H18 Half-Bridge Single-Choke Series
H18 (230W–350W)Economical 230W–350W desktop power supply combining half-bridge architecture with single magnetic choke ring and full-range 90–264V AC input for value-focused commercial builds.
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 specsOptimized single-ring half-bridge layout achieving attractive price-to-performance ratio
Configuration and availability require confirmation for the final product program.
Full-range 90–264V AC input capability providing stable operation in fluctuating voltage areas
Configuration and availability require confirmation for the final product program.
Active PFC design with SendustCore choke for power factor exceeding 0.98
Configuration and availability require confirmation for the final product program.
Intelligent thermal sensor regulating fan speed from 1200 RPM for quiet operation
Configuration and availability require confirmation for the final product program.
Comprehensive 9-fold hardware protection suite including Brown-out, OVP, UVP, and surge
Configuration and availability require confirmation for the final product program.
Zero minimum load (0A) output supporting deep C-state sleep on modern motherboards
Configuration and availability require confirmation for the final product program.
Long output harness allowing clean rear-panel cable routing in standard desktop cases
Configuration and availability require confirmation for the final product program.
Broad processor and motherboard compatibility covering mainstream office platforms
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.
Internal Architecture & Layout 2
Internal component layout showcasing filtration stage, transformer section, and precision manufacturing.
Internal Architecture & Layout 3
Internal component layout showcasing filtration stage, transformer section, and precision manufacturing.
Structured data
Specifications
Designed for maximum cost efficiency in high-volume system integration, the H18 series features a streamlined single magnetic ring half-bridge topology while retaining Active PFC and full-range 90–264V AC compatibility. It offers dependable day-to-day power with low failure rates.
H18 Half-Bridge Single-Choke 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
- 230 W – 350 W
- Efficiency tier
- Energy-saving entry efficiency (~78%–80%)
- Topology
- Half-Bridge with Single Magnetic Choke Ring
- Standard
- Intel ATX 12V compliant
- AC input range
- 90 – 264 V (Full Range low-voltage start)
- Dynamic response
- ≤50 µs transient recovery time
- Power factor
- >0.98 (SendustCore APFC choke)
- Ripple & noise
- +5V/+3.3V <50mV, +12V <120mV
- Cooling fan
- 120 mm smart thermal fan (min 1200 RPM)
- Modularity
- Direct-wire with extended 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.