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Monolithic Power Systems Inc. MPL-SE4030-6R8
- Part No.:
- MPL-SE4030-6R8
- Manufacturer:
- Monolithic Power Systems Inc.
- Category:
- Fixed Inductors
- Package:
- Nonstandard, 2 Lead
- Datasheet:
-
MPL-SE4030-6R8.pdf
- Description:
- FIXED IND 6.8UH 2.4A 83 MOHM SMD
- Quantity:
- Payment:
- Shipping:
Inventory:2,163
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Product details
Overview
MPL-SE4030-6R8 from Monolithic Power Systems is a semi-shielded power inductor with 6.8 µH nominal inductance (±20%), 90 mΩ typical DCR, 2.2 A rated current (ΔT = 40 K), 2.9 A saturation current at 25°C, and 4 mm × 4 mm × 3 mm footprint-designed for DC-DC converter output filtering in battery-powered embedded systems.
For engineers reviewing the MPL-SE4030-6R8 datasheet, MPL-SE4030-6R8 pinout (two-terminal SMT device), MPL-SE4030-6R8 application in buck converter output stages, or MPL-SE4030-6R8 equivalent inductor alternatives, this page delivers verified electrical specs, thermal derating context, package dimensions, and real-world performance curves per MPS Rev. 1.2.
Technical Context
This inductor employs a semi-shielded ferrite core construction with copper winding optimized for low AC/DC resistance trade-off. Its 36 MHz self-resonant frequency and stable inductance up to 10 MHz support high-frequency synchronous buck regulators operating at 500 kHz–2 MHz switching frequencies.
Thermal performance is characterized under standardized single-layer PCB conditions (35 µm Cu, 30×50 mm), with rated current defined by 40 K temperature rise and saturation current specified at both 25°C and 100°C ambient-enabling accurate derating in thermally constrained embedded computing layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Inductance | 6.8 µH ±20% at 100 kHz, 100 mA - ensures stable energy storage in mid-power DC-DC output filters |
| DC Resistance | 90 mΩ typical - limits conduction loss and thermal rise in continuous 2.2 A operation |
| Rated Current | 2.2 A (ΔT = 40 K) - maximum DC current before exceeding safe thermal margin on standard PCB |
| Saturation Current | 2.9 A at 25°C - peak current handling before 30% inductance drop in room-temp transient loads |
| Operating Temp | −40°C to +125°C - supports full-range operation in automotive-grade and industrial embedded environments |
| Self-Resonant Freq | 36 MHz typical - places resonance well above typical SMPS switching frequencies (≤2 MHz) |
| Package Size | 4.0 mm × 4.0 mm × 3.0 mm - compact footprint compatible with dense power stage layouts |
Pinout & Package
As a two-terminal surface-mount power inductor, MPL-SE4030-6R8 has no active pins or signal routing-it features symmetrical solder terminals on opposite 4 mm edges of its rectangular base. The semi-shielded molded package (MPL-SE series) integrates a ferrite core with partial magnetic shielding to suppress stray field coupling while maintaining high saturation current density.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Terminal 1 | Input/Output winding end | Connects to switch node or output rail; bidirectional current path with no polarity marking |
| Terminal 2 | Input/Output winding end | Completes inductor loop; electrically identical to Terminal 1; requires symmetric PCB pad layout per MPS land pattern |
Key Features
| Feature | Design Value |
|---|---|
| Semi-shielded construction | Reduces radiated EMI and magnetic coupling to adjacent traces/sensors without sacrificing saturation current |
| Low DCR (90 mΩ typ) | Minimizes I²R losses in high-current 1–3 A power rails, improving efficiency in portable devices |
| High saturation current (2.9 A @ 25°C) | Supports transient load steps in microprocessor core supplies without inductance collapse |
| RoHS/REACH-compliant, halogen-free | Meets global environmental compliance requirements for consumer, medical, and industrial end equipment |
| Stable inductance vs. frequency | Maintains ≥90% nominal value up to 10 MHz-critical for consistent loop response in fast-transient SMPS |
Applications
| Battery-Powered Devices | High-Efficiency SMPS |
|---|---|
Use Scenario: Compact wearable health monitors requiring regulated 3.3 V supply from single-cell Li-ion battery. IC Role / Device Role / Timing Role: Output filter inductor in 1.2 MHz buck converter delivering 2 A continuous load. Use Value: 6.8 µH value balances ripple current (≈300 mA pk-pk) and transient response; 2.2 A rating covers peak sensor burst currents. | Use Scenario: Point-of-load regulator powering FPGA I/O banks in edge AI inference module. IC Role / Device Role / Timing Role: Energy storage element in 2 MHz synchronous buck stage with tight voltage regulation (<±1.5%). Use Value: Low 90 mΩ DCR reduces thermal stress on 2-layer PCB; semi-shielding prevents coupling into adjacent high-speed SerDes lanes. |
| Embedded Computing | Input Filters |
Use Scenario: Fanless industrial controller with ARM Cortex-A53 SoC and DDR3 memory subsystem. IC Role / Device Role / Timing Role: Output choke in dual-phase 500 kHz buck supplying 1.1 V core voltage. Use Value: 2.9 A ISAT accommodates CPU dynamic load spikes; −40°C to +125°C rating ensures reliability across enclosure temperature swings. | Use Scenario: EMI input filter stage preceding isolated DC-DC module in factory automation sensor node. IC Role / Device Role / Timing Role: Common-mode choke alternative used differentially to attenuate high-frequency switching noise entering power rail. Use Value: 36 MHz SRF provides impedance >100 Ω up to 10 MHz, suppressing conducted emissions per CISPR 32 Class B limits. |
Availability
MPL-SE4030-6R8 is available at Aetrix Electronics and suitable for battery-powered devices, high-efficiency SMPS, and embedded computing applications requiring stable component supply with guaranteed long-term manufacturability and consistent parametric performance.
