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Nexperia USA Inc. PMEG4020EXE-QX
- Part No.:
- PMEG4020EXE-QX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Diodes
- Package:
- SOD-123F
- Datasheet:
-
PMEG4020EXE-QX.pdf
- Description:
- PMEG4020EXE-Q/SOD123HP/SOD2
- Quantity:
- Payment:
- Shipping:
Inventory:2,838
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Product details
Overview
PMEG4020EXE-QX from Nexperia is a 40 V, 2 A automotive-qualified Schottky barrier rectifier in CFP3-HP (SOD123HP) package, designed for low-loss DC-to-DC conversion and reverse polarity protection in space-constrained power rails. It delivers 500 mV typical forward voltage at 2 A and 25 °C, supports 50 A non-repetitive surge current, and operates up to 175 °C junction temperature.
For engineers reviewing the PMEG4020EXE-QX datasheet, PMEG4020EXE-QX pinout, PMEG4020EXE-QX application, or PMEG4020EXE-QX equivalent, key selection criteria include forward voltage vs. temperature stability, thermal resistance to solder point (6 K/W), AEC-Q101 qualification, and low reverse recovery charge (2.5 nC) in high-frequency SMPS designs.
Technical Context
This planar Schottky diode uses metal–semiconductor junction technology to achieve fast switching with near-zero reverse recovery time and minimal stored charge. Its clip-bond construction enhances thermal conduction from die to exposed cathode tab, enabling high power capability despite its 2.8 mm × 1.8 mm footprint.
The device is characterized for operation across -40 °C to +175 °C ambient, with reverse leakage tightly controlled (≤25 mA at 125 °C, VR = 40 V) and forward voltage exhibiting only +60 mV drift from -40 °C to 125 °C at 2 A - critical for thermally stable automotive power management.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VR (Reverse Voltage) | 40 V - Maximum blocking voltage before breakdown; sets usable input range in 24 V automotive systems. |
| IF(AV) (Avg. Forward Current) | 2 A - Sustained DC current under δ = 0.5 square wave at Tsp ≤ 168 °C; defines continuous output capability in buck converters. |
| VF @ 2 A, 25 °C | 500–570 mV - Low conduction loss directly reduces power dissipation and improves efficiency in high-current paths. |
| IR @ 40 V, 125 °C | 6–25 mA - Controlled leakage ensures minimal standby loss in always-on vehicle modules. |
| Rth(j-sp) | 6 K/W - Thermal resistance from junction to cathode solder point; enables direct thermal coupling to PCB copper pour for passive cooling. |
| Qrr | 2.5 nC - Low reverse recovery charge minimizes switching losses and EMI in >100 kHz SMPS topologies. |
| IFSМ (Surge Current) | 50 A - Withstands 8.3 ms half-sine transients, supporting load dump and cold-crank robustness per ISO 16750-2. |
Pinout & Package
Encapsulated in CFP3-HP (SOD123HP) surface-mount package: 2.80 mm × 1.80 mm × 0.90 mm body with exposed cathode thermal pad. Standard footprint per Figure 16 (Nexperia doc 23-11-29), optimized for FR4 PCB with 1 cm² cathode copper area.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Primary current exit path and thermal interface; marked by bar on package; connects to ground or return rail and large copper pour. |
| 2 | Anode (A) | Current entry point; connects to input source (e.g., battery or switch node); no thermal function. |
Key Features
| Feature | Design Value |
|---|---|
| Low VF at high current | 500 mV typ. @ 2 A, 25 °C - Reduces I²R loss by >40% vs. standard silicon diodes in 12–24 V DC/DC stages. |
| AEC-Q101 qualified | Qualified for automotive Grade 0 (-40 °C to +175 °C) - Enables use in engine control units, ADAS power supplies, and infotainment without derating. |
| Clip-bond thermal design | 6 K/W Rth(j-sp) - Delivers 2.2× lower thermal resistance than standard SOD123, allowing 1.3 W power dissipation at 25 °C ambient. |
| High surge robustness | 50 A IFSM (8.3 ms) - Survives ISO 16750-2 load dump pulses without degradation or failure. |
| Low Qrr & trr | 2.5 nC Qrr, 4 ns trr (step) - Enables clean turn-off in synchronous rectifier and high-frequency flyback designs without snubbers. |
Applications
| Automotive Body Control Module (BCM) | USB-C Power Delivery Input Stage |
|---|---|
|
Use Scenario: Reverse polarity protection at 12 V main supply input of BCM, handling intermittent load dumps and cold-crank events. IC Role / Device Role / Timing Role: Unidirectional blocking diode placed between battery connector and primary DC/DC converter input. Use Value: 40 V VR rating accommodates 36 V transients; 50 A IFSM withstands ISO 16750-2 pulse 4a; low VF minimizes voltage drop during cranking. |
Use Scenario: Input rectification and overvoltage clamping in USB-C PD 3.0 compliant 20 V input stage for portable medical devices. IC Role / Device Role / Timing Role: High-speed freewheeling diode in active clamp flyback or buck-boost controller front-end. Use Value: 2.5 nC Qrr and 4 ns trr reduce switching loss and EMI; 175 °C Tj rating supports sealed enclosure thermal profiles. |
| Industrial 24 V PLC I/O Power Rail | LED Driver Secondary Side Rectification |
|
Use Scenario: Low-loss 24 V DC input rectification for programmable logic controller I/O modules operating in hot industrial cabinets. IC Role / Device Role / Timing Role: Main input rectifier feeding isolated DC/DC converter; handles continuous 1.8 A load with <100 mW conduction loss. Use Value: 6 K/W Rth(j-sp) allows direct mounting to 1 cm² copper, maintaining Tj < 125 °C at 70 °C ambient without heatsink. |
