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Nexperia USA Inc. PMEG40T10ERX
- Part No.:
- PMEG40T10ERX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Diodes
- Package:
- SOD-123W
- Datasheet:
-
PMEG40T10ERX.pdf
- Description:
- DIODE SCHOTTKY 40V 1A SOD123W
- Quantity:
- Payment:
- Shipping:
Inventory:1,075
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Product details
Overview
PMEG40T10ERX from Nexperia is a 40 V, 1 A Trench MEGA Schottky barrier rectifier in CFP3 (SOD123W) package, designed for low-voltage DC-to-DC conversion and freewheeling paths where low forward voltage (400–460 mV @ 1 A, 25 °C) and low reverse leakage (6–22 µA @ 40 V, 25 °C) are critical. It employs clip-bonding for high power capability and supports reflow/wave soldering in space-constrained SMD layouts.
For engineers reviewing the PMEG40T10ERX datasheet, PMEG40T10ERX pinout, PMEG40T10ERX application, or PMEG40T10ERX equivalent, key selection criteria include forward voltage at 1 A, thermal resistance to solder point (130 K/W), junction temperature rating (175 °C), and compatibility with standard SOD123W footprints on FR4 PCBs.
Technical Context
This Schottky rectifier uses Trench MEGA technology to achieve low VF and low IR simultaneously-enabling higher efficiency in low-voltage switching supplies. Its clip-bonded construction improves thermal transfer from die to cathode tab, supporting sustained 1 A average current at ambient temperatures up to 100 °C with proper PCB copper area.
The device exhibits ultrafast recovery (trr ≤ 11.5 ns, step recovery) and negligible minority-carrier storage, eliminating snubber requirements in high-frequency flyback and synchronous rectifier topologies. Diode capacitance is 145 pF @ 10 V, enabling stable operation up to several MHz in resonant converters.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Voltage (VR) | 40 V - Maximum blocking capability without breakdown; suitable for 24 V system rails with margin. |
| Average Forward Current (IF(AV)) | 1 A - Sustained DC or pulsed current handling with δ = 0.5, f = 20 kHz, on standard FR4 footprint. |
| Forward Voltage (VF) | 400–460 mV @ 1 A, 25 °C - Reduces conduction loss by >30% vs. standard Schottkys; critical for <5 V output regulation. |
| Reverse Leakage (IR) | 6–22 µA @ 40 V, 25 °C - Enables low standby power in battery-powered reverse polarity protection circuits. |
| Junction Temperature (Tj) | 175 °C - Allows operation in thermally demanding environments such as enclosed power modules or automotive under-hood zones. |
| Thermal Resistance (Rth(j-sp)) | 130 K/W - Measured to solder point with 1 cm² cathode pad; enables accurate thermal modeling for layout optimization. |
| Package | CFP3 (SOD123W) - 2.6 × 1.7 × 1.0 mm body; compatible with IPC-7351B footprint and automated placement. |
Pinout & Package
Encapsulated in a surface-mount CFP3 (SOD123W) plastic package with two terminals and flat leads optimized for thermal performance and board-level reliability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (K) | Cathode | Main current exit terminal; connected to PCB copper pour for thermal dissipation and low-inductance return path. |
| 2 (A) | Anode | Current entry terminal; routed with minimal trace length to reduce parasitic inductance in high-dI/dt switching nodes. |
Key Features
| Feature | Design Value |
|---|---|
| Trench MEGA Schottky technology | Enables simultaneous low VF (400 mV) and low IR (6 µA), reducing both conduction and standby losses. |
| Clip-bonding interconnect | Improves thermal conductivity from die to cathode tab, lowering Rth(j-sp) to 130 K/W vs. wire-bonded equivalents. |
| SOD123W footprint compatibility | Supports drop-in replacement in existing designs using industry-standard 2.9 × 4.4 mm reflow land pattern. |
| Ultrafast recovery (trr ≤ 11.5 ns) | Eliminates reverse recovery tail, preventing cross-conduction in synchronous rectifiers and reducing EMI. |
| Reflow- and wave-solderable | Qualified per J-STD-020 and J-STD-002; withstands peak reflow temps up to 260 °C for 30 s. |
Applications
| DC-DC Converter Output Rectification | Reverse Polarity Protection |
|---|---|
|
Use Scenario: Secondary-side rectification in 3.3 V/5 V buck converters operating at 500 kHz–1 MHz. IC Role / Device Role / Timing Role: Unidirectional current path replacing MOSFET synchronous rectifiers where gate drive complexity must be avoided. Use Value: 400 mV VF reduces conduction loss by 0.4 W vs. 1 A silicon diode, improving full-load efficiency by ≥1.2% at 5 V output. |
Use Scenario: Input protection for USB-C PD adapters and portable medical sensors powered from external 12 V sources. IC Role / Device Role / Timing Role: Series-blocking element placed before LDO or DC-DC input to prevent damage during incorrect cable insertion. Use Value: 6 µA IR at 12 V limits standby current to <0.1 µW, extending battery life in always-on monitoring devices. |
| Freewheeling Diode in Motor Drivers | Low-Power SMPS Auxiliary Supply |
|
Use Scenario: Flyback path for brushed DC motor H-bridge outputs driving 24 V, 500 mA loads. IC Role / Device Role / Timing Role: Provides low-loss current recirculation during PWM off-time, minimizing voltage spikes and MOSFET stress. Use Value: 11.5 ns trr prevents reverse recovery oscillation, reducing radiated emissions by >6 dBµV in CISPR-22 Class B testing. |
