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Nexperia USA Inc. PMEG2005ET-QR
- Part No.:
- PMEG2005ET-QR
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
PMEG2005ET-QR.pdf
- Description:
- DIODE SCHOTTKY 20V 500MA TO236AB
- Quantity:
- Payment:
- Shipping:
Inventory:1,790
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Product details
Overview
PMEG2005ET-QR from Nexperia is a 20 V, 0.5 A automotive-qualified Schottky barrier rectifier in SOT23 package, featuring 355–390 mV forward voltage at 500 mA, integrated guard ring for stress protection, and optimized for low-voltage DC/DC conversion and reverse polarity protection in automotive ECUs.
For engineers reviewing the PMEG2005ET-QR datasheet, PMEG2005ET-QR pinout, PMEG2005ET-QR application, or PMEG2005ET-QR equivalent, key selection criteria include ultra-low VF at rated current, AEC-Q101 qualification, SOT23 thermal performance under 420 mW dissipation, and n.c. terminal configuration for layout flexibility.
Technical Context
This MEGA Schottky rectifier uses planar silicon construction with an integrated guard ring to suppress edge breakdown and improve surge robustness. Its low VF stems from optimized metal-semiconductor interface and thin epitaxial layer design, enabling high efficiency in 3.3 V and 5 V rail generation.
It operates within −65 °C to 150 °C junction temperature range and supports pulsed forward currents up to 10 A (8 ms), making it suitable for transient-tolerant automotive power rails. Reverse leakage remains ≤200 µA at 20 V and 25 °C, critical for battery-sensitive systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Forward Voltage (VF) | 355–390 mV at 500 mA; enables <150 mW conduction loss in 3.3 V buck converters |
| Reverse Voltage (VR) | 20 V max; supports 12 V automotive battery systems with margin for load dump transients |
| Forward Current (IF) | 0.5 A continuous; sufficient for auxiliary rail regulation in body control modules |
| Reverse Leakage (IR) | ≤200 µA at 20 V, 25 °C; minimizes standby power drain in always-on circuits |
| Diode Capacitance (Cd) | 66–80 pF at 1 V; ensures minimal switching node ringing in high-frequency SMPS |
| Junction Temperature (Tj) | −65 to +150 °C; meets under-hood thermal requirements without derating |
| AEC-Q101 Qualified | Yes; validated for automotive discrete semiconductor stress testing per AEC standard |
Pinout & Package
Encapsulated in a standard SOT23 plastic surface-mount package (2.9 mm × 1.3 mm × 1.0 mm, 1.9 mm pin pitch), with exposed cathode pad for enhanced thermal conduction on FR4 PCBs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode (A) | Input terminal for forward conduction; connects to input rail or switch node |
| 2 | Not Connected (n.c.) | Internally unconnected; allows routing clearance or grounding for EMI reduction |
| 3 | Cathode (K) | Output terminal; tied to output rail or ground return path; thermally coupled to PCB pad |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low forward voltage | 355–390 mV @ 500 mA reduces conduction loss by >40% vs. standard Schottkys |
| Integrated guard ring | Suppresses edge avalanche and improves reliability under repetitive surge stress |
| AEC-Q101 qualification | Validated for automotive use including temperature cycling, HTRB, and ESD tests |
| SOT23 thermal design | 420 mW total power dissipation with 1 cm² cathode copper pad; supports compact layouts |
Applications
| Automotive Body Control Module (BCM) | USB-C Power Delivery Protection |
|---|---|
Use Scenario: Reverse polarity protection on 12 V supply input to microcontroller-based door module. IC Role / Device Role / Timing Role: Unidirectional blocking diode preventing damage during battery misconnection. Use Value: 355 mV VF limits voltage drop to <0.4 V, preserving brown-out margin for 5 V LDO input. |
Use Scenario: Input OR-ing diode in dual-source USB-C PD adapter with 5 V/9 V/15 V outputs. IC Role / Device Role / Timing Role: Low-loss path selector ensuring seamless source handover without voltage glitch. Use Value: 66 pF capacitance avoids high-frequency noise coupling into CC logic lines. |
| Low-Power IoT Sensor Node | Industrial 24 V DC/DC Auxiliary Rail |
Use Scenario: Battery backup path in coin-cell-powered environmental sensor with BLE radio. IC Role / Device Role / Timing Role: Ideal diode replacement minimizing quiescent current in energy harvesting path. Use Value: ≤200 µA IR at 20 V reduces self-discharge to <0.5 µA/hour in storage mode. |
Use Scenario: Output rectification in isolated flyback converter powering PLC I/O circuitry. IC Role / Device Role / Timing Role: High-efficiency secondary-side rectifier operating at 250 kHz switching frequency. Use Value: 440 K/W Rth(j-a) in free air enables operation at full 0.5 A without heatsink in 50 °C ambient. |
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 | 20 V, 0.5 A; VF = 370–450 mV @ 500 mA; no AEC-Q101 qualification | Rated for industrial/commercial use only; not validated for automotive temperature cycling or HTRB | Select when AEC-Q101 is not required and higher VF tolerance is acceptable |
| Vishay SS22 | 20 V, 2 A; VF = 450–550 mV @ 2 A; SOD-123 package; larger footprint and thermal mass | Higher current rating but 2× VF and 3× package area; unsuitable for space-constrained automotive modules | Choose only if system requires >0.5 A continuous current and board area permits SOD-123 |
Compared with NSR0520HT1G and SS22, PMEG2005ET-QR delivers the lowest VF in its class with automotive-grade reliability and minimal footprint-critical for ECU miniaturization and thermal management in confined enclosures.
