My Inquiry
My Account
Nexperia USA Inc. PMEG4030EXEX
- Part No.:
- PMEG4030EXEX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Diodes
- Package:
- SOD-123F
- Datasheet:
-
PMEG4030EXEX.pdf
- Description:
- PMEG4030EXE/SOD123HP/SOD2
- Quantity:
- Payment:
- Shipping:
Inventory:12
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
PMEG4030EXEX from Nexperia is a planar Schottky barrier rectifier in CFP3-HP (SOD123HP) package, designed for low-voltage, high-efficiency power conversion. It delivers 3 A average forward current at 40 V reverse voltage, with typical forward voltage of 560 mV at 3 A and 25 °C, low leakage (10 µA at 40 V, 25 °C), and robust surge capability (50 A non-repetitive peak). It serves as a primary output rectifier in compact DC-DC converters.
For engineers reviewing the PMEG4030EXEX datasheet, PMEG4030EXEX pinout, PMEG4030EXEX application, or PMEG4030EXEX equivalent, key selection criteria include thermal resistance to solder point (6 K/W), junction-to-ambient performance on FR4 (115 K/W with 1 cm² cathode pad), reverse recovery time (4 ns step recovery), and clip-bond packaging enabling high power density in space-constrained SMPS designs.
Technical Context
This Schottky rectifier uses a planar metal-semiconductor junction optimized for minimal forward voltage drop and fast switching. Its clip-bond construction directly connects the die to the exposed cathode heatsink tab, reducing thermal resistance and supporting continuous operation up to 175 °C junction temperature.
The device exhibits negligible reverse recovery charge (2.5 nC) and ultrafast trr (4 ns step, 6 ns ramp), eliminating snubber circuits in high-frequency (>20 kHz) topologies. Diode capacitance is 115 pF at 1 V reverse bias, enabling stable operation in synchronous rectification and reverse polarity protection circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VR | 40 V maximum reverse voltage - sets safe operating limit in 36 V nominal bus applications with margin. |
| IF(AV) | 3 A average forward current - supports continuous conduction mode in 12–24 V output converters delivering ~36 W at 90 % efficiency. |
| VF @ 3 A | 560–630 mV typical at 25 °C - enables <1.9 W conduction loss per diode at full load, critical for thermal management in sealed enclosures. |
| IR @ 40 V, 125 °C | 6–25 mA reverse leakage - defines worst-case standby power loss in reverse polarity protection where diode blocks battery input. |
| Rth(j-sp) | 6 K/W thermal resistance junction-to-solder point - allows direct thermal coupling to PCB copper, enabling >1.3 W dissipation with minimal ΔT. |
| trr (step) | 4 ns reverse recovery time - eliminates switching losses and EMI in 500 kHz–1 MHz DC-DC controllers without requiring gate drive coordination. |
| Qrr | 2.5 nC reverse recovery charge - minimizes voltage overshoot and ringing during turn-off, reducing need for RC snubbers. |
Pinout & Package
Encapsulated in CFP3-HP (SOD123HP) surface-mount package: 2.80 mm × 1.80 mm × 0.90 mm body with exposed cathode heatsink tab for direct PCB thermal conduction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Marked bar) | Cathode (K) | Exposed metal tab - must be soldered to ≥1 cm² copper pour for rated thermal performance and mechanical anchoring. |
| 2 | Anode (A) | Top-side metallized pad - connects to switching node or input rail; requires controlled trace width to limit inductance in high-dI/dt paths. |
Key Features
| Feature | Design Value |
|---|---|
| Low VF with clip bond | 560 mV @ 3 A, 25 °C - reduces conduction loss by ~30 % vs. comparable wire-bond SOD-123 Schottkys. |
| Exposed cathode heatsink | 6 K/W Rth(j-sp) - enables 1.3 W power dissipation with only 8 °C rise above solder point, simplifying thermal design. |
| High surge robustness | 50 A IFSM (8.3 ms half-sine) - withstands inrush currents in hot-plug and battery-input systems without degradation. |
| Ultra-low Qrr | 2.5 nC - suppresses voltage spikes during turn-off in synchronous buck converters, improving MOSFET reliability. |
| Stable high-temp IR | 25 mA max IR @ 125 °C - ensures predictable leakage in automotive under-hood or industrial ambient environments. |
Applications
| DC-DC Converter Output Rectification | Reverse Polarity Protection |
|---|---|
|
Use Scenario: Primary freewheeling diode in 500 kHz synchronous buck converter delivering 3.3 V/3 A from 12 V input. IC Role / Device Role / Timing Role: Unidirectional current path during low-side FET off-time; conducts for 50 % duty cycle with sub-10 ns switching transitions. Use Value: 4 ns trr and 2.5 nC Qrr eliminate switching loss and reduce output voltage ripple by 12 % versus legacy Schottkys. |
Use Scenario: Input protection for USB-C PD power bank accepting 5–20 V input with accidental reverse connection risk. IC Role / Device Role / Timing Role: Series blocking element placed between connector and system rail; remains reverse-biased during fault condition. Use Value: 40 V VR rating provides 2× margin over 20 V max input; 10 µA IR at 25 °C limits standby drain to <0.2 µW. |
| SMPS Secondary Side | Low-Power AC-DC Adapter |
|
Use Scenario: Secondary-side rectifier in 24 V output flyback supplying PoE-powered switch with 2.5 A load. IC Role / Device Role / Timing Role: High-frequency rectifier synchronized to transformer reset; operates at 65 kHz with 0.5 duty cycle. Use Value: 560 mV VF reduces conduction loss by 0.8 W vs. standard diode, improving adapter efficiency from 84 % to 87 %. |
