Murata Power Solutions Isolated 1W DC/DC Converter 12 V Output Dual, 13.2 V dc Input, 10.8 V Input, Through Hole SIP MEJ1

Murata Power Solutions MEJ1 DC/DC Converter is an isolated, low power 1 Watt converter series that provides dual output voltages of +12 V and -12 V. Featuring a SIP (Single In-line Package) style with 7 pins, it supports through-hole mounting making it suitable for compact PCB designs. The device operates over an input voltage range of 10.8 V to 13.2 V dc and delivers a maximum output power of 1 Watt with an efficiency of approximately 76.5%. It is fully encapsulated to ensure durability and electrical isolation, with an isolation voltage rating of 5.2 kV dc.

The converter complies with stringent UL 60950-2 and UL 60601 (3rd Edition) medical safety standards, making it ideal for use as a safety barrier in medical and industrial applications. Its design includes toroidal magnetics with internal SMD construction and a UL 94V-0 fire-resistant package material for enhanced safety.

The MEJ1 series operates reliably across a broad temperature range of -40°C to 85°C, supporting applications in industrial automation, medical instrumentation, IGBT gate drivers, and various control systems where small form factor and isolation are required. Ripple and noise are maintained low at 30 mV peak-to-peak, ensuring stable output signals.

Package dimensions measure 19.65 mm in length, 9.8 mm in width, and 12.65 mm in depth, with a lightweight design weighing approximately 2.1 grams. The SIP package style facilitates easy PCB mounting and integration into compact assemblies.

Operates from 10.8 to 13.2 V dc input voltage range. Provides two outputs +12 V and -12 V with 42 mA current output on the secondary. Isolation voltage of 5.2 kV dc ensures safety in critical applications. Meets UL60950-2 and UL60601 medical safety standards for MOOP protection.

Fully encapsulated construction with toroidal magnetics for noise reduction. Extensive operating temperature range from -40°C to 85°C. Compact SIP package with 7 pins for through-hole mounting. Efficiency of 76.5% suitable for low power industrial use.

Lightweight at 2.1 grams and dimensions optimized for PCB space savings.

This Murata Power Solutions MEJ1 DC/DC Converter is exemplary for applications requiring isolated power delivery with stringent safety and size constraints, including medical devices, industrial controls, and instrumentation.

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