The LM75-20B24 is a workhorse product we frequently recommend to our industrial control clients. Its standout features are its robust EMC performance (meeting CISPR32/EN55032 CLASS B without external components) and its wide operating temperature range of -30°C to +70°C.
This significantly simplifies system design and enhances reliability in harsh environments. Compared to similar models, its high efficiency and low no-load power consumption make it an excellent choice for energy-conscious applications.
A reliable, industrial-grade solution that consistently delivers exceptional performance. The LM75-20B24's built-in EMC compliance and wide temperature operation make it our go-to recommendation for demanding industrial applications.
— LiTong Field Application Engineers
Standout Features
- 75W Output Power: Reliable power delivery for demanding industrial applications
- Universal AC Input: 85-264VAC input range for global compatibility
- 90% High Efficiency: Reduced heat generation and energy consumption
- EMC Class B Compliance: Built-in EMC performance without external components
- Wide Temperature Range: -30°C to +70°C operation for harsh environments
- 4000VAC Isolation: Superior electrical isolation for safety
Why Choose LM75-20B24?
Simplified Design: The built-in EMC compliance eliminates the need for external filtering components, saving PCB space and reducing BOM costs while ensuring reliable operation in electrically noisy industrial environments.
Primary Applications
- Industrial Automation: PLC systems, motor drives, and control panels requiring reliable 24V power
- LED Lighting Systems: Commercial and industrial LED lighting with constant voltage requirements
- Communications Equipment: Network infrastructure, telecom systems, and data center applications
- Medical Equipment: Non-critical medical devices requiring stable, EMC-compliant power
- Building Automation: HVAC controls, security systems, and access control panels
Application Note
Industrial Environments: The LM75-20B24's wide temperature range and robust EMC performance make it particularly suitable for factory floors, outdoor installations, and harsh industrial environments where reliability is paramount.
Does this model require external filtering for EMC compliance?
No, the LM75-20B24 is designed to meet CISPR32/EN55032 CLASS B standards for both conducted and radiated emissions internally, simplifying your design and saving board space.
What is the maximum capacitive load this power supply can start up?
Please refer to the official datasheet for the detailed capacitive load curve. However, it is robustly designed to handle typical loads found in industrial automation systems.
Can the output voltage be adjusted?
Yes, the output voltage can be slightly adjusted via the "ADJ" potentiometer. The typical adjustment range is around ±10%.
Is this suitable for 24/7 continuous operation?
Absolutely. The LM75-20B24 is designed for continuous industrial operation with an MTBF rating exceeding 200,000 hours at full load and 25°C ambient temperature.
