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Equivalent & Substitute Parts Reference: NMH0505DC
Part Overview
Murata Power Solutions Inc. part number NMH0505DC is a DC-DC Converter, featuring isolated dual outputs (+5V and -5V, each up to 200mA), a 2W power rating, and a 1 kV isolation voltage suitable for ITE (Commercial) applications. The product is supplied in a 14-DIP through-hole module and is currently marked as obsolete. When a component reaches "Obsolete" status, sourcing direct replacements becomes critical to maintain production continuity and ongoing support for existing designs. This reference page details equivalent and substitute models that match the electrical and mechanical parameters provided.
Substiute Parts
Key Parameters
| Manufacturer Part Number | Manufacturer | Series | Type | Number of Outputs | Voltage - Input (Min) | Voltage - Input (Max) | Voltage - Output 1 | Voltage - Output 2 | Current - Output (Max) | Power (Watts) | Voltage - Isolation | Applications | Operating Temperature | Efficiency | Mounting Type | Package / Case | Size / Dimension | RoHS Status | REACH Status | Product Status |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| NMH0505DC | Murata Power Solutions Inc. | NMH (2W) | Isolated Module | 2 | 4.5V | 5.5V | 5V | -5V | 200mA, 200mA | 2 W | 1 kV | ITE (Commercial) | -40°C ~ 85°C | 80% | Through Hole | 14-DIP Module (300 mil, 6 Leads) | 0.77" L x 0.39" W x 0.30" H (19.6mm x 9.9mm x 7.6mm) | ROHS3 Compliant | REACH Unaffected | Obsolete |
| NMK0505SC | Murata Power Solutions Inc. | NMK (2W) | Isolated Module | 2 | 4.5V | 5.5V | 5V | -5V | 200mA, 200mA | 2 W | 3 kV | ITE (Commercial) | -40°C ~ 85°C | 83% | Through Hole | 7-SIP Module, 5 Leads | 0.77" L x 0.30" W x 0.40" H (19.7mm x 7.7mm x 10.2mm) | ROHS3 Compliant | REACH Unaffected | Active |
Substitute Part Grouping Explanation
Substitution is based exclusively on alignment of the following key parameters: number and range of outputs, input voltage range, output voltages and currents, power rating, isolation voltage, operating temperature range, mounting type, package/case format, dimensions, compliance status, and application suitability. Only DC DC converter modules meeting these electrical performance requirements and mechanical constraints are included.
Parameter Comparison
| Parameter | NMH0505DC | NMK0505SC |
|---|---|---|
| Type | Isolated Module | Isolated Module |
| Number of Outputs | 2 | 2 |
| Voltage - Input (Min) | 4.5V | 4.5V |
| Voltage - Input (Max) | 5.5V | 5.5V |
| Voltage - Output 1 | 5V | 5V |
| Voltage - Output 2 | -5V | -5V |
| Current - Output (Max) | 200mA, 200mA | 200mA, 200mA |
| Power (Watts) | 2 W | 2 W |
| Voltage - Isolation | 1 kV | 3 kV |
| Applications | ITE (Commercial) | ITE (Commercial) |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C |
| Efficiency | 80% | 83% |
| Mounting Type | Through Hole | Through Hole |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant |
| REACH Status | REACH Unaffected | REACH Unaffected |
| Product Status | Obsolete | Active |
Engineering Selection Recommendations
The Murata Power Solutions NMH0505DC is classified as obsolete. The substitute part NMK0505SC is listed as active and matches the required RoHS3 compliance and REACH status. Both parts satisfy the necessary inventory and certification criteria for direct replacement in commercial ITE applications.
Frequently Asked Questions (FAQ)
Q: What parameters must match when substituting the NMH0505DC?
A: Matching parameters include input voltage range, output voltages and currents, power rating, number of outputs, isolation voltage, operating temperature, mounting type, package or case format, and compliance certifications.
Q: Does the change in package/case affect installation?
A: NMH0505DC uses a 14-DIP module (300 mil, 6 Leads); NMK0505SC uses a 7-SIP module, 5 Leads. Ensure compatibility with PCB layout and mechanical constraints.
Q: Are both parts RoHS and REACH compliant?
A: Both NMH0505DC and NMK0505SC are ROHS3 compliant and REACH unaffected.
Q: Is there a difference in isolation voltage or efficiency?
A: The substitute NMK0505SC offers a higher isolation voltage (3 kV vs. 1 kV) and a higher efficiency (83% vs. 80%) than the NMH0505DC.
Q: Is operating temperature range consistent?
A: Both parts specify an operating temperature of -40°C to +85°C.
Q: Can the substitute part be used in the same application category?
A: Both modules are designated for ITE (Commercial) applications.
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