YH5851-1EB01R2A0D 850W 1U Redundant AC/DC IPC Power Supply
- Technology
- IPC industrial computer power supplies
- Partner
- FSP Protek
The YH5851-1EB01R2A0D is a high-reliability 850 W power supply in a compact 1U form factor with a 1+1 redundant architecture for mission-critical systems. Its two hot-swappable modules support continuous operation during maintenance or replacement. With 80 PLUS Platinum efficiency, it helps reduce waste heat and operating costs. The unit supports full-range 90–264 VAC input as well as 190–310 VDC input for flexible deployment. It provides standard ATX-compatible outputs including +3.3 V, +5 V, +12 V, -12 V, and +5 V standby. PMBus 1.2 support enables real-time monitoring and system-level power management. Designed for industrial and data centre environments, it operates from -5 °C to +50 °C. Its safety, EMC compliance, and 100,000-hour MTBF make it suitable for reliable long-term use.
This 850 W redundant AC/DC power supply is built for industrial PCs, servers, storage platforms, and networking systems that require continuous uptime. Its compact 1U design, hot-swappable dual-module architecture, and PMBus 1.2 monitoring support make it a strong fit for dense, mission-critical installations where efficiency, serviceability, and power resilience are essential.
Range features
A high level overview of what this range offers
- 1+1 redundant hot-swappable design: Maintains continuous power during module failure, servicing, or replacement.
- 850 W output in a compact 1U form factor: Delivers high-density power for rackmount and space-constrained systems.
- 80 PLUS Platinum efficiency: Reduces power loss, heat generation, and cooling demand.
- Wide AC and DC input support: Accepts 90–264 VAC and 190–310 VDC for flexible deployment across global and DC-backed infrastructures.
- Standard ATX output rails: Provides +3.3 V, +5 V, +12 V, -12 V, and +5 Vsb for broad system compatibility.
- PMBus 1.2 interface: Enables monitoring, diagnostics, and integration into intelligent power management platforms.
- No minimum load requirement: Supports stable operation even under low-load or standby conditions.
- Industrial-grade reliability: Offers 100,000-hour MTBF and broad international safety and EMC certifications.
What’s in this range?
All the variants in the range and a comparison of what they offer
Specification | Value |
Model Number | YH5851-1EB01R2A0D |
Form Factor | 1U rackmount, 1+1 redundant |
Dimensions | 355 mm × 106 mm × 41.5 mm |
Total Power Output | 850 W |
Efficiency | 80 PLUS Platinum |
AC Input Voltage | 90–264 VAC |
DC Input Voltage | 190–310 VDC |
Input Frequency | 47–63 Hz |
Input Current | 12.0 A @ 115 VAC; 6.0 A @ 230 VAC |
Inrush Current | 60 A @ 264 VAC |
Power Factor | ≥0.95 at 115/230 VAC |
Earth Leakage Current | ≤3.5 mA @ 240 VAC per module |
DC Outputs | +3.3 V, +5 V, +12 V, -12 V, +5 Vsb |
PMBus Support | Yes, PMBus 1.2 compliant |
No Minimum Load | Supported |
MTBF | 100,000 hours @ 25 °C |
Operating Temperature | -5 °C to +50 °C |
Storage Temperature | -40 °C to +70 °C |
Operating Humidity | 0% to 85% RH non-condensing |
Operating Altitude | Up to 5,000 m |
Safety Certifications | UL, cUL, TUV, CB, CE, CCC, FCC |
EMI/EMC Compliance | EN 55022 Class A; EN 61000-3-2/-3-3; EN 61000-4-4/-4-5/-4-6 |
Output Rail | Minimum Load | Maximum Load | Combined Power Limit / Condition | Ripple & Noise (p-p) |
+3.3 V | 0 A | 25 A | +3.3 V and +5 V combined ≤ 210 W | 50 mV |
+5 V | 0 A | 36 A | Shares ≤ 210 W with +3.3 V | 50 mV |
+12 V | 0 A | 70 A | – | 120 mV |
-12 V | 0 A | 0.5 A | – | 120 mV |
+5 Vsb | 0 A | 3 A | – | 50 mV |
FAQs
for YH5851-1EB01R2A0D 850W 1U Redundant AC/DC IPC Power Supply
It means the unit contains two independent power modules operating in parallel. Under normal conditions both share the load, and if one module fails or is removed, the other can continue supplying the system. This supports continuous operation and allows hot-swapping without shutting down the equipment.
The power supply is rated 80 PLUS Platinum, indicating very high conversion efficiency. This helps reduce wasted energy, lowers heat output, and can improve overall system power and cooling efficiency in always-on installations.
The unit supports 90–264 VAC for AC input and 190–310 VDC for DC input. This wide input range makes it suitable for global mains environments as well as high-voltage DC infrastructure.
It provides standard ATX output rails: +3.3 V, +5 V, +12 V, -12 V, and +5 Vsb. The +3.3 V and +5 V rails share a combined limit of up to 210 W, while the +12 V rail can deliver up to 70 A.
Yes. The PSU includes a PMBus 1.2 interface for digital monitoring and management. This allows system-level access to operating data and supports proactive maintenance and integration into intelligent control systems.
No. The YH5851-1EB01R2A0D does not require a minimum load on its outputs. It is designed to maintain stable regulation even in low-load or idle operating states.
The unit is rated for operation from -5 °C to +50 °C with 0% to 85% RH non-condensing humidity. It can also operate at altitudes up to 5,000 m and is designed to withstand industrial shock and vibration conditions.
This model is designed for long-term continuous use, with an MTBF of 100,000 hours at 25 °C. It carries major international approvals including UL, cUL, TUV, CB, CE, CCC, and FCC.
