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NMK1205SC Equivalent & Substitute Parts Reference
Part Overview
The NMK1205SC from Murata Power Solutions Inc. is an isolated DC-DC converter module delivering ±5V outputs at 200mA with 2W total power, intended for ITE (commercial) applications. As this product is listed with an obsolete status, identifying suitable substitutes is essential for ensuring supply continuity in new or existing designs. Substitution is carried out strictly based on matching key electrical and mechanical parameters defined for isolated DC-DC converters in the same product class.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | NMK1205SC |
| Manufacturer | Murata Power Solutions Inc. |
| Type | Isolated Module |
| Number of Outputs | 2 |
| Voltage - Input (Min) | 10.8V |
| Voltage - Input (Max) | 13.2V |
| Voltage - Output 1 | 5V |
| Voltage - Output 2 | -5V |
| Current - Output (Max) | 200mA, 200mA |
| Power (Watts) | 2 W |
| Voltage - Isolation | 3 kV |
| Operating Temperature | -40°C ~ 85°C |
| Mounting Type | Through Hole |
| Package / Case | 7-SIP Module, 5 Leads |
| Size / Dimension | 0.77" L x 0.30" W x 0.40" H (19.7mm x 7.7mm x 10.2mm) |
| RoHS Status | ROHS3 Compliant |
| Product Status | Obsolete |
Substitute Part Grouping Explanation
Permissible substitute DC-DC converter modules are grouped based on strict electrical and mechanical equivalence. The key parameters for classification include number of outputs, input voltage range, output voltages and currents, total power rating, isolation voltage, operating temperature, mounting method, package type, and physical dimensions. Substitutes must also match compliance status and product certifications as provided.
Parameter Comparison
| Parameter | NMK1205SC | MEJ2D1205SC |
|---|---|---|
| Manufacturer | Murata Power Solutions Inc. | Murata Power Solutions Inc. |
| Type | Isolated Module | Isolated Module |
| Number of Outputs | 2 | 2 |
| Voltage - Input (Min) | 10.8V | 10.8V |
| Voltage - Input (Max) | 13.2V | 13.2V |
| 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 | 3 kV | 5.2 kV |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C |
| Mounting Type | Through Hole | Through Hole |
| Package / Case | 7-SIP Module, 5 Leads | 7-SIP Module, 5 Leads |
| Size / Dimension | 0.77" L x 0.30" W x 0.40" H (19.7mm x 7.7mm x 10.2mm) | 0.77" L x 0.39" W x 0.50" H (19.7mm x 10.0mm x 12.7mm) |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant |
| Product Status | Obsolete | Active |
Engineering Selection Recommendations
The NMK1205SC is obsolete; the MEJ2D1205SC is active and compliant with ROHS3 and REACH regulations. Both parts satisfy inventory and compliance requirements. Substitution is permitted when all listed parameters (output, input range, output voltage/current, total power, isolation voltage, operating temperature, mounting, package, and certifications) are met as shown.
Frequently Asked Questions (FAQ)
Q1: What are the critical parameters for substituting NMK1205SC?
A1: The critical parameters are number of outputs, input voltage range, output voltages and currents, total power, isolation voltage, operating temperature, mounting type, package style, size, and RoHS/REACH compliance.
Q2: Is the MEJ2D1205SC footprint compatible with the NMK1205SC?
A2: Both use a 7-SIP Module, 5 Leads package and are through-hole, but physical size differs slightly. Mechanical compatibility should be verified based strictly on provided package dimensions.
Q3: Does the MEJ2D1205SC meet the same operating temperature and application standards?
A3: Yes. Both devices support -40°C to 85°C and are specified for ITE (Commercial) applications.
Q4: Are there isolation voltage differences that should be considered?
A4: Yes. NMK1205SC offers 3 kV, while MEJ2D1205SC offers 5.2 kV. The substitute part provides a higher isolation rating.
Q5: Does compliance status affect substitutability?
A5: Both parts are ROHS3 compliant and REACH unaffected. Compliance status is suitable for substitution based on the provided data.
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