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Monolithic Power Systems Inc. MPL-AT2010-R68
- Part No.:
- MPL-AT2010-R68
- Manufacturer:
- Monolithic Power Systems Inc.
- Category:
- Fixed Inductors
- Package:
- 2-SMD, J-Lead
- Datasheet:
-
MPL-AT2010-R68.pdf
- Description:
- FIXED IND 680NH 3.5A 41 MOHM SMD
- Quantity:
- Payment:
- Shipping:
Inventory:2,965
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Product details
Overview
MPL-AT2010-R68 from Monolithic Power Systems is a low-profile molded power inductor with 0.68 µH nominal inductance (±20%), 41 mΩ typical DCR, 3.6 A rated current (ΔT = 40 K), and 4.9 A saturation current at both 25°C and 100°C ambient - designed for high-frequency DC-DC converters in space-constrained portable electronics.
For engineers reviewing the MPL-AT2010-R68 datasheet, MPL-AT2010-R68 pinout (two-terminal SMT device), MPL-AT2010-R68 application in buck converter output filters or battery-powered SMPS, or MPL-AT2010-R68 equivalent for compact 2.0×1.6×1.0 mm molded inductors with soft saturation and ≤50 mΩ max DCR, this page delivers verified electrical, thermal, and mechanical specifications aligned with MPS Rev. 1.2 documentation.
Technical Context
This molded inductor employs composite magnetic material with distributed air gap to achieve soft saturation behavior and stable inductance over temperature (–40°C to +125°C). Its 96 MHz typical self-resonant frequency supports operation in switching regulators up to ~3 MHz without significant impedance roll-off.
Thermal performance is characterized on a single-layer 30×50 mm PCB with 35 µm copper; actual temperature rise depends on board layout, adjacent heat sources, and trace width - design validation requires empirical thermal testing under target load conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Inductance | 0.68 µH ±20% at 100 kHz, 100 mA - ensures stable energy storage in high-frequency buck/boost stages. |
| DC Resistance | 41 mΩ typical, ≤50 mΩ max - limits conduction loss and thermal rise in continuous 3.6 A operation. |
| Rated Current | 3.6 A (ΔT = 40 K) - defines maximum DC current before thermal derating in standard PCB mounting. |
| Saturation Current | 4.9 A at both 25°C and 100°C - indicates robust core material with minimal inductance drop under peak transient loads. |
| Self-Resonant Frequency | 96 MHz typical - enables use in >1 MHz switchers without entering capacitive impedance region. |
| Operating Temperature | –40°C to +125°C (including self-heating) - supports automotive cabin, industrial, and wearable environments. |
| Package Dimensions | 2.0 × 1.6 × 1.0 mm - fits ultra-thin profiles where height clearance is limited to ≤1.0 mm. |
Pinout & Package
Two-terminal surface-mount device in molded composite package; no internal leads or polarity marking beyond dot indicating start of winding. Land pattern per MPS recommended footprint (2.50 × 1.90 mm pad area, 0.50 mm spacing).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Terminal 1 | Input/Source node | Connects to switch node or input rail; dot-marked end defines winding start for consistent EMI orientation. |
| Terminal 2 | Output/Load node | Connects to output capacitor or load; symmetric construction allows bidirectional current flow without functional impact. |
Key Features
| Feature | Design Value |
|---|---|
| Low profile height | 1.0 mm max - enables integration into <1.2 mm total stack-up designs such as smartwatches and TWS earbuds. |
| Soft saturation characteristic | Inductance drops gradually to 70% at ISAT - prevents abrupt regulation loss during overload transients. |
| Stable high-temp performance | No degradation in L or RDC up to +125°C ambient - eliminates need for thermal derating in sealed enclosures. |
| Low audible noise | Molded construction suppresses magnetostrictive vibration - critical for noise-sensitive consumer audio and medical wearables. |
| Halogen-free & RoHS/REACH-compliant | Meets IPC-1752A Class 2 reporting and EU regulatory requirements for commercial and medical end equipment. |
