CYBENETICS LTD Syrou 6, Latsia, 2231, Nicosia Cyprus
Version:00
Micronics Classic II Full Change Silver 500W (#2)
Serial Number-
Lab IDMI50002942
Certification ID252942
  • Test Result Report ID: 25PS2942A
  • Certificate Issue Date: Aug 27, 2025
115V230V
Scheme: ETA-EMI PSU
115V230V
Scheme: LAMBDA PSU
Outside Validation Scope
Aristeidis Bitziopoulos, Certification Body General Manager

General Information

DUT Information

BrandMicronics
Manufacturer (OEM)Sirfa
SeriesClassic II
Model NumberMCL2500SVE12H
Serial Number-
DUT Notes

DUT Specifications

Rated Voltage (Vrms)200-240
Rated Current (Arms)5
Rated Frequency (Hz)50-60
Rated Power (W)500
TypeATX12V
Dimensions (W x H x D)
Cooling120mm Hydraulic Bearing Fan (GQR1225H12M)
Semi-Passive Operation✗
Cable DesignFixed cables

Power Specifications

Rail3.3V5V12V5VSB-12V
Max. PowerAmps181841.630.3
Watts100500153.6
Total Max. Power (W)500

Test Equipment

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

Cables and Connectors(Non-accredited measurements)

Captive Cables
Description Cable Count Connector Count (Total) Gauge In Cable Capacitors
ATX connector 20+4 pin (575mm) 1 1 18-22AWG No
8 pin EPS12V (620mm) / 4 pin ATX12V (+155mm) 1 1 / 1 18AWG No
6+2 pin PCIe (425mm+155mm) 1 2 18AWG No
SATA (400mm+150mm+150mm) 2 6 18AWG No
4-pin Molex (410mm+150mm+150mm) 1 3 18AWG No

Parts Description

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-0R78A (0.7 Ohm @25°C)
Bridge Rectifier(s)
Yangzhou GBU2510 (1000V, 3.5A @ 25°C without heat sink)
APFC MOSFETs
Sanrise Tech SRC65R300S (650V, 5.6A @ 125°C, Rds(on): 300mOhm)
APFC Boost Diode
Macrocore Semiconductor HX1D04065A
Bulk Cap(s)
Teapo (420V, 390uF, 2000h @ 105°C, LE)
Main Switchers
2x Way-On WML15N50D1B

Topology

Primary side: APFC, Double Forward
Secondary side: [12V] Synchronous Rectification & [Minor Rails] DC-DC converters
Secondary Side
+12V MOSFETs 4x Way-On WMK053NV8HGS (85V, 79A @ 100°C, Rds(on): 5.5mOhm)
5V & 3.3V DC-DC Converters: 4x Sanrise Tech SRT03N050L (30V, 35A @ 100°C, Rds(on): 5mOhm)
PWM Controller(s): UPI-Semi uP3861P
Filtering Capacitors

Electrolytic:
9x Teapo (1-3,000 @ 105°C, SC)
Teapo (1,000 @ 105°C, SC)
Polymer:
6x Teapo
Supervisor IC Weltrend WT7527RT (OVP, UVP, OCP, PG)
Fan Power Transistor STMicroelectronics 2SD882
Fan Model GQR1225H12M  (120mm, 12V, 0.20A, Hydraulic Bearing Fan)
5VSB Circuit
Rectifier (High Side)
PingWei PS1045 (45V, 10A)
Standby PWM Controller
Chipown PN8141

Test Results

Temperature & Compliance Info

Temperature Range (°C /°F)30-32 / 86-89.6
ErP Lot 3/6 Ready✓
(EU) No 617/2013 Compliance✓
ALPM (Alternative Low Power Mode) compatible✓
ATX v3.1 PSU Power Excursion✓

Performance Summary 230V

Efficiency RatingSILVER
Noise RatingA-
Average Efficiency (>1450 load combinations)88.358%
Average Noise Output (>1450 Load Combinations)28.06dBA
Average PF (>1450 Load Combinations)0.950
Efficiency With 10W (≤500W) or 2% (>500W) Load61.645%
Standby Power Consumption0.1585W
12V Ripple (Full Load)20.05mV
5V Ripple (Full Load)17.42mV
3.3V Ripple (Full Load)20.84mV
5VSB Ripple (Full Load)18.45mV
12V Load Regulation0.65%
5V Load Regulation0.62%
3.3V Load Regulation0.88%
5VSB Load Regulation3.08%
Inrush Current77.240A
12V Transient Response (150%)11.72V
5V Transient Response (150%)4.999V
3.3V Transient Response (150%)3.259V
5VSB Transient Response (150%)5.076V
Hold-Up Time & Power Ok Signal19.80ms
AC Loss to PWR_OK Hold Up Time14.10ms
PWR_OK Inactive to DC Loss Delay5.70ms
PSU Timings: T1 (20% / 100%)76.0ms79.0ms
PSU Timings: T3 (20% / 100%)123.0ms121.0ms
12V OCP (29.4°C / 45.2°C)47.29A (113.68%), 11.979V46.20A (111.06%), 11.980V
5V OCP (29.4°C / 45.2°C)23A (127.78%), 4.996V20.3A (112.78%), 5.001V
3.3V OCP (29.4°C / 45.2°C)22.8A (126.67%), 3.275V22.2A (123.33%), 3.275V
5VSB OCP (29.4°C / 45.2°C)4.1A (136.67%), 5.074V4.1A (136.67%), 5.073V
OPP (30.63°C / 44.38°C)132.59%126.51%