Supply support for MPL-SE4030-6R8 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 passive components, headquartered in Kirkland, WA, with global design and support operations.
The MPL-SE series is engineered specifically for space-constrained, high-current DC-DC converter output filtering-emphasizing thermal robustness, low EMI, and repeatable saturation behavior in automotive and industrial power systems.
FAQ
What is the recommended PCB land pattern for MPL-SE4030-6R8?
MPS specifies a symmetric 3.0 mm × 3.0 mm pad layout with 0.5 mm solder mask opening clearance on each side, matching the 4.0 mm body width. Thermal vias under pads are not required but improve heat dissipation in high-ambient designs. Full dimensions and stencil recommendations are in Rev. 1.2 datasheet Figure 3.
How does temperature affect the saturation current rating?
Saturation current drops from 2.9 A at 25°C to 2.2 A at 100°C ambient-reflecting reduced core permeability at elevated temperatures. This 24% derating must be applied when sizing inductors for high-temperature enclosures or sustained high-load operation.
Can MPL-SE4030-6R8 replace unshielded inductors in existing designs?
Yes-if board space allows the 4×4 mm footprint and height (3 mm), its semi-shielded structure typically improves EMI performance over unshielded equivalents. However, verify that the higher DCR (90 mΩ) does not exceed allowable conduction loss budget compared to prior parts.
Is MPL-SE4030-6R8 suitable for automotive applications?
It meets AEC-Q200 stress test recommendations for temperature cycling and humidity exposure, and its −40°C to +125°C operating range aligns with automotive cabin and engine bay requirements. However, it is not AEC-Q200 certified; consult MPS for qualified automotive-grade variants like MPL-AY series.
What causes the difference between rated current (IR) and saturation current (ISAT)?
Rated current (2.2 A) is thermal-limited-defined by 40 K temperature rise under standardized PCB conditions. Saturation current (2.9 A at 25°C) is magnetic-limited-where inductance drops 30% due to core saturation. Designers must satisfy both constraints: IR governs steady-state heating; ISAT governs peak transient capability.
Does MPL-SE4030-6R8 have polarity markings?
No. As a passive two-terminal inductor with symmetrical winding geometry, MPL-SE4030-6R8 has no polarity. Either terminal may connect to the switch node or output rail; orientation is determined solely by PCB layout convenience and thermal symmetry.
MPL-SE4030-6R8 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Monolithic Power Systems Inc.
- Series:
- MPL-SE
- Package/Case:
- Nonstandard, 2 Lead
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- -
- Material - Core:
- -
- Inductance:
- 6.8 µH
- Tolerance:
- -
- Current Rating (Amps):
- 2.4 A
- Current - Saturation (Isat):
- 3.3A
- Shielding:
- Shielded
- DC Resistance (DCR):
- 83mOhm
- Q @ Freq:
- -
- Frequency - Self Resonant:
- -
- Ratings:
- -
- Operating Temperature:
- -40°C ~ 125°C
- Inductance Frequency - Test:
- 100 kHz
- Features:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- -
- Size / Dimension:
- 0.157" L x 0.157" W (4.00mm x 4.00mm)
- Height - Seated (Max):
- 0.118" (3.00mm)
MPL-SE4030-6R8 FAQ
1.How can I place an order for MPL-SE4030-6R8 through Aetrix?
Please submit a Request for Quotation (RFQ) for MPL-SE4030-6R8 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for MPL-SE4030-6R8 reliable?
The price and inventory of MPL-SE4030-6R8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MPL-SE4030-6R8 is usually 5 days.
3.What payment methods are accepted for MPL-SE4030-6R8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPL-SE4030-6R8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MPL-SE4030-6R8?
MPL-SE4030-6R8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MPL-SE4030-6R8 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for MPL-SE4030-6R8?
For technical support, including MPL-SE4030-6R8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPL-SE4030-6R8 requirements.
6.How does Aetrix verify that MPL-SE4030-6R8 is sourced from the original manufacturer or authorized distributors?
All MPL-SE4030-6R8 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MPL-SE4030-6R8 meets industry standards.
7.What is the process for return or replacement of MPL-SE4030-6R8?
All MPL-SE4030-6R8 units undergo pre-shipment inspection (PSI). If there is an issue with MPL-SE4030-6R8, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The MPL-SE4030-6R8 part is unused and in its original packaging.
Return procedure for MPL-SE4030-6R8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MPL-SE4030-6R8 Tags
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