Availability
PMEG2005ET-QR is available at Aetrix Electronics and suitable for automotive body electronics, USB-C power delivery systems, low-power IoT sensor nodes, and industrial 24 V DC/DC auxiliary rails requiring stable component supply across production lifecycles.
Supply support for PMEG2005ET-QR 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, serving automotive, industrial, mobile, and computing markets with discrete, logic, and MOSFET solutions.
PMEG2005ET-QR belongs to Nexperia's MEGA Schottky rectifier product line, engineered specifically for ultra-low VF performance and AEC-Q101 compliance in automotive power management subsystems.
FAQ
Is PMEG2005ET-QR pin-compatible with standard SOT23 diodes?
Yes, PMEG2005ET-QR uses standard SOT23 pinout: Pin 1 = Anode, Pin 2 = n.c., Pin 3 = Cathode. The n.c. terminal is internally unconnected and may be left floating, grounded, or used for thermal relief-no electrical conflict arises with legacy SOT23 diode footprints.
What is the maximum allowable PCB copper area for optimal thermal performance?
With a 1 cm² cathode-side copper pad on FR4 (single-sided, tin-plated), PMEG2005ET-QR achieves 300 K/W Rth(j-a), enabling full 0.5 A operation at 70 °C ambient. Larger pads yield diminishing returns; minimum recommended is 0.5 cm² for 420 mW dissipation at 25 °C ambient.
Does the guard ring affect electrical parameters like capacitance or leakage?
No-the guard ring is a passive structural feature that does not alter Cd or IR values. It resides outside the active junction region and serves solely to redistribute electric field at the silicon edge, improving surge withstand without impacting forward or reverse characteristics.
Can PMEG2005ET-QR be used in synchronous rectification topologies?
No-it is a passive Schottky rectifier, not a MOSFET-based synchronous rectifier controller or driver. Its role is limited to uncontrolled unidirectional conduction; synchronous designs require gate-driven N-channel FETs with timing control circuitry external to this device.
PMEG2005ET-QR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- 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:
- TO-236AB
- Operating Temperature - Junction:
- 150°C
PMEG2005ET-QR FAQ
1.How can I place an order for PMEG2005ET-QR through Aetrix?
Please submit a Request for Quotation (RFQ) for PMEG2005ET-QR 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 PMEG2005ET-QR reliable?
The price and inventory of PMEG2005ET-QR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PMEG2005ET-QR is usually 5 days.
3.What payment methods are accepted for PMEG2005ET-QR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PMEG2005ET-QR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PMEG2005ET-QR?
PMEG2005ET-QR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PMEG2005ET-QR 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 PMEG2005ET-QR?
For technical support, including PMEG2005ET-QR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PMEG2005ET-QR requirements.
6.How does Aetrix verify that PMEG2005ET-QR is sourced from the original manufacturer or authorized distributors?
All PMEG2005ET-QR 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 PMEG2005ET-QR meets industry standards.
7.What is the process for return or replacement of PMEG2005ET-QR?
All PMEG2005ET-QR units undergo pre-shipment inspection (PSI). If there is an issue with PMEG2005ET-QR, 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 PMEG2005ET-QR part is unused and in its original packaging.
Return procedure for PMEG2005ET-QR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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