Hold-Up Time & Power Ok Signal

Hold-Up Time (ms)19.8
AC Loss to PWR_OK Hold Up Time (ms)14.1
PWR_OK Inactive to DC Loss Delay (ms)5.7

Vampire Power

Tables 230V

Detailed Results
Average Min Limit Min Max Limit Max Result
Mains Voltage RMS: 231.04 V 230.94 V 227.70 V 231.11 V 232.30 V PASS
Mains Frequency: 50.00 Hz 49.99 Hz 49.50 Hz 50.01 Hz 50.50 Hz PASS
Mains Voltage CF: 1.417 1.417 1.340 1.419 1.490 PASS
Mains Voltage THD: 0.17 % 0.14 % N/A 0.25 % 2.00 % PASS
Real Power: 0.159 W 0.113 W N/A 0.226 W N/A N/A
Apparent Power: 20.117 W 19.978 W N/A 20.253 W N/A N/A
Power Factor: 0.008 N/A N/A N/A N/A N/A

Graphs 230V

Efficiency Graph

230V

INFO

This graph depicts the PSU`s efficiency throughout its entire operational range. For the generation of the efficiency and noise graphs we set our loaders to auto mode through our custom-made software before trying thousands of possible load combinations

Noise Graph

230V

INFO

The PSU`s noise in its entire operational range and under 30-32 °C ambient is depicted in this graph. The X axis represents the load on the +12V rail(s) while the Y axis is the load on the minor rails

Conducted Emissions EN55032 & CISPR 32

NEUTRAL
PHASE

Indicative Performance

Efficiency under high ambient temperature

INFO

The PSU`s efficiency under high ambient temperatures with 115V and 230V input. For this graph the results of the 10-110% load regulation table are used

5VSB Efficiency

INFO

This graph depicts the efficiency levels of the 5VSB rail with 115V and 230V input

5VSB Efficiency (ERP LOT 3/6 & CEC) 230V

Test # 5VSB DC/AC (Watts) Efficiency PF/AC Volts
1 0.045A 0.233W 49.249% 0.024
5.188V 0.475W 230.29V
2 0.09A 0.467W 58.442% 0.04
5.185V 0.801W 230.32V
3 0.55A 2.845W 77.367% 0.16
5.174V 3.68W 230.31V
4 1A 5.163W 78.683% 0.233
5.163V 6.561W 230.31V
5 1.5A 7.726W 79.772% 0.279
5.15V 9.686W 230.3V
6 3A 15.331W 79.22% 0.346
5.11V 19.352W 230.29V

Protection Features

OCP (Normal @ 29.4°C)12V: 47.29A (113.68%), 11.979V
5V: 23A (127.78%), 4.996V
3.3V: 22.8A (126.67%), 3.275V
5VSB: 4.1A (136.67%), 5.074V
OCP (Hot @ 45.2°C)12V: 46.20A (111.06%), 11.980V
5V: 20.3A (112.78%), 5.001V
3.3V: 22.2A (123.33%), 3.275V
5VSB: 4.1A (136.67%), 5.073V
OPP (Normal @ 30.6°C)662.96W (132.59%)
OPP (Hot @ 44.4°C)632.53W (126.51%)
OTP✓ (98°C @ Heat Sink)
SCP12V to Earth: ✓
5V to Earth: ✓
3.3V to Earth: ✓
5VSB to Earth: ✓
-12V to Earth: ✓
PWR_OKProper Operation
UVP (Full Load @ 180V)✓
UVP (No Damage @ 170V)✓
Conducted Emissions EN55032 & CISPR 32✓
NLO✓
Fan Failure Protection✗
SIPSurge: MOV
Inrush: NTC

Supplementary Tests (For Reference)

