Nexperia USA Inc. PMEG2020EJ-QF
- Part No.:
- PMEG2020EJ-QF
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Diodes
- Package:
- SC-90, SOD-323F
- Datasheet:
-
PMEG2020EJ-QF.pdf
- Description:
- PMEG2020EJ-Q/SOD323F/SOD323F
- Quantity:
- Payment:

- Shipping:

Inventory:8,421
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Product details
Overview
PMEG2020EJ-QF from Nexperia is a planar Schottky barrier rectifier with integrated guard ring for stress protection, rated for 20 V reverse voltage and 2 A forward current, featuring a typical forward voltage of 450 mV at 2 A and housed in an AEC-Q101-qualified SOD323F (SC-90) package; it serves as a low-loss freewheeling or polarity protection diode in automotive DC/DC converters.
For engineers reviewing the PMEG2020EJ-QF datasheet, PMEG2020EJ-QF pinout, PMEG2020EJ-QF application, or PMEG2020EJ-QF equivalent, key selection criteria include its ultra-low VF at high IF, thermal resistance to solder point (150 K/W), AEC-Q101 qualification, and SOD323F footprint compatibility with space-constrained automotive PCB layouts.
Technical Context
This discrete Schottky diode uses a planar junction structure with an integrated guard ring to suppress edge breakdown under transient stress, enabling stable operation up to 150 °C junction temperature. Its low capacitance (50–60 pF at 5 V) and fast recovery support high-frequency switching in buck converters.
The device operates within strict absolute maximum ratings: 20 V VR, 2 A continuous IF (Tsp ≤ 55 °C), and 9 A non-repetitive peak IF (8 ms, 25 °C initial Tj). Thermal performance is defined for two PCB mounting conditions-standard footprint (350 K/W Rth(j-a)) and enhanced cathode pad (150 K/W Rth(j-sp)).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Voltage (VR) | 20 V - Maximum blocking voltage before significant leakage or breakdown; sets upper limit for input rail protection in 12 V automotive systems. |
| Forward Current (IF) | 2 A continuous - Sustained conduction capability at Tsp ≤ 55 °C; supports compact power stages in sub-5 W DC/DC modules. |
| Forward Voltage (VF) | 450 mV typ. @ 2 A - Low conduction loss reduces heat generation and improves efficiency in high-duty-cycle rectification. |
| Reverse Current (IR) | 45 µA typ. @ 20 V - Low leakage preserves battery life in always-on automotive modules such as body control units. |
| Diode Capacitance (Cd) | 50 pF typ. @ 5 V - Enables clean switching waveforms and minimal EMI in >1 MHz synchronous rectifiers. |
| Junction Temperature (Tj) | 150 °C max - Allows operation in under-hood environments without derating in most automotive ambient profiles. |
| Thermal Resistance (Rth(j-sp)) | 150 K/W - Quantifies thermal path from junction to cathode solder point; critical for estimating local hotspot rise on FR4 with 1 cm² copper pad. |
Pinout & Package
Encapsulated in the SOD323F (SC-90) surface-mount plastic package measuring 1.7 mm × 1.25 mm × 0.7 mm, this diode features a flat lead profile optimized for automated placement and reflow soldering on dense automotive PCBs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (K) | Cathode | Connected to higher-potential node during forward bias; must be routed to largest available copper pour for thermal dissipation and low-inductance return path. |
| 2 (A) | Anode | Connected to lower-potential node (e.g., ground or switch node); polarity marking 'CA' on top surface identifies cathode as pin 1. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive use per stress test requirements including HTGB, HTRB, and temperature cycling-enables direct deployment in engine control, lighting, and ADAS modules. |
| Guard ring integration | Suppresses electric field crowding at junction edges, preventing premature avalanche and improving long-term reliability under repetitive surge conditions. |
| Ultra-low VF at 2 A | 450 mV typical enables ≥2 % efficiency gain over standard Schottkys in 5 V output buck converters operating at 1.5 A load. |
| SOD323F footprint | 1.7 mm × 1.25 mm body with 0.5 mm pin pitch allows placement in <2 mm² board area-ideal for space-limited infotainment and sensor interface PCBs. |
Applications
| Automotive Body Control Module | USB-C Power Delivery Clamp |
|---|---|
|
Use Scenario: Reverse polarity protection on 12 V supply rail feeding microcontroller and CAN transceiver circuitry. IC Role / Device Role / Timing Role: Unidirectional current gate that blocks negative input while conducting forward current with minimal voltage drop. Use Value: Prevents damage from accidental battery reversal; 450 mV VF ensures <0.9 W conduction loss at 2 A, eliminating need for heatsinking. |
Use Scenario: Input clamp in USB-C PD sink design to protect downstream 5–20 V logic rails from overvoltage transients. IC Role / Device Role / Timing Role: Fast-acting shunt element that clamps reverse energy during hot-plug events without latch-up. Use Value: 50 pF capacitance avoids signal integrity degradation on CC and SBU lines; AEC-Q101 rating supports automotive-grade USB-C ports. |
| Low-Power DC/DC Buck Converter | LED Driver Freewheel Path |
|
Use Scenario: Synchronous rectification in 3.3 V/2 A buck converter powering automotive instrument cluster backlighting. IC Role / Device Role / Timing Role: Low-loss freewheel diode replacing MOSFET body diode during high-side switch off-time. Use Value: 450 mV VF reduces conduction loss by 65 % vs. standard silicon diode, lowering thermal load on 4-layer PCB with limited copper area. |