Use Scenario: Bias supply rectification for isolated flyback controllers powering gate drivers and optocouplers. IC Role / Device Role / Timing Role: Delivers clean, low-noise 15 V bias rail from transformer auxiliary winding with minimal filtering. Use Value: 145 pF capacitance at 10 V ensures stable regulation without resonance with typical 100 nF filter caps across 100 kHz–1 MHz range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Vishay VSSAF1M4-M3/84A | Same 40 V VR, 1 A IF(AV), but VF = 450–520 mV @ 1 A; Rth(j-a) = 250 K/W (free air). | Higher VF increases conduction loss in high-duty-cycle DC-DC outputs; less suitable for thermally constrained layouts. | Select when cost sensitivity outweighs 50 mV VF penalty and thermal management is not limiting. |
| ON Semiconductor NSR0140HT1G | 40 V VR, 1 A IF(AV), VF = 420–480 mV @ 1 A; SOD-123 package (not SOD123W); Rth(j-sp) not specified. | SOD-123 has smaller thermal pad (1.3 × 2.7 mm vs. 2.6 × 1.7 mm), limiting power handling above 0.7 A continuous. | Prefer for legacy SOD-123 footprint reuse; avoid in new designs requiring >0.8 A sustained current or <150 °C ambient. |
Compared with VSSAF1M4-M3/84A and NSR0140HT1G, PMEG40T10ERX delivers the lowest VF (400 mV typ) and best thermal performance (Rth(j-sp) = 130 K/W), making it optimal for compact, high-efficiency 1 A DC-DC and motor-drive freewheeling applications where thermal headroom is limited.
Availability
PMEG40T10ERX is available at Aetrix Electronics and suitable for DC-DC converter output rectification, reverse polarity protection, freewheeling diode implementation, and low-power SMPS auxiliary supply applications requiring stable component supply and consistent parametric performance across production lots.
Supply support for PMEG40T10ERX 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, logic, and MOSFET solutions for automotive, industrial, and consumer markets.
This device belongs to Nexperia's Trench MEGA Schottky rectifier product line, engineered specifically for high-efficiency, low-voltage power conversion where minimal forward voltage and leakage current are mandatory design constraints.
FAQ
What is the maximum allowable solder point temperature for PMEG40T10ERX during reflow?
The device is qualified for JEDEC Level 3 moisture sensitivity and supports peak reflow temperatures up to 260 °C for 30 seconds. The absolute maximum solder point temperature (Tsp) is 170 °C for continuous operation at 1 A average current, per limiting values table. Exceeding this risks long-term degradation of clip-bond integrity.
Can PMEG40T10ERX replace a standard silicon PN diode in a 24 V flyback snubber circuit?
Yes-its 40 V VR rating provides sufficient margin for 24 V systems with transient spikes, and its lack of reverse recovery charge eliminates snubber capacitor stress. However, verify that peak reverse voltage never exceeds 40 V, as Schottky breakdown is abrupt and non-recoverable beyond VR.
Does PMEG40T10ERX require derating when mounted on a 1 oz copper PCB without extended thermal pads?
Yes-on a standard FR4 PCB with single-sided 1 oz copper and no thermal pad, IF(AV) derates to 0.5 A at 70 °C ambient (per Fig. 8). For full 1 A operation, the datasheet requires either a 1 cm² cathode pad or forced airflow; otherwise, thermal runaway risk increases above 85 °C junction temperature.
Is PMEG40T10ERX automotive-qualified?
No-this part is explicitly marked as non-automotive qualified in the revision history (v.3, April 2023). It lacks AEC-Q101 qualification and automotive-grade screening. For automotive use, Nexperia offers the PMEG40T10ERQ series, which undergoes extended temperature cycling, HTOL, and ESD testing per AEC standards.
PMEG40T10ERX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- SOD-123W
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 40 V
- Current - Average Rectified (Io):
- 1A
- Voltage - Forward (Vf) (Max) @ If:
- 400 mV @ 1 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 11.5 ns
- Current - Reverse Leakage @ Vr:
- 22 µA @ 40 V
- Capacitance @ Vr, F:
- 350pF @ 1V, 1MHz
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-123W
- Operating Temperature - Junction:
- 175°C (Max)
PMEG40T10ERX FAQ
1.How can I place an order for PMEG40T10ERX through Aetrix?
Please submit a Request for Quotation (RFQ) for PMEG40T10ERX 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 PMEG40T10ERX reliable?
The price and inventory of PMEG40T10ERX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PMEG40T10ERX is usually 5 days.
3.What payment methods are accepted for PMEG40T10ERX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PMEG40T10ERX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PMEG40T10ERX?
PMEG40T10ERX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PMEG40T10ERX 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 PMEG40T10ERX?
For technical support, including PMEG40T10ERX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PMEG40T10ERX requirements.
6.How does Aetrix verify that PMEG40T10ERX is sourced from the original manufacturer or authorized distributors?
All PMEG40T10ERX 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 PMEG40T10ERX meets industry standards.
7.What is the process for return or replacement of PMEG40T10ERX?
All PMEG40T10ERX units undergo pre-shipment inspection (PSI). If there is an issue with PMEG40T10ERX, 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 PMEG40T10ERX part is unused and in its original packaging.
Return procedure for PMEG40T10ERX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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