Skip to main content
AC-DC On-board Converter

LS-K (1-5W) – 1-5W AC-DC On-board Converter

AC-DC On-board Converter series, 5 Models. compact low-profile design. CE certified, CB certified, UL certified, CQC certified, RoHS certified, REACH certified.

LS-K (1-5W) AC-DC On-board Converter

Key Features

  • Ultra-compact SIP package
  • 1-5W output power
  • 4000VAC isolation voltage
  • Universal AC input
  • Operating temperature -40°C to +80°C
  • Meet IEC/EN62368 standards

LS-K (1-5W) Model Specifications

ModelPowerInputOutputCurrentEfficiencyIsolation
LS01-K3B05SS1W85-305 VAC / 70-430 VDC5 VDC200mA72%SIP
LS03-K3B12SS3W85-305 VAC / 70-430 VDC12 VDC250mA75%SIP
LS05-K3B12SS4W85-305 VAC / 70-430 VDC12 VDC330mA78%SIP
LS05-K3B15SS5W85-305 VAC / 70-430 VDC15 VDC330mA78%SIP
LS05-K3B18SS5W85-305 VAC / 70-430 VDC18 VDC280mA78%SIP

Applications

  • Embedded systems and IoT devices
  • Smart home and building controllers
  • Metering and monitoring equipment
  • Low-power standby power supplies

Product Overview

The LS-K (1-5W) is a professional-grade ac-dc on-board converter designed for demanding industrial environments. With a power range of 1-5W, this series offers 5 models with various output voltages to meet diverse application requirements. Key advantages include compact low-profile design, making it suitable for industrial automation, control systems, and embedded applications. All models are ce certified, cb certified, ul certified, cqc certified, rohs certified, reach certified certified, ensuring compliance with international safety and EMC standards. ModulesLink manufactures each unit under strict quality control with 100% load testing and burn-in procedures.

Technical Details

The LS-K series features ac-dc on-board converter architecture with input range of 85-305 VAC / 70-430 VDC, providing output options of 5 VDC, 12 VDC, 15 VDC, 18 VDC at up to 72% efficiency. The robust design incorporates comprehensive protection circuits including overcurrent protection (OCP), overvoltage protection (OVP), overtemperature protection (OTP), and short-circuit protection. The high isolation voltage ensures safe operation in noisy industrial environments, while the wide operating temperature range guarantees reliable performance in harsh conditions. Each model undergoes 100% electrical testing and aging tests before shipment.

Quality & Reliability

ModulesLink implements a rigorous quality management system certified to ISO 9001 standards. The LS-K series carries CE certified, CB certified, UL certified, CQC certified, RoHS certified, REACH certified certifications, demonstrating compliance with IEC/EN/UL safety standards and RoHS/REACH environmental regulations. Every power supply is subjected to 100% load testing, hi-pot testing, and thermal cycling before leaving the factory. The mean time between failures (MTBF) exceeds 500,000 hours under nominal conditions at 25°C ambient temperature. ModulesLink offers a 3-year warranty on all industrial-grade power supplies, reflecting confidence in product reliability.

Ordering Information

To order LS-K (1-5W) models, select the appropriate output voltage and power rating from the model list above. Each model number follows a standardized naming convention indicating output parameters. For OEM/ODM inquiries, custom output voltages, modified mechanical dimensions, or special input ranges can be accommodated with minimum order quantities (MOQ). Contact ModulesLink sales team through the Request Quote button for pricing, lead time, and technical support. Samples are available for qualified customers to evaluate before volume orders.