CYBENETICS LTD Syrou 6, Latsia, 2231, Nicosia Cyprus
Version:00
SAMA B750
Serial NumberXMBB07525112000494
Lab IDSM75003186
Certification ID263186
  • Test Result Report ID: 26PS3186A
  • Certificate Issue Date: Mar 11, 2026
115V230V
Scheme: ETA-EMI PSU
115V230V
Scheme: LAMBDA PSU
Outside Validation Scope
Aristeidis Bitziopoulos, Certification Body General Manager

General Information

DUT Information

BrandSAMA
Manufacturer (OEM)RSY
SeriesB
Model NumberBTX-750-1BA3
Serial NumberXMBB07525112000494
DUT Notes

DUT Specifications

Rated Voltage (Vrms)100-240
Rated Current (Arms)6-10
Rated Frequency (Hz)50-60
Rated Power (W)750
TypeATX12V
Dimensions (W x H x D)150 x 85 x 140mm
Cooling120mm Sleeve Bearing Fan (S1202512L)
Semi-Passive Operation✗
Cable DesignFixed cables

Power Specifications

Rail3.3V5V12V5VSB-12V
Max. PowerAmps151562.42.50.4
Watts100748.812.54.8
Total Max. Power (W)750

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 Cable Type
ATX connector 24 pin (560mm) 1 1 18-22AWG Tinned Copper
4+4 pin EPS12V (700mm+150mm) 1 2 18AWG Tinned Copper
6+2 pin PCIe (560mm) 1 1 18AWG Tinned Copper
6+2 pin PCIe (560mm+150mm) 1 2 18AWG Tinned Copper
12+4 pin PCIe (600mm) (450W) 1 1 16-24AWG Tinned Copper
SATA (500mm+150mm+150mm) / 4-pin Molex (+150mm) 2 6 / 2 18AWG Tinned Copper
Modular Cables
AC Power Cord (1350mm) - C13 coupler 1 1 18AWG -

Parts Description

General Data
Manufacturer (OEM) RSY
PCB Type Double-Sided
Primary Side
Transient Filter 4x Y caps, 2x X caps, 2x CM chokes, 1x MOV
Inrush Protection NTC Thermistor 2.5D-15 (2.5Ohm @ 25°C) & Relay
Bridge Rectifier 1x - (600V, 30A @ 100°C)
APFC MOSFETs 2x Shenzhen SI Semiconductors SIF15N65G2HP (650V, 15A @ 100°C, Rds(on): 0.09Ohm)
APFC Boost Diode LiteOn LTTH806RFW (650V, 8A @ 100°C)
Bulk Cap(s) 1x SC (420V, 330uF, @ 105°C, LT )
Main Switchers 2x Shenzhen SI Semiconductors SIF20N6502HP (600V, 20A @ 100°C, Rds(on): 0.15Ohm)

APFC Controller

Texas Instruments UCC28180 &
Sync Power SPN5003 (reducing no load consumption)

Resonant Controller Texas Instruments UCC25600
IC Driver -
Topology Primary side: APFC, Half-Bridge & LLC Resonant Converter
Secondary side: [12V] Synchronous Rectification & [Minor Rails] DC-DC converters
Secondary Side
+12V MOSFETs 4x AGMSemi AGM1405C1 (40V, 130A @ 100°C, Rds(on): 3.2mOhm)
5V & 3.3V DC-DC Converters: 4x Leinuosemi LN035N030GP (30V, 91A @ 100°C, Rds(on): 4.0mOhm)
PWM Controller(s): 2x Anpec APW7164
Filtering Capacitors

Electrolytic:
16x Suscon (3-6,000 @ 105°C)
Polymer:
2x

Supervisor IC Grenery GR8313  (OVP, UVP, OCP, PG)
Fan Controller / Micro Controller Texas Instruments LM358
Fan Model Globe Fan S1202512L (120mm, 12V, 0.18A, Fluid Dynamic Bearing Fan)
5VSB Circuit
Rectifier Shenzhen SI Semiconductors SIF4N70F
Standby PWM Controller 583J25 IC

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✓
Commission Regulation (EU) No 617/2013 Testing✓

