G1236-2000WNA – 2000W CRPS Power Supply Optimized for Scalable Server and Storage Platforms
The G1236-2000WNA power supply is designed for server, storage, and networking applications. It features a compact 1U CRPS-standard form factor (185 x 73.5 x 40 mm), ideal for high-density system integration.
This redundant AC/DC power supply delivers 12V at 166.66A and 12V standby at 2.1A. It supports a wide input voltage range of 90–264Vac / 180–300Vdc, making it suitable for global deployment.
Equipped with digital control and a PMBus 1.2 interface, the unit enables real-time monitoring and remote management. Active Power Factor Correction (PFC) ensures high efficiency and stable operation.
Intelligent fan control optimizes cooling performance while reducing acoustic noise. A reverse airflow option supports flexible system configurations.
Certified to UL, CE, FCC, CB, and CCC standards, the G1236-2000WNA complies with global safety and electromagnetic compatibility (EMC) requirements.
Features
CRPS-185: 185×73.5x40mm(LxWxH)
CRPS-265: 265×73.5x40mm(LxWxH)
Input: 90 to 264Vac,180-300VdC
Hot-plug
Full Digital control
Active Power Factor Correction
Intelligent-thermal Fan Control
N+N N+1 Redundant
Reverse Airflow Option
Applications
Server
Storage
Networking
HPC
Edge Computing
Telecom
AI Training
Industrial Automation
Approvals
UL/cUL
CB
TuV-Mark
CCC/CQC
FCC
CE
NOM
BIS
Specifications
| Output Power (W): | 2000 |
| Length (mm): | 185 |
| Width (mm): | 73.5 |
| Height (mm): | 40 |
| Mounting Type: | Hot pluggable |
| Minimum Output Current (A): | 0 |
| Maximum Output Current (A): | 166.66 |
| Output Voltage (V): | 12 |
| Minimum Output Power (W): | 0 |
| Maximum Output Power (W): | 2000 |
| Minimum Input Voltage (V): | 90 |
| Maximum Input Voltage (V): | 264 |
Model Selection Comparison Table
| Model | Power | Output Current | PMBus | Form Factor | Recommended Use |
| G1236-2000WNA | 2000W | High-current 12V | Yes | CRPS-185 | HPC / AI dense compute nodes & general high-performance servers |
| G1236-2200WNA | 2200W | 12V with more headroom | Yes | CRPS-185 | GPU-heavy & hybrid AI-storage nodes needing extra margin |
| G1236-2400WNA | 2400W | 12V high-amp | Yes | CRPS-185 | For multi-GPU high-draw blade nodes |
| G1236-2600WNA | 2600W | 12V very-high amp | Yes | CRPS-185 | Performance-optimized compute racks |
| G1236-3000WNA | 3000W | Extreme high-amp | Yes | CRPS-185 | Custom ultra-dense platforms only |
Deployment Scenarios
The G1236-2000WNA is widely deployed in compute-dense environments where sustained current output and high-reliability power delivery directly impact service uptime. Its 12V@166.66A rail and hot-swap redundancy make it suitable for high-load, long-run systems:
| Scenario | What system demands | Why G1236-2000WNA fits |
| AI Training / GPU Servers | Constant high current + burst spikes | Titanium efficiency reduces heat + stable 166.66A rail |
| HPC Compute Racks | Fast load transitions + I/O churn | Low ripple + transient responsiveness handle fast switching |
| NAS / Storage Clusters | 24/7 uptime + RAID-sensitive power stability | Redundant CRPS avoids array rebuild downtime |
| Edge Data Centers | Tight thermal envelope + limited space | 1U CRPS-185 size + smart fan curve reduces noise & heat |
| Telecom / 5G Rooms | Unstable global input voltage | 90-264Vac & 180-300Vdc wide input for global deployment |
| CDN / Cloud POP Nodes | High rack density + limited PSU space | Compact footprint = more nodes per rack unit |
Power Architecture & Reliability Design
To maintain long-term power integrity under heavy workloads, the G1236-2000WNA is built with a stability-oriented power stage and protection mechanisms designed for mission-critical deployments:
- Independent power stage MOSFET layout reduces thermal stacking under sustained draw
- Digital PFC control loop increases efficiency under part-load operation (40-80%)
- Low-ripple VRM output helps maintain CPU/GPU clock integrity during current spikes
- Fast transient compensation prevents brownout or voltage sag under burst workloads
- Smart thermal fan profile minimizes unnecessary RPM, extending fan MTBF and lowering noise
- Reverse airflow option suited for front-to-back rack cooling channels without modification
- Titanium-class efficiency reduces conversion loss & lowers cooling cost over years of runtime
- PMBus 1.2 telemetry enables predictive maintenance via voltage/temperature/fault reporting
Power Operating Notes
| Reference Condition | Suggested Guidance |
| Continuous Operating Load | 70–90% recommended for best lifecycle |
| Typical DC Temperature | 18–38°C cold-aisle rack airflow recommended |
| Hot-Aisle Pressure | Ensure open exhaust path + balanced airflow |
| Redundancy Mode | N+1 / N+N supported with hot-swap replacement |
| Fan Speed Strategy | Optimized for GPU-load peaks, allow short bursts at high RPM |
| Recommended Chassis | Prefer 1U/2U dense rack with front-to-back ventilation |
| Transient Handling | Suitable for AI inference workloads with rapid load swings |
| Monitoring Advice | Enable PMBus for proactive temp/current tracking |
FAQ
Q1 — Does the G1236-2000WNA support redundant operation?
Yes. Fully supports N+1 / N+N redundancy with hot-swap replacement.
Q2 — Can this PSU be customized for OEM hardware?
Yes — fan direction, bracket, pinout, firmware & PMBus telemetry can be customized.
Q3 — Which compliance certifications does it meet?
UL / CE / FCC / NOM / CCC / BIS — suitable for global deployment.
Q4 — Recommended workload type?
High-density compute, GPU AI clusters, HPC, NAS storage arrays, telecom-core racks.
Q5 — Does the G1236-2000WNA support PMBus telemetry?
Yes — PMBus 1.2 allows real-time power, fault & thermal reporting.
Q6 — Input voltage flexibility for different regions?
Supports 90–264Vac and 180–300Vdc, ideal for mixed AC/DC deployments.
Q7 — Recommended infrastructure type for best efficiency?
AI inference farms, 1U CRPS-185 density racks, cloud compute blades.
Q8 — Fan configuration options?
Normal flow or reverse airflow available for front-to-back thermal channels.