Description
Here's a concise introduction to the PN4118:
The PN4118 is a N-channel JFET (Junction Field-Effect Transistor) produced by Interfet. It has a voltage rating of 40V and a power dissipation of 0.35W, making it suitable for use in low-power electronic circuits. The device comes in the TO92 package configuration, which is a popular and compact form factor.
With an introduction to this N-channel JFET, users can expect reliable performance and flexibility in design applications that require adjustable current-voltage characteristics. However, specific details such as electrical parameters or application-specific information are not provided by the manufacturer.
Package
According to the product information, the package type of PN4118 is TO-92-3.
Pinout
The PN4118 is a N-channel JFET (Junction Field-Effect Transistor) from Interfet, packaged in TO-92-3.
As it's a TO-92 package, the typical pin count for this type of package is three:
- The anode (or drain) pin is connected to lead 1 (center pin).
- The cathode (or source) pin is connected to lead 2.
- The gate pin is connected to lead 3.
In a nutshell, the PN4118 JFET operates with a single controlling terminal (gate), and it's designed for general-purpose use.
Manufacturer
According to the provided information, the manufacturer of the PN4118 is Interfet.
Specifications
| Product Category |
JFET |
Technology |
Si |
| Product Type |
JFETs |
Factory Pack Quantity |
4150 |
| Subcategory |
Transistors |
Type |
JFET |
| Unit Weight |
0.016000 oz |
Package/Case |
TO-92
|
PN4118 FAQs
1.Q: Are there related parts with similar specifications?
A: Fairchild’s Process 53 may have sibling JFETs (e.g., 2N4117/2N4118/2N4119 series), but cross-check parameters for substitutes due to obsolescence.
2.Q: Does this JFET meet any industry certifications?
A: No. It is marked EAR99 (export-controlled but non-sensitive), lacks PPAP/Automotive compliance, and is obsolete per the manufacturer.
3.Q: What are the recommended operating conditions?
A: Operate within -40V ≤ V_GS ≤ 0V, V_DG ≤ 40V, and ambient temperatures between -55°C and +150°C for reliable performance.
4.Q: What is the thermal resistance of the TO-92 package?
A: Thermal resistance (RθJA) is typically ~200°C/W for TO-92, but confirm with the datasheet as Process 53 may have specific values.
5.Q: What are the absolute maximum ratings for this device?
A: Max ratings: Gate-Source Voltage = -40V, Drain-Gate Voltage = 40V, Power Dissipation = 350mW, Operating Temp = -55°C to +150°C. Exceeding these may damage the part.
6.Q: What are typical applications for this JFET?
A: Ideal for low-current DC circuits, audio signal processing, and high-impedance instrumentation (e.g., sensor interfaces, preamplifiers).
7.Q: What are the key features of this low-current JFET?
A: Key features include sub-picoamp input-stage performance, high impedance compatibility, -40V max gate-source voltage, 350mW power dissipation, and operation from -55°C to 150°C.
8.Q: What is the pinout configuration of the Fairchild Semiconductor TO-92 JFET?
A: The device follows a standard TO-92 3-pin configuration (Gate, Drain, Source), with pin assignments typically labeled as per the datasheet. Verify the exact pinout diagram for Process 53-sourced parts.
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