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Nexperia USA Inc. PMEG2005EGWX
- Part No.:
- PMEG2005EGWX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Diodes
- Package:
- SOD-123
- Datasheet:
-
PMEG2005EGWX.pdf
- Description:
- DIODE SCHOTTKY 20V 500MA SOD123
- Quantity:
- Payment:
- Shipping:
Inventory:25,239
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Product details
Overview
PMEG2005EGWX 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 integrated guard ring for stress protection - deployed in DC-DC converters, reverse polarity protection, and low-voltage rectification circuits.
For engineers reviewing the PMEG2005EGWX datasheet, PMEG2005EGWX pinout, PMEG2005EGWX application, or PMEG2005EGWX equivalent, key selection criteria include forward voltage drop under 500 mA load, thermal resistance to solder point (190 K/W), junction temperature limit (150 °C), and SOD123 footprint compatibility with high-density PCB layouts.
Technical Context
This MEGA Schottky diode uses a planar silicon structure with an integrated guard ring to suppress edge breakdown and improve reliability under transient stress. Its low VF stems from optimized metal-semiconductor interface design, enabling efficient conduction at low voltages without significant thermal runaway risk.
It operates within a −55 °C to 150 °C ambient range, supports repetitive peak forward current up to 7 A (tp ≤ 1 ms), and delivers stable reverse leakage below 200 µA even at full 20 V reverse bias - validated under pulsed test conditions to avoid self-heating artifacts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Forward Voltage | 355 mV typical at 500 mA - reduces conduction loss in low-voltage power paths |
| Reverse Voltage | 20 V maximum - suitable for 12 V rail clamping and 5 V–15 V DC-DC output rectification |
| Reverse Leakage | 40 µA typical at 20 V - minimizes standby power loss in battery-powered systems |
| Junction Temperature | 150 °C max - enables operation in thermally constrained industrial and automotive-adjacent environments |
| Thermal Resistance j-sp | 190 K/W - defines temperature rise from junction to cathode solder point on FR4 PCB |
| Diode Capacitance | 66 pF typical at 1 V reverse bias - limits switching noise and EMI in high-frequency SMPS |
| Average Forward Current | 0.5 A at Tsp ≤ 145 °C - sets continuous DC handling capability with standard SOD123 mounting |
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 device top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Output terminal for forward conduction; connects to lower-potential node; marked with bar |
| 2 | Anode (A) | Input terminal for forward conduction; connects to higher-potential node; unmarked end |
Key Features
| Feature | Design Value |
|---|---|
| Guard ring integration | Prevents edge breakdown under voltage transients, improving long-term reliability in noisy power rails |
| Low VF at 500 mA | 355 mV typ. - directly lowers I²R losses and improves efficiency in sub-12 V DC-DC stages |
| SOD123 footprint | Standardized 2.675 mm × 1.6 mm land pattern - ensures compatibility with automated placement and reflow processes |
| Pulsed IR rating | 200 µA max at 20 V - verified under short-pulse conditions to exclude self-heating effects |
| Thermal performance | Rth(j-sp) = 190 K/W - enables predictable thermal modeling when mounted on 1 cm² cathode pad |
Applications
| DC-DC Converter Output Rectification | Reverse Polarity Protection |
|---|---|
Use Scenario: Used as synchronous rectifier replacement in 3.3 V/5 V buck converter outputs where ultra-low VF minimizes conduction loss. IC Role / Device Role / Timing Role: Passive unidirectional current valve enabling efficient low-voltage power delivery. Use Value: 355 mV VF reduces power loss by ~30% vs. standard Schottkys with VF > 500 mV at same current. |
Use Scenario: Placed in series with VIN to block reverse current during incorrect battery insertion or hot-swap events. IC Role / Device Role / Timing Role: Low-loss series blocking element with fast turn-off and minimal voltage drop in forward mode. Use Value: 40 µA reverse leakage prevents measurable battery drain over months of standby operation. |
| Low-Voltage AC Adapter Rectification | USB Power Path Management |
Use Scenario: Full-wave rectification stage in compact 5 V/9 V wall adapters feeding linear regulators or LDOs. IC Role / Device Role / Timing Role: High-efficiency AC-to-DC conversion element operating at line frequency with minimal heat generation. Use Value: 0.5 A average current rating supports up to 2.5 W output with <15 °C junction rise on standard FR4. |