Performance Summary

Efficiency RatingSILVER
Noise RatingStandard+
Average Efficiency (>1450 load combinations)85.760%
Average Noise Output (>1450 Load Combinations)39.14dBA
Average PF (>1450 Load Combinations)0.988
Efficiency With 10W (≤500W) or 2% (>500W) Load62.163%
Standby Power Consumption0.0585W
12V Ripple (Full Load)53.21mV
5V Ripple (Full Load)31.93mV
3.3V Ripple (Full Load)46.50mV
5VSB Ripple (Full Load)30.89mV
12V Load Regulation0.53%
5V Load Regulation0.86%
3.3V Load Regulation3.32%
5VSB Load Regulation3.27%
Inrush Current68.500A
Efficiency RatingSILVER
Noise RatingStandard+
Average Efficiency (>1450 load combinations)88.206%
Average Noise Output (>1450 Load Combinations)39.16dBA
Average PF (>1450 Load Combinations)0.951
Efficiency With 10W (≤500W) or 2% (>500W) Load63.073%
Standby Power Consumption0.1763W
12V Ripple (Full Load)53.16mV
5V Ripple (Full Load)33.11mV
3.3V Ripple (Full Load)45.83mV
5VSB Ripple (Full Load)30.59mV
12V Load Regulation0.54%
5V Load Regulation0.88%
3.3V Load Regulation3.32%
5VSB Load Regulation3.25%
Inrush Current136.500A
12V Transient Response (200%)11.22V
5V Transient Response (200%)4.943V
3.3V Transient Response (200%)3.156V
5VSB Transient Response (200%)5.047V
Hold-Up Time & Power Ok Signal19.40ms
AC Loss to PWR_OK Hold Up Time18.00ms
PWR_OK Inactive to DC Loss Delay1.40ms
PSU Timings: T1 (20% / 100%)89.0ms89.0ms
PSU Timings: T3 (20% / 100%)117.0ms117.0ms
12V OCP (29.0°C / 43.6°C)78.50A (125.80%), 12.059V72.80A (116.67%), 12.061V
5V OCP (29.0°C / 43.6°C)25.3A (168.67%), 5.135V24.7A (164.67%), 5.122V
3.3V OCP (29.0°C / 43.6°C)26.1A (174.00%), 3.303V26.4A (176.00%), 3.302V
5VSB OCP (29.0°C / 43.6°C)4.1A (164.00%), 5.005V *High Ripple (54.27mV)4A (160.00%), 5.025V
OPP (28.54°C / 42.63°C)121.84%115.25%

Hold-Up Time & Power Ok Signal

Hold-Up Time (ms)19.4
AC Loss to PWR_OK Hold Up Time (ms)18
PWR_OK Inactive to DC Loss Delay (ms)1.4

Vampire Power

Tables

Detailed Results
Average Min Limit Min Max Limit Max Result
Mains Voltage RMS: 115.09 V 115.06 V 113.85 V 115.16 V 116.15 V PASS
Mains Frequency: 60.00 Hz 59.99 Hz 59.40 Hz 60.01 Hz 60.60 Hz PASS
Mains Voltage CF: 1.416 1.415 1.340 1.417 1.490 PASS
Mains Voltage THD: 0.13 % 0.11 % N/A 0.16 % 2.00 % PASS
Real Power: 0.058 W 0.023 W N/A 0.088 W N/A N/A
Apparent Power: 7.917 W 7.896 W N/A 7.939 W N/A N/A
Power Factor: 0.010 N/A N/A N/A N/A N/A
Detailed Results
Average Min Limit Min Max Limit Max Result
Mains Voltage RMS: 230.13 V 230.12 V 227.70 V 230.17 V 232.30 V PASS
Mains Frequency: 50.00 Hz 50.00 Hz 49.50 Hz 50.00 Hz 50.50 Hz PASS
Mains Voltage CF: 1.415 1.415 1.340 1.416 1.490 PASS
Mains Voltage THD: 0.14 % 0.13 % N/A 0.16 % 2.00 % PASS
Real Power: 0.176 W 0.139 W N/A 0.222 W N/A N/A
Apparent Power: 25.670 W 25.633 W N/A 25.708 W N/A N/A
Power Factor: 0.007 N/A N/A N/A N/A N/A

Graphs

Efficiency Graph

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

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

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

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)

