
RS1200G
| Electronic Loads | Chroma 63601-5 x2 Chroma 63600-2 Chroma 63640-80-80 x10 Chroma 63610-80-20 |
| AC Sources | Chroma 6530, APM SP300VAC4000W-P, GW Instek ASR-3500 |
| Power Analyzers | Rohde & Schwarz HMC8015 & NPA701 |
| Oscilloscopes | Picoscope 4444, Siglent SDS2104X PLUS |
| Sound Analyzer | Bruel & Kjaer 2270 G4 |
| Microphone | Bruel & Kjaer Type 4955-A |
| Temperature Logger | Picoscope TC-08 |
| Tachometer | UNI-T UT372 |
| Multimeters | Keysight 34465A |
| EMI Analyzer | TekBox TBMR-110M-EU |
| Isolation Transformer | 4kVA |
| UPS | FSP Champ Tower 3kVA, CyberPower OLS3000E 3kVA |
| Testing Methodology | Cybenetics PSU Test Protocol |
| Voltage | 115V | 230V |
|---|---|---|
| Efficiency (>1450 Load Combinations) | 89.344% | 91.198% |
| Efficiency Graphs | ![]() | ![]() |
| Average PF (>1450 Load Combinations) | 0.994 | 0.968 |
| 12V Step | - | |
| 5V/3.3V Step | - | |
| Standby Power Consumption | 0.0607W | 0.1493W |
| ErP Lot 3/6 Ready | ✓ | |
| (EU) No 617/2013 Compliance | ✓ | |
| Average Efficiency VSB | 79.874% | 78.698% |
| Voltage | 115V | 230V |
|---|---|---|
| Noise Rating (>1450 Load Combinations) | 24.59dBA | 24.85dBA |
| Noise Graphs | ![]() | ![]() |
| Efficiency With 10W (≤500W) or 2% (>500W) Load | 69.104% |
| Hold Up Time | 24.80ms |
| Power OK | 19.60ms |
| Power OK to DC Loss | 5.20ms |
| Test\Rail | +12V | 5V | 3.3V | 5VSB |
| 100ms | 11.833 | 4.964 | 3.242 | 5.003 |
| 10ms | 11.543 | 4.916 | 3.199 | 4.944 |
| 1ms | 11.401 | 4.898 | 3.179 | 4.918 |
| 0.1ms | 11.219 | 4.867 | 3.148 | 4.888 |
| Product Identification Details | |
| Brand | Lian Li |
| Model | RS1200G |
| OEM | Sirfa |
| Serial Number | - |
| Product Specifications | |
| Manufacturer | |
| Rated Voltage (Vrms) | 100-240 |
| Rated Current (Arms) | 8-15 |
| Rated Frequency (Hz) | 50-60 |
| Rated Power (W) | 1200 |
| Operating Temperature (Continuous Full Load) (°C) | |
| Type | ATX12V |
| Cable Design | Fully Modular |
| Warranty | |
| Cybenetics | |
| Dimensions (W x H x D) | |
| Weight | |
| Cooling | 135mm Fluid Dynamic Bearing Fan (HA13525H12F-Z) |
| Semi-Passive Operation | ✓ |
| Cybenetics Testing Information | |
| Lab ID | LL12002921 |
| Date of receipt | Jul 20, 2025 |
| Testing Date | Aug 7, 2025 |
| Report Issued Date | Aug 12, 2025 |
| Engineer Name | - |
| Authorized By the Laboratory Technical Manager | Aristeidis Bitziopoulos |
| Signature | ![]() |
| Modular Cables | ||||
| Description | Cable Count | Connector Count (Total) | Gauge | Cable Type |
| ATX connector 20+4 pin (625mm) | 1 | 1 | 16-22AWG | Tinned Copper |
| 4+4 pin ATX12V (700mm) | 1 | 1 | 18AWG | Tinned Copper |
| 8 pin ATX12V (700mm) | 1 | 1 | 18AWG | Tinned Copper |
| 6+2 pin PCIe (650mm) | 3 | 3 | 18AWG | Tinned Copper |
| 6+2 pin PCIe (650mm+100mm) | 1 | 2 | 18AWG | Tinned Copper |
| 12+4 pin PCIe (700mm) (600W) | 1 | 1 | 16-24AWG | Tinned Copper |
| SATA (400mm+150mm+150mm+150mm) | 1 | 4 | 18AWG | Tinned Copper |
| SATA (310mm+200mm+100mm+100mm) | 1 | 4 | 18AWG | Tinned Copper |
