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Coilcraft

MSD1278-123MLB

Coupled Inductor · SMD · Passive
Part Status: Active
Data last refreshed Jul 27, 2026
Manufacturer
Coilcraft
Mfr Part #
MSD1278-123MLB
Series
MSD1278
Category
Coupled Inductor
Datasheet
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Availability & Pricing
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Product Attributes

Electrical & Parametric
Inductance12 µH
Tolerance±20%
Current Rating2.4 A
Dc Resistance0.055 Ω
Physical & Thermal
Package / CaseSMD
Mounting TypeSurface Mount
SeriesMSD1278
Operating Temperature-40°C ~ 85°C
Classification & Lifecycle
CategoryCoupled Inductor
TypePassive
Part StatusActive

12 µH, 20%, 2.4 A, shielded 1:1 coupled inductor

Environmental & Export Classifications

RoHS Status
RoHS Compliant

Part Activity

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Engineering FAQ

What are the key specifications of MSD1278-123MLB?
Inductance: 12 µH; Tolerance: ±20%; Current Rating: 2.4 A; Dc Resistance: 0.055 Ω.
What package is MSD1278-123MLB supplied in?
MSD1278-123MLB is supplied in the SMD package, surface mount, rated -40°C ~ 85°C.
Can ZDI source MSD1278-123MLB beyond the quantities shown?
Yes — ZD Integrated Circuits specializes in sourcing hard-to-find, obsolete, and excess electronic components through its global network, with counterfeit-avoidance inspection on every lot. Submit an RFQ with your target quantity for availability and pricing.

Documents & Media

Quality & Counterfeit Avoidance

ISO 9001 ERAI Member ESD Certified GIDEP Participant ZDI EQuality Process CAGE Code 1V8K2

ZD Integrated Circuits operates an ISO 9001-certified quality system incorporating JEDEC-standard process-control elements. In an era of global sourcing and internet procurement, standards compliance alone no longer assures component authenticity — so ZDI pioneered a multi-layered counterfeit-avoidance program: supplier analysis at the source-country level, detailed component analysis, defined inspection standards for all incoming devices, and stringent supplier rating and review. These programs let ZDI guarantee the integrity and the source of every component it ships.

Every lot moves through ZDI's EQuality Process™ — validation, QI-1 and QI-2/camera inspection, RoHS verification, bake and bag-and-tag, and QI-3 final inspection — with Quality-Manager disposition before release. Nonconforming material is quarantined; conforming material is warehoused or shipped.

✓Multi-stage EQuality Process™ inspection (QI-1 · QI-2/camera · QI-3)
✓Source-country supplier analysis, rating & review
✓Incoming inspection, RoHS verification, bake, full lot traceability
✓ESD-controlled handling · authentic parts guaranteed

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