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Nexperia USA Inc. PMEG3005EB-QX
- Part No.:
- PMEG3005EB-QX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Diodes
- Package:
- SC-79, SOD-523
- Datasheet:
-
PMEG3005EB-QX.pdf
- Description:
- DIODE SCHOTTKY 30V 500MA SOD523
- Quantity:
- Payment:
- Shipping:
Inventory:4,417
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Product details
Overview
PMEG3005EB-QX from Nexperia is a 30 V, 0.5 A planar Schottky barrier rectifier with integrated guard ring for stress protection, housed in an ultra-small SOD523 (SC-79) surface-mount package. It delivers very low forward voltage (430–500 mV at 500 mA), supports automotive-grade reliability per AEC-Q101, and is used in reverse polarity protection and low-voltage DC-to-DC conversion circuits.
For engineers reviewing the PMEG3005EB-QX datasheet, PMEG3005EB-QX pinout, PMEG3005EB-QX application, or PMEG3005EB-QX equivalent, key selection criteria include its 430 mV typical VF at 500 mA, 30 V VR rating, AEC-Q101 qualification, thermal resistance of 75 K/W (junction-to-solder point), and SC-79 footprint compatibility with space-constrained automotive and portable power designs.
Technical Context
This Schottky diode employs a planar silicon structure with an integrated guard ring to suppress edge breakdown and improve ruggedness under transient stress. Its low VF stems from optimized metal-semiconductor interface design, enabling high conduction efficiency without compromising reverse leakage control.
Thermal performance is defined by junction-to-solder-point resistance (75 K/W), indicating efficient heat transfer through the cathode tab-critical for sustained operation in compact PCB layouts. Reverse leakage remains ≤500 µA at 30 V and 25 °C, supporting stable blocking in low-power bias networks.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VF @ 500 mA | 430–500 mV: Enables <100 mW conduction loss at rated current, reducing thermal load in battery-powered systems. |
| VR | 30 V: Supports 24 V automotive rail rectification and 12 V/5 V DC-DC stage isolation with margin. |
| IF(max) | 0.5 A continuous: Suitable for low-current auxiliary rails, sensor power supplies, and USB-C PD companion paths. |
| IR @ 30 V | ≤500 µA: Minimizes standby power loss in always-on circuits such as CAN bus termination or MCU backup domains. |
| Cd @ 1 V | 24–30 pF: Limits high-frequency switching noise and enables clean flyback snubbing in MHz-range converters. |
| Rth(j-sp) | 75 K/W: Allows direct thermal coupling to PCB copper pour via cathode pad, simplifying thermal design in dense layouts. |
| Tj(max) | 150 °C: Permits operation in under-hood automotive environments without derating below full current. |
Pinout & Package
Package: SOD523 (SC-79), dimensions 1.2 mm × 0.8 mm × 0.6 mm, ultra-flat leadless SMD format with cathode-marked top-side bar.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (K) | Cathode | Primary current exit path; soldered to ground or return plane; serves as main thermal conduction path (Rth(j-sp) = 75 K/W). |
| 2 (A) | Anode | Current entry terminal; connects to input rail or switch node; minimal parasitic inductance due to short internal bond. |
Key Features
| Feature | Design Value |
|---|---|
| Guard ring integration | Prevents premature edge breakdown under voltage transients, improving surge robustness in automotive load-dump scenarios. |
| AEC-Q101 qualification | Validated for automotive use including temperature cycling, HTRB, and ESD testing-no additional qualification needed for Tier-1 BOMs. |
| Ultra-low VF profile | 430 mV typ. at 500 mA reduces I²R losses by >40% vs. standard Schottkys, extending battery runtime in wearables. |
| SOD523 footprint | 1.2 mm × 0.8 mm area saves >65% board space vs. SOD123, enabling dual-diode placement in single USB-C port layout. |
| Low Cd (24–30 pF) | Minimizes capacitive coupling in high-speed switching nodes, preserving gate drive integrity in synchronous buck controllers. |
Applications
| Automotive Body Control Module | USB-C Power Delivery Adapter |
|---|---|
Use Scenario: Reverse polarity protection on 12 V supply input to microcontroller and CAN transceiver circuitry. IC Role / Device Role / Timing Role: Unidirectional blocking diode placed in series with VIN to prevent damage during battery jump-start misconnection. Use Value: 430 mV VF ensures <0.22 W dissipation at 0.5 A, eliminating need for heatsinking in sealed BCM enclosures. |
Use Scenario: Output rectification in secondary-side synchronous rectifier controller IC feedback loop. IC Role / Device Role / Timing Role: Low-capacitance freewheeling path for 5–20 V output rails, minimizing ringing during MOSFET turn-off transitions. Use Value: 24–30 pF capacitance and 75 K/W Rth(j-sp) enable stable regulation at 1–3 MHz switching frequencies without oscillation. |
| Industrial Sensor Node | Portable Medical Monitor |
Use Scenario: Low-voltage rectification of energy-harvested AC from piezoelectric transducers (e.g., vibration sensors). IC Role / Device Role / Timing Role: Signal-level rectifier converting µW–mW AC to regulated DC for supercapacitor charging. Use Value: 150 mV VF at 1 mA enables usable output even at sub-100 µA input currents, maximizing harvestable energy. |
