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Nexperia USA Inc. PMEG40T30ERX
- Part No.:
- PMEG40T30ERX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Diodes
- Package:
- SOD-123W
- Datasheet:
-
PMEG40T30ERX.pdf
- Description:
- DIODE SCHOTTKY 40V 3A SOD123W
- Quantity:
- Payment:
- Shipping:
Inventory:12,778
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Product details
Overview
PMEG40T30ERX from Nexperia is a 40 V, 3 A Trench MEGA Schottky barrier rectifier in CFP3 (SOD123W) package, designed for low-voltage, high-efficiency DC-to-DC conversion and freewheeling applications. It delivers VF = 460–525 mV at IF = 3 A and 25 °C, IR ≤ 28 µA at VR = 40 V, and operates up to TJ = 175 °C with clip-bonded thermal performance.
For engineers reviewing the PMEG40T30ERX datasheet, PMEG40T30ERX pinout, PMEG40T30ERX application, or PMEG40T30ERX equivalent, key selection criteria include forward voltage drop at rated current, reverse leakage under full-rated voltage, thermal resistance to solder point (Rth(j-sp) = 18 K/W), and compatibility with reflow/wave soldering on standard FR4 PCBs.
Technical Context
This Schottky rectifier uses Trench MEGA technology to achieve low VF and low IR simultaneously-enabling high efficiency in compact power stages. Its clip-bonded construction reduces thermal resistance and improves power handling versus wire-bonded equivalents.
The device exhibits step-recovery trr = 18 ns and ramp-recovery trr = 12 ns, confirming fast switching behavior suitable for high-frequency SMPS topologies. Diode capacitance Cd = 240 pF at VR = 10 V supports stable operation in resonant and synchronous rectifier circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VR | 40 V maximum reverse voltage - defines safe blocking capability in 36 V nominal bus systems |
| IF(AV) | 3 A average forward current - supports continuous conduction mode operation in 12–24 V DC/DC converters |
| VF @ 3 A | 460–525 mV at 25 °C - enables <1.6 W conduction loss at full load, reducing heatsink requirements |
| IR @ 40 V | 8–28 µA at 25 °C - ensures minimal standby power loss in reverse polarity protection circuits |
| Rth(j-sp) | 18 K/W - allows direct thermal coupling to PCB copper, enabling >1.15 W dissipation with 1 cm² cathode pad |
| trr (step) | 18 ns - minimizes switching loss and EMI in 500 kHz–1 MHz buck/flyback designs |
| Package | CFP3 (SOD123W), 2.6 × 1.7 × 1.0 mm - ultra-flat SMD footprint compatible with automated assembly and space-constrained layouts |
Pinout & Package
Encapsulated in a CFP3 (SOD123W) surface-mount plastic package with two terminals and a flat, low-profile outline optimized for thermal and mechanical reliability on FR4 PCBs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (K) | Cathode | Main current exit terminal; connected to PCB copper pour for thermal management and low-inductance return path |
| 2 (A) | Anode | Current entry terminal; routed to switch node or input rail; requires controlled trace impedance in high-dI/dt paths |
Key Features
| Feature | Design Value |
|---|---|
| Trench MEGA Schottky architecture | Simultaneously achieves low VF and low IR-critical for high-efficiency, low-heat-generation rectification |
| Clip-bonded construction | Reduces Rth(j-sp) to 18 K/W and increases IFSM to 40 A-supports robust surge handling without bond-wire failure |
| CFP3 (SOD123W) package | 2.6 × 1.7 mm footprint with 1.0 mm height-enables dense layout in portable and PoE-powered devices |
| Reflow- and wave-solder compatible | Validated footprint per Nexperia sod123w_fr/sod123w_fw-eliminates process qualification risk for volume manufacturing |
| Junction temperature rating | 175 °C max TJ-allows operation in sealed enclosures or high-ambient industrial environments without derating |
Applications
| Low-Voltage DC/DC Converter | Reverse Polarity Protection |
|---|---|
|
Use Scenario: Secondary-side synchronous rectification in 12 V → 3.3 V/5 V buck converters for FPGA or microcontroller power rails. IC Role / Device Role / Timing Role: Low-loss freewheeling diode replacing MOSFET gate drive complexity in cost-sensitive designs. Use Value: VF ≤ 525 mV at 3 A cuts conduction loss by ~40% vs. standard Schottky alternatives, improving full-load efficiency to >92%. |
Use Scenario: Input-stage protection for USB-C PD adapters and industrial sensors exposed to field wiring errors. IC Role / Device Role / Timing Role: Series-blocking rectifier placed before LDO or DC/DC controller to prevent damage from reversed input polarity. Use Value: IR ≤ 28 µA at 40 V ensures <1.1 µW standby power penalty-preserving battery life in always-on monitoring nodes. |
| High-Frequency SMPS Freewheeling | Low-Power Consumption IoT Node |
|
Use Scenario: Freewheel path in 1 MHz peak-current-mode boost converters powering white LED strings in smart lighting modules. IC Role / Device Role / Timing Role: Fast-recovery (trr = 12–18 ns) Schottky clamp managing inductor flyback energy with minimal ringing. Use Value: Cd = 240 pF at 10 V limits capacitive loading on switch node, preserving control loop stability without snubber networks. |
Use Scenario: Power-path isolation in coin-cell–powered BLE beacons and environmental sensors operating at −40 °C to +85 °C. IC Role / Device Role / Timing Role: Reverse-blocking element in dual-supply (battery + energy harvester) architectures. Use Value: VF = 515 mV at −40 °C and 3 A ensures predictable startup margin and runtime consistency across extended temperature range. |
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 VR = 40 V, IF(AV) = 3 A, but VF = 500–580 mV at 3 A; Rth(j-a) = 240 K/W (vs. 130 K/W for PMEG40T30ERX) | Limited to lower-power or forced-air-cooled applications due to higher thermal resistance | Prefer when legacy ON Semi BOM alignment is required and thermal budget permits higher VF |
| Vishay VSS8020M | VR = 20 V only; IF(AV) = 3 A; VF = 390–450 mV; SOD-123FL package (slightly taller, 1.2 mm) | Not suitable for 36 V bus systems; optimized for ≤12 V inputs only | Select only for 5–12 V applications where lowest possible VF outweighs voltage rating needs |
Compared with NSR4030HT1G and VSS8020M, PMEG40T30ERX uniquely balances 40 V rating, sub-525 mV VF, and 18 K/W Rth(j-sp) in a 1.0 mm profile-making it optimal for thermally constrained, wide-input industrial DC/DC modules.
