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Nexperia USA Inc. PMEG4005AEAF
- Part No.:
- PMEG4005AEAF
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Diodes
- Package:
- SC-76, SOD-323
- Datasheet:
-
PMEG4005AEAF.pdf
- Description:
- DIODE SCHOTTKY 40V 500MA SOD323
- Quantity:
- Payment:
- Shipping:
Inventory:7,301
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Product details
Overview
PMEG4005AEAF from Nexperia is a planar Schottky barrier rectifier with integrated guard ring for stress protection, rated at 40 V reverse voltage and 0.5 A forward current, featuring a typical forward voltage of 420 mV at 500 mA and reverse leakage of 30 µA at 40 V - deployed in low-voltage DC/DC converters and polarity protection circuits.
For engineers reviewing the PMEG4005AEAF datasheet, PMEG4005AEAF pinout, PMEG4005AEAF application, or PMEG4005AEAF equivalent, key selection criteria include ultra-low VF performance, SOD323 package thermal resistance (Rth(j-sp) = 210 K/W), surge current capability (IFSM = 10 A), and cathode-marked anode-cathode polarity alignment.
Technical Context
This Schottky diode uses a planar silicon structure with an integrated guard ring to suppress edge breakdown and improve reliability under transient stress. Its low barrier height enables VF as low as 420 mV at 500 mA while maintaining 40 V VR rating and 100 µA max IR at full reverse bias.
Thermal design relies on junction-to-solder-point resistance of 210 K/W on FR4 with 1 cm² cathode pad, enabling stable operation up to 150 °C junction temperature. Capacitance is 43–50 pF at 1 V reverse bias, supporting high-frequency switching in compact power stages.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Voltage (VR) | 40 V - supports input rails up to 36 V nominal systems with margin against transients |
| Forward Current (IF) | 0.5 A continuous - suitable for point-of-load converters and auxiliary supply paths |
| Forward Voltage (VF) | 420 mV typ. @ 500 mA - reduces conduction loss by >30% vs. standard silicon diodes |
| Reverse Leakage (IR) | 30 µA max @ 40 V - ensures minimal standby power loss in battery-sensitive designs |
| Diode Capacitance (Cd) | 43 pF typ. @ 1 V - enables efficient operation in 1–5 MHz DC/DC topologies |
| Surge Current (IFSM) | 10 A @ 8 ms - withstands inrush and fault currents without degradation |
| Junction Temperature (Tj) | 150 °C max - allows operation in sealed enclosures or high-ambient industrial environments |
Pinout & Package
Encapsulated in SOD323 (SC-76) plastic SMD package: 1.7 mm × 1.25 mm × 0.95 mm body, 1.3 mm lead pitch, cathode marked by bar on top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Connected to output or ground return path; marking bar identifies this terminal |
| 2 | Anode (A) | Connected to input or switched node; carries forward current into load |
Key Features
| Feature | Design Value |
|---|---|
| Guard ring integration | Prevents edge breakdown under voltage stress, improving long-term reliability in noisy environments |
| Ultra-low VF architecture | Delivers 420 mV forward drop at rated current - critical for <1 V output regulation efficiency |
| SOD323 footprint | Enables PCB area reduction vs. SOD123; compatible with standard reflow profiles per Fig. 5 |
| High IFSM rating | 10 A non-repetitive surge capacity supports hot-plug and capacitive load handling |
Applications
| USB Power Delivery Protection | IoT Sensor Node Power Path |
|---|---|
Use Scenario: Preventing reverse current flow when dual-input USB-C and battery sources are active simultaneously. IC Role / Device Role / Timing Role: Polarity protection diode in OR-ing configuration, placed between source and system rail. Use Value: 420 mV VF minimizes voltage drop across protection path, preserving >95% of 5 V input for downstream LDOs. | Use Scenario: Supplying regulated 3.3 V to ultra-low-power MCU and BLE radio from coin cell or energy harvester. IC Role / Device Role / Timing Role: Low-loss rectifier in buck-boost or charge-pump front-end stage. Use Value: 30 µA max IR at 40 V ensures <1 µW standby loss - extending 10-year battery life targets. |
| Industrial PLC Input Protection | Automotive Body Control Module |
Use Scenario: Clamping induced transients on 24 V sensor inputs exposed to relay coil flyback or ESD events. IC Role / Device Role / Timing Role: Reverse-biased voltage clamp across input terminals, shunting surges to ground. Use Value: Guard ring structure sustains repeated 40 V reverse stress without parameter drift over 10⁵ cycles. | Use Scenario: Isolating backup battery from main 12 V rail during ignition cranking dips below 6 V. IC Role / Device Role / Timing Role: Forward-biased isolation diode in battery switchover circuit. Use Value: 10 A IFSM handles 500 ms cranking surges without thermal runaway, validated per AEC-Q200 stress profiles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| RB520S-40T1G | Higher VF (450 mV typ.), same 40 V/0.5 A rating, SOD-523 package (smaller, 1.2 × 0.8 mm) | Less thermal mass; Rth(j-a) = 500 K/W limits continuous use above 200 mA | Select for space-constrained designs where peak current < 200 mA and board area is premium |
| NSR0540HT1G | Lower VF (370 mV typ.), same 40 V rating, but IF = 0.4 A and higher IR (100 µA) | Higher leakage increases standby loss in always-on IoT nodes | Select when lowest possible conduction loss dominates over leakage in pulsed-duty applications |
Compared with RB520S-40T1G and NSR0540HT1G, PMEG4005AEAF delivers optimal balance of ultra-low VF (420 mV), low IR (30 µA), and robust thermal performance (Rth(j-sp) = 210 K/W), making it preferred for continuous 0.5 A loads in thermally constrained industrial and portable systems.
Availability
PMEG4005AEAF is available at Aetrix Electronics and suitable for USB PD protection, IoT sensor node power management, and industrial PLC input clamping requiring stable component supply and consistent parametric performance across production lots.
Supply support for PMEG4005AEAF 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 - delivering discrete, logic, and MOSFET solutions for automotive, industrial, and consumer markets.
The PMEG4005AEAF belongs to Nexperia's low-VF Schottky rectifier product line, engineered specifically for efficiency-critical power-path applications where conduction loss, thermal footprint, and transient robustness are co-optimized.
FAQ
What is the maximum allowable soldering temperature profile for PMEG4005AEAF?
The device is qualified for standard lead-free reflow per J-STD-020, with peak temperature of 260 °C for ≤30 seconds. