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Japan Cosel SUCS1R5123R3 Isolation Voltage Regulator DC-DC Power Module 1.5W 12V Input 3.3V Output DIP/SMD Package
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| Series | SUCS1R5 |
| Rated Power | 1.5W |
| Maximum Output Power | 1.32W (3.3V/0.4A) |
| Input Voltage Range | 9 - 18 Vdc (nominal 12V, 2:1 wide voltage input) |
| Output Voltage | 3.3 Vdc |
| Output Current | 0.4 A (400mA) |
| Output Routine | Single Output |
| Isolation Pressure | 1500 Vdc (input-output, minutes), corrected from the incorrect transmission of 500Vdc on the web page |
| Adjustment Method | Stabilized Output |
| Linear Adjustment Rate | +/- 0.5% (typical) |
| Load Adjustment Rate | ±1.0% (typical) |
| Waviness Noise | 100mVp-p (typical, 20MHz bandwidth) |
| Efficiency | 78% (typical, Vin=12V, full load) |
| Switch Frequency | Approximately 400 kHz (typical) |
| Encapsulation Form | DIP Direct Insert (C suffix, metal housing) / SMD Surface Mount (B/BP suffix) |
| Pin Spacing | 2.54mm (0.1 inch) |
| Material | Metal housing (six-sided shielding) |
| Installation | PCB board mounted |
| Operating Temperature | -40°C to +85°C (ambient temperature, derating according to curve required) |
| Storage Temperature Range | -55°C to +125°C |
| Relative Humidity | 5% - 95% RH (Non-condensing) |
| Cooling Type | Natural cooling/forced air cooling |
| Safety Certification | UL60950-1, C-UL (CSA60950-1), EN62368-1, RoHS Directive |
| Mean Time Between Failures | > 1,000,000 hours (MIL-HDBK-217F, 25°C) |
| Special Version | C-C suffix indicates Conformal Coating protection |
Manufacturer No.
SUCS1R5123R3SUCS1R5123R3BSUCS1R5123R3CSUCS1R5123R3BPSUCS1R5123R3C-CMGS1R5123R3
Interchange No.
MGS1R5123R3
Fitment Vehicles
Industrial Control SystemCommunication Base Station EquipmentInstruments and MetersEmbedded Power DesignDistributed Power Architecture
Electrical and Electronic System - Industrial Encyclopedia
Cosel original SUCS1R5123R3 series isolation voltage regulator DC-DC converter, rated power 1.5W, input voltage 9-18V (nominal 12V), output 3.3V/0.4A, isolation voltage 1500Vdc. Available in DIP through-hole (C suffix) and SMD surface mount (B suffix) packages, metal housing shielding, compliant with UL/EN62368 certification, widely used in industrial control, communication equipment and instrument power module design.