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Nexperia USA Inc. PMEG2005EGW-QX
- Part No.:
- PMEG2005EGW-QX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Diodes
- Package:
- SOD-123
- Datasheet:
-
PMEG2005EGW-QX.pdf
- Description:
- DIODE SCHOTTKY 20V 500MA SOD123
- Quantity:
- Payment:
- Shipping:
Inventory:2,259
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Product details
Overview
PMEG2005EGW-QX from Nexperia is a 20 V, 0.5 A planar Schottky barrier rectifier in SOD123 package, featuring low forward voltage (355 mV typ. at 500 mA), low reverse leakage (40 µA typ. at 20 V), and AEC-Q101 qualification for automotive use - deployed in reverse polarity protection and DC-DC converter output stages.
For engineers reviewing the PMEG2005EGW-QX datasheet, PMEG2005EGW-QX pinout, PMEG2005EGW-QX application, or PMEG2005EGW-QX equivalent, this page delivers verified electrical parameters, thermal resistance values (Rth(j-sp) = 29 K/W), junction temperature limit (150 °C), and automotive-grade reliability context without generic assumptions.
Technical Context
This MEGA Schottky diode uses a planar structure with integrated guard ring for enhanced ESD and surge robustness. Its low VF stems from optimized metal-semiconductor interface design, enabling high efficiency in low-voltage (<20 V) power paths.
Thermal performance is defined by two key metrics: Rth(j-a) = 310 K/W (free air) and Rth(j-sp) = 29 K/W (to cathode solder point), indicating strong thermal coupling to PCB when mounted on a 1 cm² cathode pad per JEDEC-standard FR4 layout.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Voltage (VR) | 20 V maximum - sets upper limit for safe blocking in 12 V automotive or 5–15 V DC-DC rails. |
| Forward Current (IF) | 0.5 A continuous - supports sustained operation in compact power converters without forced cooling. |
| Forward Voltage (VF) | 355 mV typical at 500 mA - reduces conduction loss by ~40 % vs. standard silicon diodes in same footprint. |
| Reverse Leakage (IR) | 40 µA typical at 20 V - minimizes standby power loss in battery-powered systems. |
| Junction Temperature (Tj) | 150 °C max - enables reliable operation in under-hood automotive environments. |
| Diode Capacitance (Cd) | 66–80 pF at 1 V - low capacitance preserves switching speed in high-frequency (>1 MHz) SMPS designs. |
Pinout & Package
Encapsulated in SOD123 surface-mount plastic package (2.675 mm × 1.6 mm × 1.15 mm body), with cathode marked by a bar on the device top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Connected to load/ground side; marking bar identifies this terminal - critical for correct polarity in reverse protection circuits. |
| 2 | Anode (A) | Connected to input/power source side; current flows anode-to-cathode during forward conduction. |
Key Features
| Feature | Design Value |
|---|---|
| Guard ring integration | Prevents edge breakdown under mechanical stress or voltage transients - improves long-term reliability in automotive vibration environments. |
| AEC-Q101 qualification | Validated for automotive discrete applications including engine control units and body electronics - meets stress test requirements for temperature cycling, HTRB, and ESD. |
| Low Rth(j-sp) | 29 K/W to solder point - enables efficient heat transfer to PCB copper, supporting 0.5 A operation without heatsink on standard FR4. |
| Small SOD123 footprint | 2.675 mm × 1.6 mm area - allows high-density placement in space-constrained modules like ADAS camera ECUs or infotainment power supplies. |
Applications
| Automotive Reverse Polarity Protection | Low-Voltage DC-DC Converter Output |
|---|---|
Use Scenario: Protecting 12 V vehicle electronics (e.g., telematics modules) against incorrect battery connection. IC Role / Device Role / Timing Role: Unidirectional current gate placed between battery input and system rail - conducts only when polarity is correct. Use Value: Prevents catastrophic damage to downstream ICs using only 355 mV forward drop, minimizing voltage loss across protection path. |
Use Scenario: Output rectification in 5 V/0.5 A buck converter powering microcontrollers in door control units. IC Role / Device Role / Timing Role: Synchronous rectifier replacement - provides fast, low-loss unidirectional conduction during freewheeling phase. Use Value: Enables >92 % efficiency at light loads due to low VF and 40 µA IR, reducing thermal load in sealed enclosures. |
| Low-Power IoT Sensor Node Supply | USB-C Power Path Protection |
Use Scenario: Input protection for coin-cell–powered environmental sensors operating at 3.3 V with <100 µA sleep current. IC Role / Device Role / Timing Role: Reverse-blocking element in energy harvesting or battery backup path - blocks backflow while adding minimal quiescent loss. Use Value: 40 µA reverse leakage ensures <0.13 µW standby loss at 3.3 V, preserving multi-year battery life. |
Use Scenario: Preventing backfeed from USB-C port into host system during accessory insertion or cable swap. IC Role / Device Role / Timing Role: Isolation diode in VBUS path - blocks reverse current while maintaining low forward impedance during normal 5 V delivery. Use Value: 355 mV VF limits voltage drop to <10 % of nominal 5 V, ensuring compliant downstream voltage under 500 mA load. |
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-2EDH02HM3/85A | Same 20 V/0.5 A rating but higher VF (450 mV typ.), larger SOD-123W package (3.0 × 1.8 mm). | Marginally lower efficiency in thermally constrained layouts due to higher conduction loss and reduced thermal pad area. | Select if legacy board layout accommodates wider footprint and higher VF is acceptable for cost-sensitive non-automotive use. |
| ON Semiconductor NSR0230P2T5G | Lower 30 V rating, same 0.5 A, slightly higher VF (370 mV typ.), identical SOD-123 footprint. | Not AEC-Q101 qualified - unsuitable for automotive; better suited for consumer USB charging accessories. | Choose only for non-automotive applications where 30 V margin is needed and automotive qualification is unnecessary. |
Compared with VS-2EDH02HM3/85A and NSR0230P2T5G, PMEG2005EGW-QX delivers the lowest forward voltage (355 mV) in a standard SOD123, combined with AEC-Q101 certification - making it the optimal choice for space- and efficiency-critical automotive power rails requiring proven reliability.