Test # 5VSB DC/AC (Watts) Efficiency PF/AC Volts
1 0.045A 0.233W 64.389% 0.048
5.18V 0.362W 115.04V
2 0.09A 0.466W 71.524% 0.083
5.179V 0.652W 115.05V
3 0.55A 2.841W 78.67% 0.256
5.165V 3.611W 115.03V
4 1A 5.15W 78.394% 0.305
5.15V 6.57W 115.03V
5 1.5A 7.693W 78.228% 0.331
5.128V 9.833W 115.03V
6 2.5A 12.699W 77.659% 0.358
5.08V 16.352W 115.03V
Test # 5VSB DC/AC (Watts) Efficiency PF/AC Volts
1 0.045A 0.233W 48.601% 0.019
5.181V 0.48W 229.99V
2 0.09A 0.466W 60.001% 0.031
5.18V 0.777W 229.99V
3 0.55A 2.841W 73.745% 0.133
5.165V 3.852W 229.99V
4 1A 5.149W 76.702% 0.19
5.149V 6.715W 229.99V
5 1.5A 7.668W 77.307% 0.228
5.111V 9.918W 229.99V
6 2.5A 12.654W 77.438% 0.27
5.062V 16.341W 229.99V

Protection Features

OCP (Normal @ 29.0°C)12V: 78.50A (125.80%), 12.059V
5V: 25.3A (168.67%), 5.135V
3.3V: 26.1A (174.00%), 3.303V
5VSB: 4.1A (164.00%), 5.005V *High Ripple (54.27mV)
OCP (Hot @ 43.6°C)12V: 72.80A (116.67%), 12.061V
5V: 24.7A (164.67%), 5.122V
3.3V: 26.4A (176.00%), 3.302V
5VSB: 4A (160.00%), 5.025V
OPP (Normal @ 28.5°C)913.82W (121.84%)
OPP (Hot @ 42.6°C)864.40W (115.25%)
OTP✓ (90°C @ 12V Heatsink)
SCP12V to Earth: ✓
5V to Earth: ✓
3.3V to Earth: ✓
5VSB to Earth: ✓
-12V to Earth: ✓
PWR_OKProper Operation
UVP (Full Load @ 90V)✓
UVP (No Damage @ 80V)✓
Conducted Emissions EN55032 & CISPR 32✓
NLO✓
Fan Failure Protection✗
SIPSurge: MOV
Inrush: NTC

Supplementary Tests (For Reference)

Typical Load Tests

Test 12V 5V 3.3V 5VSB DC/AC (Watts) Efficiency Fan Speed (RPM) PSU Noise (dB[A]) Temps (In/Out) PF/AC Volts
10% 4.418A 1.977A 1.967A 0.973A 75.006 81.668% 826 19.8 40.01°C 0.963
12.088V 5.059V 3.355V 5.142V 91.842 41.41°C 115.01V
20% 9.853A 2.968A 2.961A 1.17A 149.948 86.257% 828 20 40.85°C 0.984
12.082V 5.055V 3.344V 5.127V 173.838 42.47°C 114.99V
30% 15.643A 3.465A 3.464A 1.369A 224.951 87.561% 830 20.2 41.4°C 0.987
12.076V 5.05V 3.335V 5.113V 256.906 43.48°C 114.96V
40% 21.447A 3.964A 3.97A 1.569A 300.042 87.744% 1037 27.1 41.77°C 0.99
12.069V 5.045V 3.325V 5.098V 341.953 43.75°C 114.93V
50% 26.856A 4.96A 4.98A 1.771A 374.455 87.47% 1307 33.5 42.42°C 0.992
12.062V 5.04V 3.314V 5.083V 428.096 43.24°C 114.9V
60% 32.312A 5.958A 5.997A 1.974A 449.366 87.083% 1589 39.8 42.68°C 0.993
12.056V 5.036V 3.302V 5.066V 516.023 43.54°C 114.87V
70% 37.776A 6.958A 7.023A 2.179A 524.293 86.54% 1885 43.3 43.03°C 0.993
12.049V 5.031V 3.29V 5.049V 605.84 44.01°C 114.84V
80% 43.312A 7.957A 8.054A 2.284A 599.477 85.888% 2066 45.8 43.83°C 0.994
12.043V 5.026V 3.278V 5.035V 697.974 44.75°C 114.82V
90% 49.192A 8.463A 8.571A 2.39A 674.516 85.227% 2068 45.9 44.28°C 0.994
12.035V 5.021V 3.267V 5.022V 791.439 45.36°C 114.79V
100% 55.078A 8.969A 9.122A 2.496A 749.636 84.423% 2071 45.9 45.42°C 0.994
12.028V 5.016V 3.256V 5.009V 887.952 47.57°C 114.75V
110% 60.631A 9.975A 10.268A 2.499A 824.651 83.639% 2071 45.9 46.16°C 0.993
12.021V 5.012V 3.243V 5.003V 985.969 47.61°C 114.72V
CL1 0.116A 11.87A 11.949A 0A 101.29 78.669% 1108 28.4 41.65°C 0.98
12.096V 5.071V 3.323V 5.155V 128.754 43.01°C 115V
CL2 0.116A 14.734A 0A 0A 76.378 77.559% 847 20.4 40.68°C 0.968
12.094V 5.089V 3.351V 5.164V 98.478 42.45°C 115.01V
CL3 0.114A 0A 14.86A 0A 50.891 71.613% 832 20.3 41.96°C 0.947
12.095V 5.05V 3.331V 5.165V 71.065 43.62°C 115.02V
CL4 62.379A 0A 0.001A 0.001A 749.542 85.375% 2068 45.9 46.3°C 0.994
12.016V 5.009V 3.287V 5.107V 877.951 47.03°C 114.76V

