Key Takeaways
- The FSP350-70PFL power supply is a 350W industrial switching power supply (350W) built as an IPC PSU for automation, communication, and industrial computing environments.
- It combines 80 Plus Bronze efficiency with an active PFC circuit, supporting full range 90-264Vac input for global installations.
- Power quality targets include low ripple and noise output (e.g., 50mV p-p on 3.3V/5V and 120mV p-p on 12V rails), helping stability for IPC, server, and workstation loads.
- Protection coverage includes output over voltage protection, short circuit protection on all outputs, and a resettable power shutdown behavior for fault recovery.
- Designed for uptime-focused deployments with 100K hours MTBF high reliability (100,000 hours at 25°C) and qualification screening such as burn-in at 50°C and Hi-pot testing.
When an industrial PC reboots, a production line can pause, data can be lost, and remote troubleshooting can turn into a costly site visit. The FSP350-70PFL power supply is engineered to reduce that risk: a 350W industrial switching power supply designed as an IPC PSU for long-run stability in a server and workstation power system, communications equipment, and automation control cabinets.
Highlights from the TPS Product Landing Page
On the TPS shop page, the FSP350-70PFL (SK) is positioned as a durable, high-performance 350W ATX industrial power supply for demanding environments such as servers, automation systems, workstations, and communication equipment. The page also emphasizes universal 90–264 VAC input, an 80 PLUS Bronze rating reaching up to 85% efficiency, comprehensive protections (OCP/OVP/OTP and short-circuit), 50°C burn-in and Hi-pot testing, plus an MTBF target of 100,000 hours at 25°C—useful checkpoints when qualifying an IPC PSU for regulated or uptime-critical deployments.
Efficiency + Active PFC for Global Industrial Deployments
This unit is built around an active PFC circuit and is specified for full range 90-264Vac input (47–63 Hz), which helps standardize a single PSU choice across multi-site, multi-country rollouts.
For energy-conscious builds, it targets 80 Plus Bronze efficiency, with the technical sheet listing efficiency at 85% @ 230 VAC.
Power Quality: Low Ripple and Noise Output for Stable IPC Loads
Industrial computing often mixes sensitive I/O, storage, and communication modules—so output cleanliness matters. The specification calls out low ripple and noise output with limits such as 50 mV p-p on 3.3V and 5V, and 120 mV p-p on 12V rails (12V1/12V2), supporting stable behavior under real-world load changes.
The PSU provides standard ATX-style rails (+3.3V, +5V, dual +12V, -12V, -5V option, and +5Vsb) for legacy and modern industrial PC configurations, while keeping total output within the 350W budget.
Protection & Recovery: Built to Handle Faults in the Field
In cabinets and edge deployments, wiring mistakes and peripheral faults happen. The FSP350-70PFL (SK) protection stack includes output over voltage protection and short circuit protection on all outputs, plus a resettable power shutdown mechanism designed to help service teams restore operation after fault conditions are cleared.
Reliability Screening for 24/7 Operations
For systems that run around the clock, the datasheet highlights qualification steps such as 100% burn-in under high ambient temperature (50°C) and 100% Hi-pot testing, aligned with expectations for industrial-grade acceptance screening.
Reliability is specified as 100K hours MTBF high reliability, with a minimum predicted MTBF (MIL-HDBK-217) of 100,000 hours at 25°C, maximum output load, and nominal AC input voltage—an important baseline for a server and workstation power system or any always-on IPC PSU deployment.
Mechanical Fit for Industrial ATX Chassis
Planning an enclosure or retrofit? The unit is specified at 140mm (L) × 150mm (W) × 86mm (H), matching common PS/2 ATX mechanical expectations for industrial IPC chassis.
Where the FSP350-70PFL (SK) Fits Best
- IPC PSU upgrades where universal input and predictable protection behavior reduce support effort across sites.
- Automation and communication equipment needing low ripple and noise output for stable I/O and storage operation.
- Server and workstation power system builds that value 80 Plus Bronze efficiency, active PFC circuit, and documented reliability screening.
FAQ
Is the FSP350-70PFL (SK) suitable for global deployments?
Yes. The specification lists full range 90-264Vac input (47–63 Hz), which helps standardize deployments across regions without changing PSU variants.
What makes it a 350W industrial switching power supply rather than a consumer PSU?
The datasheet describes it as an industrial-level switching supply with an active PFC circuit, documented screening (burn-in at 50°C, Hi-pot), and a specified MTBF target—typical requirements for an IPC PSU and always-on industrial systems.
Which protections help reduce downtime after a fault?
The feature list includes output over voltage protection, short circuit protection on all outputs, and a resettable power shutdown approach intended to support recovery once the fault condition is removed.
How does the PSU support stable operation for sensitive loads?
It specifies low ripple and noise output limits (for example, 50mV p-p on 3.3V/5V and 120mV p-p on 12V rails), which helps stability for storage, communication cards, and control electronics under load transients.
Need Help Selecting the Right IPC PSU?
If you’re qualifying an FSP350-70PFL power supply for a server and workstation power system or industrial controller build, TPS Elektronik can support PSU selection, documentation alignment, and integration planning to speed validation—especially when your design requires 80 Plus Bronze efficiency, full range 90-264Vac input, and 100K hours MTBF high reliability.