Use Scenario: Secondary-side synchronous rectification replacement in constant-current LED drivers for automotive lighting. IC Role / Device Role / Timing Role: Freewheeling diode in boost-derived LED current regulator; conducts pulsed 1.5 A peak current at 200 kHz. Use Value: 500 mV VF at 2 A cuts conduction loss by 65% vs. 1N5822; low IR at 125 °C prevents thermal runaway in enclosed headlamp assemblies. |
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-2EDH04-M3/54 | Same 40 V VR, 2 A IF(AV), but SOD-123 package (Rth(j-a) = 200 K/W vs. 6 K/W j-sp); no AEC-Q101 certification. | Limited to commercial-grade, lower-power applications due to higher thermal resistance and lack of automotive qualification. | Select when cost sensitivity outweighs thermal performance and automotive compliance requirements. |
| ON Semiconductor NSR20F40NXT5G | 40 V VR, 2 A IF(AV), same SOD123HP package, AEC-Q101 qualified; VF = 520–600 mV @ 2 A - 20–30 mV higher than PMEG4020EXE-QX. | Suitable for identical automotive applications but exhibits marginally higher conduction loss and slightly reduced efficiency at full load. | Choose when dual-sourcing is required and minor VF penalty is acceptable for supply chain flexibility. |
Compared with VS-2EDH04-M3/54 and NSR20F40NXT5G, PMEG4020EXE-QX offers the lowest VF at 2 A and best thermal path to PCB (6 K/W), making it optimal for thermally constrained, high-efficiency automotive power rails where AEC-Q101 compliance is mandatory.
Availability
PMEG4020EXE-QX is available at Aetrix Electronics and suitable for automotive body control modules, USB-C PD input stages, and industrial 24 V PLC power rails requiring stable component supply, long-term lifecycle support, and AEC-Q101-compliant sourcing.
Supply support for PMEG4020EXE-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 ICs, with leadership in automotive-qualified components and advanced packaging technologies.
The PMEG4020EXE-QX belongs to Nexperia's AEC-Q101-qualified Schottky rectifier product line, engineered specifically for high-efficiency, thermally demanding automotive and industrial power conversion where low VF, robust surge capability, and precise thermal management are critical.
FAQ
Is PMEG4020EXE-QX pin-compatible with standard SOD-123 diodes?
No - PMEG4020EXE-QX uses the CFP3-HP (SOD123HP) package, which has an exposed cathode thermal pad and tighter dimensional tolerances (2.80 mm × 1.80 mm) versus legacy SOD-123 (2.90 mm × 1.80 mm). Footprint must follow Nexperia's recommended land pattern (Fig. 16, doc 23-11-29) to ensure thermal and mechanical reliability.
What is the maximum continuous ambient temperature for 2 A operation?
At 2 A average forward current and δ = 0.5 duty cycle, PMEG4020EXE-QX supports up to 70 °C ambient on FR4 PCB with standard footprint (Fig. 8), or up to 105 °C ambient when using a 1 cm² cathode copper pad (Fig. 9). Junction temperature remains ≤175 °C in both cases.
Does PMEG4020EXE-QX require a heatsink for 2 A operation?
No external heatsink is required. With proper PCB layout - including ≥1 cm² copper area connected to the cathode pad - the device achieves 1.3 W total power dissipation at 25 °C ambient (Ptot = 1.3 W), sufficient for 2 A at typical VF. Thermal performance relies entirely on PCB copper, not air convection.
How does the 50 A IFSM rating translate to real-world surge immunity?
The 50 A non-repetitive peak forward current (tp = 8.3 ms, half-sine) corresponds directly to ISO 16750-2 Pulse 4a (load dump), enabling reliable operation in 12 V automotive systems without additional TVS or crowbar protection. It reflects single-event survivability, not repetitive capability.
PMEG4020EXE-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):
- 2A
- Voltage - Forward (Vf) (Max) @ If:
- 570 mV @ 2 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
PMEG4020EXE-QX FAQ
1.How can I place an order for PMEG4020EXE-QX through Aetrix?
Please submit a Request for Quotation (RFQ) for PMEG4020EXE-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 PMEG4020EXE-QX reliable?
The price and inventory of PMEG4020EXE-QX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PMEG4020EXE-QX is usually 5 days.
3.What payment methods are accepted for PMEG4020EXE-QX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PMEG4020EXE-QX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PMEG4020EXE-QX?
PMEG4020EXE-QX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PMEG4020EXE-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 PMEG4020EXE-QX?
For technical support, including PMEG4020EXE-QX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PMEG4020EXE-QX requirements.
6.How does Aetrix verify that PMEG4020EXE-QX is sourced from the original manufacturer or authorized distributors?
All PMEG4020EXE-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 PMEG4020EXE-QX meets industry standards.
7.What is the process for return or replacement of PMEG4020EXE-QX?
All PMEG4020EXE-QX units undergo pre-shipment inspection (PSI). If there is an issue with PMEG4020EXE-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 PMEG4020EXE-QX part is unused and in its original packaging.
Return procedure for PMEG4020EXE-QX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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