Nexperia USA Inc. PMEG2030CERX
- Part No.:
- PMEG2030CERX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Diodes
- Package:
- SOD-123W
- Datasheet:
-
PMEG2030CERX.pdf
- Description:
- PMEG2030CER/SOD123W/SOD2
- Quantity:
- Payment:

- Shipping:

Inventory:2,660
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Product details
Overview
PMEG2030CERX from Nexperia is a planar Schottky barrier rectifier in CFP3 (SOD123W) surface-mount package, designed for low-voltage, high-efficiency DC/DC conversion and reverse polarity protection. It delivers 3 A average forward current at ≤161 °C solder point temperature, 20 V reverse voltage rating, and typ. 510 mV forward voltage at 3 A and 25 °C - enabling compact, thermally efficient power stages in space-constrained industrial and consumer SMPS.
For engineers reviewing the PMEG2030CERX datasheet, PMEG2030CERX pinout, PMEG2030CERX application, or PMEG2030CERX equivalent, key selection criteria include its low VF at high IF, clip-bond thermal performance, SOD123W footprint compatibility, and verified reverse recovery time of 5.5 ns under step-recovery conditions.
Technical Context
This Schottky diode uses a planar metal–semiconductor junction with optimized barrier height and epitaxial layer design to achieve low forward voltage while maintaining stable reverse leakage up to 125 °C. Its clip-bond construction directly connects the die cathode to the exposed copper tab, reducing thermal resistance to 18 K/W (junction-to-solder-point).
The device exhibits negligible reverse recovery charge (Qrr = 2.1 nC) and fast trr (5.5 ns), making it suitable for high-frequency switching topologies where diode switching loss must be minimized. Diode capacitance drops from 145 pF at 1 V to 51 pF at 10 V reverse bias, supporting stable operation in resonant and synchronous rectifier circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VR | 20 V maximum reverse voltage - defines safe blocking capability in low-voltage bus applications like 12 V or 5 V rails. |
| IF(AV) | 3 A average forward current at δ = 0.5, 20 kHz square wave, Tsp ≤ 161 °C - supports continuous conduction mode in mid-power SMPS. |
| VF | 510–580 mV typ./max at IF = 3 A, pulsed, 25 °C - reduces conduction loss by ~30% vs. standard silicon diodes at same current. |
| IR | 8–50 µA max at VR = 20 V, 25 °C; 5–25 mA max at 125 °C - enables stable operation in thermally demanding environments without thermal runaway. |
| trr | 5.5 ns typical reverse recovery time (step recovery) - eliminates switching tail current, minimizing EMI and MOSFET turn-on loss in synchronous designs. |
| Rth(j-sp) | 18 K/W thermal resistance junction-to-solder-point - enables 1.15 W power dissipation on 1 cm² cathode pad, critical for board-level thermal management. |
| Cd | 145 pF at VR = 1 V, 1 MHz - impacts snubber design and high-frequency impedance in flyback or LLC resonant converters. |
Pinout & Package
Encapsulated in CFP3 (SOD123W) plastic SMD package: 2.6 mm × 1.7 mm × 1.0 mm body, flat lead profile, single-sided copper FR4 mounting, cathode marked by bar.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (K) | Cathode | Main current exit terminal; connected to exposed copper tab for low-inductance, low-thermal-resistance heat path to PCB. |
| 2 (A) | Anode | Current entry terminal; bonded via wire or clip; routed to input-side switching node in buck or flyback configurations. |
Key Features
| Feature | Design Value |
|---|---|
| Low forward voltage | 510 mV typ. at 3 A ensures <1.5 W conduction loss in 12 V/3 A output stage, improving efficiency over Si alternatives. |
| Clip-bond thermal architecture | 18 K/W Rth(j-sp) enables higher sustained current on minimal copper area - no heatsink required for ≤3 A DC operation. |
| Fast reverse recovery | 5.5 ns trr and 2.1 nC Qrr reduce switching losses in >500 kHz converters, easing EMI filter design. |
| SOD123W footprint compatibility | Standardized 2.6 mm × 1.7 mm outline allows drop-in replacement of legacy Schottkys without PCB redesign. |
| High surge tolerance | 50 A non-repetitive peak forward current (tp = 8.3 ms) withstands inrush and fault transients in power supply inputs. |
Applications
| USB-C Power Delivery Input Stage | 12 V Automotive Accessory Rail |
|---|---|
|
Use Scenario: Reverse polarity protection at 20 V/3 A USB PD 3.1 sink input, before buck converter. IC Role / Device Role / Timing Role: Unidirectional blocking diode preventing damage from miswired adapters. Use Value: 510 mV VF minimizes voltage drop and heat generation during full-load operation, preserving >98% input voltage margin. |
Use Scenario: Low-loss OR-ing diode in dual-battery automotive accessory module (e.g., infotainment backup supply). IC Role / Device Role / Timing Role: High-speed isolation switch ensuring seamless switchover between main and auxiliary battery sources. Use Value: 5.5 ns trr prevents cross-conduction during microsecond-scale source transitions, eliminating shoot-through risk. |
| Industrial 24 V DC/DC Converter Output | Portable Medical Device Charging Circuit |
|
Use Scenario: Secondary-side rectification in isolated 24 V → 5 V flyback converter powering PLC I/O modules. IC Role / Device Role / Timing Role: Synchronous rectifier replacement in quasi-resonant topology operating at 300 kHz. Use Value: 145 pF Cd at 1 V enables clean zero-voltage switching transition, reducing MOSFET gate drive loss and EMI. |
