Introduction to J201 JFET Transistor
The J201 is an N-channel junction field-effect transistor (JFET) widely used in electronic circuits, particularly in applications requiring low-level audio amplification and high-impedance signal processing. Its key features include versatility, superior signal integrity, and low-noise operation. The transistor has three pins: Drain, Source, and Gate.
Specifications of J201
Type: N-Channel
Mounting Type: Through Hole
Package/Case: TO-226–3, TO-92–3 (TO-226AA)
Supplier Device Package: TO-92–3
Operating Temperature: -55°C~150°C
Power — Max: 625mW
Current — Drain (Idss) @ Vds (Vgs=0): 200μA @ 20V
Voltage — Cutoff (VGS off) @ Id: 300mV @ 10nA
Voltage — Breakdown (V(BR)GSS): 40V
Part Status: Obsolete
Moisture Sensitivity Level (MSL): 1 (Unlimited)
Features of J201
Type Designator: J201
Type of Transistor: JFET
Type of Control Channel: N-Channel
Package: TO-92
Low Cutoff Voltage
High Input Impedance
Very Low Noise
Electrical Characteristics:
Max Voltage Applied From Gate to Source: -40V
Max Drain to Gate Voltage: 40V
Max Continuous Gate Current: 50mA
Gate to Source Cutoff Voltage (Min to Max): -0.3V to -1.5V
Max Power Dissipation: 350mW
Temperature Range:
Operating Temperature Range: -55°C to +150°C
Storage Temperature Range: -55°C to +150°C
Additional Features:
Very Low Noise & High Gain
Applications of J201
High-Gain, Low-Noise Amplifiers:
Used in amplifiers where low noise is critical for signal fidelity.
Low-Current, Low-Voltage Battery-Powered Amplifiers:
Ideal for battery-powered amplifiers, extending battery life.
Infrared Detector Amplifiers:
Amplifies weak infrared signals with minimal noise interference.
Ultra-High Input Applications: Sensor Circuits:
Finds application in sensor circuits requiring ultra-high input impedance for accurate signal processing.
Audio Preamp Circuits:
Integrated into audio preamp circuits for enhanced audio signal quality.
Audio Amplifier Stages:
Benefits amplification stages in audio systems with high gain.
Laser Detection & Data Amplifications:
Used in laser detection applications for signal amplification.
Infrared Detection & Data Amplifications:
Suitable for circuits involved in infrared detection and data amplification
J201 Equivalent & Replacement
2SJ201:
Functionally equivalent with low noise characteristics.
LJ2015–52:
Direct substitute with a high voltage rating.
MMBFJ201:
Interchangeable with low leakage current.
CJ201NL:
Cost-effective alternative to J201.
For further details, including pinout, datasheet, and RFQ, feel free to inquire.
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