Customer: Cybenetics LTD
Syrou 6, Latsia, 2231, Nicosia Cyprus
Syrou 6, Latsia, 2231, Nicosia Cyprus
Classic II EV Gold Full Modular 850W
| 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) | 89.232% | 90.919% |
| Efficiency Graphs |  |  |
| Average PF (>1450 Load Combinations) | 0.994 | 0.974 |
| 12V Step | 8.00W | |
| 5V/3.3V Step | 2.00W | |
| Standby Power Consumption | 0.0891W | 0.1530W |
| ErP Lot 3/6 Ready | ✓ | |
| (EU) No 617/2013 Compliance | ✓ | |
| Average Efficiency VSB | 77.835% | 76.779% |
| Voltage | 115V | 230V |
|---|---|---|
| Noise Rating (>1450 Load Combinations) | 26.60dBA | 28.76dBA |
| Noise Graphs |  |  |
| Efficiency With 10W (≤500W) or 2% (>500W) Load | 63.790% |
| Hold Up Time | 13.60ms |
| Power OK | 11.40ms |
| Power OK to DC Loss | 2.20ms |
| Test\Rail | +12V | 5V | 3.3V | 5VSB |
| 100ms | 11.916 | 5.060 | 3.282 | 5.014 |
| 10ms | 11.662 | 5.039 | 3.257 | 4.983 |
| 1ms | 11.535 | 5.027 | 3.243 | 4.965 |
| 0.1ms | 11.415 | 5.017 | 3.228 | 4.943 |
| Product Identification Details | |
| Brand | Micronics |
| Model | Classic II EV Gold Full Modular 850W |
| OEM/ODM | Sirfa |
| Serial Number | - |
| Product Specifications | |
| Manufacturer | |
| Rated Voltage (Vrms) | 100-240 |
| Rated Current (Arms) | 5-10 |
| Rated Frequency (Hz) | 50-60 |
| Rated Power (W) | 850 |
| Operating Temperature (Continuous Full Load) (°C) | 0 - 40 |
| Type | ATX12V |
| Cable Design | Fully Modular |
| Warranty | No Info |
| Cybenetics | |
| Dimensions (W x H x D) | 150 x 85 x 140mm |
| Weight | 1.20 kg (2.65 lb) |
| Cooling | 120mm Sleeve Bearing Fan (PY-1225M12S) |
| Semi-Passive Operation | ✓ |
| Cybenetics Testing Information | |
| Lab ID | MI85003293 |
| Date of receipt | May 6, 2026 |
| Testing Date | May 27, 2026 |
| Report Issued Date | Jun 8, 2026 |
| Engineer Name | Ioannis Kalyviotis |
| 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 (600mm) | 1 | 1 | 18AWG | Tinned Copper |
| 4+4 pin EPS12V (700mm) | 1 | 1 | 18AWG | Tinned Copper |
| 8 pin EPS12V (700mm) | 1 | 1 | 18AWG | Tinned Copper |
| 6+2 pin PCIe (600mm+150mm) | 1 | 2 | 18AWG | Tinned Copper |
| 6+2 pin PCIe (600mm) | 1 | 1 | 18AWG | Tinned Copper |
| 12+4 pin PCIe (700mm) (600W) | 1 | 1 | 16-24AWG | Tinned Copper |
| SATA (510mm+155mm+155mm+155mm) | 1 | 4 | 18AWG | Tinned Copper |
| SATA (510mm+160mm) / 4-pin Molex (+160mm+150mm) | 1 | 2 / 2 | 18AWG | Tinned Copper |
| Over Power Protection | ✓ |
| Over Current (+12V) Protection | ✓ |
| Over Temperature Protection | ✓ |
| Short Circuit Protection | ✓ |
| Surge Protection | ✓ |
| Inrush Current Protection | ✓ |
| Fan Failure Protection | ✗ |
| General Data | |
| Manufacturer (OEM) | Sirfa |
| PCB Type | Double-Sided |
| Primary Side | |
| Transient Filter | 4x Y caps, 2x X caps, 3x CM chokes, 1x MOV |
| Inrush Protection | NTC Thermistor SCK 057 ( 5Ohm @ 25°C) & Relay |
| Bridge Rectifier | 1x |
| APFC MOSFETs | 2x Sanrise Tech SRC65R108BS (650V, 13A @ 125°C, Rds(on): 0.108Ohm) |
| APFC Boost Diode | Macrocore Semiconductor HX1D08065F (650V, 8A @ 125°C) |
| Bulk Cap(s) | Teapo (400V, 820uF, 2000h @ 105°C, LE ) |
| Main Switchers | 2x CWS60R099BF (600V, 25A @ 100°C, Rds(on): 0.099Ohm) |
APFC Controller | Infineon ICE3PCS01G |
Resonant Controller | Champion CM6901X |
| Topology | Primary side: APFC, Half-Bridge & LLC Resonant Converter Secondary side: Synchronous Rectification & DC-DC converters |
| Secondary Side | |
| +12V MOSFETs | 6x IPS 014N04SA (40V, 100A @ 100°C) |
| 5V & 3.3V | DC-DC Converters: 4x Sanrise Tech SRT03N050L (30V, 35A @ 100°C, Rds(on): 5.0mOhm) PWM Controller(s): uPI Semi uP3861P |
| Filtering Capacitors | Electrolytic: |
| Supervisor IC | Weltrend WT7527RA |
| Fan Power Switch | D882 NPN Power Transistor |
| Fan Model | PY-1225M12S (120mm, 12V, 0.26A, Sleeve Bearing) |
| 5VSB Circuit | |
| Rectifier | PFC P10V465 (45V, 10V) |
| Standby PWM Controller | Chipown PN8141 |
| 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 dB |
| Noise Output | ±1.23 dB |