My Inquiry
My Account
Nexperia USA Inc. PMEG4030ETRX
- Part No.:
- PMEG4030ETRX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Diodes
- Package:
- SOD-123W
- Datasheet:
-
PMEG4030ETRX.pdf
- Description:
- DIODE SCHOTTKY 40V 3A SOD123W
- Quantity:
- Payment:
- Shipping:
Inventory:3,000
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
PMEG4030ETRX from Nexperia is a planar Schottky barrier rectifier with integrated guard ring for stress protection, designed for high-temperature operation up to 175 °C junction temperature. It delivers 3 A average forward current at 40 V reverse voltage, with low 460–540 mV forward voltage at 3 A and 25 °C, enabling high-efficiency low-voltage DC-to-DC conversion in space-constrained SMD applications.
For engineers reviewing the PMEG4030ETRX datasheet, PMEG4030ETRX pinout, PMEG4030ETRX application, or PMEG4030ETRX equivalent, key selection criteria include thermal performance on FR4 vs ceramic PCBs, reverse leakage stability across −40 °C to 125 °C, and clip-bond packaging benefits for power density and solder-joint reliability in SMPS and reverse polarity protection circuits.
Technical Context
This Schottky diode employs a planar silicon die with integrated guard ring to suppress edge breakdown and improve robustness under transient stress. Its clip-bond construction enhances thermal conduction from junction to cathode tab, reducing Rth(j-sp) to 18 K/W when mounted on an FR4 board with 1 cm² cathode pad.
The device operates with zero minority-carrier storage, delivering ultrafast switching (no reverse recovery charge) and low noise in high-frequency SMPS topologies. Its capacitance ranges from 250 pF at 1 V to 95 pF at 10 V reverse bias, supporting stable operation in buck converter freewheeling paths.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| IF(AV) | 3 A - Sustained DC or square-wave output current capability at Tsp ≤ 165 °C on standard footprint |
| VR | 40 V - Maximum continuous reverse blocking voltage without avalanche or degradation |
| VF @ 3 A, 25 °C | 460–540 mV - Low conduction loss enabling >95% efficiency in 3.3 V/5 V buck converters |
| IR @ 40 V, 25 °C | 25–100 µA - Minimal leakage ensuring low standby power in battery-powered reverse polarity protection |
| Rth(j-a) (FR4) | 220 K/W - Thermal resistance limiting ambient-to-junction rise under free-air conditions |
| Cd @ 10 V, 1 MHz | 95 pF - Junction capacitance affecting high-frequency switching node ringing and EMI |
| Tj max | 175 °C - Extended junction temperature rating enabling operation in high-ambient industrial environments |
Pinout & Package
Encapsulated in the CFP3 (SOD123W) surface-mount plastic package: 2.6 mm × 1.7 mm × 1.0 mm body, flat leads, optimized for reflow soldering with recommended 0.1 mm stencil thickness.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (marked side) | Cathode (K) | Connected to negative rail or ground return path; marking bar identifies this terminal; primary heat-sinking interface via clip-bonded tab |
| 2 | Anode (A) | Connected to input or switching node; carries full forward current; minimal thermal contribution compared to cathode |
Key Features
| Feature | Design Value |
|---|---|
| Integrated guard ring | Suppresses edge electric field concentration, improving surge robustness and long-term reliability under repetitive voltage transients |
| Clip-bond technology | Reduces thermal resistance by 30% vs wire-bond equivalents, enabling higher power density in compact layouts |
| SOD123W footprint | Compatible with industry-standard 2.8 mm × 1.9 mm land pattern (reflow), minimizing PCB redesign effort |
| High-temperature rating | Rated for continuous operation at Tj = 175 °C, supporting use in under-hood automotive auxiliary modules and industrial motor drives |
Applications
| DC-DC Buck Converter Freewheeling Diode | Reverse Polarity Protection Circuit |
|---|---|
Use Scenario: Freewheeling path in 500 kHz synchronous buck regulator powering FPGA core voltage. IC Role / Device Role / Timing Role: Uncontrolled rectifier conducting during low-side switch off-time; no reverse recovery delay. Use Value: 460 mV VF minimizes conduction loss, while 95 pF capacitance limits switching node oscillation and EMI generation. |
Use Scenario: Input protection for USB-C PD sink circuit operating from ±12 V adapter input. IC Role / Device Role / Timing Role: Series-blocking diode placed between connector and LDO input; conducts only during correct polarity insertion. Use Value: 25 µA max IR at 12 V ensures <1 µW standby dissipation; 175 °C Tj rating supports enclosure temperatures up to 85 °C ambient. |
| High-Efficiency AC-DC Adapter Output Rectification | Low-Power IoT Sensor Node Power Path |
Use Scenario: Secondary-side rectification in 12 V/2 A flyback adapter for smart home hubs. IC Role / Device Role / Timing Role: Main output rectifier handling continuous 2 A load; thermally coupled to heatsink pad. Use Value: Clip-bond construction enables 2.14 W total power dissipation on FR4 with 1 cm² cathode pad, eliminating need for discrete heatsinks. |
Use Scenario: Battery backup path selector in BLE-enabled environmental sensor with coin-cell + USB dual supply. IC Role / Device Role / Timing Role: OR-ing diode isolating Li-ion battery from USB VBUS during charging; blocks reverse current. Use Value: 330 mV VF at 100 mA ensures <33 mW drop in battery discharge path, extending runtime by >8% versus standard Schottkys. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Vishay VS-3EYH04-M3 | Same 40 V VR, 3 A IF(AV), but VF = 520–600 mV @ 3 A; TO-277 package (larger, 4.5 mm × 2.6 mm) | Higher VF increases conduction loss in high-duty-cycle DC-DC; larger footprint limits layout flexibility | Select when legacy TO-277 mounting is required or when slightly higher VF is acceptable for cost-sensitive designs |
| ON Semiconductor NSR30C40NXT5G | 40 V VR, 3 A IF(AV), VF = 450–530 mV @ 3 A; same SOD123W package; lower IR (10 µA @ 40 V) | Better leakage performance suits battery-critical reverse protection; identical thermal profile | Prefer for ultra-low-power systems where sub-10 µA leakage is mandatory; otherwise functionally interchangeable |
Compared with VS-3EYH04-M3, PMEG4030ETRX offers lower VF and smaller footprint; versus NSR30C40NXT5G, it trades 15 µA higher IR for broader thermal derating margin above 125 °C and proven guard-ring reliability in surge-prone industrial inputs.
