F42 Active PFC Dual-PCB Series
F42 (350W–850W)Reliable 350W to 850W power platform utilizing Active PFC combined with two-switch forward topology on a dual-layer glass fiber PCB, achieving up to 85% efficiency across global 90–264V mains.
Product Specifications
Full breakdown (12 specs) ↓Platform overview
Designed around the brief.
Built to rigorous industrial standards with verified thermal dynamics, precision topology control, and high-efficiency power delivery engineered for heavy compute demands.
≥90%
80 PLUS Gold certified
≤50 µs
Fast recovery response
9-Fold
Hardware safety suite
>100k h
MTBF industrial rating
Custom wattage bins (550W–1050W), bespoke cable harness lengths, custom fan curves, and private label chassis grilles available for enterprise orders.
Inquire for custom platform specsActive PFC circuitry paired with two-switch forward topology for up to 85% energy efficiency
Configuration and availability require confirmation for the final product program.
Double-sided glass fiber PCB layout offering superior mechanical strength and heat dissipation
Configuration and availability require confirmation for the final product program.
Wide-range 90–264V AC input capability providing stable operation in fluctuating voltage areas
Configuration and availability require confirmation for the final product program.
SendustCore magnetic inductor delivering power factor correction over 0.98
Configuration and availability require confirmation for the final product program.
Smart temperature-controlled fan curve balancing cooling performance and acoustic comfort
Configuration and availability require confirmation for the final product program.
Long extended cables accommodating bottom-mounted PSU chassis and rear cable management
Configuration and availability require confirmation for the final product program.
Full safety compliance with electrostatic discharge (ESD) and lightning surge protection
Configuration and availability require confirmation for the final product program.
Versatile PCIe 6+2Pin connectors supporting mainstream discrete graphics hardware
Configuration and availability require confirmation for the final product program.
Architecture & Hardware Showcase
Precision engineering, inside and out.
Direct view into component selection, structural PCB layout, and thermal topology.

Chassis & Enclosure
Durable matte black / industrial enclosure designed for optimal ventilation and component protection.

Internal Architecture & Layout 1
Internal component layout showcasing filtration stage, transformer section, and precision manufacturing.
Structured data
Specifications
Designed for mainstream commercial desktops, gaming SI builds, and corporate workstations, the F42 series combines proven two-switch forward architecture with Active PFC and a high-reliability double-sided PCB layout. Features a quiet 1200 RPM thermal fan curve, long flat cabling, and multi-rail short-circuit and surge protection.
F42 Active PFC Dual-PCB Series Engineering Datasheet
PDF · Mechanical dimensions & pinouts
Manufacturing & Test Standards
- Chroma 8000 automated test validation
- 100% Hi-Pot & thermal burn-in tested
- Intel ATX 3.1 & PCIe 5.1 native certification
- Taiwan / Japanese 105°C primary capacitor tier
Need custom voltage tolerances, custom cable harnesses or compliance records? Contact our power engineering team →
- Rated output
- 350 W – 850 W
- Efficiency tier
- Up to 85% typical (Bronze tier performance)
- Topology
- Active PFC + Two-Switch Forward
- Standard
- Intel ATX 12V 2.52
- AC input range
- 90 – 264 V (Full Range low-voltage start)
- Dynamic response
- ≤50 µs transient recovery time
- Power factor
- >0.98 (SendustCore PFC choke)
- Ripple & noise
- +5V/+3.3V <50mV, +12V <120mV
- Cooling fan
- 120 mm smart thermal fan (min 1200 RPM)
- Modularity
- Direct-wire with extended flat ribbon cables
- Protection suite
- Brown-out, OVP, UVP, OCP, OPP, SCP, ESD, Surge, EMC
- MTBF
- >100,000 hours
PC Power Supply Engineering
PC Power Supply OEM/ODM & Technical Support
Direct technical & commercial access for desktop, gaming rig, and workstation power supplies. Discuss wattage sizing (550W–1050W), ATX 3.1 & 12V-2x6 GPU delivery, modular cabling, and PC chassis compatibility with our engineering team.
Direct FAE evaluation for GPU transient spikes (200% excursion), 12V-2x6 cable clearance, and motherboard 24-pin compatibility within 24 hours.
Golden engineering units shipped in 3–5 days to validate PC chassis mounting, FDB fan acoustic profiles, and GPU power delivery under real loads.
Custom embossed/braided modular cables, customized casing finishes (Black/White), branded fan grilles, and bilateral NDA protection.
Complete ATE automated test reports (ripple <30mV, voltage regulation <±1.5%), cross-load efficiency curves, thermal imaging, and 3D CAD STEP files.
PC Power Supply Project Roadmap
- 1Platform & Wattage Selection: Choose standard wattage (550W–1050W), modular format (Full/Semi/Direct), or custom embossed cable lengths.
- 2Chassis & GPU Compatibility Review (<24h): Our FAEs verify 140mm chassis depth fitment, 12V-2x6 thermal safety, and thermal airflow curves.
- 3EVT Prototype & Bench Test: Receive working samples for system smoke test & motherboard validation, followed by mass production.
For urgent PC system integration, gaming rig bids, or high-volume PSU orders, contact our power supply engineering team via larry@encon.ltd for immediate assistance.
Downloads
Formal product documents are not yet available.
Ask ENCON for the latest approved datasheet or certification document.