The results above are not used in the certification process

Test 12V 5V 3.3V 5VSB DC/AC (Watts) Efficiency Fan Speed (RPM) PSU Noise (dB[A]) Temps (In/Out) PF/AC Volts
10% 4.418A 1.977A 1.967A 0.973A 75.005 83.478% 825 19.7 40.48°C 0.819
12.088V 5.059V 3.355V 5.142V 89.85 41.2°C 229.98V
20% 9.853A 2.968A 2.961A 1.17A 149.946 88.175% 827 19.9 40.59°C 0.915
12.082V 5.055V 3.344V 5.127V 170.054 41.43°C 229.97V
30% 15.643A 3.465A 3.464A 1.369A 224.949 89.605% 829 20.1 41.01°C 0.951
12.075V 5.05V 3.335V 5.113V 251.044 42.04°C 229.96V
40% 21.447A 3.964A 3.97A 1.569A 300.039 89.967% 1036 27 41.96°C 0.967
12.068V 5.045V 3.325V 5.098V 333.499 42.99°C 229.94V
50% 26.857A 4.961A 4.98A 1.771A 374.451 89.875% 1279 33.5 42.02°C 0.974
12.062V 5.04V 3.314V 5.083V 416.637 42.4°C 229.93V
60% 32.313A 5.959A 5.998A 1.974A 449.363 89.679% 1538 39.7 42.66°C 0.978
12.056V 5.035V 3.302V 5.066V 501.079 42.21°C 229.92V
70% 37.777A 6.958A 7.022A 2.179A 524.289 89.31% 1840 42.2 43.13°C 0.979
12.049V 5.031V 3.29V 5.049V 587.045 42.4°C 229.9V
80% 43.313A 7.957A 8.055A 2.284A 599.477 88.849% 2049 45.6 43.73°C 0.978
12.042V 5.026V 3.278V 5.035V 674.717 42.98°C 229.89V
90% 49.194A 8.462A 8.571A 2.389A 674.516 88.43% 2051 45.6 44.59°C 0.977
12.035V 5.021V 3.267V 5.022V 762.768 43.96°C 229.87V
100% 55.082A 8.969A 9.122A 2.495A 749.638 87.889% 2055 45.7 45.57°C 0.975
12.027V 5.016V 3.256V 5.01V 852.937 45.27°C 229.86V
110% 60.638A 9.975A 10.271A 2.5A 824.656 87.32% 2055 45.7 45.33°C 0.973
12.020V 5.011V 3.242V 5.001V 944.405 44.93°C 229.85V
CL1 0.116A 11.87A 11.949A 0A 101.289 80.382% 1066 27.3 40.6°C 0.874
12.095V 5.071V 3.322V 5.155V 126.01 40.95°C 229.98V
CL2 0.116A 14.736A 0A 0A 76.378 79.345% 844 20.3 41.14°C 0.834
12.093V 5.089V 3.351V 5.164V 96.261 41.75°C 229.98V
CL3 0.114A 0A 14.86A 0A 50.891 73.305% 830 20.2 40.73°C 0.784
12.094V 5.05V 3.331V 5.165V 69.424 41.46°C 229.98V
CL4 62.379A 0A 0.001A 0.001A 749.541 88.791% 2055 45.7 45.74°C 0.975
12.016V 5.009V 3.287V 5.108V 844.169 45.97°C 229.86V

