Non-isolated DC/DC converter

step-downhigh-power3:1 input voltage range

Overview
This series of non-isolated buck DC-DC converters converts high-voltage DC (DC60/72V) to a regulated DC12V output across multiple current ratings (1A–50A). Designed for industrial and vehicle power applications, input operating range is 30V–90V. Multiple package sizes and power options cover light to high-current needs.

Features

• Synchronous rectification for improved conversion performance
• Internal low-ESR capacitor filter, high temperature tolerance
• Organic silicone potting/packaging
• Integrated protection: over-temperature and over-current
• Shock, drop, moisture and dust resistant design
• High efficiency: feature list up to 96%; typical table values ~90%
• Non-isolated input-output topology
• Ingress protection: IP67 (waterproof)

Attention / Installation Notes

• Install according to label and wiring diagram; ensure correct polarity. Reversed polarity can damage the module and connected components.
• Do not interchange input and output connections; incorrect wiring may cause failure or fire.
• Ensure load power does not exceed the converter's rated maximum continuous output.

60V/72V to 12V (1A-20A)
Product name: 60V/72V DC to 12V DC Converter (1A–20A variants). Sizes / weights by rating: 1A–5A: 46×32×18 mm / 0.053 kg; 8A–10A: 74×74×32 mm / 0.26 kg; 15A–20A: 100×80×38 mm / 0.5 kg.

Key electrical data

• Output current examples: 1A, 3A, 5A, 8A, 10A, 15A, 20A
• Output power examples: 12W, 36W, 60W, 96W, 120W, 180W, 240W
• Input voltage: DC60V/72V (operating range 30V–90V)
• Output voltage: DC12V ±0.25V
• Transfer efficiency: typical 90% (feature list up to 96%)
• Over-temperature protection threshold: 150℃
• Operating temperature: -20℃ to 85℃
• Ingress protection: IP67

60V/72V to 12V (30A-50A)
Product name: 60V/72V DC to 12V DC Converter (30A–50A variants). Sizes / weights: 30A: 100×113×35 mm / 0.7 kg; 40A: 160×113×35 mm / 0.7 kg; 50A: 150×130×50 mm / 1.3 kg.

Key electrical data

• Output current options: 30A, 40A, 50A
• Output power: 360W (30A), 480W (40A), 600W (50A)
• Input voltage: DC60V/72V (operating range 30V–90V)
• Output voltage: DC12V ±0.25V
• Transfer efficiency: typical 90%
• Over-temperature protection threshold: 150℃
• Operating temperature: -20℃ to 85℃
• Ingress protection: IP67

Technical specifications

• Input voltage: DC60V/72V (operating range 30V–90V)
• Nominal output voltage: DC12V ±0.25V
• Output current range: 1A–50A (multiple model variants)
• Output power range: ~12W up to 600W depending on model
• Transfer efficiency: typically ~90% (up to 96% in selected models)
• Over-temperature protection: 150℃
• Operating temperature: -20℃ to 85℃
• Ingress protection: IP67
• Topology: non-isolated buck converter
• Protections: overcurrent, over-temperature; robust silicone packaging
• Certifications: CE, FCC, RoHS