Availability
PMEG40T30ERX 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 automotive-adjacent industrial, PoE-powered, and battery-operated designs.
Supply support for PMEG40T30ERX 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 delivering high-performance, reliable discrete, logic, and MOSFET solutions with focus on efficiency, miniaturization, and manufacturability.
This device belongs to Nexperia's Trench MEGA Schottky rectifier product line, engineered specifically for high-efficiency, low-profile power conversion in space- and thermal-constrained applications such as consumer adapters, industrial SMPS, and IoT edge nodes.
FAQ
Is PMEG40T30ERX suitable for automotive applications?
No. Per Nexperia's revision history (v.3, April 2023), this part is explicitly designated non-automotive. It lacks AEC-Q101 qualification, automotive-grade screening, and guaranteed PPAP documentation. For automotive use, select the -Q qualified variant (e.g., PMEG40T30ERX-Q) or consult Nexperia's automotive portfolio directly.
What is the maximum allowable solder point temperature during reflow?
The absolute maximum solder point temperature is not specified separately, but the device is qualified for standard lead-free reflow profiles per J-STD-020. Peak temperature must not exceed 260 °C for ≤30 seconds, with ramp rates ≤3 °C/s. The recommended footprint (sod123w_fr) and thermal pad design ensure safe thermal transfer without exceeding TJ = 175 °C.
Does PMEG40T30ERX have a specified reverse recovery charge (Qrr)?
No Qrr value is published in the datasheet. As a Schottky barrier rectifier, it exhibits majority-carrier conduction and negligible stored charge-hence Qrr is effectively zero. The listed trr values (12–18 ns) reflect parasitic junction capacitance discharge timing, not minority-carrier recovery, making it inherently suitable for high-frequency switching without Qrr-related losses.
Can PMEG40T30ERX replace a standard SOD-123 Schottky in existing layouts?
Yes-CFP3 (SOD123W) is a drop-in mechanical replacement for standard SOD-123, sharing identical 2.6 × 1.7 mm body dimensions and 1.0 mm height. However, its cathode tab extends beneath the package for enhanced thermal conduction; the recommended footprint (sod123w_fr) adds a 1 cm² thermal pad, which must be implemented to realize the full 1.15 W power rating.
PMEG40T30ERX 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):
- 3A
- Voltage - Forward (Vf) (Max) @ If:
- 460 mV @ 3 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 18 ns
- Current - Reverse Leakage @ Vr:
- 28 µA @ 40 V
- Capacitance @ Vr, F:
- 560pF @ 1V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-123W
- Operating Temperature - Junction:
- 175°C (Max)
PMEG40T30ERX FAQ
1.How can I place an order for PMEG40T30ERX through Aetrix?
Please submit a Request for Quotation (RFQ) for PMEG40T30ERX 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 PMEG40T30ERX reliable?
The price and inventory of PMEG40T30ERX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PMEG40T30ERX is usually 5 days.
3.What payment methods are accepted for PMEG40T30ERX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PMEG40T30ERX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PMEG40T30ERX?
PMEG40T30ERX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PMEG40T30ERX 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 PMEG40T30ERX?
For technical support, including PMEG40T30ERX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PMEG40T30ERX requirements.
6.How does Aetrix verify that PMEG40T30ERX is sourced from the original manufacturer or authorized distributors?
All PMEG40T30ERX 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 PMEG40T30ERX meets industry standards.
7.What is the process for return or replacement of PMEG40T30ERX?
All PMEG40T30ERX units undergo pre-shipment inspection (PSI). If there is an issue with PMEG40T30ERX, 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 PMEG40T30ERX part is unused and in its original packaging.
Return procedure for PMEG40T30ERX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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