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Mean Well LRS-100-5 Power Supply 100W 5V 18A

4.7 (17 reviews)

most economical modelultra compact and 1U low profilewithstand 5G vibration and 70°C operation

SKU LRS-100-5

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LRS-100-5

LRS-35-5 35W 5V Low stock

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LRS-600-5 600W 5V Low stock

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Product variants

In stock

Overview

LRS-100-5 is the 5V output model of this series: rated current 18A, rated power 90W, typical efficiency 86%.

LRS-100 series is a 100W single-output enclosed type power supply with 30mm of low profile design. Adopting the full range 85~264VAC input, the entire series provides an output voltage line of 3.3V, 5V, 12V, 15V, 24V, 36V and 48V. In addition to the high efficiency up to 91%, the design of metallic mesh case enhances the heat dissipation of LRS-100 that the whole series operates from -30℃ through 70℃ under air convection without a fan. Delivering an extremely low no load power consumption (less than 0.3W), it allows the end system to easily meet the worldwide energy requirement. LRS-100 has the complete protection functions and 5G anti-vibration capability; it is complied with the international safety regulations such as TUV BS EN/EN2368-1, BS EN/EN60335-1,BS EN/EN61558-1/-2-16, UL62368-1 and GB 4943.1. LRS-100 series serves as a high price-performance power supply solution for various industrial applications.

Features

Universal AC input / Full range
Withstand 300VAC surge input for 5 second
Protections: Short circuit / Overload / Over voltage
Cooling by free air convection
Miniature size and 1U low profile
Compliance to IEC/BS EN/EN 60335-1(PD3) and IEC/BS EN/EN61558-1, 2-16 for household applications
Operating altitude up to 5000 meters (Note.7)
Withstand 5G vibration test
LED indicator for power on
No load power consumption<0.3W
Over voltage category Ⅲ
100% full load burn-in test
High operating temperature up to 70℃
High efficiency, long life and high reliability
3 years warranty

Specifications

LRS-100-5Specifications from the official datasheet (2025-04-07 edition)

OUTPUT

DC VOLTAGE: 5V
RATED CURRENT: 18A
CURRENT RANGE: 0 ~ 18A
RATED POWER: 90W
RIPPLE & NOISE (max.)^Note.2: 100mVp-p
VOLTAGE ADJ. RANGE: 4.5 ~ 5.5V
VOLTAGE TOLERANCE^Note.3: ±2.0%
LINE REGULATION^Note.4: ±0.5%
LOAD REGULATION^Note.5: ±1.0%
SETUP, RISE TIME: 500ms, 30ms/230VAC 500ms,30ms/115VAC at full load
HOLD UP TIME (Typ.): 55ms/230VAC 10ms/115VAC at full load

INPUT

VOLTAGE RANGE: 85 ~ 264VAC 120 ~ 373VDC (Withstand 300VAC surge for 5sec. Without damage)
FREQUENCY RANGE: 47 ~ 63Hz
EFFICIENCY (Typ.): 86%
AC CURRENT (Typ.): 1.9A/115VAC 1.2A/230VAC
INRUSH CURRENT (Typ.): COLD START 50A/230VAC
LEAKAGE CURRENT: <0.75mA / 240VAC

PROTECTION

OVER LOAD: 110 ~ 150% rated output power Protection type : Hiccup mode, recovers automatically after fault condition is removed
OVER VOLTAGE: 5.75 ~ 6.75V Protection type : Shut down o/p voltage, re-power on to recover

ENVIRONMENT

WORKING TEMP.: -30 ~ +70℃ (Refer to "Derating Curve")
WORKING HUMIDITY: 20 ~ 90% RH non-condensing
STORAGE TEMP., HUMIDITY: -40 ~ +85℃, 10 ~ 95% RH non-condensing
TEMP. COEFFICIENT: ±0.03%/℃ (0 ~ 50℃)
VIBRATION: 10 ~ 500Hz, 5G 10min./1cycle, 60min. each along X, Y, Z axes
OVER VOLTAGE CATEGORY: Ⅲ; Compliance to BS EN/EN61558, BS EN/EN50178, BS EN/EN60664-1, BS EN/EN62477-1; altitude up to 2000 meters

SAFETY & EMC (Note 8)

SAFETY STANDARDS: UL 62368-1, TUV BS EN/EN62368-1, BS EN/EN60335-1, BS EN/EN61558-1/-2-16,GB 4943.1, BSMI CNS15598-1, EAC TP TC 004,S/NZS62368.1(by CB),KC K60950-1(for LRS-100-12/24 only), BIS IS13252(Part1): 2010/IEC 60950-1: 2005(NOTE 9) approved
WITHSTAND VOLTAGE: I/P-O/P:4KVAC I/P-FG:2KVAC O/P-FG:1.25KVAC
ISOLATION RESISTANCE: I/P-O/P, I/P-FG, O/P-FG:100M Ohms / 500VDC / 25℃/ 70% RH
EMC EMISSION: Compliance to BS EN/EN55032 (CISPR32) Class B, BS EN/EN55014, BS EN/EN61000-3-2,-3, GB17625.1,GB/T 9254.1, BSMI CNS15936, EAC TP TC 020,KC KN32,KN35(for LRS-100-12/24 only)
EMC IMMUNITY: Compliance to BS EN/EN61000-4-2,3,4,5,6,8,11, BS EN/EN61000-6-2 (BS EN/EN50082-2),BS EN/EN55035, heavy industry level, EAC TP TC 020,KC KN32,KN35(for LRS-100-12/24 only)

