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NEC NL6448AC20-06 LCD Display

NEC NL6448AC20-06: 6.5" VGA industrial LCD. Extends legacy system life with a wide -10/+70°C temp range & direct analog RGB input for seamless HMI refurbishment.

· Categories: LCD Display
· Manufacturer: NEC
· Price: US$
· Date Code: 2020+
. Available Qty: 265
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NL6448AC20-06 Specification

NL6448AC20-06: 6.5-inch VGA Industrial TFT-LCD for Legacy System Reliability

A Definitive Component for Sustaining Industrial Operations

Content last revised on October 20, 2025.

The NL6448AC20-06 is a rugged 6.5-inch VGA display engineered for long-term reliability and seamless integration into legacy industrial systems. Featuring key specifications of 640x480 VGA | -10°C to +70°C Operating Temperature | 200 cd/m² Brightness, this TFT-LCD module delivers two critical engineering benefits: it ensures operational uptime in harsh thermal environments and simplifies the refurbishment of existing equipment. By providing direct compatibility with analog RGB video signals, it addresses the core challenge of sourcing robust displays for established industrial Human Machine Interfaces (HMIs). For maintaining industrial control systems with analog video outputs, this wide-temperature display is a mechanically robust and compatible choice.

Key Parameter Overview

Decoding the Specs for Industrial Longevity

The technical specifications of the NL6448AC20-06 are tailored for industrial environments where durability and consistent performance are paramount. The following parameters highlight its suitability for integration into control panels, monitoring systems, and diagnostic equipment.

Parameter Specification
Display Technology a-Si TFT Active Matrix
Screen Size (Diagonal) 16 cm (6.5 inches)
Resolution 640 (H) x 480 (V) pixels (VGA)
Pixel Pitch 0.207 (H) x 0.207 (V) mm
Active Area 132.48 (H) x 99.36 (V) mm
Luminance 200 cd/m² (typ.)
Contrast Ratio 300:1 (typ.)
Input Signal Analog RGB (0.7 Vp-p)
Viewing Angle (CR>10) Up: 50°, Down: 35°, Left/Right: 55° (typ.)
Operating Temperature -10°C to +70°C
Storage Temperature -20°C to +80°C
Backlight System 1 CCFL, Sidelight Type
Backlight Life Time 50,000 hours (typ.)
Surface Treatment Anti-glare
Module Dimensions 153.0 (W) x 121.0 (H) x 11.5 (D) mm (typ.)
Vibration Resistance 14.7 m/s² (1.5G)
Shock Resistance 294 m/s² (30G)

Download the NL6448AC20-06 datasheet for detailed specifications and performance curves.

Application Scenarios & Value

System-Level Benefits in Maintaining Legacy Industrial Infrastructure

The NL6448AC20-06 is purpose-built for scenarios where replacing an entire control system is not feasible. Its primary value lies in extending the life of capital-intensive assets. Consider the engineering challenge of a failed HMI on a legacy CNC machine or a process control panel. These systems often rely on controllers with analog video outputs, making modern digital-interface displays incompatible without costly converters or a full system overhaul. The NL6448AC20-06's native analog RGB interface provides a direct, one-for-one replacement path, dramatically reducing downtime and engineering costs.

Its wide operating temperature range is not just a specification; it is a guarantee of performance on the factory floor. Unlike consumer-grade displays that can fail in non-climate-controlled environments, this module operates reliably from a cold start at -10°C to a high of +70°C. This thermal resilience ensures clear data visualization for operators year-round, from cold winter mornings to peak summer heat, directly contributing to system uptime and preventing costly operational interruptions. While the NL6448AC20-06 is optimized for analog systems, for designs requiring a digital LVDS interface, the related NL6448BC20-30 may offer an alternative path for system upgrades.

Frequently Asked Questions (FAQ)

What makes the NL6448AC20-06 suitable as a replacement for older industrial displays?Its standard 6.5-inch VGA format, combined with a native analog RGB interface, allows it to serve as a direct replacement for many older CRT or early TFT-LCD panels used in industrial machinery without requiring signal converters or significant mechanical rework.

How does the -10°C to +70°C operating temperature range impact system design?This wide range eliminates the need for dedicated heating or cooling components for the display in many applications, simplifying the thermal design of the HMI enclosure. It provides confidence that the display will perform reliably in environments like unheated warehouses, foundries, or enclosed vehicle cabs.

Is the CCFL backlight on the NL6448AC20-06 user-replaceable?The datasheet indicates the backlight is a replaceable part, which is a critical feature for long-term maintenance. This allows for the display's service life to be extended beyond the typical 50,000-hour backlight lifetime, reducing the total cost of ownership. What is the benefit of its replaceable backlight? It allows for field servicing, extending the panel's operational life significantly.

What are the specific requirements for interfacing with the analog RGB input on this module?The module requires separate analog signals for Red, Green, and Blue, along with horizontal and vertical sync signals (Hsync, Vsync). The signal level is a standard 0.7 Vp-p, compatible with many legacy video controllers and industrial PCs. A stable power supply for the panel logic and a separate high-voltage inverter for the CCFL backlight are also required.

Application Vignette

Extending the Lifespan of a CNC Machining Center HMI

The Engineering Challenge: A critical CNC milling machine, operational for over a decade, experiences a display failure. The machine itself is mechanically robust and precise, but its control unit outputs a 640x480 video signal via an analog connection. The cost to replace the entire CNC control system is prohibitive, and the potential production downtime is unacceptable.

A Practical, Component-Level Solution: The NL6448AC20-06 is identified as the optimal replacement component. Its physical dimensions and VGA resolution allow it to fit into the existing HMI enclosure with minimal modification. The key enabling feature is its analog RGB input, which connects directly to the legacy controller, immediately resolving the signal incompatibility issue. This avoids a complex and risky re-engineering project involving signal converters that could introduce latency or failure points.

Strategic & Financial Outcome: By integrating the NL6448AC20-06, the facility's maintenance engineers restore the machine to full service in a fraction of the time and at less than 5% of the cost of a full controller retrofit. The display's industrial-grade temperature and vibration ratings provide assurance of long-term reliability, safeguarding this valuable manufacturing asset for years to come. This approach epitomizes a sound strategy of asset management, proving that targeted component replacement is often a more intelligent choice than a complete system overhaul. Understanding the difference between industrial and consumer displays is crucial in these scenarios.

Strategic Component for Asset Longevity

The NEC NL6448AC20-06 represents more than just a display; it is a strategic component for engineers and asset managers focused on maximizing the operational life and return on investment of established industrial systems. Its design prioritizes compatibility and environmental resilience, providing a reliable and cost-effective solution to the pervasive challenge of maintaining legacy equipment in demanding industrial settings. Selecting this module is a decision that supports both technical requirements and broader financial objectives.

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