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Product Detailed Parameters
- Description：.5V 3V 50MA 625MW TH JFET N CHAN
- Series：-
- Mfr：Central Semiconductor Corp
- Package：Tape & Box (TB)
- FET Type：N-Channel
- Voltage - Breakdown (V(BR)GSS)：40 V
- Drain to Source Voltage (Vdss)：-
- Current - Drain (Idss) @ Vds (Vgs=0)：5 mA @ 20 V
- Current Drain (Id) - Max：-
- Voltage - Cutoff (VGS off) @ Id：500 mV @ 1 nA
- Input Capacitance (Ciss) (Max) @ Vds：14pF @ 20V
- Resistance - RDS(On)：100 Ohms
- Power - Max：625 mW
- Operating Temperature：-65°C ~ 150°C (TJ)
- Mounting Type：Through Hole
- Package / Case：TO-226-3, TO-92-3 (TO-226AA)
- Supplier Device Package：TO-92-3
- Grade：-
- Qualification：-
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Overview
The PN4393 APM TIN/LEAD is a small signal N-channel silicon Junction Field-Effect Transistor (JFET) manufactured by Central Semiconductor Corp. It utilizes a TO-92 cylindrical through-hole package and operates in depletion mode. Key electrical characteristics include a maximum drain-source voltage of 40 V, a gate-source cutoff voltage of 5 V, and a typical on-resistance of 100 Ω. The device supports a power dissipation of 625 mW and functions within an operating temperature range from -65 °C to +150 °C.
Feature Summary
- N-channel silicon JFET technology for small signal applications
- Through-hole TO-92 package construction
- Depletion mode operation with low feedback capacitance
Applications
- Small signal amplification circuits
- Electronic switching applications
- Low noise analog signal processing
Procurement Notes
Verify the specific suffix 'APM TIN/LEAD' against official Central Semiconductor documentation to confirm lead-free plating specifications and packaging format. Confirm availability status as distribution channels may list this component as discontinued or limited stock due to its legacy nature. Ensure the procurement source provides authentic manufacturer data sheets rather than generic distributor summaries.
Selection Notes
Select this component when a through-hole N-channel JFET with moderate on-resistance is required. The TO-92 package suits prototyping and general-purpose boards where surface mount space is not constrained. Verify that the 100 Ω on-resistance and 40 V breakdown voltage align with circuit requirements before finalizing the design.
Part Context
Central Semiconductor specializes in manufacturing legacy and end-of-life semiconductor devices, often continuing production of parts discontinued by other manufacturers. The PN4393 falls under their portfolio of bipolar and field-effect transistors designed to support existing equipment without requiring costly redesigns. This approach targets industries maintaining long-term production runs of older electronic systems.
Replacement Considerations
Consult Central Semiconductor's EOL Product Support documentation or cross-reference tools to identify verified equivalent part numbers. Do not assume functional interchangeability with generic N-channel JFETs without verifying pinout compatibility and electrical parameter alignment.
