NMS1209C Equivalent & Substitute DC-DC Converter Reference

Part Overview

The NMS1209C by Murata Power Solutions Inc. is an obsolete, isolated DC-DC converter in the NMS (2W) series, delivering dual polarity ±9V outputs at 111mA per channel from an input range of 10.8V to 13.2V with 2W power rating and 6 kV isolation. It is housed in a through-hole 24-DIP (600 mil, 14 Leads) package. Since the NMS1209C is obsolete and may be unavailable for new designs or ongoing support, identification of qualified substitute models is essential to ensure continued system compatibility and supply chain resilience.

Substiute Parts

NMS1209C

Murata Power Solutions Inc.In Stock: 2482NMS1209C Datasheet

Current PartRFQ

MEJ2D1209SC

Murata Power Solutions Inc.In Stock: 2524MEJ2D1209SC Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts are included based exclusively on matching the primary electrical parameters:

• Type (Isolated Module)
• Number of Outputs (2)
• Input Voltage Range (10.8V–13.2V)
• Output Voltages (9V, -9V)
• Output Currents (111mA, 111mA)
• Power Rating (2 W)
• Mounting Type (Through Hole)
• Compliance (RoHS, REACH)

Other characteristics such as package/case, isolation voltage, efficiency, operating temperature, and series are also considered where available and within provided parameters.

Parameter Comparison

Engineering Selection Recommendations

The NMS1209C is obsolete, whereas the MEJ2D1209SC is active and ROHS3 compliant with REACH unaffected status. Both parts conform to strict regulatory compliance and are suitable for applications demanding current environmental and supply chain certifications. ECCN and HTSUS classifications are equivalent. Selection should be based on product status and regulatory alignment as provided.

Frequently Asked Questions (FAQ)

Q: What are the key criteria for substituting the NMS1209C DC-DC converter?
A: Substitute selection is based on matching electrical performance (input range, output voltages and currents, power, isolation), mounting type, and compliance (RoHS/REACH status).

Q: Can the MEJ2D1209SC replace the NMS1209C in all footprints?
A: Package differences exist (24-DIP vs. 7-SIP). Mechanical compatibility should be reviewed for footprint and height, using the provided package or case information.

Q: Is there any change in environmental or regulatory compliance between NMS1209C and MEJ2D1209SC?
A: Both parts are ROHS3 compliant and REACH unaffected.

Q: Are the output electrical parameters identical for both models?
A: The input voltage range, output voltages, output currents, and efficiency are equivalent as per the provided specifications.

Q: Is the isolation voltage specification the same?
A: The NMS1209C specifies 6 kV; the MEJ2D1209SC specifies 5.2 kV. Compare these values to end-system requirements.

Q: Are there differences in application suitability?
A: Both are suitable for ITE (Commercial) use, with MEJ2D1209SC including Medical as an additional application per manufacturer.

Q: Is moisture sensitivity a consideration?
A: The NMS1209C is MSL 1 (Unlimited). MEJ2D1209SC is listed as Not Applicable in the provided data.