Active PFC
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100% Chroma ATE Tested

F42 Active PFC Dual-PCB Series

F42 (350W–850W)
Active PFC · Dual-Layer PCB · 85% EfficiencyIntel ATX 3.1 & PCIe 5.1SendustCore™ Active PFCOEM / ODM Available

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) ↓
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

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.

Efficiency

≥90%

80 PLUS Gold certified

Transient

≤50 µs

Fast recovery response

Protection

9-Fold

Hardware safety suite

Reliability

>100k h

MTBF industrial rating

OEM / ODMTailored Program Support

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 specs

Active 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.

F42 Active PFC Dual-PCB Series Primary View
Engineering view 01

Chassis & Enclosure

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

F42 Active PFC Dual-PCB Series Detail View 1
Engineering view 02

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.

ATX 3.1 & 12V-2x6 FAE SLA

Direct FAE evaluation for GPU transient spikes (200% excursion), 12V-2x6 cable clearance, and motherboard 24-pin compatibility within 24 hours.

PC Bench-Test Samples

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 Cables & PSU Housing

Custom embossed/braided modular cables, customized casing finishes (Black/White), branded fan grilles, and bilateral NDA protection.

Chroma 8000 & 80 PLUS Logs

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

  1. 1
    Platform & Wattage Selection: Choose standard wattage (550W–1050W), modular format (Full/Semi/Direct), or custom embossed cable lengths.
  2. 2
    Chassis & GPU Compatibility Review (<24h): Our FAEs verify 140mm chassis depth fitment, 12V-2x6 thermal safety, and thermal airflow curves.
  3. 3
    EVT Prototype & Bench Test: Receive working samples for system smoke test & motherboard validation, followed by mass production.
Need urgent desktop PC or server PSU engineering support?Fast Track

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.

Fast Inquiry

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Downloads

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