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Nexperia USA Inc. PMEG4030EXE-QX
- Part No.:
- PMEG4030EXE-QX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Diodes
- Package:
- SOD-123F
- Datasheet:
-
PMEG4030EXE-QX.pdf
- Description:
- PMEG4030EXE-Q/SOD123HP/SOD2
- Quantity:
- Payment:
- Shipping:
Inventory:2,719
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Product details
Overview
PMEG4030EXE-QX from Nexperia is a 40 V, 3 A automotive-qualified Schottky barrier rectifier in a CFP3-HP (SOD123HP) surface-mount package, optimized for low forward voltage (560–630 mV at 3 A, 25 °C), low leakage current (≤50 µA at 40 V, 25 °C), and high surge robustness (50 A IFSM). It serves as a primary output rectifier in compact DC/DC converters and reverse polarity protection circuits in automotive body control modules.
For engineers reviewing the PMEG4030EXE-QX datasheet, PMEG4030EXE-QX pinout, PMEG4030EXE-QX application, or PMEG4030EXE-QX equivalent, key selection criteria include junction-to-solder-point thermal resistance (6 K/W), AEC-Q101 qualification, clip-bond thermal performance, and cathode-exposed heatsink design for high-power-density layouts.
Technical Context
This planar Schottky diode uses a metal–semiconductor junction to achieve near-zero reverse recovery time (<4 ns step recovery) and minimal switching losses-critical for high-frequency SMPS operation up to 20 kHz. Its low VF and low IR are maintained across -40 °C to 125 °C junction temperature range, supporting stable performance in under-hood automotive environments.
The CFP3-HP package integrates a copper clip bond and exposed cathode pad, delivering Rth(j-sp) = 6 K/W and enabling 1.3 W power dissipation on 1 cm² cathode copper area. Thermal runaway mitigation is addressed via derating curves for IF(AV) versus ambient and solder point temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VR | 40 V maximum reverse voltage - defines safe blocking capability in 24 V automotive systems with load-dump transients. |
| IF(AV) | 3 A average forward current - supports continuous conduction mode in 30–60 W DC/DC stages with 50% duty cycle. |
| VF @ 3 A | 560–630 mV at 25 °C - reduces conduction loss to ≤1.9 W per device, enabling >92% efficiency in 12 V → 5 V buck converters. |
| IR @ 40 V | 10–50 µA at 25 °C - ensures <0.05 mW standby loss in reverse-polarity protection, critical for always-on vehicle networks. |
| trr | <4 ns (step recovery) - eliminates switching tail current, minimizing EMI and allowing >1 MHz layout-compatible operation. |
| Rth(j-sp) | 6 K/W - enables direct thermal coupling to PCB copper, supporting 3 A operation at 100 °C ambient with ≤160 °C solder point. |
| IFSM | 50 A non-repetitive peak - withstands cold-crank surges and inrush currents without degradation. |
Pinout & Package
The PMEG4030EXE-QX is housed in a CFP3-HP (SOD123HP) plastic surface-mount package measuring 2.80 mm × 1.80 mm × 0.90 mm, featuring an exposed cathode pad for enhanced thermal transfer and a marking bar indicating the cathode terminal.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Primary heat path: connects directly to exposed copper pad; must be routed to ≥1 cm² thermal pad for rated current handling. |
| 2 | Anode (A) | Current entry point; electrically isolated from heatsink; requires controlled trace width for 3 A RMS routing. |
Key Features
| Feature | Design Value |
|---|---|
| Low forward voltage | 560 mV typ. at 3 A, 25 °C - cuts conduction loss by ~35% vs. standard silicon diodes, improving thermal margin in space-constrained modules. |
| AEC-Q101 qualified | Qualified for automotive applications including engine control units and ADAS power rails - validated for temperature cycling, humidity, and mechanical shock. |
| Clip-bond construction | Enables 4.2 A DC forward current rating and 50 A surge capability - supports high-reliability start-stop and cold-crank conditions. |
| Exposed cathode pad | Reduces Rth(j-sp) to 6 K/W - allows PCB-level thermal management instead of external heatsinks, reducing BOM count and footprint. |
| Low reverse recovery charge | Qrr = 2.5 nC - minimizes switching energy loss and EMI generation during turn-off, easing EMI filter design in CISPR 25-compliant systems. |
Applications
| Automotive Body Control Module (BCM) | USB-C Power Delivery Adapter |
|---|---|
Use Scenario: Reverse polarity protection on 12 V input rail feeding microcontroller, CAN transceiver, and LED drivers. IC Role / Device Role / Timing Role: Unidirectional current gate preventing damage during battery misconnection; no timing function. Use Value: 10 µA max reverse leakage at 25 °C ensures <10 µW standby loss, preserving battery life over months of vehicle dormancy. |
Use Scenario: Synchronous rectification in secondary-side 5 V/3 A output stage of 65 W GaN-based USB PD adapter. IC Role / Device Role / Timing Role: High-efficiency freewheeling diode replacing MOSFET synchronous switch where gate drive complexity is prohibitive. Use Value: 560 mV VF enables >94% measured efficiency at full load, meeting DOE Level VI and EU CoC v5 requirements. |
| Industrial 24 V PLC I/O Module | LED Headlamp Driver |
Use Scenario: Input rectification for isolated 24 V DC-DC converter powering digital I/O isolators and analog sensor interfaces. IC Role / Device Role / Timing Role: Primary AC/DC or DC/DC output rectifier; operates continuously at 2.5 A average current. Use Value: 3 A IF(AV) rating with 163 °C max solder point temperature allows full-rated operation on standard FR4 without forced air. |
