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Nexperia USA Inc. PMEG4010EGW-QX
- Part No.:
- PMEG4010EGW-QX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Diodes
- Package:
- SOD-123
- Datasheet:
-
PMEG4010EGW-QX.pdf
- Description:
- DIODE SCHOTTKY 40V 1A SOD123
- Quantity:
- Payment:
- Shipping:
Inventory:8,635
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Product details
Overview
PMEG4010EGW-QX from Nexperia is a 40 V, 1 A low forward-voltage Schottky barrier rectifier in SOD123 package, featuring typ. VF = 540 mV at 1 A and typ. IR = 30 µA at 40 V, with integrated guard ring for stress protection and AEC-Q101 qualification for automotive reverse polarity protection and DC-DC conversion stages.
For engineers reviewing the PMEG4010EGW-QX datasheet, PMEG4010EGW-QX pinout, PMEG4010EGW-QX application, or PMEG4010EGW-QX equivalent, this device is selected for low-loss rectification in space-constrained, thermally sensitive automotive power rails where forward voltage drop and leakage current directly impact system efficiency and thermal budget.
Technical Context
This MEGA Schottky rectifier uses a planar silicon structure with an integrated guard ring to enhance ruggedness against voltage transients and electrostatic stress-critical for automotive 12 V battery-connected circuits. Its low VF enables high-efficiency operation in low-voltage DC-DC buck stages and reverse-battery protection paths.
The device operates across −55 °C to +150 °C junction temperature range, with Rth(j-sp) = 190 K/W (cathode pad) and Rth(j-a) = 310 K/W (free air), enabling reliable thermal performance on FR4 PCBs with standard or enhanced cathode copper area.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Voltage (VR) | 40 V - Maximum continuous blocking voltage; defines safe operating margin in 12 V/24 V automotive systems with load-dump transients. |
| Forward Current (IF) | 1 A - Continuous forward current rating at Tsp ≤ 55 °C; supports compact power rail designs without forced cooling. |
| Forward Voltage (VF) | 540 mV typ. at 1 A - Low conduction loss reduces heat generation and improves efficiency in high-duty-cycle rectifiers. |
| Reverse Current (IR) | 30 µA typ. at 40 V - Minimizes standby power loss in always-on automotive modules such as body control units. |
| Diode Capacitance (Cd) | 43 pF typ. at 1 V - Enables fast switching with low capacitive loading in high-frequency SMPS feedback paths. |
| Junction Temperature (Tj) | 150 °C max - Supports operation in under-hood environments without derating in most mounting configurations. |
Pinout & Package
Encapsulated in a compact SOD123 surface-mount plastic package (2.675 mm × 1.6 mm × 1.15 mm body), with cathode marked by a bar on the component top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Output terminal for forward conduction; connected to system ground or lower-potential rail in reverse polarity protection. |
| 2 | Anode (A) | Input terminal for forward conduction; connects to battery or input source; carries full load current during normal operation. |
Key Features
| Feature | Design Value |
|---|---|
| Guard ring integration | Enhances ESD and transient voltage robustness without external clamping components in automotive 12 V lines. |
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per JESD22-A114. |
| Low thermal resistance (Rth(j-sp)) | 190 K/W enables direct thermal coupling to PCB copper, reducing need for heatsinking in 1 A applications. |
| Small SOD123 footprint | Reduces board area by >40% vs. SMA packages while maintaining comparable current handling and thermal performance. |
Applications
| Automotive Reverse Polarity Protection | Low-Voltage DC-DC Buck Rectification |
|---|---|
|
Use Scenario: Protecting infotainment head units and ADAS ECUs from damage due to incorrect battery terminal connection during service. IC Role / Device Role / Timing Role: Unidirectional current-blocking diode placed in series with main power input rail. Use Value: Prevents catastrophic failure with only 540 mV forward drop, minimizing voltage loss and heat generation at 1 A peak load. |
Use Scenario: Output rectification in 5 V/3.3 V synchronous buck converters powering microcontrollers and sensors. IC Role / Device Role / Timing Role: Freewheeling path for inductor current during low-side switch off-time. Use Value: Enables >92% converter efficiency at light-to-moderate loads due to low VF and 43 pF capacitance limiting switching losses. |
| Automotive Body Control Module (BCM) Power Rail | Low-Power Industrial Sensor Node Supply |
|
Use Scenario: Always-on 12 V supply conditioning for door module controllers with wake-up capability. IC Role / Device Role / Timing Role: Input protection and isolation diode between battery and local LDO regulator input. Use Value: Limits standby current to <30 µA at 12 V reverse bias, extending battery life during vehicle sleep mode. |
Use Scenario: Power path management in battery-powered IoT sensor nodes requiring reverse-current blocking. IC Role / Device Role / Timing Role: Isolation diode between primary Li-ion cell and secondary backup coin cell or energy harvester output. Use Value: Maintains system uptime during battery swap or charging cycles with minimal quiescent loss and no external bias circuitry. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor NSS40100MUTBG | Same 40 V/1 A rating; VF = 550 mV typ., but higher IR = 100 µA typ. at 40 V; SOD-123 package. | Higher leakage may reduce battery life in always-on automotive modules; suitable for cost-sensitive non-automotive DC-DC. | Select when AEC-Q101 is not required and leakage tolerance >100 µA is acceptable. |
| Vishay VS-1EQH04-M3/84A | 45 V/1 A rating; VF = 520 mV typ.; AEC-Q101 qualified; larger SOD-123W package (3.7 mm × 1.7 mm). | Higher VR margin supports 24 V truck systems; larger footprint requires PCB layout change. | Select when 45 V blocking is needed or higher surge current (IFSM = 12 A) is critical for load dump immunity. |
Compared with NSS40100MUTBG and VS-1EQH04-M3/84A, PMEG4010EGW-QX delivers the lowest combination of leakage (30 µA) and thermal resistance (190 K/W) in standard SOD123, making it optimal for thermally constrained, low-quiescent automotive modules where both efficiency and reliability are prioritized.