Availability
PMEG4030ETRX is available at Aetrix Electronics and suitable for high-efficiency DC-DC converters, reverse polarity protection circuits, and low-power consumption applications requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for PMEG4030ETRX 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 essential semiconductors including logic, discretes, MOSFETs, and ESD protection devices.
The PMEG4030ETRX belongs to Nexperia's high-temperature Schottky rectifier product line, engineered specifically for demanding power conversion and protection roles in industrial, computing, and consumer power supplies where thermal resilience and low VF are critical.
FAQ
Is PMEG4030ETRX qualified for automotive applications?
No. Per Nexperia's revision history, PMEG4030ETRX is explicitly non-automotive qualified and lacks AEC-Q101 certification. It is rated for industrial and consumer use only. Automotive alternatives-such as the PMEG4030ETRX-Q variant-are separately qualified and must be selected for vehicle applications.
What is the maximum allowable solder point temperature during reflow?
The datasheet specifies a maximum solder point temperature (Tsp) of 165 °C for sustained average forward current operation. During reflow, peak profile temperature must not exceed 260 °C for ≤10 seconds per JEDEC J-STD-020, consistent with SOD123W package specifications.
How does the guard ring affect surge withstand capability?
The integrated guard ring reduces electric field crowding at the die periphery, raising the device's non-repetitive peak forward surge current (IFSM) to 50 A (8.3 ms half-sine). This improves immunity to line transients and inrush events in SMPS input stages without external TVS clamping.
Can PMEG4030ETRX replace older PMEG4010 series diodes?
No direct replacement: PMEG4010 has 1 A IF(AV) and different thermal characteristics. PMEG4030ETRX supports 3× higher current and superior thermal resistance, but requires updated layout for higher current traces and thermal pads. Electrical substitution without thermal redesign risks premature failure.
PMEG4030ETRX 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:
- 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:
- 250pF @ 1V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-123W
- Operating Temperature - Junction:
- 175°C
PMEG4030ETRX FAQ
1.How can I place an order for PMEG4030ETRX through Aetrix?
Please submit a Request for Quotation (RFQ) for PMEG4030ETRX 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 PMEG4030ETRX reliable?
The price and inventory of PMEG4030ETRX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PMEG4030ETRX is usually 5 days.
3.What payment methods are accepted for PMEG4030ETRX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PMEG4030ETRX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PMEG4030ETRX?
PMEG4030ETRX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PMEG4030ETRX 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 PMEG4030ETRX?
For technical support, including PMEG4030ETRX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PMEG4030ETRX requirements.
6.How does Aetrix verify that PMEG4030ETRX is sourced from the original manufacturer or authorized distributors?
All PMEG4030ETRX 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 PMEG4030ETRX meets industry standards.
7.What is the process for return or replacement of PMEG4030ETRX?
All PMEG4030ETRX units undergo pre-shipment inspection (PSI). If there is an issue with PMEG4030ETRX, 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 PMEG4030ETRX part is unused and in its original packaging.
Return procedure for PMEG4030ETRX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PMEG4030ETRX Tags
-
1N4448X-TP
Micro Commercial Co
-
1N4148WX-TP
Micro Commercial Co
-
1N4148TR
onsemi
-
MMSD4148T1G
onsemi
-
MMBD914LT3G
onsemi
-
BAS16HT1G
onsemi
-
1N914BWT
onsemi
-
BAS21LT1G
onsemi
-
LL4148
onsemi
-
BAS16LT1G
onsemi
-
MMSD914T1G
onsemi
-
BAV21W-7-F
Diodes Incorporated
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
