CML public technical record

MYMGM5R012ELA5RND

Murata Manufacturing / MonoBK 12 A DC-DC converter series

LifecycleNRNDQualificationLAB_VERIFICATION_REQUIRED

Item typePOWER MODULE

Effective2025-07-07

Known2026-09-16

FreshnessPOLICY_NOT_CONFIGURED

Record hashf18e8d0dd74abd68...

Technical issue

What changed

The reviewed Murata datasheet identifies the D-suffix variant as NRND; an earlier effective date is not established, so the document revision date is used as the observable boundary with limitation.

Established

Known facts

SOURCE_FACT: MYMGM5R012ELA5RND is marked NRND in the manufacturer datasheet.
SOURCE_FACT: The series is a 12 A non-isolated DC-DC converter with 7.5-15 V input and a 10.5 x 9.0 x 5.0 mm package class.
SOURCE_FACT: Murata maintains a separate discontinued/NRND index and a DC-DC cross-reference surface.

Open

What is not yet known

An exact OEM successor for this suffix is not established in the reviewed snapshot.
Customer output setpoint, transient limits, EMI class and thermal environment are unknown.
No bench comparison or customer qualification evidence is present.

Alternative

Replacement paths

OEM_REPLACEMENT_UNRESOLVED

No candidate is established in the reviewed evidence. Empty is an explicit state, not a missing screen.

Verification

Compatibility matrix

PAPER != QUALIFIED

Dimension	Current state	Required evidence or test
Mechanical	REQUIRES_TEST	Package and land-pattern comparison
Pinout	UNKNOWN	Pin map and control polarity
Electrical	REQUIRES_TEST	Line/load regulation and transient response
Thermal	REQUIRES_TEST	Derating in customer airflow and board stack
Emi Emc	REQUIRES_TEST	Conducted and radiated emissions
Safety	NOT_APPLICABLE	Non-isolated module; system-level safety scope remains separate

Required verification

No-load and full-load
Load transient
Line transient
Startup and shutdown
Ripple and noise
Efficiency
Thermal derating
Short circuit
EMI/EMC
Temperature sweep

Current decision path

Freeze the exact suffix and customer operating envelope, then request Murata cross-reference confirmation. Any candidate remains paper-level until electrical, thermal and EMI verification is complete.

MONITORQUALIFY SECOND SOURCEREDESIGN

Request technical analysis

Counter-evidence

What weakens the case

The base series remains documented and only a specific suffix is visibly marked NRND. This may reduce immediate operational impact if the customer uses another orderable suffix; BOM identity must be exact.

Verify

Lineage

Record ID: SE.CML.RECORD.MURATA.MYMGM5R012ELA5RND.v0.1
Input hash: ae15037e6e98fb0b354af37192e3820479b94023bd6388ce566740c66afe9823
Record hash: f18e8d0dd74abd6874d4325af895197e07bb10d331f2e18167891f28a6b3f9dd
Boundary: PUBLIC_EVIDENCE_ONLY_NO_CLIENT_BOM

Open verification record