G1251-0150WNA – 150W Compact CRPS Power Supply for Energy-Efficient IT Solutions
The G1251-0150WNA is a 150-watt CRPS-format power supply tailored for low-to-medium power server, storage, and networking systems. Encased in a slim 1U chassis (185 x 73.5 x 40 mm), it is ideal for applications requiring space conservation and energy efficiency without compromising reliability.
This unit supports both AC and DC wide-range input voltages (90–264Vac / 180–300Vdc), delivering a regulated 12V at 12.5A and a 12V standby output at 2.1A. Equipped with digital control architecture and PMBus 1.2 protocol, it allows remote supervision, fault detection, and flexible configuration for system administrators.
Designed with active power factor correction (PFC), the G1251-0150WNA ensures consistent power delivery with optimized conversion efficiency. Its smart fan system adapts dynamically to thermal conditions, minimizing noise levels during low loads. For specific airflow needs, a reverse airflow option is also available.
Certified for global deployment with UL, CE, FCC, CB, and CCC approvals, this power supply meets rigorous safety and EMC standards—making it a reliable and compact power solution for modern infrastructure.
Features
CRPS-185: 185×73.5x40mm(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
AI Data Centers
Cloud Computing
Enterprise IT Systems
Medical Imaging Equipment
Approvals
UL/cUL
CB
TuV-Mark
CCC/CQC
FCC
CE
NOM
BIS
Specifications
|
Output Power (W): |
150 |
| Length (mm): |
185 |
| Width (mm): |
73.5 |
| Height (mm): |
40 |
|
Mounting Type: |
Hot pluggable |
|
Minimum Output Current (A): |
0 |
|
Maximum Output Current (A): |
12.5 |
|
Output Voltage (V): |
12 |
|
Minimum Output Power (W): |
0 |
|
Maximum Output Power (W): |
150 |
|
Minimum Input Voltage (V): |
90 |
|
Maximum Input Voltage (V): |
264 |
Model Selection Comparison Table
|
Model |
Power | Output Current | PMBus | Form Factor | Recommended Use |
| G1251-0150WNA | 150W | Low-power 12V output | Yes | CRPS-185 |
Embedded, micro-edge compute |
| 250W | 12V with higher headroom | Yes | CRPS-185 | Network appliances with more load | |
| G1251-0350WNA | 350W | 12V mid-range output | Yes | CRPS-185 |
SMB servers, storage nodes |
| 460W | 12V sustained high output | Yes | CRPS-185 | Compute+I/O mixed systems | |
| G1251-0550WNA | 550W | 12V top segment output | Yes | CRPS-185 |
Dense and multi-device rails |
Deployment Scenarios
The G1251-0150WNA is designed for small-form server boards, embedded compute, low-power micro-edge devices and telecom terminals where efficiency and reliability matter more than raw watt output. With 150W continuous delivery, it fits systems that must remain stable under modest but continuous draw, often powered in distributed deployment where maintenance windows are limited.
|
Scenario |
What system demands | Why G1251-0150WNA fits |
| Micro Edge Devices | Compact systems with limited thermal allowance |
150W is sufficient for low-power CPUs and network cards without excess heat |
|
Network Gateways & Routers |
Long-hour runtime with light load cycling | Efficient 12V regulation avoids ripple-triggered reboot faults |
| Industrial Controllers | Stable voltage under constant I/O switching |
Low-noise DC stage supports PLC and logic boards |
|
Small NAS / Media Nodes |
Continuous operation in confined spaces | Lower fan requirement reduces acoustic footprint |
| Distributed Telecom Units | Remote deployment with redundancy demand |
Hot-swap CRPS form factor simplifies field replacement |
|
Educational Labs & R&D Platforms |
Budget-power rigs for testing & firmware work |
Safe headroom for dev boards, SSDs and accelerator add-ons |
Power Architecture & Reliability Design
The G1251-0150WNA favors power stability within compact power envelopes rather than peak delivery. It keeps voltage noise minimal across 12V output lines, making it suitable for boards sensitive to ripple or line drop when I/O toggles rapidly. Its lightweight thermal profile allows quiet airflow or passive chassis support, which benefits remote long-term deployment.
- Compact 12V rail topology optimized for light load stability under non-stop duty cycles
- Fine-tuned DC filtering network reduces output ripple for logic-board protection
- Low-loss PFC stage improves conversion efficiency in idle-dominant workloads
- Tight transient control reacts quickly during SSD or NIC surge events
- Thermal distribution layout prevents heat accumulation around PFC coils
- Adaptive cooling logic maintains quiet operation under partial loading
- Robust fault isolation (OVP/OCP/OTP/SCP) prevents cascading failure across nodes
- PMBus monitoring hooks enable voltage/current trend tracking for maintenance
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 Strategy |
Often runs near-silent due to low watt density |
|
Recommended Chassis |
Ideal for compact micro-edge enclosures |
| Peak Load Response |
Handles short read/write bursts without sag |
|
Monitoring Advice |
Use PMBus logs for remote distributed clusters |
FAQ
Q1 — Does the G1251-0150WNA 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 — firmware tuning, connector mapping, airflow direction and PMBus can be customized.
Q3 — Which compliance certifications does it meet?
UL / CE / FCC / NOM / CCC / BIS — suitable for global deployment.
Q4 — Recommended workload type?
Low-power compute, embedded networking, small NAS, edge nodes and industrial controllers.
Q5 — Does it support PMBus telemetry?
Yes — real-time power/temperature monitoring is available.
Q6 — Input voltage range handling?
Supports wide input AC window; ideal for distributed or mixed-region install.
Q7 — Best use scenario for efficiency?
Systems spending most time under partial load benefit from its low-loss design.
Q8 — Airflow configuration availability?
Normal and reverse airflow options depending on chassis layout.