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HLK-150MQ110S24A 150W DC/DC Module Targets Railway Power Systems

Shenzhen Hi-Link Electronic has introduced the HLK-150MQ110S24A, a compact 150W quarter-brick DC/DC power module designed for railway and transportation systems. Distributed by Rajguru Electronics, the module delivers a regulated 24 V output from a wide 43–160 VDC input and is specified for EN50155 railway applications.

Key Specifications

• Input voltage range: 43–160 VDC (4:1), rated 110 VDC
• Output: 24 VDC / up to 6.25 A (150 W)
• Efficiency: up to 91% at full load
• Switching frequency: 250 kHz typical
• Transient recovery time: 200 µs typical
• Temperature drift: ±0.02 %/°C maximum
• MTBF: 150,000 hours
• Operating temperature: –40°C to +105°C

Isolation & Protection

• Input-to-output isolation: up to 3000 VDC
• Input-to-case isolation: 2100 VDC
• Insulation resistance: ≥ 100 MΩ
• Output overvoltage protection threshold: 125–140%
• Protections: input undervoltage, output overcurrent, overvoltage, overtemperature, short-circuit (self-recovering hiccup mode)

Additional functions include remote on/off control, output voltage trimming and remote compensation. No minimum load is required.

Mechanical & Cooling

• Form factor: quarter-brick
• Weight: 72 g (standard), 125 g (with radiator)
• Optional aluminium radiator: 61 × 39 × 15 mm
• Cooling: conduction or forced-air

Target Applications

• Railway control electronics and onboard systems
• Transportation power subsystems requiring stable 24 V
• Industrial equipment with wide DC bus variation

With its wide input range, high isolation, comprehensive protection and compact size, the HLK-150MQ110S24A is well suited for demanding railway environments where reliability and electrical safety are critical.

Source: Electronics For You