Specifications
IF0505XT-1WR3 is a 1W fixed-input isolated unregulated SMD DC-DC converter module manufactured by MORNSUN (Guangzhou Mornsun Technology) under the IF_XT-1WR3 series.
Suffix Definition
- IF: 3000VAC high isolation unregulated single-output series
- 0505: 5V fixed input, 5V single output
- XT: Compact SMD surface-mount package form factor
- 1W: Max output power 1 Watt
- R3: Standard industrial specification revision; -TR suffix for tape-and-reel packaging
MORNSUN IXXXT-1WR3 Module Appearance
1. Core Electrical Specifications
Input Parameters
- Nominal input voltage: 5 VDC
- Operating input range: 4.75 V ~ 5.25 V
Output Parameters
- Output voltage: 5 VDC (unregulated)
- Max output current: 200 mA
- Rated output power: 1 W
- Typical efficiency: 69% at full load
Isolation & Insulation
- Input-output isolation withstand voltage: 3000 VAC / 4200 VDC (1 min test, leakage ≤1mA)
- Insulation resistance ≥ 1000 MΩ @ 500 VDC
Switching & Load
- Internal switching frequency: 250 kHz
- Max capacitive load: 2.4 mF
- Built-in continuous short-circuit self-recovery protection
2. Mechanical & Packaging Info
- Package type: 6-pin SMD surface-mount module
- Outer dimension: 15.24 mm × 8.50 mm × 7.25 mm
- Housing material: UL94-V0 flame-retardant black plastic
- Moisture Sensitivity Level: MSL 1 (no dry-bag storage limit before reflow)
- Shipment options: Tube bulk / Tape-and-reel (IF0505XT-1WR3-TR)
3. Environmental & Reliability Ratings
- Operating temperature range: -40 ℃ ~ +85 ℃ (power derating required above 70℃)
- Vibration resistance: 10–1000 Hz, 10G, X/Y/Z three-axis cyclic test
- Compliance: RoHS lead-free, EN 62368-1 ITE safety standard
- No extra external LC filter required for basic digital isolation power supply
4. Key Product Features
- 3kVAC reinforced isolation, ideal for signal isolation between digital ground and power ground
- Ultra-compact SMD footprint for miniaturized PCB layout
- Fixed 5V in / 5V out unregulated topology, simple peripheral circuit
- Automatic short-circuit protection, no permanent damage under continuous short
- Low standby power loss, suitable for low-power industrial control boards
Typical Application Scenarios
- Industrial PLC, CAN/RS485 communication transceiver isolated power supply
- Medical low-voltage signal isolation circuits (sensor analog front-end)
- Embedded MCU, FPGA auxiliary isolated power rail
- ITE test equipment, handheld measurement instrument isolation power
- Smart building fire alarm, access control circuit isolation power supply
- Battery-powered IoT sensor node isolated signal power
LXB Semicon supplies original MORNSUN IF0505XT-1WR3 1W 3kV isolated SMD DC-DC power module







