Equivalent & Substitute Parts for HPR118C

Part Overview

Murata Power Solutions Inc. HPR118C is an isolated DC-DC converter module with a single 5V output, rated for up to 150mA and 1W power. It features a wide input voltage range (21.6V to 26.4V), 750V isolation, and is packaged in a 7-SIP Module with 5 leads. As the product status is listed as “Last Time Buy,” it is necessary to identify substitute models to ensure continued design availability and inventory support.

Key Parameters

Parameter	Value
Manufacturer Part Number	HPR118C
Type	Isolated Module
Number of Outputs	1
Voltage - Input (Min)	21.6V
Voltage - Input (Max)	26.4V
Voltage - Output 1	5V
Current - Output (Max)	150mA
Power (Watts)	1 W
Voltage - Isolation	750 V
Applications	ITE (Commercial)
Operating Temperature	-40°C ~ 100°C
Efficiency	65%
Mounting Type	Through Hole
Package / Case	7-SIP Module, 5 Leads
Size / Dimension	0.77" L x 0.24" W x 0.40" H (19.6mm x 6.1mm x 10.2mm)
RoHS Status	ROHS3 Compliant
REACH Status	REACH Unaffected

Substitute Part Grouping Explanation

Substitute model selection is strictly based on matching the following key parameters:

Type: Isolated Module
Number of Outputs: 1
Input Voltage Range: must include 21.6V–26.4V
Output Voltage: 5V
Output Current: ≥150mA
Output Power: 1W
Isolation Voltage: ≥750V
Operating Temperature: covers -40°C minimum
Package: 7-SIP Module
RoHS and REACH Compliance

Parameter Comparison

Parameter	Main Part HPR118C	Substitute MER1S2405SC
Manufacturer Part Number	HPR118C	MER1S2405SC
Type	Isolated Module	Isolated Module
Number of Outputs	1	1
Voltage - Input (Min)	21.6V	22.6V
Voltage - Input (Max)	26.4V	26.4V
Voltage - Output 1	5V	5V
Current - Output (Max)	150mA	200mA
Power (Watts)	1 W	1 W
Voltage - Isolation	750 V	1 kV
Operating Temperature	-40°C ~ 100°C	-40°C ~ 85°C
Efficiency	65%	84%
Mounting Type	Through Hole	Through Hole
Package / Case	7-SIP Module, 5 Leads	7-SIP Module, 4 Leads
Size / Dimension	0.77" x 0.24" x 0.40"	0.77" x 0.24" x 0.40"
RoHS Status	ROHS3 Compliant	ROHS3 Compliant
REACH Status	REACH Unaffected	REACH Unaffected

Engineering Selection Recommendations

The main part HPR118C has a “Last Time Buy” status, while its recommended substitute MER1S2405SC is active and available in original stock. Both parts are ROHS3 compliant and REACH unaffected. Only substitute models matching compliance and certifications should be selected for continued procurement.

Frequently Asked Questions (FAQ)

Q1: What are the critical parameters for DC-DC converter substitution in this category?
A1: Substitution is based on matching type (Isolated Module), input voltage range, output voltage/current, output power, isolation voltage, operating temperature, mounting type, package, and compliance (RoHS and REACH).

Q2: Is MER1S2405SC a direct substitute for HPR118C in terms of package and mechanical dimensions?
A2: Both use the 7-SIP module format with nearly identical dimensions. Lead count differs (5 on HPR118C, 4 on MER1S2405SC), which should be considered for direct board-level replacements.

Q3: Are there application differences between HPR118C and MER1S2405SC?
A3: Both are specified for ITE (Commercial) applications per the provided data.

Q4: What compliance certifications are mandatory for substitutes in this selection?
A4: Substitute parts must be ROHS3 compliant and not affected by REACH, aligning with the main part.

Q5: How does input voltage compatibility affect substitution?
A5: Substitute must have an input voltage range fully covering the required minimum and maximum values. MER1S2405SC has a minimum input voltage of 22.6V compared to 21.6V on HPR118C; this must be considered for applications requiring lower input voltages.

Q6: Why is it necessary to seek substitute DC-DC converter models?
A6: HPR118C is in Last Time Buy status, requiring evaluation of substitute models to avoid inventory and supply chain interruptions.

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