Overview
The Power One SPL-40-4000 is a 40W multi-output switching power supply manufactured by BEL POWER SOLUTION. Also identified as assembly 75487 and model 75121, this board-level unit provides stable, regulated DC outputs from a single input source. Designed for industrial and commercial electronics applications, the SPL-40-4000 combines compact size with proven switching topology for efficient power conversion.
Key Features
- 40W continuous output power rating
- Multi-voltage output configuration (+5V, +12V, -12V, -5V rails)
- Tight output voltage regulation for sensitive load applications
- Board-level form factor for OEM integration
- Compact dimensions enabling space-constrained installations
- Switching architecture for efficient thermal management
Technical Specifications
The SPL-40-4000 provides multiple regulated output voltage rails, each with defined current capacity. Primary outputs include +5V at 5A, +12V at 0.5A, -12V at 0.5A, and -5V at 0.5A. Output voltage regulation tolerance is ±0.3% on the +5V rail with ±4% tolerance on secondary ±12V and -5V outputs. Line and load regulation maintains ±1% stability under normal operating conditions.
Typical Applications
- Industrial control electronics and instrumentation
- Test and measurement equipment
- Telecommunications and networking hardware
- Computer peripheral interfaces
- Legacy embedded systems and upgrades
- OEM replacement power modules
Compatibility & Replacements
Compatible With
- Systems requiring +5V, +12V, -12V, -5V multi-output power
- Board-level integration requiring 40W switching power supplies
- Standard industrial control architectures
Replaces / Drop-In Replacement For
Verify compatibility with your system integrator before ordering. The SPL-40-4000 (assembly 75487) may replace other Power One SPL series 40W configurations; confirm output voltage matching with original equipment specifications.
Works With
- Standard 110-240VAC input systems (verify input voltage with your configuration)
- Multi-output DC voltage distribution architectures
- Industrial switching power supply installations
