Overview
The J112-D74Z, produced by onsemi, is an N-Channel JFET (Junction Field-Effect Transistor) designed for various low-level analog applications. This device is part of the J112 series, which is known for its depletion mode operation and is suitable for chopper stabilized amplifiers, sample and hold circuits, and other analog switching applications.
The J112-D74Z is available in a TO-92 package and is Pb-free, making it compliant with current environmental regulations. It offers a balance of low noise, high input impedance, and low power consumption, making it an ideal choice for sensitive analog circuits.
Key Specifications
| Characteristic | Symbol | Min | Max | Unit |
|---|---|---|---|---|
| Drain-Gate Voltage | VDG | -35 | -35 | Vdc |
| Gate-Source Voltage | VGS | -35 | -35 | Vdc |
| Gate Current | IG | - | 50 | mAdc |
| Operating and Storage Junction Temperature Range | TJ, Tstg | -65 | 150 | °C |
| Total Device Dissipation at TA = 25°C | PD | - | 350 | mW |
| Derate Above 25°C | - | - | 2.8 | mW/°C |
| Zero-Gate Voltage Drain Current (IDSS) | IDSS | 25 | 75 | mA |
| Drain-Source On Resistance (rDS(on)) | rDS(on) | - | 50 | Ω |
| Gate-Source Cut-Off Voltage (VGS(off)) | VGS(off) | -1.0 | -5.0 | Vdc |
| Drain Cutoff Leakage Current (ID(off)) | ID(off) | - | 1.0 | nA |
Key Features
- Pb-Free Packages: Available in Pb-free packages, making them compliant with current environmental regulations.
- Low Noise and High Input Impedance: Suitable for low-level analog applications where noise and input impedance are critical.
- Depletion Mode Operation: Operates in depletion mode, providing a high degree of control over the drain current.
- Interchangeable Source and Drain: The source and drain terminals are interchangeable, offering flexibility in circuit design.
- Low Power Consumption: Designed for low power consumption, making it suitable for battery-powered devices and energy-efficient systems.
Applications
- Chopper Stabilized Amplifiers: Used in chopper stabilized amplifiers to improve stability and reduce noise.
- Sample and Hold Circuits: Ideal for sample and hold circuits due to its high input impedance and low noise characteristics.
- Analog Switching: Suitable for low-level analog switching applications where precision and low noise are required.
- Audio and Signal Processing: Used in audio and signal processing circuits where high fidelity and low distortion are necessary.
Q & A
- What is the maximum drain-gate voltage for the J112-D74Z?
The maximum drain-gate voltage (VDG) is -35 Vdc.
- What is the operating junction temperature range for this device?
The operating and storage junction temperature range is -65°C to 150°C.
- What is the typical zero-gate voltage drain current (IDSS) for the J112-D74Z?
The IDSS range is from 25 mA to 75 mA.
- What is the drain-source on resistance (rDS(on)) for this device?
The drain-source on resistance (rDS(on)) is up to 50 Ω.
- Is the J112-D74Z Pb-free?
- What are the typical applications for the J112-D74Z?
- What is the maximum gate current for the J112-D74Z?
- What is the thermal resistance, junction-to-case (RθJC), for the J112-D74Z?
- Can the source and drain terminals be interchanged?
- What is the typical drain cutoff leakage current (ID(off)) for the J112-D74Z?