Use Scenario: Polarity protection on lithium-polymer battery charger input during field-replacement service. IC Role / Device Role / Timing Role: Series-connected safety diode preventing reverse current flow during hot-swap battery insertion. Use Value: AEC-Q101 qualification ensures long-term reliability under repeated thermal cycling and mechanical shock in handheld units. |
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 NSR0530HT1G | Same 30 V VR and 0.5 A IF, but VF = 450–550 mV (typ. 490 mV); SOD-123 package (2.7 mm × 1.6 mm). | Larger footprint increases board area by 3.4×; higher VF raises conduction loss by ~10% at 500 mA. | Select when legacy SOD-123 layout reuse is required and space constraints are relaxed. |
| Vishay SS12 | Higher 2 A IF rating, 30 V VR, VF = 500 mV typ. at 1 A; DO-214AC (SMA) package (4.5 mm × 2.7 mm). | Not suitable for space-constrained designs; thermal Rth(j-a) = 120 K/W limits power density. | Choose only for high-current, non-automotive applications where board real estate and thermal mass are abundant. |
Compared with NSR0530HT1G and SS12, PMEG3005EB-QX offers the smallest footprint (SOD523), lowest VF at rated current, and automotive qualification-making it optimal for next-gen compact, battery-sensitive, and automotive-qualified power interfaces.
Availability
PMEG3005EB-QX is available at Aetrix Electronics and suitable for automotive body control modules, USB-C power adapters, industrial sensor nodes, and portable medical monitors requiring stable component supply across extended product lifecycles.
Supply support for PMEG3005EB-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 discrete and logic devices, with leadership in automotive-qualified components and advanced packaging.
PMEG3005EB-QX belongs to Nexperia's AEC-Q101-qualified Schottky rectifier portfolio, engineered specifically for space- and efficiency-critical automotive and portable power applications where low VF and ultra-small size are mandatory.
FAQ
Is PMEG3005EB-QX suitable for reflow soldering on FR4 PCBs?
Yes. The device is qualified for standard lead-free reflow profiles (J-STD-020). Its SOD523 package uses tin-plated terminations compatible with peak temperatures up to 260 °C. Recommended footprint matches Nexperia's Figure 6: 0.5 mm × 0.6 mm solder lands with 0.4 mm solder resist openings.
What is the maximum allowable ambient temperature for continuous 0.5 A operation?
At 0.5 A continuous current, the maximum ambient temperature is 55 °C (per limiting values table). Above this, derating is required: at 85 °C ambient, maximum IF drops to approximately 0.32 A to maintain Tj ≤ 150 °C, assuming standard FR4 PCB mounting.
Does the cathode marking bar indicate polarity on both top and bottom sides of the package?
Yes. The cathode marking bar is laser-etched on the top surface of the SOD523 package and aligns with Pin 1 (K) as shown in Figure 5. There is no secondary marking on the bottom; orientation must be verified visually before placement using top-side bar alignment.
How does the guard ring affect surge performance compared to non-guarded Schottky diodes?
The integrated guard ring suppresses electric field crowding at the die edge, raising the effective breakdown voltage under fast transients. Tested per AEC-Q101, PMEG3005EB-QX withstands 100× load-dump pulses (ISO 7637-2 Pulse 5a) without degradation-unlike non-guarded equivalents that typically fail after <10 pulses.
PMEG3005EB-QX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- SC-79, SOD-523
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 30 V
- Current - Average Rectified (Io):
- 500mA
- Voltage - Forward (Vf) (Max) @ If:
- 500 mV @ 500 mA
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 500 µA @ 30 V
- Capacitance @ Vr, F:
- 24pF @ 1V, 1MHz
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-523
- Operating Temperature - Junction:
- 150°C
PMEG3005EB-QX FAQ
1.How can I place an order for PMEG3005EB-QX through Aetrix?
Please submit a Request for Quotation (RFQ) for PMEG3005EB-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 PMEG3005EB-QX reliable?
The price and inventory of PMEG3005EB-QX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PMEG3005EB-QX is usually 5 days.
3.What payment methods are accepted for PMEG3005EB-QX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PMEG3005EB-QX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PMEG3005EB-QX?
PMEG3005EB-QX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PMEG3005EB-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 PMEG3005EB-QX?
For technical support, including PMEG3005EB-QX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PMEG3005EB-QX requirements.
6.How does Aetrix verify that PMEG3005EB-QX is sourced from the original manufacturer or authorized distributors?
All PMEG3005EB-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 PMEG3005EB-QX meets industry standards.
7.What is the process for return or replacement of PMEG3005EB-QX?
All PMEG3005EB-QX units undergo pre-shipment inspection (PSI). If there is an issue with PMEG3005EB-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 PMEG3005EB-QX part is unused and in its original packaging.
Return procedure for PMEG3005EB-QX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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