OTHERS

MTBF: 3348.9K hrs min. Telcordia SR-332 (Bellcore) ; 677.4Khrs min. MIL-HDBK-217F (25℃)
DIMENSION: 129*97*30mm (L*W*H)
PACKING: 0.33Kg ; 40pcs/14.2Kg/0.87CUFT

Test conditions and notes9

1. All parameters NOT specially mentioned are measured at 230VAC input, rated load and 25℃ of ambient temperature.
2. Ripple & noise are measured at 20MHz of bandwidth by using a 12" twisted pair-wire terminated with a 0.1uf & 47uf parallel capacitor.
3. Tolerance : includes set up tolerance, line regulation and load regulation.
4. Line regulation is measured from low line to high line at rated load.
5. Load regulation is measured from 0% to 100% rated load.
6. Length of set up time is measured at cold first start. Turning ON/OFF the power supply very quickly may lead to increase of the set up time.
7. The ambient temperature derating of 5℃/1000m is needed for operating altitude greater than 2000m(6500ft).
8. The power supply is considered a component which will be installed into a final equipment. All the EMC tests are been executed by mounting the unit on a 360mm*360mm metal plate with 1mm of thickness. The final equipment must be re-confirmed that it still meets EMC directives. For guidance on how to perform these EMC tests, please refer to “EMI testing of component power supplies.” (as available on https://www.meanwell.com//Upload/PDF/EMI_statement_en.pdf)
9. Some model may not have the BIS logo, please contact your MEAN WELL sales for more information.

Technical drawings

LRS-100-5 Derating Curve — Derating Curve

LRS-100-5 Mechanical Specification — Mechanical Specification

Typical applications

Industrial automation machinery
Industrial control system
Mechanical and electrical equipment
Electronic instruments, equipments or apparatus
Household applications

Downloads

Certificates6

UL Certificate (LRS-100)(EN) PDF Download

EMC Certificate (LRS-100)(EN) PDF Download

CB(60335) Certificate (LRS-100)(EN) PDF Download

CB(60950) Certificate (LRS-100)(EN) PDF Download

TUV(60335) Certificate (LRS-100)(EN) PDF Download

TUV(60950) Certificate (LRS-100)(EN) PDF Download

Test reports1

Test Report (LRS-100-5)(EN) PDF Download

Catalogues2

Mean Well Catalog (Industrial) PDF Download

Mean Well Sign Panel Catalog PDF Download

FAQ

What applications is the LRS-100-5 used for?

The LRS-100-5 provides 5V DC at 18A, making it suitable for microcontroller boards, single-board computers, USB-standard logic circuits, and embedded systems requiring a 5V primary supply. Its 90W output can drive multiple 5V logic loads simultaneously within a compact enclosure.

Is the LRS-100-5 suitable for use in high-temperature environments?

The LRS-100-5 is rated for operation from -30°C to +70°C, but its output must be derated at higher ambient temperatures according to the datasheet's derating curve, so full load is not available all the way to 70°C. The sheet lists no IP rating and treats the unit as a component to be installed inside final equipment, so it is not intended for outdoor or wet-location use.

How does the LRS-100-5 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-100-3.3: 66W, 3.3V, 20A; LRS-100-36: 100.8W, 36V, 2.8A; LRS-100-48: 110.4W, 48V, 2.3A. The LRS-100-5 itself is rated at 90W, 5V, 18A. All share the same universal input range of 85-264VAC and operating temperature of -30°C to +70°C (with derating).

Does the LRS-100-5 meet any vibration resistance requirements?

Yes, the LRS-100-5 is tested to 10-500Hz, 5G vibration (10 min per cycle, 60 min along each of the X, Y and Z axes), making it appropriate for equipment installed in environments subject to mechanical vibration such as factory floors. It operates from -30°C to +70°C, with output derating at higher ambient temperatures per the derating curve.

How do I determine if the LRS-100-5 has enough headroom for my load?

The LRS-100-5 is rated at 90W output. Best practice is to keep continuous load at or below 80% of rated capacity, which for this unit is approximately 72W sustained draw. The 5V output at 18A gives the total current budget across all loads sharing this supply.

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Model	Power	Voltage	Current
Mean Well LRS-100-24 Power Supply 100W 24V 4.5A	108W	24V	4.5A	View
Mean Well LRS-100-12 Power Supply 100W 12V	102W	12V	8.5A	View

Customer reviews

4.7 Reviews verified for authenticity

5 ★ (13)

4 ★ (3)

3 ★ (1)

2 ★ (0)

1 ★ (0)

Reviewed by 17 customers across the LRS series

Cheap and reliable enclosed PSU
By Ravi N.|2026-06-14✓ Verified Buyer
Model: LRS-50-24Quantity: 10
LRS-50-24 powers our sensor rack. Great price, no fuss.
Good budget option
By Kelly B.|2026-05-20✓ Verified Buyer
Model: LRS-100-24Quantity: 4
Runs a bit warm in a sealed box — add airflow. Otherwise solid.
Standardised on these
By FitOut Ltd|2026-04-25
Model: LRS-350-24Quantity: 25
Use LRS across all our retail fit-outs now.

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