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NKE0505SC

NKE0505SC

Murata Power Solutions Inc.
Isolated Module DC DC Converter 1 Output 5V 200mA 4.5V - 5.5V Input
Active5,356 in stock
Datasheet Digi-Key Compare Prices

Overview

The NKE0505SC is a sub-miniature 1W isolated DC-DC converter module designed to provide a regulated 5V output from a 4.5V to 5.5V input. It features a high isolation voltage of 3kVDC in a compact 4-pin SIP package, making it ideal for breaking ground loops and providing local power rails in space-constrained designs.

Why Choose This Part

The NKE0505SC offers a high isolation-to-footprint ratio with its 3kVDC rating in a package measuring only 11.5mm by 6.0mm. Its simple 4-pin SIP configuration requires no external components for basic operation, simplifying PCB layout and reducing the total bill of materials.

Applications

RS485/RS232 Isolation
Providing isolated power to transceivers to prevent ground loop currents in long-distance industrial communication links.
Analog Circuit Noise Reduction
Isolating sensitive analog circuitry from noisy digital power planes to improve signal integrity.
Sensor Power Supplies
Providing clean, isolated 5V power to industrial sensors and instrumentation modules.

Key Specifications

Type Isolated Module
Efficiency 69%
Applications ITE (Commercial)
Mounting Type Through Hole
Power (Watts) 1 W
Package / Case 4-SIP Module
Size / Dimension 0.45" L x 0.24" W x 0.29" H (11.5mm x 6.0mm x 7.5mm)
Number of Outputs 1
Voltage - Output 1 5V
Voltage - Isolation 3 kV
Operating Temperature -40degC ~ 85degC
Voltage - Input (Max) 5.5V
Voltage - Input (Min) 4.5V
Current - Output (Max) 200mA

Getting Started

When integrating this module, ensure a minimum load of 10 percent is maintained to keep the output voltage within specification. Engineers should place decoupling capacitors close to the input and output pins to mitigate high-frequency switching noise, and follow recommended PCB creepage and clearance distances to maintain the 3kV isolation rating.

Also Consider

MEE1S0505SC Murata Power Solutions Inc. - Offers a similar 1W 5V-to-5V profile but with a lower 1kVDC isolation rating for cost-sensitive applications.
RO-0505S RECOM Power - A pin-compatible alternative with 1kVDC isolation suitable for general purpose board-level power distribution.
NME0505SC Murata Power Solutions Inc. - Another 1W isolated option from the same manufacturer with 1kVDC isolation and slightly different efficiency characteristics.