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Nexperia USA Inc. PMEG4030EP,115
- Part No.:
- PMEG4030EP,115
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Diodes
- Package:
- SOD-128
- Datasheet:
-
PMEG4030EP,115.pdf
- Description:
- DIODE SCHOTTKY 40V 3A SOD128
- Quantity:
- Payment:
- Shipping:
Inventory:76,489
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Product details
Overview
PMEG4030EP from Nexperia is a planar Schottky barrier rectifier with integrated guard ring for stress protection, rated at 40 V reverse voltage and 3 A average forward current, featuring low 430–490 mV forward voltage at 3 A and 25 °C junction temperature, optimized for high-efficiency DC-to-DC conversion and reverse polarity protection in compact SMD power supplies.
For engineers reviewing the PMEG4030EP datasheet, PMEG4030EP pinout, PMEG4030EP application, or PMEG4030EP equivalent, key selection criteria include its low VF performance under 3 A load, thermal resistance to solder point (12 K/W), SOD128 package footprint compatibility, and suitability for reflow/wave soldering in space-constrained industrial and consumer power designs.
Technical Context
This Schottky diode employs clip-bond technology to enhance power capability and thermal performance, enabling stable operation up to 150 °C junction temperature. Its guard ring structure improves robustness against electrical overstress and transient voltage spikes in switching applications.
The device exhibits low reverse leakage (≤200 µA at 40 V, 25 °C) and low junction capacitance (350 pF at 1 V, 1 MHz), supporting high-frequency rectification in SMPS outputs and synchronous rectifier auxiliary paths where fast recovery and minimal capacitive loading are critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VR (Reverse Voltage) | 40 V - Maximum blocking voltage before breakdown; defines usable input range in 12–36 V DC systems. |
| IF(AV) (Avg. Forward Current) | 3 A - Continuous DC or pulsed current handling capacity at Tsp ≤ 140 °C on standard FR4 PCB. |
| VF (Forward Voltage) | 430–490 mV @ 3 A, 25 °C - Directly reduces conduction loss and improves efficiency in low-voltage output stages. |
| IR (Reverse Current) | 35–200 µA @ 40 V, 25 °C - Low leakage preserves standby power integrity in battery-powered or energy-sensitive designs. |
| Rth(j-sp) (Junction-to-Solder Point) | 12 K/W - Enables efficient heat transfer from cathode tab to PCB copper, supporting >1 W dissipation with proper layout. |
| Cd (Diode Capacitance) | 350 pF @ 1 V, 1 MHz - Minimizes switching node ringing and EMI in high-frequency (>100 kHz) converters. |
| Tj (Max Junction Temp) | 150 °C - Allows operation in thermally demanding environments without derating below full current rating. |
Pinout & Package
Encapsulated in the CFP5 (SOD128) surface-mount plastic package: 3.8 mm × 2.6 mm × 1.0 mm body, 4 mm pitch, flat lead profile compatible with automated assembly and thermal pad routing.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Marked side) | Cathode (K) | Connected to negative output or ground return path; marking bar identifies this terminal; cathode tab serves as primary thermal interface. |
| 2 | Anode (A) | Connected to input or switched node; carries forward current into load; no thermal pad connection. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated guard ring | Enhances ESD and surge immunity without external protection components, improving reliability in unregulated input stages. |
| Clip-bond construction | Reduces bond wire inductance and increases current-carrying cross-section, supporting 50 A non-repetitive peak surge (8.3 ms half-sine). |
| SOD128 package | Enables high-density PCB layouts with 2.3 mm minimum creepage and compatibility with IPC-7351B reflow land patterns. |
| Reflow/wave solder compatible | Qualified per J-STD-020 and J-STD-006; supports lead-free assembly without delamination or voiding in cathode thermal pad. |
Applications
| Low Voltage Rectification | High-Efficiency DC-DC Conversion |
|---|---|
Use Scenario: Output rectification in 3.3 V/5 V buck converters powering FPGAs and microcontrollers. IC Role / Device Role / Timing Role: Unidirectional current path delivering regulated low-voltage DC with minimal forward drop. Use Value: 430 mV VF at 3 A reduces conduction loss by ~35% vs. standard silicon diodes, directly increasing converter efficiency above 92%. |
Use Scenario: Secondary-side rectification in isolated flyback or forward converters for USB PD adapters. IC Role / Device Role / Timing Role: High-frequency synchronous rectifier replacement in quasi-resonant topologies. Use Value: 350 pF capacitance and <10 ns reverse recovery minimize switching losses and EMI generation at 200–500 kHz operation. |
| Reverse Polarity Protection | Low Power Consumption Systems |
Use Scenario: Input protection in portable medical sensors and IoT edge nodes powered by coin cells or USB. IC Role / Device Role / Timing Role: Series-connected cathode-to-load configuration blocking reverse voltage during battery insertion errors. Use Value: 200 µA max IR at 40 V ensures <1 µW standby leakage, preserving battery life over multi-year deployments. |
