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Nexperia USA Inc. PMEG4005EGW-QX
- Part No.:
- PMEG4005EGW-QX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Diodes
- Package:
- SOD-123
- Datasheet:
-
PMEG4005EGW-QX.pdf
- Description:
- DIODE SCHOTTKY 40V 500MA SOD123
- Quantity:
- Payment:
- Shipping:
Inventory:5,061
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Product details
Overview
PMEG4005EGW-QX from Nexperia is a 40 V, 0.5 A planar MEGA Schottky barrier rectifier in SOD123 package, featuring low forward voltage (420 mV typ. at 500 mA), low reverse leakage (30 µA typ. at 40 V), and AEC-Q101 qualification for automotive use - deployed in reverse polarity protection and DC-DC converter output stages.
For engineers reviewing the PMEG4005EGW-QX datasheet, PMEG4005EGW-QX pinout, PMEG4005EGW-QX application, or PMEG4005EGW-QX equivalent, key selection criteria include VF/IR trade-off at 25–125 °C, thermal resistance to solder point (190 K/W), and SOD123 footprint compatibility with high-density automotive PCB layouts.
Technical Context
This Schottky rectifier uses a planar die structure with integrated guard ring for enhanced ESD and surge robustness. Its low VF stems from optimized metal-semiconductor interface and thin epitaxial layer, enabling high efficiency in low-voltage (<12 V) power rails.
Thermal performance is defined by junction-to-solder-point resistance (190 K/W on FR4 with cathode pad), and it sustains repetitive peak forward current up to 7 A (tp ≤ 1 ms) - critical for handling transient loads in automotive infotainment and body control modules.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Forward Voltage (VF) | 420 mV typ. at 500 mA - reduces conduction loss by ~35% vs. standard Schottkys in 5 V/3.3 V rail rectification. |
| Reverse Voltage (VR) | 40 V - supports 24 V automotive systems with 100% margin over nominal bus voltage. |
| Reverse Leakage (IR) | 30 µA typ. at 40 V - minimizes standby power loss in always-on vehicle modules. |
| Junction Temperature (Tj) | 150 °C max - enables operation in under-hood environments without derating at 85 °C ambient. |
| Thermal Resistance (Rth(j-sp)) | 190 K/W - allows direct thermal coupling to PCB copper pour for passive cooling in space-constrained modules. |
| Diode Capacitance (Cd) | 43 pF typ. at 1 V - limits switching noise and EMI in high-frequency (>500 kHz) buck converters. |
Pinout & Package
Encapsulated in SOD123 surface-mount plastic package (2.675 mm × 1.6 mm × 1.15 mm), with cathode marked by bar on top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (K) | Cathode | Connected to load ground or return path; marking bar identifies this terminal - critical for correct polarity in reverse protection circuits. |
| 2 (A) | Anode | Connected to input supply rail; carries full forward current during conduction - routed to minimize loop inductance in SMPS outputs. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive temperature cycling (-40 °C to +125 °C), humidity, and mechanical shock - eliminates requalification effort for Tier 1 BOMs. |
| Guard ring integration | Prevents edge breakdown under high dv/dt or ESD stress - improves reliability in noisy 12 V battery line applications. |
| Low VF / low IR balance | 420 mV VF and 30 µA IR at 25 °C enable <10 mW static loss at 500 mA - extends battery life in telematics modules. |
| SOD123 footprint | Standardized 2.675 mm × 1.6 mm land pattern compatible with IPC-7351B - simplifies layout reuse across Nexperia's MEGA Schottky family. |
Applications
| Automotive Reverse Polarity Protection | DC-DC Converter Output Rectification |
|---|---|
Use Scenario: Protecting infotainment head units and ADAS cameras from incorrect battery connection during service. IC Role / Device Role / Timing Role: Unidirectional current blocking element placed in series with main power input. Use Value: Prevents catastrophic failure with <10 mΩ effective series resistance and no turn-on delay - responds instantly to reverse voltage events. |
Use Scenario: Output stage of 5 V/3.3 V synchronous buck converter in gateway ECUs. IC Role / Device Role / Timing Role: Freewheeling diode complementing high-side MOSFET during low-side switch off-time. Use Value: Enables >92% efficiency at 500 mA due to 420 mV VF - reduces thermal load versus silicon diodes by 180 mW. |
| Low-Power IoT Sensor Node Supply | USB-C Power Path Management |
Use Scenario: Input protection and voltage clamping in battery-powered tire pressure sensors. IC Role / Device Role / Timing Role: Standby-mode reverse current blocker and low-loss rectifier for energy harvesting inputs. Use Value: 30 µA IR at 40 V ensures <1.2 µW leakage - preserves CR2032 battery life beyond 10 years in sleep mode. |
Use Scenario: Isolation between USB-C source and sink paths in portable medical devices. IC Role / Device Role / Timing Role: Directional power gate preventing backfeed from VBUS to legacy 5 V rails. Use Value: 40 V VR rating accommodates USB PD 3.0 20 V profiles while maintaining 1.15 mm profile for ultra-thin enclosures. |
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-40CPH005-M3/45 | TO-277 package (larger, 4.5 mm × 3.5 mm); VF = 450 mV @ 500 mA; IR = 100 µA @ 40 V | Higher thermal mass but less suitable for dense automotive PCBs; higher IR increases standby loss | Preferred where board-level heat sinking is available and footprint size is not constrained |
| ON Semiconductor NSR0540HT1G | SOD-123 package; VF = 450 mV @ 500 mA; IR = 50 µA @ 40 V; not AEC-Q101 qualified | Lacks automotive qualification; higher IR degrades battery runtime in always-on nodes | Acceptable for industrial or consumer designs where AEC-Q101 is not mandated |
Compared with VS-40CPH005-M3/45 and NSR0540HT1G, PMEG4005EGW-QX delivers the lowest combined VF/IR at 25–125 °C in AEC-Q101-compliant SOD123, making it optimal for space- and efficiency-critical automotive power rails.
