Equivalent & Substitute Parts for LME0505DC

Part Overview

The Murata Power Solutions Inc. LME0505DC is an obsolete isolated module DC-DC converter with a single 5V output at up to 50mA, 0.25W power rating, and 1kV isolation. It is designed for ITE (Commercial) applications and provides SCP (short circuit protection). Due to product obsolescence, it is necessary to identify direct substitutes to maintain system compatibility and ensure continued support for designs requiring this specific voltage, current, footprint, and feature set.

Key Parameters

Manufacturer Part Number	Manufacturer	Series	Product Status	Type	Number of Outputs	Voltage - Input (Min)	Voltage - Input (Max)	Voltage - Output 1	Current - Output (Max)	Power (Watts)	Voltage - Isolation	Applications	Mounting Type	Package / Case	Size / Dimension	Operating Temperature	Efficiency	RoHS Status	REACH Status	ECCN	HTSUS
LME0505DC	Murata Power Solutions Inc.	LME (0.25W)	Obsolete	Isolated Module	1	4.5V	5.5V	5V	50mA	250mW	1kV	ITE (Commercial)	Through Hole	7-DIP Module, 4 Leads	0.45" L x 0.39" W x 0.27" H (11.5mm x 9.8mm x 6.8mm)	0°C ~ 70°C	70%	RoHS Compliant	REACH Unaffected	EAR99	8504.40.9580

Substitute Part Grouping Explanation

Direct substitutes for the LME0505DC must precisely match key electrical and mechanical parameters: input voltage, output voltage, output current (must meet or exceed original), isolation voltage, package size and type, application specification, mounting type, and efficiency. Compliance attributes and certifications (RoHS, REACH, ECCN, HTSUS) must also be compatible. Only parts fitting these criteria are grouped as substitutes.

Key parameters considered:

Input Voltage Range
Output Voltage
Maximum Output Current
Isolation Voltage
Mounting Type and Package
Efficiency
Application
Regulatory Compliance

Parameter Comparison

Manufacturer Part Number	Manufacturer	Series	Product Status	Type	Number of Outputs	Voltage - Input (Min)	Voltage - Input (Max)	Voltage - Output 1	Current - Output (Max)	Power (Watts)	Voltage - Isolation	Applications	Efficiency	Mounting Type	Package / Case	Size / Dimension	Operating Temperature	RoHS Status	REACH Status	ECCN	HTSUS
LME0505DC	Murata Power Solutions Inc.	LME (0.25W)	Obsolete	Isolated Module	1	4.5V	5.5V	5V	50mA	250mW	1kV	ITE (Commercial)	70%	Through Hole	7-DIP Module, 4 Leads	0.45" L x 0.39" W x 0.27" H (11.5mm x 9.8mm x 6.8mm)	0°C ~ 70°C	RoHS Compliant	REACH Unaffected	EAR99	8504.40.9580
CME0505DC	Murata Power Solutions Inc.	CME (0.75W)	Active	Isolated Module	1	4.5V	5.5V	5V	150mA	750mW	1kV	ITE (Commercial)	70%	Through Hole	8-DIP Module, 4 Leads	0.45" L x 0.39" W x 0.27" H (11.5mm x 9.8mm x 6.8mm)	-40°C ~ 85°C	ROHS3 Compliant	REACH Unaffected	EAR99	8504.40.9580

Engineering Selection Recommendations

LME0505DC is marked obsolete and RoHS compliant. For continued production or design maintenance, substitute selection must retain original compliance (RoHS, REACH, ECCN, HTSUS) and match or exceed electrical, thermal, and mechanical criteria. The CME0505DC is active and meets all presented compliance and certification parameters, as well as matching electrical and mechanical specifications as provided.

Frequently Asked Questions (FAQ)

Q1: What are the critical substitution criteria for the LME0505DC DC-DC converter?
A1: Substitution requires the same input voltage range (4.5V to 5.5V), output voltage (5V), output current (minimum 50mA), isolation (1kV), package size/dimensions, mounting type, efficiency (70%), and application suitability for ITE (Commercial). Regulatory compliance and certification status must also match.

Q2: Is the CME0505DC compatible with the footprint and pinout of the LME0505DC?
A2: Both parts share identical size/dimensions (0.45" L x 0.39" W x 0.27" H) and through-hole mounting. The CME0505DC uses an 8-DIP module, while the LME0505DC uses a 7-DIP module; both have 4 leads as specified.

Q3: Does the CME0505DC provide the same or greater output power and current as the LME0505DC?
A3: CME0505DC offers up to 750mW and 150mA, exceeding the LME0505DC's 250mW and 50mA.

Q4: Are there differences in operating temperature ranges between the two models?
A4: Yes, LME0505DC operates from 0°C to 70°C, while CME0505DC ranges from -40°C to 85°C.

Q5: Is regulatory compliance equivalent for both the LME0505DC and CME0505DC?
A5: Both are RoHS compliant and REACH unaffected, sharing ECCN EAR99 and HTSUS 8504.40.9580 classifications.

Q6: Is the substitute part's status suitable for ongoing production?
A6: The CME0505DC is active, suitable for ongoing use, while the LME0505DC is obsolete.

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