Use Scenario: Output rectifier in 5 V/1 A wall adapter using quasi-resonant flyback controller. IC Role / Device Role / Timing Role: Low-loss unidirectional path converting transformer AC to regulated DC; handles 100 % load continuously. Use Value: Clip-bond thermal path sustains 1.3 W dissipation at 70 °C ambient without derating, enabling smaller heatsink-free enclosure. |
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-3EPH04HM3 | Same 40 V/3 A rating but TO-277 package; Rth(j-a) = 45 K/W (vs. 115 K/W for PMEG4030EXEX on FR4); VF = 590 mV typ. | Requires external heatsink for >1.5 A continuous; unsuitable for ultra-thin PCBs due to 1.1 mm height. | Select when board-level thermal mass is limited but mechanical mounting flexibility is needed. |
| ON Semiconductor NSR30C40NXT5G | SOD-123 package (not HP); Rth(j-sp) = 12 K/W; VF = 540 mV typ.; Qrr = 3.0 nC. | Higher thermal resistance increases junction temperature by ~15 °C at 3 A; slightly faster VF but larger Qrr-induced overshoot. | Select when cost sensitivity outweighs thermal performance and layout space permits minor derating. |
Compared with VS-3EPH04HM3 and NSR30C40NXT5G, PMEG4030EXEX offers superior thermal integration via its exposed cathode tab and lowest Rth(j-sp), making it optimal for high-power-density, fanless, or thermally constrained designs where solder-point cooling is feasible.
Availability
PMEG4030EXEX is available at Aetrix Electronics and suitable for Switch Mode Power Supplies, DC-DC converters, and reverse polarity protection circuits requiring stable component supply across industrial, consumer, and networking product lifecycles.
Supply support for PMEG4030EXEX 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 specializing in high-volume, high-reliability discrete and logic devices, with leadership in advanced packaging and automotive-qualified components.
The PMEG4030EXEX belongs to Nexperia's CFP3-HP Schottky rectifier family, engineered specifically for high-efficiency, high-frequency power conversion in space-constrained applications where thermal performance and fast switching are critical.
FAQ
What is the maximum allowable solder point temperature for PMEG4030EXEX during reflow?
The device is qualified for standard lead-free reflow profiles with peak temperature up to 260 °C. The solder point (cathode tab) must not exceed 260 °C for more than 30 seconds. Thermal profile validation per J-STD-020 is required, and the recommended stencil thickness is 0.1 mm for optimal paste release and void control on the exposed tab.
Can PMEG4030EXEX replace a standard SOD-123 Schottky in an existing layout?
Yes, but only if the PCB footprint matches the CFP3-HP (SOD123HP) outline: 2.80 mm × 1.80 mm body with 1.05 mm × 0.75 mm cathode pad. Standard SOD-123 footprints lack the enlarged cathode land area and may cause thermal derating or solder joint fatigue. Use the footprint in Figure 16 (4.3 mm × 1.6 mm occupied area) for reliable assembly.
How does the 6 K/W Rth(j-sp) translate to real-world PCB thermal design?
A 1 cm² copper pad connected to the cathode tab achieves the specified 6 K/W. Reducing pad size to 0.5 cm² raises Rth(j-sp) to ~10 K/W, increasing junction temperature by ~25 °C at 3 A. For optimal performance, connect the cathode pad to internal ground planes via ≥4 thermal vias (0.3 mm diameter, 0.8 mm pitch) beneath the tab.
Is PMEG4030EXEX suitable for automotive applications?
No. This part is not AEC-Q200 qualified and lacks automotive-specific testing (e.g., HTOL, TCT, vibration). Nexperia explicitly states in Section 15 that non-automotive qualified products are unsuitable for safety-critical or life-support systems. For automotive use, specify PMEG4030EHX (AEC-Q200 Grade 1) instead.
PMEG4030EXEX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- SOD-123F
- 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:
- 630 mV @ 3 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 6 ns
- Current - Reverse Leakage @ Vr:
- 50 µA @ 40 V
- Capacitance @ Vr, F:
- 115pF @ 1V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-123HP
- Operating Temperature - Junction:
- 175°C
PMEG4030EXEX FAQ
1.How can I place an order for PMEG4030EXEX through Aetrix?
Please submit a Request for Quotation (RFQ) for PMEG4030EXEX 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 PMEG4030EXEX reliable?
The price and inventory of PMEG4030EXEX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PMEG4030EXEX is usually 5 days.
3.What payment methods are accepted for PMEG4030EXEX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PMEG4030EXEX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PMEG4030EXEX?
PMEG4030EXEX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PMEG4030EXEX 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 PMEG4030EXEX?
For technical support, including PMEG4030EXEX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PMEG4030EXEX requirements.
6.How does Aetrix verify that PMEG4030EXEX is sourced from the original manufacturer or authorized distributors?
All PMEG4030EXEX 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 PMEG4030EXEX meets industry standards.
7.What is the process for return or replacement of PMEG4030EXEX?
All PMEG4030EXEX units undergo pre-shipment inspection (PSI). If there is an issue with PMEG4030EXEX, 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 PMEG4030EXEX part is unused and in its original packaging.
Return procedure for PMEG4030EXEX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PMEG4030EXEX 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…
