NMG0509SC Equivalent & Substitute Parts Reference

Part Overview

Murata Power Solutions Inc. NMG0509SC is classified as an isolated module DC-DC converter, delivering a single output of 9V at up to 222mA, rated for 2W power. The device operates within a 4.5V to 5.5V input range and features 1 kV isolation. Primary use cases include ITE (Commercial) applications. With the part's status marked as obsolete, sourcing direct replacements is required for ongoing designs or maintenance programs.

Key Parameters

Parameter	Main Part (NMG0509SC)
Type	Isolated Module
Number of Outputs	1
Voltage - Input (Min)	4.5V
Voltage - Input (Max)	5.5V
Voltage - Output 1	9V
Current - Output (Max)	222mA
Power (Watts)	2 W
Voltage - Isolation	1 kV
Applications	ITE (Commercial)
Operating Temperature	-40°C ~ 85°C
Efficiency	86.5%
Mounting Type	Through Hole
Package / Case	7-SIP Module, 4 Leads
Size / Dimension	0.77" L x 0.30" W x 0.40" H (19.6mm x 7.6mm x 10.2mm)
Product Status	Obsolete
RoHS Status	ROHS3 Compliant
REACH Status	REACH Unaffected

Substitute Part Grouping Explanation

Substitute DC-DC converters are determined exclusively by matching key electrical and mechanical parameters: input voltage range, output voltage, output current, maximum power, isolation voltage, operating temperature, mounting method, package type, compliance status, and application suitability. Only parts meeting all explicit criteria listed above are considered equivalent substitutes.

Parameter Comparison

Parameter	Main Part: NMG0509SC	Substitute: MEJ2S0509SC
Type	Isolated Module	Isolated Module
Number of Outputs	1	1
Voltage - Input (Min)	4.5V	4.5V
Voltage - Input (Max)	5.5V	5.5V
Voltage - Output 1	9V	9V
Current - Output (Max)	222mA	222mA
Power (Watts)	2 W	2 W
Voltage - Isolation	1 kV	5.2 kV
Applications	ITE (Commercial)	ITE (Commercial), Medical
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C
Efficiency	86.5%	78%
Mounting Type	Through Hole	Through Hole
Package / Case	7-SIP Module, 4 Leads	7-SIP Module, 4 Leads
Size / Dimension	0.77" L x 0.30" W x 0.40" H (19.6mm x 7.6mm x 10.2mm)	0.77" L x 0.39" W x 0.50" H (19.7mm x 10.0mm x 12.7mm)
Product Status	Obsolete	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant
REACH Status	REACH Unaffected	REACH Unaffected

Engineering Selection Recommendations

Selection between NMG0509SC and MEJ2S0509SC should be driven by product status and compliance requirements. NMG0509SC is obsolete; MEJ2S0509SC is active and ROHS3 compliant, REACH unaffected, and delivers identical key electrical performance with matching mounting and package specifications. The MEJ2S0509SC also meets commercial application requirements. Inventory levels for substitute parts should be evaluated for production continuity.

Frequently Asked Questions (FAQ)

Q: What are the critical substitution criteria for DC-DC converters in this category?
A: Substitute parts must match input voltage range, output voltage, output current, power rating, type, isolation voltage, mounting method, package configuration, operating temperature, and compliance status.

Q: Is the MEJ2S0509SC footprint and pinout compatible with NMG0509SC?
A: Both use a 7-SIP Module, 4 Leads package and through-hole mounting, supporting mechanical interchangeability. Refer to the dimensional comparison for verification.

Q: Does the change in efficiency impact equivalent selection?
A: Efficiency is a listed parameter; both parts meet electrical functionality. Specific efficiency requirements should be checked against system needs.

Q: Are there differences in application suitability between NMG0509SC and MEJ2S0509SC?
A: Both specify ITE (Commercial). MEJ2S0509SC additionally lists Medical applications.

Q: What compliance standards are maintained across substitute parts?
A: Both NMG0509SC and MEJ2S0509SC are ROHS3 compliant and REACH unaffected.

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