Honeywell 51303968-100 CMOS Backup Assembly – Product Description

Description / Product Summary

The Honeywell 51303968-100 CMOS Backup Assembly provides dependable support for memory retention in TDC 3000 and Experion PKS systems. It delivers regulated backup power to CMOS memory boards, ensuring important configuration data remains intact during unexpected voltage drops. Moreover, its lightweight PCB construction fits easily into existing Honeywell rack environments, allowing technicians to maintain stable control operations without system redesigns. The module is widely used in process facilities that require continuous data integrity under demanding industrial conditions.Functional Highlights

This module stabilizes low-voltage supplies for CMOS memory circuits, giving control systems a reliable safety layer against data loss. In addition, its integrated monitoring functions alert the system to voltage irregularities, therefore improving long-term operational resilience. The board’s efficient power-conditioning design supports consistent performance in large DCS installations where equipment uptime directly impacts production quality. Its compact footprint also helps maintenance teams perform quick field replacements during routine service activities.

Technical Specifications

Model Number: 51303968-100
Type: CMOS Backup Assembly / Charger-Monitor Module
Category: PLCs / Machine Control
Subcategory: PC Board PLC / Add-On Board
Function: Backup power for CMOS memory circuits
Input Voltage: 24 VDC
Output Voltages: 5 VDC, 3.3 VDC, 1.2 VDC
Dimensions: 10 cm × 18 cm × 10 cm
Weight: 0.20 lbs (90 g)
Design: Compact PCB for Honeywell racks
Performance: Continuous backup power with voltage monitoring
Certifications: CE compliant, UL listed
Condition: New, original Honeywell part

FAQ

Q1: What is the primary function of the 51303968-100 module?
It supplies regulated backup power to CMOS memory boards to prevent data loss during outages.

Q2: Which Honeywell systems use this backup assembly?
It works with Honeywell TDC 3000 and Experion PKS distributed control systems.

Q3: Does the module include integrated monitoring?
Yes. The board monitors voltage levels to maintain stable operation across memory circuits.

Q4: Can it handle multiple voltage requirements?
It provides three regulated outputs—5 VDC, 3.3 VDC, and 1.2 VDC—to meet CMOS memory needs.

Q5: Is it suitable for industrial environments?
Yes. The module is CE compliant and UL listed for demanding industrial automation settings.