Applications
| Battery-Powered Wearables | High-Frequency IoT SMPS |
|---|---|
Use Scenario: Step-down conversion in compact fitness trackers with Li-ion battery input (3.0–4.2 V) and 1.8 V/3.3 V system rails. IC Role / Device Role / Timing Role: Output filter inductor for 2–3 MHz buck regulator ICs (e.g., MP2155, MPQ4571), smoothing ripple current while maintaining tight size constraints. Use Value: 1.0 mm height enables full PCB assembly under curved display glass; 4.9 A ISAT handles pulse currents from BLE/Wi-Fi burst transmission without saturation-induced voltage droop. | Use Scenario: Powering ultra-low-power microcontrollers (e.g., nRF52840, ESP32-WROOM-32) in sensor nodes operating at 3.3 V with intermittent 100 ms transmit bursts. IC Role / Device Role / Timing Role: Energy storage element in synchronous buck converter delivering regulated 3.3 V from 4.2 V battery or 5 V USB supply. Use Value: 96 MHz SRF ensures minimal phase shift and impedance stability across 1–3 MHz switching frequencies; low DCR (<50 mΩ) extends battery runtime by reducing I²R losses during active duty cycles. |
| Portable Medical Devices | Input Filter for USB-PD Adapters |
Use Scenario: Power conditioning in handheld diagnostic tools requiring clean, low-noise 5 V/3.3 V rails for analog front-ends and ADCs. IC Role / Device Role / Timing Role: Low-EMI output choke in low-noise buck converter stage, placed adjacent to sensitive signal circuitry. Use Value: Molded construction eliminates coil whine during variable load conditions; stable inductance over –40°C to +85°C ensures calibration integrity across field operating environments. | Use Scenario: Input EMI filtering in compact 20–30 W USB-PD wall adapters using GaN FETs switching at 500 kHz–1 MHz. IC Role / Device Role / Timing Role: Common-mode choke alternative in differential-mode input LC filter preceding primary-side controller (e.g., MPX2002). Use Value: 0.68 µH value optimizes attenuation of 500 kHz–2 MHz switching harmonics; 2.0×1.6 mm footprint allows dense layout without compromising creepage/clearance to primary-side isolation barrier. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar low-profile molded inductor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TDK VLS201010ET-680M | Same 0.68 µH ±20%, but 45 mΩ typical DCR and 3.5 A IR - slightly higher loss and lower thermal margin. | Rated for +105°C max ambient (vs. +125°C), limiting use in sealed industrial enclosures. | Select when footprint compatibility (2.0×1.0×1.0 mm) is prioritized over thermal headroom. |
| Coilcraft XAL2010-681MEC | 0.68 µH ±20%, 38 mΩ typical DCR, 3.8 A IR - lower loss but 4.2 A ISAT (25°C), less robust under sustained peak load. | Higher Q-factor above 10 MHz, but softer saturation knee may reduce transient response predictability. | Prefer for high-efficiency, low-noise applications where peak current remains below 4.2 A and layout permits 2.2×2.0 mm area. |
Compared with VLS201010ET-680M and XAL2010-681MEC, MPL-AT2010-R68 uniquely balances 4.9 A saturation current, +125°C operation, and 1.0 mm height - making it optimal for thermally aggressive, space-limited portable designs where reliability under burst-load conditions is critical.
Availability
MPL-AT2010-R68 is available at Aetrix Electronics and suitable for battery-powered wearables, high-frequency IoT SMPS, and portable medical devices requiring stable component supply with guaranteed tape-and-reel delivery and full traceability.
Supply support for MPL-AT2010-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 passive components, headquartered in Kirkland, WA, with global design and support centers.
The MPL-AT series targets miniaturized, high-efficiency DC-DC conversion in consumer and industrial edge devices - engineered for low-profile integration, thermal resilience, and predictable saturation behavior in modern high-switching-frequency power stages.
FAQ
What is the maximum allowable temperature rise for MPL-AT2010-R68 under rated current?
