construction ensures stable performance characteristics
- Through-hole TO-92-3 package facilitates easy PCB integration
Applications
- General-purpose switching circuits
- Driver stages for relays or LEDs
- Logic interface buffering
Procurement Notes
Verify the manufacturer designation as Fairchild Semiconductor, noting historical corporate transitions. Confirm the specific suffix RTA corresponds to the required tape-and-reel or bulk packaging configuration. Ensure RoHS compliance status aligns with project requirements. Cross-reference the datasheet revision date to confirm parameter validity against current design specifications.
Selection Notes
Select this component when a compact NPN switch with integrated base biasing is required. The 40V rating suits low-voltage logic systems. Consider the 100mA current limit for load driving capabilities. The TO-92 form factor is ideal for space-constrained through-hole designs compared to surface-mount alternatives.
Part Context
This part belongs to the family of pre-biased transistors designed to replace discrete resistor-transistor networks. It consolidates multiple components into a single three-pin package, reducing board space and assembly complexity while maintaining reliable switching performance for standard digital logic levels.
Replacement Considerations
Consult official substitution guides for equivalent pre-biased NPN transistors from onsemi or other manufacturers. Verify pinout compatibility and electrical ratings match before swapping. Generic BJT replacements require external biasing resistors.
