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Cosel SUCW31212 Series 3W Isolated DC-DC Power Module ±12V Dual Output 9-18V Wide Voltage Input SMD/Through Hole Package Industrial Grade
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| Series | SUCW3 (3W) |
| Topology Structure | Isolation-type Flyback/Forward Mixed Topology |
| Input Voltage Range | 9 ~ 18 VDC (Nominal 12V) |
| Output Voltage | Dual ±12 VDC (total voltage 24V) |
| Output Current | 130 mA per channel (total power 3.12W) |
| Rated Power | 3.12 W (Maximum) |
| Input/Output Isolation Voltage | 500 VAC (1 minute, leakage current 1mA) |
| Isolation Resistance | 100 MΩ min (500 VDC) |
| Switch Frequency | Approx. 400 kHz (typical value) |
| Conversion Efficiency | 80% ~ 82% (typical value, full load) |
| Linear Adjustment Rate | ±0.5% Maximum |
| Load Adjustment Rate | ±1.0% Max (symmetrical load) |
| Output Wave Noise | 150 mVp-p Maximum (20MHz Bandwidth) |
| Operating Temperature | -40°C ~ +85°C (Reduced Load Operation Required) |
| Storage Temperature | -40℃ ~ +100℃ |
| Relative Humidity | 5% ~ 95% RH, no condensation |
| Cooling Type | Natural Convection / Conduction Cooling |
| Installation | PCB mounted, supports SMD surface mount (suffix P/BP) and Through-hole insertion |
| Encapsulation Size | 24.0 x 14.0 x 7.5 mm (typical value for SMD version) |
| Pin Spacing | 2.54 mm (0.1 inch) standard DIP/SIP pin |
| Weight | Approx. 4.5 g |
| Safety Certification | UL 60950-1, EN 60950-1, CE Marking (LVD) |
| Environmental Compliance | RoHS3 (EU 2015/863), REACH |
| Mean Time Between Failures | > 1,000,000 hours (Bellcore TR-332, 25℃) |
| Protection Feature | Output short-circuit protection (self-recovery), input under-voltage lockout (UVLO) |
Manufacturer No.
SUCW31212SUCW31212BSUCW31212CSUCW31212BPSUCW31212BP-GSUCW31212B-PSUCW3SUCW31212BP-O
Interchange No.
SUCW31210CMEG41212ZUW31212SUTW31212MGW31212UCW31212
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Electrical and Electronic System - Industrial Encyclopedia
The Cosel SUCW31212 series is a 3W isolated DC-DC power module with input voltage of 9-18VDC, dual output of ±12VDC/130mA, and I/O isolation voltage of 500VAC. It offers various suffix options such as SUCW31212/B/C/BP/BP-G for different packaging, supports SMD surface mount and through hole installation, operates at a temperature range of -40℃ to 85℃, and complies with RoHS3 and UL/CE safety standards. Widely used in industrial control, communication equipment, and distributed power systems.