300Watts AC-DC 3x5 Inch ITE Open Frame Power Supply
TES300A Series
Features a 3x5" open frame design with a low profile of just 1.2 inches, perfect for space-constrained applications
Delivers up to 300W with force cooling and 220W under convection cooling for versatile system requirements
Achieves an efficiency up to 94% and a no-load input power below 0.5W, significantly reducing standby consumption
Fully certified with EMI EN55032 and ITE safety approvals UL/IEC 60950-1 & UL/IEC/EN 62368-1
Includes a 12V fan output, optional 5V standby output, and remote on/off control
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Model information |
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Model |
Output Voltage |
Main Output (Current, Watt) |
12V Fan Output |
5V standby output |
Efficiency (Convection) |
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Convection |
Force-Cooled With 10CFM |
Convection |
Force-Cooled |
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TES300A12 |
12Vdc |
16.67A |
200W |
25A |
300W |
0.5A |
NA |
94% |
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TES300A24 |
24Vdc |
9.17A |
220W |
12.5A |
300W |
0.5A |
95% |
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TES300A48 |
48Vdc |
4.59A |
220W |
6.25A |
300W |
0.5A |
95% |
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TES300A12S |
12Vdc |
16.67A |
200W |
25A |
300W |
0.5A |
1A |
2A |
94% |
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TES300A24S |
24Vdc |
9.17A |
220W |
12.5A |
300W |
0.5A |
1A |
2A |
95% |
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TES300A48S |
48Vdc |
4.59A |
220W |
6.25A |
300W |
0.5A |
1A |
2A |
95% |
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INPUT |
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Characteristic |
Conditions |
Min |
Typ |
Max |
Units |
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Input Voltage |
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85 |
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264 |
VAC |
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Input Current |
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5 |
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A |
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Input Frequency |
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47 |
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63 |
Hz |
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Inrush Current |
At 230VAC, cold start@25degC |
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100 |
A |
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No Load Power |
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0.5 |
W |
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Power Factor |
At 230VAC, full load |
0.9 |
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OUTPUT |
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Characteristic |
Conditions |
Min |
Typ |
Max |
Units |
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Output Voltage |
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12/24/48 |
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VDC |
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Hold Up time |
At 115VAC |
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10 |
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ms |
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Line Regulation |
90VAC to 264VAC at full load |
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±0.5 |
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% |
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Load Regulation |
No load to full load |
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±1 |
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% |
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Transient Response |
Deviation with a 50%-75%-50% load change 1A/μs, recovering to <1% within 500μs |
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4 |
% |
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Ripple and Noise |
20 MHz bandwidth and 10 µF electrolytic capacitor in parallel with 0.1 µF ceramic capacitor. |
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1 |
% |
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STANDBY OUTPUT |
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Characteristic |
Conditions |
Min |
Typ |
Max |
Units |
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Line Regulation |
90VAC to 264VAC at full load |
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±1 |
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% |
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Load Regulation |
No load to full load |
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±1 |
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% |
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Ripple and Noise |
20 MHz bandwidth and 10 µF electrolytic capacitor in parallel with 0.1 µF ceramic capacitor. |
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1 |
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% |
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Remote On/Off |
Connect pin 3 of CN4 to pin 1 to turn main output off. Connect to pin 2 or leave open to turn main output on. |
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PROTECTIONS |
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Characteristic |
Conditions |
Min |
Typ |
Max |
Units |
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OverVoltage Protection |
Latch |
110 |
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140 |
% |
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OverCurrent Protection |
based on 300W, Hiccup Mode |
120 |
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160 |
% |
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Short Circuit Protection |
Hiccup Mode, auto recovery |
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Over-Temp Protection |
Hiccup Mode, auto recovery |
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Note: All specifications are typical at 25℃ unless otherwise noted. |
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ENVIRONMENTAL |
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Characteristic |
Conditions |
Min |
Typ |
Max |
Units |
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Operating Temperature |