Availability
PMEG4010EGW-QX is available at Aetrix Electronics and suitable for automotive reverse polarity protection, low-voltage DC-DC buck rectification, and body control module power rails requiring stable component supply with guaranteed long-term availability and traceable sourcing.
Supply support for PMEG4010EGW-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 discrete and logic devices, with leadership in automotive-qualified components and advanced packaging technologies.
This device belongs to Nexperia's MEGA Schottky rectifier product line, engineered specifically for low-loss, high-ruggedness power management in automotive and industrial applications where thermal efficiency and transient robustness are critical.
FAQ
Is PMEG4010EGW-QX suitable for 24 V automotive systems?
No-its 40 V reverse voltage rating provides sufficient margin for 12 V nominal systems with typical load-dump transients up to 35 V, but does not meet the 60 V+ requirement for sustained 24 V rail operation. For 24 V applications, consider Vishay VS-1EQH04-M3/84A (45 V) or ON Semi NSR40100MX (45 V), both AEC-Q101 qualified.
What is the maximum allowable soldering temperature profile for PMEG4010EGW-QX?
The device complies with JEDEC J-STD-020D reflow requirements for MSLE Level 1. Peak reflow temperature must not exceed 260 °C for ≤ 30 seconds, with ramp rates ≤ 3 °C/s before and after peak. Reflow footprint matches Figure 8 in the datasheet: 2.36 mm × 1.11 mm cathode pad with 0.81 mm solder mask opening.
Does the guard ring affect electrical parameters like VF or IR?
No-the guard ring is a structural feature surrounding the active junction to improve edge termination and voltage standoff; it does not alter forward conduction characteristics or reverse leakage. VF and IR values remain as specified in Tables 1 and 7, validated under pulsed test conditions to avoid self-heating effects.
Can PMEG4010EGW-QX replace a standard PN junction diode in an existing design?
Yes-with caution: its lower VF reduces conduction loss and heat generation, but its higher reverse leakage (vs. PN diodes) may increase standby current in always-on circuits. Verify that 30 µA IR at system voltage does not exceed allowable sleep-mode budget, especially in battery-backed automotive modules.
PMEG4010EGW-QX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- SOD-123
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 40 V
- Current - Average Rectified (Io):
- 1A
- Voltage - Forward (Vf) (Max) @ If:
- 640 mV @ 1 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 100 µA @ 40 V
- Capacitance @ Vr, F:
- 43pF @ 1V, 1MHz
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-123
- Operating Temperature - Junction:
- 150°C
PMEG4010EGW-QX FAQ
1.How can I place an order for PMEG4010EGW-QX through Aetrix?
Please submit a Request for Quotation (RFQ) for PMEG4010EGW-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 PMEG4010EGW-QX reliable?
The price and inventory of PMEG4010EGW-QX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PMEG4010EGW-QX is usually 5 days.
3.What payment methods are accepted for PMEG4010EGW-QX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PMEG4010EGW-QX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PMEG4010EGW-QX?
PMEG4010EGW-QX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PMEG4010EGW-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 PMEG4010EGW-QX?
For technical support, including PMEG4010EGW-QX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PMEG4010EGW-QX requirements.
6.How does Aetrix verify that PMEG4010EGW-QX is sourced from the original manufacturer or authorized distributors?
All PMEG4010EGW-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 PMEG4010EGW-QX meets industry standards.
7.What is the process for return or replacement of PMEG4010EGW-QX?
All PMEG4010EGW-QX units undergo pre-shipment inspection (PSI). If there is an issue with PMEG4010EGW-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 PMEG4010EGW-QX part is unused and in its original packaging.
Return procedure for PMEG4010EGW-QX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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