FSP350-57FCB 350W Flex ATX Industrial AC/DC Switching Power Supply
- Technology
- IPC industrial computer power supplies
- Partner
- FSP Protek
The FSP350-57FCB is an industrial-grade 350W switching power supply in a compact Flex ATX form factor. Designed for easy integration and maintenance, it delivers reliable power for industrial PC systems and other space-constrained applications. With active PFC and a broad 90–264 VAC input range, this PSU operates globally while maintaining high efficiency certified to 80 PLUS Gold. It offers standard ATX outputs of 3.3V, 5V, 12V, -12V, and 5V standby to support server-class motherboards, workstations, communication equipment, and automation controllers. Built to meet major international safety and EMC expectations, this power supply helps ensure stable operation and compliance in demanding environments.
The FSP350-57FCB 350W Flex ATX Power Supply is built for compact industrial and embedded systems that need dependable power delivery in a small footprint. Its Flex ATX format makes it well suited to 1U and space-constrained chassis, while active PFC, 80 PLUS Gold efficiency, and a full-range 90–264 VAC input support reliable global deployment. The unit is designed for industrial PCs, compact servers, communication platforms, and automation equipment where stable output rails, serviceability, and long operating life are critical.
Range features
A high level overview of what this range offers
- 80 PLUS Gold efficiency – Helps reduce power loss and heat generation for lower operating costs.
- Active PFC design – Improves input power factor and reduces harmonic distortion.
- Full-range 90–264 VAC input – Enables use across worldwide mains power environments without manual switching.
- Compact Flex ATX form factor – Ideal for industrial PCs, servers, and other space-limited systems.
- Standard multi-rail ATX outputs – Provides 3.3V, 5V, 12V, -12V, and 5V standby for broad motherboard and device compatibility.
- Quiet 40 mm cooling fan – Supports thermal management with low acoustic impact.
- Comprehensive protection suite – Includes OCP, OVP, OTP, and SCP to safeguard the PSU and connected equipment.
- Auto-recovery resettable shutdown – Minimises downtime after abnormal operating conditions clear.
- Easy-swap cable harness – Simplifies installation, servicing, and field replacement.
- Industrial-grade reliability – 100% burn-in tested at 50 °C and rated for over 100,000 hours MTBF at 25 °C.
Downloads
for FSP350-57FCB 350W Flex ATX Industrial AC/DC Switching Power Supply
What’s in this range?
All the variants in the range and a comparison of what they offer
Specification | FSP350-57FCB |
Form factor | Flex ATX (IPC PSU) |
Rated output power | 350 W |
AC input range | 90–264 VAC (full range) |
Efficiency certification | 80 PLUS Gold |
DC outputs | 3.3 V (14 A), 5 V (16 A), 12 V (29 A), -12 V (0.3 A), +5 Vsb (3 A) |
Cooling fan | Internal 40 mm fan (rear-mounted) |
Protection circuits | OCP, OVP, OTP, SCP (auto-recovery) |
Operating temperature | 0 °C to 50 °C ambient |
MTBF |
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Safety approvals | UL/cUL, CE, FCC, CCC, TUV, EAC, VCCI, BSMI, UKCA |
Compliance standards | IEC 60950-1 / 62368-1 (ITE safety) |
Dimensions (L × W × H) | 150.0 × 81.5 × 40.5 mm |
FAQs
for FSP350-57FCB 350W Flex ATX Industrial AC/DC Switching Power Supply
This 350 W Flex ATX power supply is designed for industrial PCs, compact servers, communication equipment, and automation control systems. Its standard ATX outputs and high reliability make it a strong fit for 1U and other space-limited chassis.
Yes. The unit supports a full-range 90 to 264 VAC input, so it can operate from either 115 V or 230 V mains without manual voltage selection.
It indicates high energy efficiency, typically around 90% at 50% load. This helps reduce wasted energy, lower heat output, and improve overall system efficiency.
Active PFC improves how the PSU draws power from the AC source by increasing power factor and reducing harmonic distortion. This supports cleaner power usage and helps meet industrial power quality expectations.
The PSU includes over-current protection (OCP), over-voltage protection (OVP), over-temperature protection (OTP), and short-circuit protection (SCP). If an abnormal condition occurs, the unit shuts down to protect itself and connected devices, then resets when conditions return to normal.
The FSP350-57FCB uses an easy-swap cable harness design. This allows the cable bundle to be disconnected or replaced more easily during maintenance than a traditional fixed-cable design.
