Nexperia USA Inc. PMEG4010CPAS-QX
- Part No.:
- PMEG4010CPAS-QX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Diode Arrays
- Package:
- 3-UDFN Exposed Pad
- Datasheet:
-
PMEG4010CPAS-QX.pdf
- Description:
- DIODE ARR SCHOT 40V 1A DFN2020D3
- Quantity:
- Payment:

- Shipping:

Inventory:7,305
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Product details
Overview
PMEG4010CPAS-QX from Nexperia is a dual common-cathode Schottky barrier rectifier optimized for low-voltage, high-efficiency power conversion. It delivers 1 A average forward current per diode at ≤500 mV forward voltage (IF = 1 A, Tj = 25 °C), with 40 V reverse voltage rating and AEC-Q101 qualification-used in automotive DC-DC converters, mobile battery chargers, and LED backlighting circuits.
For engineers reviewing the PMEG4010CPAS-QX datasheet, PMEG4010CPAS-QX pinout, PMEG4010CPAS-QX application, or PMEG4010CPAS-QX equivalent, key selection criteria include ultra-low VF for thermal efficiency, DFN2020D-3 package thermal performance, common-cathode dual-diode topology for space-constrained buck/flyback outputs, and AEC-Q101 compliance for automotive-grade reliability.
Technical Context
This dual Schottky rectifier integrates two independent anodes (A1, A2) sharing a single exposed cathode pad (K) in a planar MEGA structure with guard ring stress protection. Its low VF stems from optimized metal-semiconductor junction design, enabling high conduction efficiency without minority-carrier storage delay.
The device operates with negligible reverse recovery time (trr = 3.5 ns typ.) and low capacitance (Cd = 50 pF at VR = 10 V), making it suitable for high-frequency switching topologies up to several MHz. Thermal performance is enhanced by the solderable side pads and thermally conductive cathode tab, achieving Rth(j-sp) = 12 K/W to the PCB solder point.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VF @ IF = 1 A | 440–500 mV - Enables ≥92% efficiency in 3.3 V/5 V buck converters at full load |
| VR | 40 V - Supports 24 V automotive input rails with 2× safety margin |
| IF(AV) per diode | 1 A - Sustains continuous output current in compact DC-DC modules |
| IR @ VR = 40 V | 12–55 µA - Minimizes standby leakage in battery-powered systems |
| trr | 3.5 ns - Eliminates switching loss penalties in >1 MHz SMPS designs |
| Cd @ VR = 10 V | 50 pF - Reduces high-frequency EMI and gate drive loading in synchronous rectification |
| Rth(j-sp) | 12 K/W - Enables direct thermal coupling to copper pour for <100 °C junction rise at 1 A |
Pinout & Package
Package: DFN2020D-3 (SOT1061D), 2.0 × 2.0 × 0.65 mm, ultra-thin leadless plastic with exposed cathode thermal pad and solderable side terminals.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode Diode 1 (A1) | Input node for first rectification path; connects to switch node in buck converter |
| 2 | Anode Diode 2 (A2) | Independent input node for second rectification path; enables dual-output or redundancy |
| 3 | Common Cathode (K) | Shared output/return path with exposed copper pad-primary thermal and electrical return to PCB ground plane |
Key Features
| Feature | Design Value |
|---|---|
| Low VF Schottky architecture | 440 mV typ. at 1 A reduces conduction loss by >30% vs. standard Schottkys |
| Guard ring stress protection | Prevents edge breakdown under transient overvoltage, improving long-term reliability in automotive environments |
| Exposed cathode thermal pad | Enables 960 mW power dissipation on FR4 with 1 cm² copper pad-critical for unheatsinked mobile designs |
| AEC-Q101 qualified | Validated for automotive temperature range (−55 °C to +150 °C) and mechanical stress requirements |
| AOI-compatible side pads | Solderable side terminals allow automated optical inspection of solder joint integrity post-reflow |
Applications
| Automotive DC-DC Converters | Mobile Battery Charging Circuits |
|---|---|
Use Scenario: Step-down conversion from 12 V/24 V battery rail to 3.3 V/5 V for infotainment ECUs and ADAS sensors. IC Role / Device Role / Timing Role: Secondary-side synchronous rectifier replacing MOSFETs in high-frequency buck converters. Use Value: 440 mV VF cuts conduction loss by 0.44 W per diode vs. 900 mV alternatives-reducing thermal load in sealed enclosures. |
Use Scenario: USB-C PD input stage rectification and reverse polarity protection in portable power banks. IC Role / Device Role / Timing Role: Dual-anode configuration allows shared cathode output for redundant input paths or dual-port charging. Use Value: 3.5 ns trr prevents shoot-through in 500 kHz–1 MHz charge pump topologies; 55 µA max IR preserves battery shelf life. |
| LED Backlight Drivers | Industrial SMPS Auxiliary Supplies |
Use Scenario: Boost converter output rectification for white LED strings in automotive instrument clusters. IC Role / Device Role / Timing Role: Common-cathode dual diode supports multi-string current balancing with single feedback loop. Use Value: 50 pF capacitance minimizes high-frequency ringing during PWM dimming transitions-reducing EMI filter size. |
Use Scenario: Auxiliary 12 V supply rectification in PLC power modules operating at −40 °C to +85 °C ambient. IC Role / Device Role / Timing Role: AEC-Q101 qualification ensures robustness against thermal cycling and vibration in factory automation gear. Use Value: Rth(j-a) = 70 K/W on ceramic PCB enables operation at full 1 A load without derating below 110 °C ambient. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| RB055LAM-40TR | Single diode, same VF (450 mV), but no common-cathode dual configuration; TO-252 package | Lacks integrated dual-anode functionality-requires two devices and larger PCB area | Select only when discrete layout flexibility outweighs space/thermal advantages of PMEG4010CPAS-QX |
