Rochester Electronics, LLCSC-70, SOT-323RoHS
FJX4009RTF
SMALL SIGNAL BIPOLAR TRANSISTOR
Category
Subcategory
Transistors Bipolar Bjt Single Pre Biased
Package
SC-70, SOT-323
Status
Obsolete
Datasheet
$0.05 / unit (market reference)
MOQ: 5770 pcs
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Parameters
| Parameter | Value |
|---|---|
| Brand | Rochester Electronics, LLC |
| Model | FJX4009RTF |
| Package / Case | SC-70, SOT-323 |
| Mounting Type | Surface Mount |
| Power Dissipation (Max) | 200 mW |
| Supplier Device Package | SC-70-3 (SOT323) |
| RoHS | RoHS |
| Part Status | Obsolete |
Application & Notes
FJX4009RTF by Rochester Electronics, LLC is an N-channel power MOSFET rated at N/A / N/A, commonly used in DC-DC converters, motor drivers, power supplies, and battery protection circuits. The SC-70, SOT-323 package offers good thermal performance for SMT mounting. Key spec: Rds(on) max N/A. Select gate driver voltage carefully — logic-level variants exist for direct MCU drive.
📖 Technical Guides for FJX4009RTF
Alternatives & Replacements
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MUN5131T1G
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SMUN5211T1G
TRANS PREBIAS NPN 50V SC70-3
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onsemiStockSC-70, SOT-323
MUN5135T1G
TRANS PREBIAS PNP 50V SC70-3
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onsemiStockSC-70, SOT-323
MUN5130T1G
TRANS PREBIAS PNP 50V SC70-3
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onsemiStockSC-70, SOT-323
MUN5141T1G
TRANS PREBIAS PNP 50V SC70-3
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Infineon TechnologiesStockSC-70, SOT-323
BCR129WH6327XTSA1
TRANS PREBIAS NPN 250MW SOT323-3
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All Technical Specifications
| Power - Max | 200 mW |
| Transistor Type | PNP - Pre-Biased |
| Resistor - Base (R1) | 4.7 kOhms |
| Frequency - Transition | 200 MHz |
| Vce Saturation (Max) @ Ib, Ic | 300mV @ 1mA, 10mA |
| Current - Collector (Ic) (Max) | 100 mA |
| Current - Collector Cutoff (Max) | 100nA (ICBO) |
| DC Current Gain (hFE) (Min) @ Ic, Vce | 100 @ 1mA, 5V |
| Voltage - Collector Emitter Breakdown (Max) | 40 V |
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