| SATA (300mm+15mm+15mm+15mm) | 1 | 4 | 18AWG | Tinned Copper |
| SATA (380mm+150mm) | 2 | 4 | 18AWG | Tinned Copper |
| 4-pin Molex (500mm+150mm+150mm+150mm) | 1 | 4 | 18AWG | Tinned Copper |
| Over Voltage Protection | ✓ |
| Under Voltage Protection | ✓ |
| Over Power Protection | ✓ |
| Over Current (+12V) Protection | ✓ |
| Over Temperature Protection | ✓ |
| Short Circuit Protection | ✓ |
| Surge Protection | ✓ |
| General Data | |
| Manufacturer (OEM) | Sirfa |
| PCB Type | Double-Sided |
| Primary Side | |
| Transient Filter | 4x Y caps, 2x X caps, 2x CM chokes, 1x MOV |
| Inrush Protection | NTC Thermistor SCK-057 (5 Ohm @ 25°C) & Relay |
| Bridge Rectifier | 2x Yangzhou GBJ3510A (1,000V, 35A @ 85°C) |
| APFC MOSFETs | 2x Sanrise Tech SRC60R068BS (600V, 21.5A @ 125°C, Rds(on): 68mOhm) |
| APFC Boost Diode | Macrocore HX1D10065A (650V, 10A @ 150°C) |
| Bulk Cap(s) | |
| Main Switchers | 2x Sanrise Tech SRC60R095BS (600V, 16A @ 125°C, Rds(on): 95mOhm) |
| APFC Controller | Infineon ICE3PCS01G |
| Resonant Controller | Champion CU6901VAC |
| Topology | Primary side: APFC, Half-Bridge & LLC Resonant Converter Secondary side: [12V] Synchronous Rectification & [Minor Rails] DC-DC converters |
| Secondary Side | |
| +12V MOSFETs | 8x SI40N11E |
| 5V & 3.3V | DC-DC Converters: 4x Infineon BSC0906NS (30V, 40A @ 100°C, Rds(on): 4.5mOhm) PWM Controller(s): UPI-Semi uP3861P |
| Filtering Capacitors | Electrolytic: |
| Supervisor IC | Weltrend WT7527RA (OVP, UVP, OCP, PG) |
| MCU | Geehy 32S030F6P6 |
| Fan Power Transistor | STMicroelectronics 2SD882 |
| Fan Model | Hong Hua HA13525H12F-Z (135mm, 12V, 0.50A, Fluid Dynamic Bearing Fan) |
| 5VSB Circuit | |
| Rectifier | |
| Standby PWM Controller | Si-Trend SI8016HSP8 |
| Photos | ![]() | ![]() |
| Top side | Power specifications label |
F.1 General Statement
Measurement uncertainty associated with the reported results was evaluated and estimated in accordance with JCGM 100:2008 (Guide to the Expression of Uncertainty in Measurement — GUM) and ISO/IEC 17025:2017, Clauses 7.6 and 7.2.
The uncertainty budget accounts for all significant identified contributors arising from the measurement process, instrumentation, test conditions, and operator interaction.
The reported expanded uncertainty U is obtained by multiplying the combined standard uncertainty uc by a coverage factor k = 2, corresponding to a confidence level of approximately 95 %, assuming a normal probability distribution.
Unless otherwise stated, the reported uncertainty applies only to the specific measurements performed and does not include long-term drift, aging effects, or future environmental changes.
F.2 Expanded Measurement Uncertainty by Measurement Type
| Measurement | Expanded Uncertainty U (k=2, norm) |
| Efficiency | ±0.18% |
| Timings | ±0.48ms |
| Power Excursions (Transient Response) | ±0.1V |
| Conducted EMI Emissions (150 kHz – 30 MHz) | ±2.35 dBμV |
| Noise Output | ±1.23 dB |