Use Scenario: Reverse current blocking in Li-ion battery charging path with dual-input (USB + wall adapter) selection. IC Role / Device Role / Timing Role: Low-leakage isolation diode preventing battery discharge through inactive input path. Use Value: 8 µA max IR at 25 °C ensures <1 µA standby drain - extending shelf life of sealed medical devices beyond 12 months. |
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 NSS20300DSW3T1G | Same 20 V/3 A rating but VF = 550 mV min at 3 A; Rth(j-a) = 230 K/W (vs. 220 K/W here); SOD123W package. | Higher VF increases conduction loss by ~80 mW at 3 A; less suitable for thermally constrained 2-layer boards. | Select when cost sensitivity outweighs 50 mW efficiency gain and thermal margin is ≥15 °C. |
| Vishay VSKY220HM3/H | 20 V/2 A rating; VF = 490 mV typ. at 2 A; Rth(j-sp) = 22 K/W; SOD123W package. | Lower IF(AV) limits use to ≤2 A continuous loads; better VF but insufficient current headroom for 3 A designs. | Select only for derated 2 A applications where sub-500 mV VF is prioritized over current capacity. |
Compared with NSS20300DSW3T1G and VSKY220HM3/H, PMEG2030CERX offers the lowest VF at rated 3 A load and best thermal resistance to solder point - making it optimal for high-density, high-efficiency 3 A DC/DC outputs where board space and thermal budget are constrained.
Availability
PMEG2030CERX is available at Aetrix Electronics and suitable for USB-C power delivery input protection, industrial 24 V DC/DC converters, and portable medical device charging circuits requiring stable component supply and long-term manufacturability.
Supply support for PMEG2030CERX 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, serving automotive, industrial, and consumer markets with ISO/TS 16949-certified manufacturing.
This device belongs to Nexperia's Schottky Rectifier product line, engineered specifically for high-efficiency, low-VF power conversion in space- and thermal-constrained applications - emphasizing clip-bond thermal performance and fast switching integrity.
FAQ
What is the maximum junction temperature for continuous operation?
The PMEG2030CERX has a maximum junction temperature (Tj) of 175 °C per Absolute Maximum Ratings. Continuous operation at this limit requires strict thermal design: solder point temperature must remain ≤161 °C at 3 A average current, and ambient temperature must be controlled using the derating curves in Figure 8 and Figure 9 of the datasheet.
Can this diode replace a standard silicon rectifier in an existing 12 V SMPS?
Yes - with caveats. Its 20 V VR rating and 3 A IF(AV) match common 1N5822 replacements, and the SOD123W footprint is identical. However, verify that reverse leakage at elevated temperatures (up to 25 mA at 125 °C) does not affect control-loop stability, and confirm layout accommodates lower VF-induced shift in duty cycle.
Is the marking "N5" sufficient for full traceability?
Yes. "N5" is the official Nexperia marking code for PMEG2030CER (per Table 4), laser-etched on the cathode side. Combined with date code and reel label, it enables full traceability to wafer lot and assembly batch - confirmed in Nexperia's quality documentation and supported by Aetrix's traceable sourcing program.
Does this part support reflow soldering per JEDEC J-STD-020?
Yes. The CFP3 (SOD123W) package is qualified for standard Pb-free reflow per JEDEC J-STD-020D. Recommended peak temperature is 260 °C for ≤30 seconds, with ramp rates ≤3 °C/s pre-peak. Footprint dimensions and stencil recommendations are provided in Figure 16 of the datasheet.
PMEG2030CERX 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):
- 20 V
- Current - Average Rectified (Io):
- 3A
- Voltage - Forward (Vf) (Max) @ If:
- 580 mV @ 3 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 5.5 ns
- Current - Reverse Leakage @ Vr:
- 50 µA @ 20 V
- Capacitance @ Vr, F:
- 145pF @ 1V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-123W
- Operating Temperature - Junction:
- 175°C
PMEG2030CERX FAQ
1.How can I place an order for PMEG2030CERX through Aetrix?
Please submit a Request for Quotation (RFQ) for PMEG2030CERX 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 PMEG2030CERX reliable?
The price and inventory of PMEG2030CERX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PMEG2030CERX is usually 5 days.
3.What payment methods are accepted for PMEG2030CERX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PMEG2030CERX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PMEG2030CERX?
PMEG2030CERX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PMEG2030CERX 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 PMEG2030CERX?
For technical support, including PMEG2030CERX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PMEG2030CERX requirements.
6.How does Aetrix verify that PMEG2030CERX is sourced from the original manufacturer or authorized distributors?
All PMEG2030CERX 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 PMEG2030CERX meets industry standards.
7.What is the process for return or replacement of PMEG2030CERX?
All PMEG2030CERX units undergo pre-shipment inspection (PSI). If there is an issue with PMEG2030CERX, 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 PMEG2030CERX part is unused and in its original packaging.
Return procedure for PMEG2030CERX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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