The results above are not used in the certification process

Light Load Tests

Test 12V 5V 3.3V 5VSB DC/AC (Watts) Efficiency Fan Speed (RPM) PSU Noise (dB[A]) Temps (In/Out) PF/AC Volts
20W 1.228A 0.494A 0.491A 0.193A 20.007 66.74% 817 19.1 36.71°C 0.862
12.092V 5.059V 3.364V 5.173V 29.977 37.98°C 115.03V
40W 2.704A 0.692A 0.687A 0.29A 40.004 76.673% 818 19.2 37.18°C 0.922
12.090V 5.058V 3.361V 5.168V 52.174 38.43°C 115.02V
60W 4.180A 0.89A 0.884A 0.387A 60.003 80.924% 821 19.5 38.27°C 0.951
12.088V 5.057V 3.359V 5.162V 74.147 39.32°C 115.01V
80W 5.653A 1.088A 1.082A 0.485A 79.952 82.992% 823 19.6 39.74°C 0.967
12.086V 5.057V 3.356V 5.157V 96.338 40.9°C 115.01V

The results above are not used in the certification process

Test 12V 5V 3.3V 5VSB DC/AC (Watts) Efficiency Fan Speed (RPM) PSU Noise (dB[A]) Temps (In/Out) PF/AC Volts
20W 1.228A 0.494A 0.49A 0.193A 20.009 67.925% 813 18.9 36.59°C 0.595
12.092V 5.06V 3.364V 5.173V 29.463 37.4°C 229.99V
40W 2.704A 0.692A 0.687A 0.29A 40.006 78.392% 816 19.1 37.31°C 0.73
12.090V 5.059V 3.361V 5.168V 51.033 38.02°C 229.99V
60W 4.180A 0.89A 0.884A 0.387A 60.003 82.624% 819 19.3 38.42°C 0.785
12.088V 5.057V 3.359V 5.163V 72.622 39.4°C 229.98V
80W 5.653A 1.088A 1.082A 0.485A 79.953 84.783% 822 19.6 39.33°C 0.829
12.086V 5.057V 3.356V 5.157V 94.302 40.14°C 229.98V

The results above are not used in the certification process

Ripple Measurements

Test12V5V3.3V5VSBPass/Fail
10% Load26.81mV21.15mV30.85mV25.27mVPass
20% Load27.16mV22.99mV28.19mV25.37mVPass
30% Load31.16mV22.43mV29.06mV26.14mVPass
40% Load34.17mV23.45mV31.71mV26.65mVPass
50% Load36.99mV25.80mV34.07mV28.08mVPass
60% Load40.62mV27.28mV36.93mV28.95mVPass
70% Load44.20mV28.56mV38.21mV30.85mVPass
80% Load47.07mV29.58mV42.97mV29.92mVPass
90% Load50.96mV30.45mV43.38mV30.43mVPass
100% Load53.21mV31.93mV46.50mV30.89mVPass
110% Load59.71mV31.52mV46.96mV30.95mVPass
Crossload131.62mV21.77mV32.54mV22.61mVPass
Crossload228.75mV21.66mV25.57mV22.15mVPass
Crossload330.24mV20.69mV34.17mV21.02mVPass
Crossload456.12mV35.76mV42.00mV28.03mVPass

The results above are not used in the certification process

Test12V5V3.3V5VSBPass/Fail
10% Load26.30mV22.53mV27.27mV25.27mVPass
20% Load27.22mV23.15mV28.34mV25.73mVPass
30% Load30.34mV23.09mV30.03mV26.09mVPass
40% Load33.00mV24.01mV32.02mV27.11mVPass
50% Load37.35mV26.46mV34.89mV28.49mVPass
60% Load40.93mV29.07mV37.14mV29.77mVPass
70% Load43.02mV29.58mV39.44mV29.72mVPass
80% Load47.63mV30.81mV42.82mV31.36mVPass
90% Load49.17mV32.44mV43.94mV30.64mVPass
100% Load53.16mV33.11mV45.83mV30.59mVPass
110% Load62.77mV33.41mV48.14mV31.87mVPass
Crossload133.05mV21.66mV32.99mV22.40mVPass
Crossload229.26mV22.79mV27.37mV22.61mVPass
Crossload330.70mV21.81mV33.25mV20.62mVPass
Crossload455.56mV33.82mV45.48mV28.29mVPass

The results above are not used in the certification process

SAMA B750

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
www.cybenetics.com - info@cybenetics.com