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.
HLK-150MQ110S24A 150W quarter-brick DC/DC module for railway power systems
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