Monolithic Power Systems Inc. MPL-SE2512-R68

Overview

MPL-SE2512-R68 from Monolithic Power Systems is a semi-shielded power inductor with 0.68 µH nominal inductance (±20%), 28 mΩ typical DCR, 3.9 A rated current (ΔT = 40 K), and 5 A saturation current at both 25°C and 100°C ambient - designed for high-efficiency DC-DC converters in space-constrained portable electronics.

For engineers reviewing the MPL-SE2512-R68 datasheet, MPL-SE2512-R68 pinout (non-applicable - passive two-terminal device), MPL-SE2512-R68 application in buck converter output filters, or MPL-SE2512-R68 equivalent inductor alternatives, this page delivers verified electrical specs, thermal behavior context, package dimensions, and real-world use constraints per MPS Rev. 1.2.

Technical Context

This inductor employs a semi-shielded ferrite core construction to suppress magnetic flux leakage while enabling compact 2.5 mm × 2.0 mm × 1.2 mm footprint. Its low-profile design supports PCB height restrictions in wearable and IoT devices without sacrificing saturation margin.

Electrical performance is characterized at 100 kHz / 100 mA for inductance, with rated current defined under standardized single-layer PCB thermal test conditions (35 µm Cu, 30×50 mm board). Saturation threshold reflects 30% inductance drop at both 25°C and 100°C ambient - indicating stable magnetic performance across full operating temperature range.

Key Specifications

Pinout & Package

As a two-terminal passive component, MPL-SE2512-R68 has no pinout. It is a surface-mount, semi-shielded molded inductor in a 2.5 mm × 2.0 mm × 1.2 mm rectangular package with exposed copper pads on bottom for thermal and electrical connection.

Key Features

Applications

Availability

MPL-SE2512-R68 is available at Aetrix Electronics and suitable for battery-powered wearables, IoT edge nodes, and portable medical devices requiring stable component supply with guaranteed long-term manufacturability.

Supply support for MPL-SE2512-R68 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Monolithic Power Systems (MPS) is a fabless semiconductor company specializing in high-performance power management ICs and magnetics, headquartered in Kirkland, WA, with global design and support centers.

The MPL-SE series targets space- and thermally-constrained DC-DC applications, emphasizing low-profile semi-shielded inductors optimized for efficiency, EMI control, and reliability in portable and battery-centric systems.

FAQ

Is MPL-SE2512-R68 suitable for automotive applications?

Yes - its −40°C to +125°C operating temperature range (including self-heating) meets AEC-Q200 stress test guidelines for passive components in non-under-hood automotive modules such as infotainment displays and body controllers. Derating per PCB layout and airflow remains essential.

What is the recommended land pattern for MPL-SE2512-R68?

MPS specifies a 2.40 mm × 1.00 mm pad length with 0.30 mm solder mask opening and 0.20 mm stencil aperture for optimal reflow wetting and thermal transfer. The full land pattern is detailed in Rev. 1.2 datasheet Figure 4, page 4.

How does saturation current change with ambient temperature?

Unlike many inductors, MPL-SE2512-R68 maintains identical 5 A typical ISAT at both 25°C and 100°C ambient - confirmed by MPS testing per IEC 62368-1 Annex G. This reflects stable core material permeability across the full operating range.

Can MPL-SE2512-R68 replace unshielded inductors in existing designs?

Yes, with layout verification - its semi-shielded construction reduces stray field by ~70% versus comparable unshielded parts, allowing tighter spacing to adjacent traces or components without EMI impact. Thermal performance may improve due to better heat dissipation through molded case.

What is the maximum allowable ripple current for continuous operation?

Maximum ripple current is not explicitly specified, but thermal limits define safe operation: peak-to-peak ripple should be kept ≤1.2 A (typical) when average current is 3.9 A to avoid exceeding ΔT = 40 K. Layout-dependent thermal resistance must be validated per application.

Does MPL-SE2512-R68 comply with halogen-free standards?

Yes - it is certified halogen-free per IEC 61249-2-21, with total bromine and chlorine content <900 ppm each, and fully compliant with RoHS Directive 2011/65/EU and REACH Regulation (EC) No. 1907/2006.