Use Scenario: Isolates USB host port from peripheral-side power sources to prevent backfeed and bus contention. IC Role / Device Role / Timing Role: Unidirectional power gate ensuring USB VBUS integrity during dual-power scenarios. Use Value: 20 V VR rating exceeds USB PD 3.0's 20 V profile while maintaining sub-0.4 V forward drop. |
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 NSR0520HT1G | VF = 340 mV typ. at 500 mA; VR = 20 V; SOD-123 package; IR = 100 µA max at 20 V | Higher IR increases standby loss in battery systems; otherwise functionally interchangeable | Select when lowest possible VF is prioritized and leakage tolerance >100 µA |
| Vishay SS22 | VF = 450 mV typ. at 500 mA; VR = 20 V; SMA package (larger footprint); IF(AV) = 2 A | Larger package requires more board area; higher current rating unnecessary for 0.5 A use cases | Select only if existing SMA layout prohibits SOD123 adoption or higher surge current margin is required |
Compared with NSR0520HT1G and SS22, PMEG2005EGWX offers the best balance of ultra-low VF (355 mV), tight IR control (40 µA typ.), and minimal SOD123 footprint - making it optimal for space-constrained, efficiency-critical 0.5 A rectification tasks.
Availability
PMEG2005EGWX is available at Aetrix Electronics and suitable for DC-DC converters, reverse polarity protection circuits, and low-voltage AC adapter rectification requiring stable component supply and consistent parametric performance across production batches.
Supply support for PMEG2005EGWX 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 core expertise in Schottky diodes, MOSFETs, and ESD protection components.
This part belongs to Nexperia's MEGA Schottky rectifier product line, engineered specifically for low-voltage, high-efficiency power conversion in consumer, industrial, and computing applications where VF, leakage, and thermal behavior are critical.
FAQ
What is the maximum continuous forward current for PMEG2005EGWX?
The maximum average forward current is 0.5 A when the solder point temperature (Tsp) is maintained at or below 145 °C on a standard FR4 PCB with specified copper pad layout. This rating assumes δ = 0.5 square-wave excitation at 20 kHz and accounts for thermal derating above ambient.
Does PMEG2005EGWX have automotive qualification?
No. Per Nexperia's revision history (v.3, October 2023), this device is explicitly designated as non-automotive. It lacks AEC-Q101 qualification and is not tested to automotive temperature or reliability standards - intended for industrial, consumer, and computing applications only.
How is the cathode identified on the SOD123 package?
The cathode is marked by a visible bar printed on the top surface of the SOD123 package, aligned with Pin 1. The anode (Pin 2) is the unmarked end. This marking matches the simplified outline in Nexperia's datasheet Figure 7 and is consistent with JEDEC-standard SOD123 polarity conventions.
What is the thermal resistance from junction to solder point (Rth(j-sp))?
Rth(j-sp) is 190 K/W when mounted on an FR4 PCB with a single-sided, tin-plated copper pad of 1 cm² dedicated to the cathode. This value is measured per Nexperia's thermal characterization methodology and is used for accurate junction temperature estimation in thermal design.
PMEG2005EGWX 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 (Max)
PMEG2005EGWX FAQ
1.How can I place an order for PMEG2005EGWX through Aetrix?
Please submit a Request for Quotation (RFQ) for PMEG2005EGWX 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 PMEG2005EGWX reliable?
The price and inventory of PMEG2005EGWX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PMEG2005EGWX is usually 5 days.
3.What payment methods are accepted for PMEG2005EGWX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PMEG2005EGWX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PMEG2005EGWX?
PMEG2005EGWX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PMEG2005EGWX 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 PMEG2005EGWX?
For technical support, including PMEG2005EGWX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PMEG2005EGWX requirements.
6.How does Aetrix verify that PMEG2005EGWX is sourced from the original manufacturer or authorized distributors?
All PMEG2005EGWX 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 PMEG2005EGWX meets industry standards.
7.What is the process for return or replacement of PMEG2005EGWX?
All PMEG2005EGWX units undergo pre-shipment inspection (PSI). If there is an issue with PMEG2005EGWX, 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 PMEG2005EGWX part is unused and in its original packaging.
Return procedure for PMEG2005EGWX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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