PKR4221ASI Specifications Series Power Modules Part Number PKR4221ASI Product Attributes Legacy, Multi-output Status Discontinued Isolation Isolated Regulation Regulated Input Voltage (min) 36V Input Voltage (max) 75V Output Voltage (typical) 12V Output Voltage (min) 9V Output Voltage (max) 15V Output Power 7.5W Output Current 0.62A Paralleling None Isolation Voltage 1500V Multi-Output TRUE Series PKR Typical Efficiency 86.2% Length 47.8mm Width 28.6mm Height 8mm Package Type Open Frame Mounting Type SMD Application Telecom, Industrial Output 2 Voltage (min) 9V Output 2 Voltage (nominal) 12V Output 2 Voltage (max) 15V Output 2 Power (max) 7.5W Output 2 Current (max) 0.62A Images are for illustrative purposes only. Resources Datasheets PKR4000A Technical Papers TP020: Verification & Qualification Considerations TP018: Safety Requirements Safety Product Notice – UL62368 upgrade Application Notes AN319: Repair & Rework Recommendations Design Notes DN015: 48V Enable with RC Pin DN014: Voltage Monitoring DN013: OnOff Control with RC Pin DN026: Start-Up with External Voltage on Output DN012: Ouput Overvoltage Protection DN025: Forced Air Cooling at High Altitude DN007: Output Voltage Alarm Circuit DN024: Power Modules Basics DN002: Power Supply Reliability Aspects DN023: Architecture Selection DN022: Output Ripple & Noise Measurement DN021: Enabling with RC Pin DN028: Thermal Characterization in Sealed Applications DN019: Thermal Characterization DN029: Conducted EMC Filters DN027: Test Methods Brochures Telecom DC/DC Solutions 2026 Selection Guide 2026 Flyer: Flex Power Modules’ capabilities Industrial and Railway DC/DC Solutions 2025 Environmental REACH Statement of Compliance RoHS Statement of Compliance Stock
