The Bel Fuse/Power-One SPL53-4101 is an open-frame linear power supply board engineered for precision power conversion and distribution across demanding industrial, medical, rail, eMobility, and telecommunications applications. This design delivers stable, low-noise output ideal for sensitive equipment including amplifiers, broadcast systems, ATE, and control instrumentation requiring minimal ripple and exceptional regulation.
## Technical Specifications
**Input Power**
• AC Input: 100 to 264 VAC nominal, 47–63 Hz
• 10% output current derating required for 50 Hz operation
**Output Performance**
• Output Ripple: 5.0 mV peak-to-peak maximum (2–15 V units); 0.02% peak-to-peak maximum (20–200 V units)
• Transient Response: ≤50 µs for 50% load change
• Line Regulation: ±0.05% for 10% line change
• Load Regulation: ±0.05% for 50% load change
• Stability: ±0.3% over 24 hours (post 1-hour warm-up)
• Temperature Coefficient: ±0.03%/°C maximum
**Protection & Control**
• Short Circuit Protection: Automatic current limit/foldback
• Overload Protection: Automatic current limit/foldback
• Overvoltage Protection (OVP): Built-in on 5 V outputs (6.2 V ± 0.4 V); optional adjustable modules available (6.4–34 V range); unavailable for 48 V models
• Output Inhibit: Standard capability
• Remote Sense: Provided on most outputs
• Parallel Operation: Master/slave configuration supported
**Thermal Requirements**
• Operating Temperature: 0°C to 50°C full-rated; linear derate to 40% at 70°C
• Cooling: 12 CFM forced air cooling required above 80% total rated output power to meet IEC 380/950
**Interfaces**
• Bus A and Bus B ports
• IEEE-STD-488 port
• Trap Detect, XMIT Sync, and Composite Video outputs
## Key Features
• CE marked to Low Voltage Directive (LVD)
• Domestic and international regulatory standard approval
• Isolated output available via jumper W1 removal (specific models)
• High-reliability design for mission-critical systems
## Typical Applications
Amplifier systems, broadcast equipment, automated test equipment, acoustic instrumentation, and precision control electronics requiring ultra-low output noise and ripple.
## Compatibility & Integration
The SPL53-4101 integrates with IEEE-STD-488 and MIL-STD-1553 test and measurement ecosystems, supporting multi-unit parallel architectures for scalable power delivery.