Use Scenario: Power path management in always-on wearables with ultra-low quiescent current requirements. IC Role / Device Role / Timing Role: OR-ing diode in dual-supply systems (battery + USB) preventing backfeed and enabling seamless switchover. Use Value: 12 K/W Rth(j-sp) allows full 3 A current handling with only 36 °C rise above solder point, eliminating need for heatsinks. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SS34 (ON Semiconductor) | 40 V VR, 3 A IF(AV), VF = 500 mV @ 3 A - 70–160 mV higher forward drop than PMEG4030EP. | Larger DO-214AC package (5.3 mm × 2.7 mm) - requires 40% more board area and has higher Rth(j-a). | Choose when legacy DO-214AC footprint is fixed and marginal VF increase is acceptable. |
| RB055LAM-40 (ROHM) | 40 V VR, 3 A IF(AV), VF = 450 mV @ 3 A - matches PMEG4030EP closely but lacks guard ring structure. | SOD-123FL package - smaller footprint but no cathode thermal pad; Rth(j-sp) not specified. | Choose for ultra-compact layouts where thermal pad routing is impractical and stress protection is secondary. |
Compared with SS34 and RB055LAM-40, the PMEG4030EP uniquely combines lowest VF, integrated guard ring, and SOD128 thermal pad - making it optimal for high-density, high-reliability 3–5 V power rails where efficiency and surge resilience are jointly critical.
Availability
PMEG4030EP is available at Aetrix Electronics and suitable for low-voltage rectification, high-efficiency DC-to-DC conversion, and reverse polarity protection requiring stable component supply across industrial control, consumer power adapters, and portable electronics production.
Supply support for PMEG4030EP 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 and logic devices for automotive, industrial, and mobile markets.
The PMEG4030EP belongs to Nexperia's low-VF Schottky rectifier product line, engineered specifically for high-current, low-loss power conversion in space-constrained SMD applications where thermal management and reliability under transient stress are paramount.
FAQ
What is the maximum allowable solder point temperature for PMEG4030EP during reflow?
The datasheet specifies Tsp ≤ 140 °C for continuous 3 A operation. During reflow, peak temperature must not exceed 260 °C for ≤ 30 seconds (per J-STD-020), with the cathode solder point monitored to avoid exceeding 140 °C sustained thermal stress that degrades long-term reliability.
Can PMEG4030EP be used in automotive applications?
No - PMEG4030EP is not AEC-Q200 qualified and lacks automotive-grade screening, temperature cycling validation, or guaranteed operation beyond 125 °C ambient. It is intended for industrial, consumer, and computing applications only; automotive use requires explicit Nexperia automotive-qualified equivalents.
How does the guard ring improve reliability in real-world circuits?
The integrated guard ring mitigates edge breakdown under high dv/dt transients and localized electric field concentration, reducing failure rate in unregulated input stages exposed to load dump or inductive kickback - confirmed by Nexperia's accelerated life testing showing >2× improvement in surge endurance vs. non-guarded equivalents.
Is the SOD128 footprint compatible with standard pick-and-place equipment?
Yes - the CFP5 (SOD128) package meets IPC-7351B standard dimensions (3.8 mm × 2.6 mm × 1.0 mm) and uses 0.6 mm lead width with 4.0 mm pitch; all major placement machines (Fuji, Yamaha, Mycronic) support it with standard nozzle and vision calibration profiles.
PMEG4030EP,115 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- SOD-128
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 40 V
- Current - Average Rectified (Io):
- 3A
- Voltage - Forward (Vf) (Max) @ If:
- 490 mV @ 3 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 200 µA @ 40 V
- Capacitance @ Vr, F:
- 350pF @ 1V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-128/CFP5
- Operating Temperature - Junction:
- 150°C (Max)
PMEG4030EP,115 FAQ
1.How can I place an order for PMEG4030EP,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for PMEG4030EP,115 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 PMEG4030EP,115 reliable?
The price and inventory of PMEG4030EP,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PMEG4030EP,115 is usually 5 days.
3.What payment methods are accepted for PMEG4030EP,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PMEG4030EP,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PMEG4030EP,115?
PMEG4030EP,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PMEG4030EP,115 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 PMEG4030EP,115?
For technical support, including PMEG4030EP,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PMEG4030EP,115 requirements.
6.How does Aetrix verify that PMEG4030EP,115 is sourced from the original manufacturer or authorized distributors?
All PMEG4030EP,115 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 PMEG4030EP,115 meets industry standards.
7.What is the process for return or replacement of PMEG4030EP,115?
All PMEG4030EP,115 units undergo pre-shipment inspection (PSI). If there is an issue with PMEG4030EP,115, 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 PMEG4030EP,115 part is unused and in its original packaging.
Return procedure for PMEG4030EP,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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