OKUMA FA8470C Hybrid Circuit

Product Description

OKUMA FA8470C is an original hybrid IC manufactured by OKUMA, a thick-film module dedicated for CNC servo drives. It adopts a 57-pin DIP package and serves as the core power drive component for servo units of legacy OKUMA OSP CNC systems. This module integrates power amplification, signal sensing and protection circuits inside, featuring strong anti-interference performance and low temperature drift. It is designed to match OKUMA servo drivers for servo motor current-loop drive and feedback acquisition. It is a widely used industrial spare part for CNC machine tool maintenance and replacement, popular in used machine repair and retrofitting markets.

Specifications

• Model: FA8470C
• Brand: OKUMA (Japan)
• Device Type: Hybrid Circuit / Hybrid IC
• Pin Count: 57 Pin, DIP package
• Compatible Equipment: OKUMA OSP series CNC servo drive units
• Function: Servo power driving, current sampling, overcurrent & overheat protection
• Technology: Thick-film hybrid integration
• Grade: Industrial grade, for machine control cabinet
• Lifecycle: Obsolete spare part, mainly supplied as original used or new old stock

Application

1. Core component on the drive board inside servo amplifiers of OKUMA CNC lathes and machining centers
2. Servo axis closed-loop current control, power amplification and current feedback signal acquisition
3. Replacement for faulty servo units to fix servo alarms, jitter, overcurrent or enable failure
4. Maintenance, spare parts stocking and retrofitting projects for legacy OKUMA OSP CNC machines

Series Models

FA8470, FA8470C, FA8470D