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-40 |
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70 |
°C |
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Storage Temperature |
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-40 |
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85 |
°C |
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Cooling |
Forced Cool with 10 CFM |
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Altitude |
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5000 |
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m |
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Humidity |
non-condensing |
5 |
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95 |
%RH |
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Vibration |
IEC68-2-6, 10-500 Hz, 2 g 10 mins /sweep. 60 mins for each of 3 axes |
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Shock |
IEC68-2-27, 30 g, 11 ms half sine, 3 times in each of 6 axes |
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SAFETY |
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Standard |
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UL/IEC/EN 62368-1 UL/IEC/EN 60950-1 |
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EMC |
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Characteristic |
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Standard |
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Conducted Emissions |
EN55032:2012 +AC:2013 (CISPR 32:2012), Class B |
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Radiated Emissions |
EN55032:2012 +AC:2013 (CISPR 32:2012), Class A; Add Ferrite core in input and output side for Class B |
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Harmonic Current emissions |
EN61000-3-2:2014, Class A |
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Voltage fluctuations & flicker |
EN61000-3-3:2013 |
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Electrostatic discharge |
IEC 61000-4-2:2008, Criteria A |
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RS(Radiated) |
IEC 61000-4-3:2010, Criteria A |
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Electrical fast transient/burst |
IEC 61000-4-4:2012, Criteria A |
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Surge |
IEC 61000-4-5:2014, Criteria A |
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Conducted Immunity |
IEC 61000-4-6:2013 |
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Magnetic Field |
IEC 61000-4-8:2009, Criteria A |
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Dip, >95% reduction |
IEC 61000-4-11:2004, Criteria A |
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Dip, 30% reduction |
IEC 61000-4-11:2004, Criteria A |
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Interruptions, >95% reduction |
IEC 61000-4-11:2004, Criteria C* |
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Note*: The EUT was stopped operating during the test, but it’s self-recoverable after test |
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Derating
Curves
Derating Curve vs. INPUT VOLTAGE
Forced cool with 10 CFM
Convection cool-TES30012 Convection cool-TES30024/48
Temperature Derating Curves
Forced cool with 10 CFM
Convection cool-TES30012 Convection cool-TES30024/48
Efficiency (against input voltage)
Mechanical
Drawing
TES300AXXS
TES300AXX
Note1: Mounting
holes marked with
must be connected to safety earth.
Note2: CN1-4 all mate with JST housing.
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Model information |
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||||||||
|
Model |
Output Voltage |
Main Output (Current, Watt) |
12V Fan Output |
5V standby output |
Efficiency (Convection) |
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Convection |
Force-Cooled With 10CFM |
Convection |
Force-Cooled |
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TES300A12 |
12Vdc |
16.67A |
200W |
25A |
300W |
0.5A |
NA |
94% |
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TES300A24 |
24Vdc |
9.17A |
220W |
12.5A |
300W |
0.5A |
95% |
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TES300A48 |
48Vdc |
4.59A |
220W |
6.25A |
300W |
0.5A |
95% |
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TES300A12S |
12Vdc |
16.67A |
200W |
25A |
300W |
0.5A |
1A |
2A |
94% |
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TES300A24S |
24Vdc |
9.17A |
220W |
12.5A |
300W |
0.5A |
1A |
2A |
95% |
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TES300A48S |
48Vdc |
4.59A |
220W |
6.25A |
300W |
0.5A |
1A |
2A |
95% |
The open frame power supply TES300A Series features a compact 3×5" low‑profile design (only 1.2" height), ideal for space‑constrained systems. It delivers up to 300W under force cooling and 220W under convection, offering excellent thermal flexibility. With an efficiency of up to 95% and no‑load input power below 0.5W, this open frame power supply significantly reduces standby energy consumption while maintaining performance. Safety‑certified (UL/IEC 60950‑1 & UL/IEC/EN 62368‑1) with EMI compliance EN55032, it includes options like 12V fan output, optional 5V standby, and remote on/off control. Engineered for reliability, the open frame power supply includes protections such as overvoltage, overcurrent, short‑circuit, over‑temperature, and wide operating temperature range (−40°C to +70°C), making it suitable for industrial, telecom, test, and IPC applications.
TES300A Series Open Frame Power Supply | 300W High Efficiency, Compact Design
The TES300A Series open frame AC-DC power supply features a compact 3×5 inch low-profile design (1.2 height), ideal for space-constrained industrial and embedded systems. It delivers up to 300W with forced air cooling and 220W under natural convection, offering excellent thermal flexibility.
With high efficiency up to 94% and no-load input power below 0.5W, the TES300A Series helps reduce energy consumption and optimize system performance.
Key features include:
12V fan output
Optional 5V standby output
Remote on/off control
Wide operating temperature range
Certified to UL/IEC 60950-1, UL/IEC/EN 62368-1, and EMI EN55032, this power supply ensures global safety compliance and EMC performance.
Ideal for industrial automation, test and measurement equipment, IPC, and telecom systems, the TES300A Series is a reliable and energy-efficient solution for demanding applications.
