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Mean Well LRS-100-3.3 Power Supply 100W 3.3V
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Mean Well LRS-100-3.3 Power Supply 100W 3.3V
Description
Description
No load power consumption <0.2W for 35W/50W; <0.3W for 75W/100WUniversal AC input / Full rangeWithstand 300VAC surge input for 5 secondsUltra compact and 1U low profileWithstand 5G vibration testHigh operating temperature up to 70oCProtections: Short circuit / Overload / Over voltageCooling by free air convectionCompliance to IEC/EN60335-1(PD3) and IEC/EN61558-1,-2-16 for household appliancesOperating altitude up to 5000 metersHigh efficiency, long life and high reliabilityLED indicator for power onLow cost3 years warranty
Key Features
- ✓85~264VAC; 120~370VDC
- ✓Cold start, 50A at 230VAC
- ✓±10% by potentiometer
- ✓110%~150%
- ✓Hiccup mode, auto-recovery
- ✓115%~135% rated output voltage
- ✓Shut down o/p voltage, re-power on to recover
- ✓3.75kVAC, I/P-FG: 2kVAC, O/P-FG: 1.25kVAC, 1 minute
- ✓-30~+70°C (refer to output derating curve)
- ✓UL60950-1, IEC/EN60950-1, IEC/EN61558-1, EN61558-2-16, IEC/EN60335-1, CCC GB4943 approved
- ✓EN55022 class B, EN55014, EN61000-3-2, 3, EN61000-4,2,3,4,5,6,8,11, GB9254
- ✓7P/9.5mm pitch terminal block
- ✓129x 97x 30
Specifications
Specifications
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BrandMean Well
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SeriesLRS Series
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Power Rating66 Watt
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Output Voltage3.3 Volt
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Rated Current20 Ampere
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Input Voltage85V~264V
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No of Output1
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Standards MetBSMI,CB,CCC,CE,EAC,RCM,TUV,UL
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Operation ModeConstant Voltage
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Operating Temperature-30°C~70°C
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Warranty3 Year
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Length5.08 in
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Width3.82 in
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Height1.18 in
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Weight0.73 lb
File Downloads
File Downloads
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Payment & Security
Payment methods
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Frequently Asked Questions
What systems is the LRS-100-3.3 appropriate for?
The LRS-100-3.3 outputs 3.3V DC at 20A, the standard supply voltage for FPGAs, ARM-based microcontrollers, DDR memory modules, and modern embedded SoC platforms. Its 66W output can sustain high-current 3.3V digital logic loads without derating under normal operating conditions.
Is the LRS-100-3.3 suitable for use in high-temperature environments?
The LRS-100-3.3 is rated for operation from -30°C to +70°C, allowing continuous use in demanding industrial environments without forced-air cooling up to the rated temperature ceiling. The unit is designed for indoor installation in ventilated enclosures; it does not carry an IP rating for outdoor or wet-location use.
How does the LRS-100-3.3 compare to other voltage options in the LRS-100 series?
The LRS-100 series offers multiple output voltages to match different system requirements. The available variants (with rated power, voltage, and current) are: LRS-100-12: 102W, 12V, 8.5A; LRS-100-15: 105W, 15V, 7A; LRS-100-24: 108W, 24V, 4.5A; LRS-100-36: 75.6W, 36V, 2.8A; LRS-100-48: 110.4W, 48V, 2.3A; LRS-100-5: 80W, 5V, 18A. The LRS-100-3.3 itself is rated at 66W, 3.3V, 20A. All share the same universal input range of 85-264VAC and operating temperature of -30°C to +70°C.
Does the LRS-100-3.3 meet any vibration resistance requirements?
Yes, the LRS-100-3.3 is rated to withstand 5G vibration, making it appropriate for equipment installed in environments subject to mechanical vibration such as factory floors or mobile industrial platforms. It also operates continuously up to 70°C, covering most harsh industrial ambient conditions.
How do I determine if the LRS-100-3.3 has enough headroom for my load?
The LRS-100-3.3 is rated at 66W output. Best practice is to keep continuous load at or below 80% of rated capacity, which for this unit is approximately 52.8W sustained draw. The 3.3V output at 20A gives the total current budget across all loads sharing this supply.
Other LRS-100 Models
4 other models| Model | Power | Voltage | Current | IP Rating | Price | |
|---|---|---|---|---|---|---|
| Mean Well LRS-100-24 Power Supply 100W 24V | 108W | 24V | 4.5A | Indoor | $17.15 | View |
| Mean Well LRS-100-12 Power Supply 100W 12V | 102W | 12V | 8.5A | — | $16.50 | View |
| Mean Well LRS-100-5 Power Supply 100W 5V | 80W | 5V | 18A | Indoor | $18.08 | View |
| Mean Well LRS-100-15 Power Supply 100W 15V | 105W | 15V | 7A | Indoor | $18.12 | View |
