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Nexperia USA Inc. PMEG4030ER/8X
- Part No.:
- PMEG4030ER/8X
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Diodes
- Package:
- SOD-123W
- Datasheet:
-
PMEG4030ER/8X.pdf
- Description:
- DIODE SCHOTTKY 40V 3A SOD123W
- Quantity:
- Payment:
- Shipping:
Inventory:2,142
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Product details
Overview
PMEG4030ER/8X from Nexperia is a planar Schottky barrier rectifier with integrated guard ring for stress protection, designed for low-voltage, high-efficiency DC-to-DC conversion and reverse polarity protection. It delivers 3 A average forward current at 40 V reverse voltage, with typical forward voltage of 460 mV at 3 A and 25 °C junction temperature, housed in a compact SOD123W (CFP3) surface-mount package.
For engineers reviewing the PMEG4030ER/8X datasheet, PMEG4030ER/8X pinout, PMEG4030ER/8X application, or PMEG4030ER/8X equivalent, key selection criteria include low VF performance under 3 A load, thermal resistance to solder point (18 K/W), reverse leakage ≤100 µA at 40 V, and compatibility with FR4 or ceramic PCB layouts using standard SOD123W footprints.
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 planar structure with integrated guard ring improves robustness against electrical overstress and transient voltage spikes.
The device exhibits low capacitance (95 pF at 10 V, 1 MHz) and fast switching behavior due to absence of minority-carrier storage, making it suitable for high-frequency SMPS topologies operating at 20 kHz square-wave conditions with 0.5 duty cycle.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VR | 40 V maximum reverse voltage - sets upper limit for blocking capability in low-voltage bus protection or flyback snubber circuits |
| IF(AV) | 3 A average forward current - supports continuous conduction mode in 5–12 V output DC-DC converters delivering up to ~36 W |
| VF @ 3 A, 25 °C | 460–540 mV - enables <1.6 W conduction loss at full load, critical for thermally constrained portable or sealed power modules |
| IR @ 40 V, 25 °C | 25–100 µA - ensures minimal standby power loss in battery-powered reverse polarity guards |
| Rth(j-sp) | 18 K/W - allows direct thermal coupling to cathode pad, supporting >2.5 W dissipation on 1 cm² copper area without heatsink |
| Cd @ 10 V, 1 MHz | 95 pF - limits high-frequency displacement current, preserving efficiency in >500 kHz synchronous rectifier designs |
Pinout & Package
Encapsulated in SOD123W (CFP3) plastic SMD package: 2.6 mm × 1.7 mm × 1.0 mm body, flat lead profile optimized for automated placement and reflow soldering. Cathode marked by bar on top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (K) | Cathode | Connected to output/load side in forward conduction; marking bar identifies this terminal for polarity-sensitive layout |
| 2 (A) | Anode | Connected to input/source side; serves as primary current entry path during forward bias |
Key Features
| Feature | Design Value |
|---|---|
| Guard ring integration | Enhances ESD and surge immunity without increasing footprint-critical for industrial I/O protection circuits |
| Clip-bond construction | Reduces thermal resistance by 30% vs. wire-bond equivalents, enabling higher power density in space-constrained DC-DC modules |
| SOD123W package | Enables 0.3 mm lead pitch assembly and compatibility with IPC-7351B footprint standards for reliable reflow yield |
| Low VF across temperature range | Maintains ≤540 mV at 3 A up to 125 °C-reduces thermal runaway risk in ambient-temperature-variable applications |
Applications
| USB Power Delivery Protection | Point-of-Load DC-DC Converter |
|---|---|
Use Scenario: Prevents damage from reversed USB-C cable insertion in portable chargers and docking stations. IC Role / Device Role / Timing Role: Unidirectional current gate placed between connector and buck converter input. Use Value: 460 mV VF minimizes voltage drop across protection path, preserving ≥4.8 V at 3 A load for PD 3.0 compliance. |
Use Scenario: Output rectification in 12 V to 3.3 V/5 V synchronous buck converters for FPGA or SoC power rails. IC Role / Device Role / Timing Role: Freewheeling diode in non-synchronous configuration or OR-ing element in redundant supply paths. Use Value: 95 pF capacitance and fast recovery enable stable operation at 1–2 MHz switching frequencies without ringing-induced EMI. |
| Industrial Sensor Node Power | Reverse Polarity Backup Supply |
Use Scenario: Input-stage rectification for energy-harvesting circuits powering LoRaWAN or NB-IoT sensors from piezoelectric or solar sources. IC Role / Device Role / Timing Role: Low-leakage AC-to-DC front-end in ultra-low-quiescent systems. Use Value: 25 µA max IR at 40 V ensures <1 µW standby loss-extending battery life beyond 10 years in maintenance-free deployments. |
Use Scenario: Redundant 24 V DC backup path activated only when main supply fails or reverses polarity in PLC I/O modules. IC Role / Device Role / Timing Role: Automatic failover switch via series-connected Schottky diodes. Use Value: 3 A IF(AV) rating supports peak loads up to 72 W while maintaining <1.5 °C/W effective thermal resistance on FR4 with 1 cm² cathode pad. |
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 NSR4030HT1G | Same 40 V VR, 3 A IF(AV), but VF = 490–570 mV @ 3 A; Rth(j-a) = 200 K/W (FR4) | Higher VF increases conduction loss by ~0.1 W at full load; less suitable for thermally dense 5 V rail designs | Select when legacy ON Semi BOM alignment required and thermal margin exceeds 10 °C |
| Vishay SS34HM3/85A | 40 V VR, 3 A IF(AV), VF = 500 mV typ @ 3 A; SOD-123 package (not SOD123W); Rth(j-sp) not specified | SOD-123 has taller profile (1.3 mm vs. 1.0 mm) and no documented clip-bond thermal enhancement | Prefer for cost-sensitive consumer applications where 0.3 mm height reduction is non-critical |
Compared with NSR4030HT1G and SS34HM3/85A, PMEG4030ER/8X offers the lowest VF (460 mV typ), tightest thermal resistance to solder point (18 K/W), and SOD123W's lower profile-making it optimal for ultra-thin power modules requiring <1 mm board clearance and <1.5 W dissipation.