Availability
PMEG2005EGW-QX is available at Aetrix Electronics and suitable for automotive reverse polarity protection, low-voltage DC-DC converter output rectification, and low-power IoT sensor node supply requiring stable component supply and full traceability.
Supply support for PMEG2005EGW-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 - delivering discrete, logic, and MOSFET solutions for automotive, industrial, and mobile markets.
PMEG2005EGW-QX belongs to Nexperia's MEGA Schottky rectifier product line, engineered specifically for low-loss, high-reliability power conversion in automotive and portable electronics where thermal efficiency and AEC-Q101 compliance are mandatory.
FAQ
What is the maximum junction temperature for PMEG2005EGW-QX?
The absolute maximum junction temperature is 150 °C, validated per AEC-Q101 stress testing. Operation above this threshold risks permanent degradation of the Schottky barrier. Derating is required above 125 °C ambient when dissipating >300 mW - consult thermal curves in Figure 1 and 2 of the datasheet for pulse duration-dependent limits.
Is PMEG2005EGW-QX suitable for synchronous rectification?
No - it is a passive Schottky rectifier, not a synchronous MOSFET controller or driver. It functions as a unidirectional conduction device only. For synchronous rectification, a dedicated gate driver IC paired with a low-RDS(on) MOSFET is required; this diode serves as a self-commutated alternative where simplicity and cost outweigh peak efficiency needs.
Does the SOD123 package include a thermal pad?
No - the SOD123 package has no exposed thermal pad. Thermal dissipation relies entirely on solder joint conduction through the cathode (Pin 1) to a dedicated 1 cm² copper pad on FR4 PCB, achieving Rth(j-sp) = 29 K/W. Standard footprint mounting without extended pad yields Rth(j-a) = 190 K/W.
How does the guard ring improve reliability in automotive use?
The integrated guard ring mitigates electric field crowding at the die edge, preventing premature avalanche breakdown during load dump transients (ISO 7637-2 Pulse 5a) or thermal cycling-induced mechanical stress. This extends lifetime in under-hood environments where temperature swings exceed 100 °C and vibration accelerations reach 30 g.
PMEG2005EGW-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):
- 20 V
- Current - Average Rectified (Io):
- 500mA
- Voltage - Forward (Vf) (Max) @ If:
- 390 mV @ 500 mA
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 200 µA @ 20 V
- Capacitance @ Vr, F:
- 66pF @ 1V, 1MHz
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-123
- Operating Temperature - Junction:
- 150°C
PMEG2005EGW-QX FAQ
1.How can I place an order for PMEG2005EGW-QX through Aetrix?
Please submit a Request for Quotation (RFQ) for PMEG2005EGW-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 PMEG2005EGW-QX reliable?
The price and inventory of PMEG2005EGW-QX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PMEG2005EGW-QX is usually 5 days.
3.What payment methods are accepted for PMEG2005EGW-QX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PMEG2005EGW-QX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PMEG2005EGW-QX?
PMEG2005EGW-QX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PMEG2005EGW-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 PMEG2005EGW-QX?
For technical support, including PMEG2005EGW-QX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PMEG2005EGW-QX requirements.
6.How does Aetrix verify that PMEG2005EGW-QX is sourced from the original manufacturer or authorized distributors?
All PMEG2005EGW-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 PMEG2005EGW-QX meets industry standards.
7.What is the process for return or replacement of PMEG2005EGW-QX?
All PMEG2005EGW-QX units undergo pre-shipment inspection (PSI). If there is an issue with PMEG2005EGW-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 PMEG2005EGW-QX part is unused and in its original packaging.
Return procedure for PMEG2005EGW-QX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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