G4PC50U Datasheet – Vces=600V, UltraFast Speed IGBT – IR

Part Number: G4PC50U, IRG4PC50U

Function : UltraFast Speed IGBT

Package: TO-247AC Type

Manufacturer: International Rectifier





1. UltraFast: Optimized for high operating frequencies 8-40 kHz in hard switching, >200 kHz in resonant mode

2. Generation4 IGBT design provides tighter parameter distribution and higher efficiency than Generation3








1. Generation 4 IGBT’s offer highest efficiencies available

2. IGBT’s optimized for specific application conditions

3. HEXFRED diodes optimized for performance with IGBT’s . Minimized recovery characteristics require less/no snubbing

4. Designed to be a “drop-in” replacement for equivalent industry-standard Generation 3 IR IGBT’s


G4PC50U Datasheet


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NB7232 Datasheet PDF – Stepless Speed Dimmer, SOP 8 Pin

Part Number: NB7232

Function: Stepless Speed Control Touch Dimmer

Package: SOP 8 Pin Type

Manufacturer: Unspecified


NB7232 datasheet



NB7232 touch (key) stepless dimming (speed control) / switching circuit, is a new product of Ningbo Science and Technology Park Silicon Microelectronics Co., Ltd. optimized design and process improvement, fully compatible with the early LS7232, CS7232, M7232 The SM7232 is a CMOS process with a working voltage of 5V. The performance and stability of the LS7232 (operating voltage of 15V) using the PMOS process is much better.

Application Circuit

NB7232 circuit

Widely used in the control of incandescent lighting (table lamps, chandeliers, etc.) and motor speed (table fan, ceiling fan, vacuum cleaner, etc.) in life, together with a peripheral circuit mainly composed of two-way thyristor, using touch (or button) Dimming (or speed control) and switching control of the light source (or motor), and memory function of dimming or speed control position. Get rid of the traditional mechanical switch or potentiometer adjustment form, is a novel upgrade product.


NB7232 pinout

The circuit consists of an input buffer, phase-locked loop, control logic, luminance memory, phase angle pointer, digital comparator, and output driver.

Other data sheets are available within the file: CS7232, LS7232, M7232, SM7232

NB7232 Datasheet PDF Download


NB7232 pdf