Availability
PMEG4005EGW-QX is available at Aetrix Electronics and suitable for automotive reverse polarity protection, DC-DC converter output rectification, and low-power IoT sensor node supply requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for PMEG4005EGW-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 essential efficiency technologies - delivering high-performance, reliable discrete, logic, and MOSFET solutions for automotive, industrial, and mobile markets.
This device belongs to Nexperia's MEGA Schottky rectifier product line, engineered specifically for low-VF, low-leakage automotive power management where thermal density and AEC-Q101 compliance are mandatory.
FAQ
What is the maximum continuous forward current rating for PMEG4005EGW-QX?
The absolute maximum average forward current is 0.5 A at Tsp ≤ 55 °C on FR4 PCB with standard footprint. At higher ambient temperatures, derating applies: 0.35 A at 100 °C ambient per Figure 3 in the datasheet, based on thermal resistance and junction temperature limit of 150 °C.
Does PMEG4005EGW-QX support reflow soldering per JEDEC J-STD-020?
Yes - the SOD123 package is qualified for lead-free reflow per JEDEC J-STD-020D. Peak temperature must not exceed 260 °C for ≤ 30 seconds, with ramp-up rate ≤ 3 °C/s. Recommended footprint matches Figure 8 in the datasheet (2.36 mm × 1.11 mm cathode pad).
How does the guard ring improve reliability in automotive applications?
The integrated guard ring suppresses electric field crowding at the die edge, raising the reverse breakdown voltage margin and improving immunity to ESD (IEC 61000-4-2 Level 4) and load dump transients. This prevents premature failure in 12 V battery line interfaces exposed to alternator spikes.
Is the marking code 'G4' sufficient for full traceability?
Yes - 'G4' is the unique marking code for PMEG4005EGW-QX per Table 4. Combined with date code and reel label, it enables full lot traceability to wafer fab and assembly site. Nexperia provides traceability reports upon request for automotive PPAP submissions.
PMEG4005EGW-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):
- 500mA
- Voltage - Forward (Vf) (Max) @ If:
- 470 mV @ 500 mA
- 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
PMEG4005EGW-QX FAQ
1.How can I place an order for PMEG4005EGW-QX through Aetrix?
Please submit a Request for Quotation (RFQ) for PMEG4005EGW-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 PMEG4005EGW-QX reliable?
The price and inventory of PMEG4005EGW-QX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PMEG4005EGW-QX is usually 5 days.
3.What payment methods are accepted for PMEG4005EGW-QX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PMEG4005EGW-QX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PMEG4005EGW-QX?
PMEG4005EGW-QX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PMEG4005EGW-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 PMEG4005EGW-QX?
For technical support, including PMEG4005EGW-QX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PMEG4005EGW-QX requirements.
6.How does Aetrix verify that PMEG4005EGW-QX is sourced from the original manufacturer or authorized distributors?
All PMEG4005EGW-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 PMEG4005EGW-QX meets industry standards.
7.What is the process for return or replacement of PMEG4005EGW-QX?
All PMEG4005EGW-QX units undergo pre-shipment inspection (PSI). If there is an issue with PMEG4005EGW-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 PMEG4005EGW-QX part is unused and in its original packaging.
Return procedure for PMEG4005EGW-QX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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