Use Scenario: Flyback path for constant-current LED driver supplying interior dome lights in 12 V vehicle architecture. IC Role / Device Role / Timing Role: Energy recirculation path that sustains LED current during PWM off-cycles and absorbs inductive kickback. Use Value: 9 A IFSM rating handles 8 ms surge pulses from 100 mA LED strings; 150 °C Tj rating ensures stability during cabin temperature excursions. |
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/2 A rating but TO-277A package (3.5 mm × 2.5 mm); VF = 470 mV @ 2 A; no AEC-Q101 certification. | Requires larger PCB area and lacks automotive qualification; suitable for industrial DC/DC where qualification is not mandated. | Select when board space permits larger footprint and AEC-Q101 is not required; verify thermal margin due to higher Rth(j-a). |
| ON Semiconductor NSR20F20NXT5G | 20 V/2 A, VF = 430 mV @ 2 A, SOD-123FL package (same height but wider: 2.8 mm × 1.7 mm); AEC-Q101 qualified. | Larger length increases routing congestion in tight layouts; slightly lower VF offers marginal efficiency gain at cost of 65 % more board area. | Prefer only if 20 mV VF reduction justifies 1.6× footprint increase and thermal design accommodates longer thermal path. |
Compared with VS-2EDH02HM3/85A and NSR20F20NXT5G, the PMEG2020EJ-QF delivers optimal balance of ultra-compact SOD323F size, AEC-Q101 compliance, and 450 mV VF-making it the preferred choice for space- and qualification-constrained automotive power nodes.
Availability
PMEG2020EJ-QF is available at Aetrix Electronics and suitable for automotive body control modules, USB-C power delivery interfaces, and low-power DC/DC buck converters requiring stable component supply across extended production lifecycles.
Supply support for PMEG2020EJ-QF 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 specializing in high-volume, high-reliability discrete and logic devices, with core competencies in automotive-qualified components and advanced packaging.
The PMEG2020EJ-QF belongs to Nexperia's AEC-Q101-qualified Schottky rectifier product line, engineered specifically for low-voltage, high-efficiency power management in harsh automotive environments.
FAQ
Is PMEG2020EJ-QF suitable for 24 V truck electrical systems?
No. With a 20 V maximum reverse voltage rating, the PMEG2020EJ-QF is designed for 12 V nominal automotive systems. Applying 24 V or load-dump transients exceeding 20 V risks irreversible breakdown. For 24 V systems, consider Nexperia's PMEG3020EJ-QF (30 V VR) or equivalent.
What is the meaning of the 'CA' marking on the device top?
The 'CA' marking identifies the cathode (pin 1) on the SOD323F package. It aligns with the pinning diagram in the datasheet: pin 1 = cathode (K), pin 2 = anode (A). This marking is standardized across Nexperia's SC-90 devices and must be verified during automated optical inspection (AOI) setup.
Can PMEG2020EJ-QF replace a standard silicon diode in an existing 5 V buck converter?
Yes-provided the original diode's VR ≥ 20 V and IF ≥ 2 A. The PMEG2020EJ-QF's 450 mV VF reduces conduction loss by ~70 % versus a typical 1N5819 (VF ≈ 1.5 V), lowering thermal stress and potentially allowing removal of heatsinking. Confirm layout clearance for SOD323F footprint.
Does the AEC-Q101 qualification cover PPAP submission support?
Yes. Nexperia provides full AEC-Q101 test reports, material declarations (IMDS), and process flow documentation required for PPAP Level 3 submissions. Aetrix Electronics can supply certified lot traceability data and supporting qualification evidence upon request for automotive program launches.
PMEG2020EJ-QF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- SC-90, SOD-323F
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 20 V
- Current - Average Rectified (Io):
- 2A
- Voltage - Forward (Vf) (Max) @ If:
- 525 mV @ 2 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 200 µA @ 20 V
- Capacitance @ Vr, F:
- 50pF @ 5V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-323F
- Operating Temperature - Junction:
- 150°C
PMEG2020EJ-QF FAQ
1.How can I place an order for PMEG2020EJ-QF through Aetrix?
Please submit a Request for Quotation (RFQ) for PMEG2020EJ-QF 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 PMEG2020EJ-QF reliable?
The price and inventory of PMEG2020EJ-QF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PMEG2020EJ-QF is usually 5 days.
3.What payment methods are accepted for PMEG2020EJ-QF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PMEG2020EJ-QF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PMEG2020EJ-QF?
PMEG2020EJ-QF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PMEG2020EJ-QF 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 PMEG2020EJ-QF?
For technical support, including PMEG2020EJ-QF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PMEG2020EJ-QF requirements.
6.How does Aetrix verify that PMEG2020EJ-QF is sourced from the original manufacturer or authorized distributors?
All PMEG2020EJ-QF 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 PMEG2020EJ-QF meets industry standards.
7.What is the process for return or replacement of PMEG2020EJ-QF?
All PMEG2020EJ-QF units undergo pre-shipment inspection (PSI). If there is an issue with PMEG2020EJ-QF, 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 PMEG2020EJ-QF part is unused and in its original packaging.
Return procedure for PMEG2020EJ-QF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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