P-channel Silicon Field-Effect Transistors J174-J177 Product Specification

Category: Electronics, NXP, Transistors

The provided datasheet discusses a series of P-channel silicon field-effect transistors, specifically the J174, J175, J176, and J177 models. These devices are produced by Philips Semiconductors and come enclosed in a TO-92 plastic envelope. They are designed for various analog applications, including switches, choppers, and commutators. A notable characteristic of these transistors is their symmetrical design, allowing for the drain and source connections to be interchangeable.

Main Characteristics

The datasheet provides quick reference data pertinent to the operational limits and performance of the transistors:

Drain-source voltage (V_DS): Maximum of 30 volts
Gate-source voltage (V_GS): Maximum of 30 volts
Gate current (I_G): Maximum of 50 mA
Total power dissipation (P_tot): Maximum of 400 mW at an ambient temperature (T_amb) of 50 °C

Datasheet also lists the minimum and maximum drain currents for each specific transistor model when V_DS is at 15 V and V_GS is at 0:

J174: 20 – 135 mA
J175: 1.5 – 20 mA
J176: 70 mA
J177: 35 mA

Another crucial performance factor provided is the drain-source ON-resistance (R_DS(on)) with V_DS at 0.1 V and V_GS at 0, with maximum resistance values detailed for each model:

J174: 85 Ω
J175: 125 Ω
J176: 250 Ω
J177: 300 Ω

Physical Design

The transistors are depicted in a simplified outline along with their symbolic representation according to the TO-92 package. The pin configuration is straightforward, detailed as source, gate, and drain pins. The flexible pinout due to the symmetrical design of the transistors is particularly emphasized, as it allows for the drain and source to be switched as needed, potentially simplifying circuit design.

Applications and Usage

With their aforementioned specifications, these transistors are versatile for a wide array of analog applications. Their capability to handle moderate power levels and currents makes them suitable for a variety of signal processing roles within electronic circuits.