| SS34H | Higher VF (550 mV min), 3 A rating, DO-214AB package; not AEC-Q101 qualified | Higher thermal mass but no automotive qualification; unsuitable for under-hood use | Acceptable for industrial non-automotive 24 V supplies where qualification is not required |
Compared with RB055LAM-40TR and SS34H, PMEG4010CPAS-QX uniquely combines dual-anode integration, ultra-thin DFN packaging, AEC-Q101 compliance, and sub-450 mV VF-enabling smaller, cooler, and automotive-certified power stages that neither alternative matches holistically.
Availability
PMEG4010CPAS-QX is available at Aetrix Electronics and suitable for automotive DC-DC converters, mobile battery charging circuits, and LED backlight drivers requiring stable component supply across extended temperature ranges and high-reliability production programs.
Supply support for PMEG4010CPAS-QX 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
Nexperia is a global semiconductor expert focused on high-volume, high-reliability essential semiconductors-including logic, discretes, MOSFETs, and ESD protection devices.
The PMEG4010CPAS-QX belongs to Nexperia's MEGA Schottky rectifier product line, engineered specifically for space- and efficiency-constrained automotive and portable power applications demanding low VF, fast switching, and robust thermal performance.
FAQ
What is the maximum junction temperature for continuous operation?
The absolute maximum junction temperature is 150 °C. For reliable continuous operation, the device must be mounted on a PCB with adequate copper area-minimum 1 cm² cathode pad on FR4 achieves 960 mW dissipation before reaching this limit. Derating is required above 110 °C ambient per Figure 9 in the datasheet.
Is the PMEG4010CPAS-QX pin-compatible with other DFN2020D-3 Schottky rectifiers?
No-pin compatibility is not guaranteed across manufacturers due to variations in internal die layout and terminal assignment. PMEG4010CPAS-QX uses Pin 1 = A1, Pin 2 = A2, Pin 3 = K. Always verify pinout using the official Nexperia footprint (SOT1061D) and avoid assumptions based on package outline alone.
Does the "-QX" suffix indicate automotive qualification?
Yes-the "-QX" suffix denotes AEC-Q101 qualification per Nexperia's part numbering convention. This confirms the device has passed stress tests for temperature cycling, humidity, mechanical shock, and high-temperature operating life required for automotive under-hood and cabin applications.
Can both diodes operate simultaneously at full 1 A each?
No-while each diode is rated for 1 A average forward current individually, simultaneous full-load operation exceeds the device's total power dissipation limit (1800 mW on ceramic PCB). At 1 A per diode, total power is ~0.88 W minimum (2 × 440 mV), which is within limits-but thermal design must ensure junction temperature stays ≤150 °C under worst-case ambient and mounting conditions.
PMEG4010CPAS-QX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- 3-UDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Diode Configuration:
- 1 Pair Common Cathode
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 40 V
- Current - Average Rectified (Io) (per Diode):
- 1A
- Voltage - Forward (Vf) (Max) @ If:
- 500 mV @ 1 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 3.5 ns
- Current - Reverse Leakage @ Vr:
- 55 µA @ 40 V
- Operating Temperature - Junction:
- 150°C
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DFN2020D-3
PMEG4010CPAS-QX FAQ
1.How can I place an order for PMEG4010CPAS-QX through Aetrix?
Please submit a Request for Quotation (RFQ) for PMEG4010CPAS-QX 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 PMEG4010CPAS-QX reliable?
The price and inventory of PMEG4010CPAS-QX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PMEG4010CPAS-QX is usually 5 days.
3.What payment methods are accepted for PMEG4010CPAS-QX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PMEG4010CPAS-QX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PMEG4010CPAS-QX?
PMEG4010CPAS-QX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PMEG4010CPAS-QX 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 PMEG4010CPAS-QX?
For technical support, including PMEG4010CPAS-QX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PMEG4010CPAS-QX requirements.
6.How does Aetrix verify that PMEG4010CPAS-QX is sourced from the original manufacturer or authorized distributors?
All PMEG4010CPAS-QX 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 PMEG4010CPAS-QX meets industry standards.
7.What is the process for return or replacement of PMEG4010CPAS-QX?
All PMEG4010CPAS-QX units undergo pre-shipment inspection (PSI). If there is an issue with PMEG4010CPAS-QX, 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 PMEG4010CPAS-QX part is unused and in its original packaging.
Return procedure for PMEG4010CPAS-QX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PMEG4010CPAS-QX Tags

-
BAV99-7-F
Diodes Incorporated

-
BAT54C-7-F
Diodes Incorporated

-
BAV99,215
Nexperia USA Inc.

-
BAT54SLT1G
onsemi

-
BAV70LT1G
onsemi

-
BAT54CLT1G
onsemi

-
BAT54S-7-F
Diodes Incorporated

-
BAV99LT1G
onsemi

-
BAT54S,215
Nexperia USA Inc.

-
BAS40-04LT1G
onsemi

-
MMBD1503-TP
Micro Commercial Co

-
BAV99WT1G
onsemi
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