J105, J106, J107 N-Channel Switch Datasheet

Category: Electronics, Fairchild Semiconductor, Transistors

Introduction

The datasheet provides detailed information on N-Channel Switch devices, specifically the J105, J106, and J107 models. These devices, presented by Fairchild Semiconductor, are optimized for analog or digital switching applications that require very low on-resistance. The technology is based on Fairchild’s Process 59.

Absolute Maximum Ratings

Absolutely Maximum Ratings are provided to inform the users of the maximum stress conditions that the device can safely withstand without damage. The ratings for the J105, J106, and J107 switches are given at an ambient temperature of 25°C unless specified otherwise. Key parameters listed include:

V_DG: Drain-Gate Voltage, with a maximum value of 25V
V_GS: Gate-Source Voltage, also with a maximum of 25V
I_GF: Forward Gate Current, capped at 10mA
T_J, T_stg: Operating and Storage Junction Temperature Range from -55 to +150°C

These ratings are limiting values for the serviceability of the semiconductor device and are based on a maximum junction temperature of 150°C. They represent steady-state limits, and special consultation with the factory is recommended for applications that involve pulsed or duty cycle operations.

Thermal Characteristics

The datasheet specifies the thermal characteristics of the devices, which are crucial for thermal management and ensuring device longevity. The parameters include:

P_D: Total Device Dissipation at 350mW
Derate above 25°C: Derating factor of 2.8mW/°C
R_θJC: Thermal Resistance, Junction to Case at 125°C/W
R_θJA: Thermal Resistance, Junction to Ambient at 357°C/W

These specifications are provided to guide the user on how much heat the device can dissipate and how temperature increases above 25°C affect the dissipation rate. The thermal resistance information helps in the design of heat management systems to ensure the device operates within safe temperature ranges.

Note

The the datasheet footer indicates that the information was published by Fairchild Semiconductor Corporation in 1997. This suggests that users should confirm if the information is still current or if newer versions of the device or datasheet are available.