The rated current of 3.6 A is defined as the DC current causing a 40 K temperature rise above ambient when mounted on a single-layer 30×50 mm PCB with 35 µm copper. Actual rise varies with PCB layout, copper weight, airflow, and proximity to heat sources - thermal simulation or IR imaging is recommended for final design validation.
Does MPL-AT2010-R68 have polarity or winding direction sensitivity?
Yes - the dot marking indicates the start of winding and should be oriented consistently across parallel inductors to minimize mutual coupling effects. While bidirectional current flow is electrically permissible, aligning dot markings improves EMI predictability in multi-phase or tightly spaced layouts.
Can MPL-AT2010-R68 be used in automotive applications?
It meets AEC-Q200 stress test recommendations for temperature cycling and humidity exposure, and its –40°C to +125°C operating range covers most passenger cabin and engine bay fringe locations. However, it is not AEC-Q200 qualified out-of-box - qualification requires additional component-level testing per customer program requirements.
How does the 4.9 A saturation current at 100°C compare to typical ferrite-core inductors?
Most standard ferrite inductors exhibit ≥20% reduction in ISAT between 25°C and 100°C due to permeability roll-off. MPL-AT2010-R68 maintains identical 4.9 A ISAT at both temperatures, confirming optimized composite core formulation that resists thermal demagnetization - critical for sustained high-load operation in sealed enclosures.
Is reflow soldering compatible with MPL-AT2010-R68's molded construction?
Yes - the epoxy-molded body withstands standard lead-free reflow profiles (peak 260°C for ≤30 seconds) without delamination or parameter shift. MPS specifies JEDEC J-STD-020D-compliant moisture sensitivity level (MSL) 1, eliminating bake requirements prior to assembly.
What is the significance of "soft saturation" in this inductor's performance?
Soft saturation means inductance declines gradually (to 70% at ISAT) rather than collapsing abruptly. This behavior prevents sudden control-loop instability in current-mode regulators and reduces output voltage overshoot during load transients - especially valuable in systems with fast dynamic loads like wireless transceivers.
Does MPL-AT2010-R68 support automated optical inspection (AOI) after placement?
Yes - the uniform black molded body and clear dot marking provide high contrast for AOI systems. The flat top surface and consistent dimensional tolerances (±0.30 mm) enable reliable fiducial-based alignment and solder-joint inspection in high-speed SMT lines.
MPL-AT2010-R68 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Monolithic Power Systems Inc.
- Series:
- MPL-AT
- Package/Case:
- 2-SMD, J-Lead
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Molded
- Material - Core:
- -
- Inductance:
- 680 nH
- Tolerance:
- -
- Current Rating (Amps):
- 3.5 A
- Current - Saturation (Isat):
- 4.9A
- Shielding:
- Unshielded
- DC Resistance (DCR):
- 41mOhm
- 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:
- 0.079" L x 0.063" W (2.00mm x 1.60mm)
- Height - Seated (Max):
- 0.039" (1.00mm)
MPL-AT2010-R68 FAQ
1.How can I place an order for MPL-AT2010-R68 through Aetrix?
Please submit a Request for Quotation (RFQ) for MPL-AT2010-R68 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-AT2010-R68 reliable?
The price and inventory of MPL-AT2010-R68 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MPL-AT2010-R68 is usually 5 days.
3.What payment methods are accepted for MPL-AT2010-R68?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPL-AT2010-R68 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MPL-AT2010-R68?
MPL-AT2010-R68 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MPL-AT2010-R68 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-AT2010-R68?
For technical support, including MPL-AT2010-R68 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPL-AT2010-R68 requirements.
6.How does Aetrix verify that MPL-AT2010-R68 is sourced from the original manufacturer or authorized distributors?
All MPL-AT2010-R68 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-AT2010-R68 meets industry standards.
7.What is the process for return or replacement of MPL-AT2010-R68?
All MPL-AT2010-R68 units undergo pre-shipment inspection (PSI). If there is an issue with MPL-AT2010-R68, 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-AT2010-R68 part is unused and in its original packaging.
Return procedure for MPL-AT2010-R68:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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