Availability
PMEG4030ER/8X is available at Aetrix Electronics and suitable for USB power delivery protection, point-of-load DC-DC converters, and industrial sensor node power systems requiring stable component supply, consistent parametric performance, and long-term manufacturing continuity.
Supply support for PMEG4030ER/8X 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 and industrial-grade components.
The PMEG4030ER belongs to Nexperia's low-VF Schottky rectifier product line, engineered specifically for high-efficiency, space-constrained power conversion in consumer, computing, and industrial equipment where thermal density and voltage headroom are critical.
FAQ
What is the maximum allowable junction temperature for PMEG4030ER/8X?
The absolute maximum junction temperature is 150 °C per IEC 60134 limiting values. Operation above this threshold risks permanent degradation of the Schottky barrier. Derating curves in Figures 9–12 show that at 3 A average current, ambient temperature must remain below 85 °C on FR4 with standard footprint, or below 110 °C with 1 cm² cathode pad, to maintain Tj ≤ 150 °C.
Does PMEG4030ER/8X meet AEC-Q101 automotive qualification?
No. The January 2023 datasheet revision explicitly removed "AEC-Q101 qualified" from the features list. This part is intended for industrial, computing, and consumer applications only. For automotive use, Nexperia recommends alternatives such as PNE20060PS or PMEG3020CPA, which carry full AEC-Q101 certification and extended temperature validation.
How does the SOD123W package differ from standard SOD-123 in layout and thermal performance?
SOD123W features a wider, flatter lead structure (2.6 mm × 1.7 mm vs. 2.8 mm × 1.8 mm for SOD-123) and optimized internal clip-bonding, resulting in 18 K/W Rth(j-sp) versus ~35–45 K/W for conventional wire-bonded SOD-123 variants. Its reduced height (1.0 mm vs. 1.3 mm) also lowers center-of-gravity for improved mechanical reliability during board flexure or vibration.
Can PMEG4030ER/8X be used in parallel configurations for higher current handling?
Parallel operation is not recommended without external balancing-Schottky VF mismatch (±80 mV over temperature) causes current sharing imbalance exceeding 30% at 3 A total load. If required, use matched lots with VF binning data and add small series resistors (≤10 mΩ) per diode to force proportional current division and prevent thermal runaway.
PMEG4030ER/8X Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- SOD-123W
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 40 V
- Current - Average Rectified (Io):
- 3A
- Voltage - Forward (Vf) (Max) @ If:
- 540 mV @ 3 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 100 µA @ 40 V
- Capacitance @ Vr, F:
- 95pF @ 10V, 1MHz
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-123W
- Operating Temperature - Junction:
- 150°C (Max)
PMEG4030ER/8X FAQ
1.How can I place an order for PMEG4030ER/8X through Aetrix?
Please submit a Request for Quotation (RFQ) for PMEG4030ER/8X 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 PMEG4030ER/8X reliable?
The price and inventory of PMEG4030ER/8X are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PMEG4030ER/8X is usually 5 days.
3.What payment methods are accepted for PMEG4030ER/8X?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PMEG4030ER/8X transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PMEG4030ER/8X?
PMEG4030ER/8X orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PMEG4030ER/8X 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 PMEG4030ER/8X?
For technical support, including PMEG4030ER/8X datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PMEG4030ER/8X requirements.
6.How does Aetrix verify that PMEG4030ER/8X is sourced from the original manufacturer or authorized distributors?
All PMEG4030ER/8X 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 PMEG4030ER/8X meets industry standards.
7.What is the process for return or replacement of PMEG4030ER/8X?
All PMEG4030ER/8X units undergo pre-shipment inspection (PSI). If there is an issue with PMEG4030ER/8X, 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 PMEG4030ER/8X part is unused and in its original packaging.
Return procedure for PMEG4030ER/8X:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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