Typical Load Tests 230V

Test 12V 5V 3.3V 5VSB DC/AC (Watts) Efficiency Fan Speed (RPM) PSU Noise (dB[A]) Temps (In/Out) PF/AC Volts
10% 2.356A 1.985A 1.995A 0.97A 49.994 83.093% 829 21.8 40.02°C 0.641
12.052V 5.039V 3.308V 5.154V 60.167 42.1°C 230.31V
20% 5.730A 2.979A 2.996A 1.167A 99.917 87.782% 832 21.9 40.84°C 0.868
12.045V 5.036V 3.305V 5.141V 113.823 42.45°C 230.3V
30% 9.462A 3.477A 3.497A 1.365A 149.947 89.429% 839 22.1 41.12°C 0.937
12.038V 5.034V 3.302V 5.129V 167.671 44.25°C 230.29V
40% 13.199A 3.976A 4A 1.564A 199.985 90.108% 884 24 41.89°C 0.976
12.030V 5.031V 3.3V 5.116V 221.939 46.39°C 230.28V
50% 16.589A 4.973A 5.005A 1.764A 249.934 89.873% 1107 31 42.25°C 0.986
12.022V 5.028V 3.297V 5.103V 278.095 46.84°C 230.26V
60% 19.989A 5.972A 6.012A 1.965A 299.97 89.639% 1243 34.5 42.7°C 0.989
12.015V 5.024V 3.293V 5.089V 334.642 46.86°C 230.24V
70% 23.395A 6.973A 7.022A 2.167A 350.004 89.26% 1426 38.3 43.34°C 0.99
12.006V 5.02V 3.29V 5.075V 392.122 48.38°C 230.22V
80% 26.797A 7.973A 8.031A 2.271A 399.379 88.619% 1600 41.7 43.73°C 0.991
11.997V 5.016V 3.287V 5.063V 450.669 48.91°C 230.21V
90% 30.621A 8.476A 8.525A 2.375A 449.619 88.055% 1751 43.7 44.14°C 0.991
11.989V 5.014V 3.284V 5.052V 510.61 50.76°C 230.19V
100% 34.185A 8.98A 9.051A 2.984A 499.242 87.274% 1819 44.5 45.7°C 0.992
11.980V 5.011V 3.281V 5.026V 572.039 52.28°C 230.18V
110% 37.689A 9.985A 10.159A 2.99A 549.438 86.433% 1825 44.5 46.16°C 0.993
11.970V 5.007V 3.277V 5.016V 635.683 54.38°C 230.16V
CL1 0.115A 12.001A 12.048A 0A 101.283 82.784% 1276 35.5 42.76°C 0.882
12.031V 5.016V 3.295V 5.153V 122.344 47.01°C 230.26V
CL2 0.115A 17.97A 0A 0A 91.383 81.429% 933 25.8 41.68°C 0.864
12.041V 5.008V 3.306V 5.164V 112.226 45.35°C 230.26V
CL3 0.115A 0A 18.049A 0A 60.778 77.314% 846 22.2 40.7°C 0.739
12.038V 5.039V 3.291V 5.162V 78.613 44.11°C 230.27V
CL4 41.675A 0A 0A 0A 499.867 88.454% 1817 44.5 45.24°C 0.992
11.994V 5.033V 3.292V 5.126V 565.125 52.93°C 230.19V

The results above are not used in the certification process

Light Load Tests 230V

est 12V 5V 3.3V 5VSB DC/AC (Watts) Efficiency Fan Speed (RPM) PSU Noise (dB[A]) Temps (In/Out) PF/AC Volts
20W 1.231A 0.496A 0.499A 0.193A 19.996 74.176% 789 20.1 36.48°C 0.38
12.058V 5.042V 3.31V 5.181V 26.959 36.67°C 230.31V
40W 2.711A 0.694A 0.698A 0.29A 39.995 81.971% 804 20.9 37.07°C 0.553
12.055V 5.042V 3.309V 5.175V 48.791 38.45°C 230.3V
60W 4.193A 0.893A 0.898A 0.387A 59.995 85.735% 814 21.3 38.09°C 0.699
12.052V 5.041V 3.308V 5.17V 69.978 41.12°C 230.3V
80W 5.668A 1.091A 1.097A 0.484A 79.929 87.401% 821 21.6 39.11°C 0.8
12.049V 5.041V 3.307V 5.165V 91.45 41.15°C 230.3V

The results above are not used in the certification process

Ripple Measurements 230V

Test12V5V3.3V5VSBPass/Fail
10% Load15.31mV15.77mV16.55mV8.67mVPass
20% Load14.18mV15.92mV16.55mV9.19mVPass
30% Load15.41mV15.66mV16.91mV9.19mVPass
40% Load14.64mV15.35mV16.44mV9.91mVPass
50% Load15.98mV16.18mV17.74mV11.36mVPass
60% Load16.96mV16.59mV18.77mV13.21mVPass
70% Load18.15mV16.49mV18.72mV14.76mVPass
80% Load18.71mV17.41mV19.44mV15.64mVPass
90% Load19.28mV17.21mV19.81mV16.72mVPass
100% Load20.05mV17.42mV20.84mV18.45mVPass
110% Load20.63mV17.72mV20.63mV18.43mVPass
Crossload116.56mV16.76mV18.97mV9.04mVPass
Crossload215.62mV18.19mV17.43mV8.83mVPass
Crossload317.27mV16.69mV20.07mV9.39mVPass
Crossload418.10mV17.41mV18.87mV10.50mVPass

The results above are not used in the certification process

Micronics Classic II Full Change Silver 500W (#2)

Top side
Power specifications label
Fan
PSU Internals
All data and graphs included in this test report can be used by any individual on the following conditions:
› It should be mentioned that the test results are provided by Cybenetics
› The link to the original test results document should be provided in any case
Cybenetics offers the ETA and Lambda voluntary certification programs, through which the efficient and silent power supplies are promoted
CYBENETICS LTD Syrou 6, Latsia, 2231, Nicosia Cyprus
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