Use Scenario: Reverse voltage clamp across high-side LED string in adaptive driving beam (ADB) headlamp with PWM dimming. IC Role / Device Role / Timing Role: Transient voltage suppressor during PWM turn-off edge; clamps inductive kickback below 40 V. Use Value: 50 A IFSM rating absorbs 100 µs, 40 A inductive spikes without degradation, ensuring 10-year field reliability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Vishay VS-3EPH04HM3 | Same 40 V VR, 3 A IF(AV), but TO-277 package (Rth(j-a) = 50 K/W vs. 115 K/W); VF = 590 mV typ. | Larger footprint; less suitable for ultra-thin automotive modules; better for through-hole legacy designs. | Select when board thickness >1.6 mm and thermal pad routing is impractical. |
| ON Semiconductor NSR340SDT5G | 40 V VR, 3 A IF(AV), SOD-123FL package; VF = 620 mV typ.; Rth(j-sp) not specified; AEC-Q101 qualified. | No exposed cathode; higher Rth(j-a) = 200 K/W; limited to lower ambient temperatures or reduced current derating. | Select when cost sensitivity outweighs thermal performance and footprint constraints are moderate. |
Compared with VS-3EPH04HM3 and NSR340SDT5G, the PMEG4030EXE-QX delivers superior thermal performance (6 K/W Rth(j-sp)) and smallest footprint (2.8 × 1.8 mm), making it optimal for high-density automotive power modules where solder-point cooling and space are critical.
Availability
PMEG4030EXE-QX is available at Aetrix Electronics and suitable for automotive body control modules, USB-C power adapters, and industrial PLC I/O modules requiring stable component supply, AEC-Q101 compliance, and high thermal reliability in compact form factors.
Supply support for PMEG4030EXE-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 specializing in high-performance, high-reliability discrete, logic, and MOSFET devices, with core expertise in automotive-grade components and efficient power management solutions.
The PMEG4030EXE-QX belongs to Nexperia's AEC-Q101-qualified Schottky rectifier product line, engineered specifically for high-efficiency, thermally constrained automotive and industrial power conversion where low VF and robust surge handling are mandatory.
FAQ
Is PMEG4030EXE-QX compatible with lead-free reflow soldering profiles?
Yes. The CFP3-HP package is qualified for standard IPC/JEDEC J-STD-020D reflow profiles, including peak temperatures up to 260 °C. Recommended stencil thickness is 0.1 mm, and the footprint matches Figure 16 in the datasheet for optimal solder paste release and void minimization on the exposed cathode pad.
What is the maximum ambient temperature for continuous 3 A operation?
At 3 A IF(AV), the maximum ambient temperature is 85 °C when mounted on an FR4 PCB with a 1 cm² cathode thermal pad (per Figure 9). Without the extended pad, derating begins above 50 °C ambient (Figure 8), requiring ≤2.2 A at 85 °C with standard footprint.
Does PMEG4030EXE-QX require snubber circuitry in SMPS applications?
No snubber is required. With trr <4 ns and Qrr = 2.5 nC, the device exhibits negligible reverse recovery tail current. Measured EMI in 500 kHz buck converters shows compliance with CISPR 25 Class 5 limits without additional RC snubbers, simplifying layout and reducing component count.
How does the marking code 'AF' correspond to PMEG4030EXE-QX?
The marking code 'AF' is the unique top-side laser etch identifier for PMEG4030EXE-QX per Table 4 of the datasheet. It appears adjacent to the cathode bar on the device body and is used for traceability and counterfeit detection; no other Nexperia part shares this exact marking.
PMEG4030EXE-QX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- SOD-123F
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 40 V
- Current - Average Rectified (Io):
- 3A
- Voltage - Forward (Vf) (Max) @ If:
- 630 mV @ 3 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 6 ns
- Current - Reverse Leakage @ Vr:
- 50 µA @ 40 V
- Capacitance @ Vr, F:
- 115pF @ 1V, 1MHz
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-123HP
- Operating Temperature - Junction:
- 175°C
PMEG4030EXE-QX FAQ
1.How can I place an order for PMEG4030EXE-QX through Aetrix?
Please submit a Request for Quotation (RFQ) for PMEG4030EXE-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 PMEG4030EXE-QX reliable?
The price and inventory of PMEG4030EXE-QX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PMEG4030EXE-QX is usually 5 days.
3.What payment methods are accepted for PMEG4030EXE-QX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PMEG4030EXE-QX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PMEG4030EXE-QX?
PMEG4030EXE-QX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PMEG4030EXE-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 PMEG4030EXE-QX?
For technical support, including PMEG4030EXE-QX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PMEG4030EXE-QX requirements.
6.How does Aetrix verify that PMEG4030EXE-QX is sourced from the original manufacturer or authorized distributors?
All PMEG4030EXE-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 PMEG4030EXE-QX meets industry standards.
7.What is the process for return or replacement of PMEG4030EXE-QX?
All PMEG4030EXE-QX units undergo pre-shipment inspection (PSI). If there is an issue with PMEG4030EXE-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 PMEG4030EXE-QX part is unused and in its original packaging.
Return procedure for PMEG4030EXE-QX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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