FJX4008RTF

$0.05

Description：TRANS PREBIAS PNP 50V SC70-3
Series：-

SKU:9c37fa0ae529 Category: Single, Pre-Biased Bipolar Transistors Brand: Fairchild Semiconductor

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Product introduction

Product Detailed Parameters

Description：TRANS PREBIAS PNP 50V SC70-3
Series：-
Mfr：Fairchild Semiconductor
Package：Bulk
Resistors Included：R1 and R2
Transistor Type：PNP - Pre-Biased
Current - Collector (Ic) (Max)：100 mA
Voltage - Collector Emitter Breakdown (Max)：50 V
Resistor - Base (R1)：47 kOhms
Resistor - Emitter Base (R2)：22 kOhms
DC Current Gain (hFE) (Min) @ Ic, Vce：56 @ 5mA, 5V
Vce Saturation (Max) @ Ib, Ic：300mV @ 500µA, 10mA
Current - Collector Cutoff (Max)：100nA (ICBO)
Frequency - Transition：200 MHz
Power - Max：200 mW
Grade：-
Qualification：-
Mounting Type：Surface Mount
Package / Case：SC-70, SOT-323
Supplier Device Package：SC-70-3 (SOT323)

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FJX4008RTF

Overview

The FJX4008RTF is a PNP pre-biased bipolar junction transistor manufactured by Fairchild Semiconductor. It features a maximum collector-emitter voltage of 50V and a continuous collector current of 100mA. The device includes an integrated base resistor with a typical value of 4.7kOhms and a typical resistor ratio of 0.47. Packaged in a surface-mount SOT-323 (SC-70-3) case, it supports a peak DC collector current of 100mA and operates at temperatures up to +150°C. The component has a minimum DC current gain (hFE) of 30.

Feature Summary

Integrated pre-biasing circuitry for simplified drive requirements
Compact surface-mount packaging suitable for space-constrained designs
High voltage capability for robust switching applications

Applications

General-purpose switching circuits
Driver stages for logic interfaces
Signal path control in portable devices

Procurement Notes

Verify the specific manufacturer designation, as Fairchild Semiconductor was acquired by ON Semiconductor. Ensure the ordering suffix matches the required tape and reel packaging configuration. Confirm RoHS compliance status and package variant accuracy against the official datasheet before finalizing procurement orders.

Selection Notes

Select this component for applications requiring a compact PNP switch with built-in biasing. Consider the 50V voltage rating and 100mA current limit when designing load circuits. Evaluate the thermal performance within the SOT-323 package constraints for high-temperature environments.

Part Context

This part belongs to the Fairchild pre-biased transistor series, designed to replace discrete resistor-transistor networks. It simplifies PCB layout by integrating biasing components directly onto the silicon die, reducing component count and assembly complexity in consumer electronics and industrial control modules.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify pinout compatibility and electrical specifications carefully if considering alternative manufacturers.

How to buy

Online and offline orders are supported. If the item is available for online purchase, you can place it in the cart; for wholesale pricing, please contact our product manager for a quote.

Payment Method

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Delivery time

In-stock items usually ship within 24 hours. Otherwise, shipment is arranged 1 to 2 days after the items arrive at our warehouse. Timing depends on destination and shipping method.

Freight calculation

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Mode of Transportation

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Return and Refund

Returns are accepted within 60 days of invoice with RMA approval. Items must be resalable; original invoice and test report are required. No returns for customer errors.