Specifications
URB4812YMD-30WR3 is a 30W single-output isolated regulated DC-DC converter module manufactured by MORNSUN, belonging to the URB_YMD-30WR3 industrial compact DIP series for 48V bus industrial, communication and power equipment.
Suffix Breakdown
- URB: Single-channel isolated regulated DC-DC series
- 48: Nominal 48V input, 4:1 ultra-wide input range (18~75VDC)
- 12: Single 12VDC regulated output
- YMD: 1×1 inch standard DIP through-hole compact package
- 30W: Rated full output power 30 Watts
- R3: New generation low standby loss, high efficiency upgraded revision
- Shipment suffix: -TR for tape-and-reel automated SMT assembly
URB YMD-30WR3 Module Appearance
1. Core Electrical Specifications
Input Parameters
- Nominal Vin: 48VDC, wide operating range: 18 ~ 75VDC (4:1 ratio)
- Input under-voltage lockout protection threshold
- Internal switching frequency: Fixed high-frequency topology for low ripple
Output Parameters
- Nominal Vout: 12VDC (fully regulated)
- Max output current: 2.5A
- Rated power: 30W
- Voltage tolerance: ±1%
- Line regulation: ±0.2%; Load regulation: ±0.5%
- Full-load efficiency: Up to 88% @ nominal input and full load
- Output ripple & noise (20MHz bandwidth): ≤120mVp-p
- Maximum allowable capacitive load: 2000μF
Isolation Performance
- Input-output isolation withstand voltage: 1500VDC / 1min
- Insulation resistance ≥ 1000MΩ @ 500VDC, low leakage current
2. Complete Multi-Layer Protection Circuitry
- Input under-voltage protection (UVLO): Shuts down module to avoid unstable operation under low bus voltage
- Output over-voltage protection (OVP): Hardware latch to protect backend MCU, sensors and motors
- Over-current protection (OCP): Hiccup auto-recovery mode
- Continuous short-circuit protection: Auto-recover after fault removal, no permanent damage
- Built-in thermal over-temperature shutdown protection
3. Mechanical & Packaging Information
- Package type: 6-pin DIP through-hole plastic module (UL94-V0 flame retardant housing)
- Overall dimension: 25.4 mm × 25.4 mm × 11.7 mm (1×1 inch industry standard footprint)
- Pin layout complies with international standard pin assignment for easy PCB replacement
- Moisture Sensitivity Level: MSL 1, no dry bag storage restriction
- Shipment options: Plastic tube tray, tape-and-reel (-TR) for mass production
4. Environmental & Safety Compliance Ratings
- Continuous operating temperature range: -40 ℃ ~ +85 ℃ (power derating required above 70℃)
- Storage temperature: -55 ℃ ~ +125 ℃
- Three-axis vibration resistance: 10~1000Hz, 10G cyclic vibration test
- Safety certifications: EN/UL/IEC 62368-1 ITE safety standard
- RoHS lead-free & REACH SVHC compliant green design
- High ESD & anti-interference performance for industrial harsh EMI environments
- MTBF ≥ 1,000,000 hours under 25℃ full-load condition
5. Key Product Advantages
- 4:1 ultra-wide 18~75V input, compatible with industrial 48V communication bus, power cabinet DC bus
- High power density 1×1 inch small size, saves PCB layout space
- High conversion efficiency reduces internal heat generation for sealed equipment
- Single regulated output, stable 12V rail for MCU, relay, sensor power supply
- Integrated full protection without extra peripheral protection circuits
- Low standby power consumption, suitable for long-term unattended field devices
Typical Application Scenarios
- Industrial PLC, servo drive, CNC equipment 48V bus auxiliary isolation power
- Communication switches, routers, industrial gateway 12V control power rail
- Power grid monitoring terminal, photovoltaic inverter auxiliary control circuit
- Instrumentation, handheld industrial test & measurement equipment isolated power
- Railway, vehicle on-board electronic control unit DC-DC conversion
- Smart fire alarm, access control, industrial wireless sensor node power supply
- Battery energy storage monitoring system, industrial edge computing modules
LXB Semicon supplies original MORNSUN URB4812YMD-30WR3 30W 1500VDC isolated wide-input regulated DC-DC DIP power module
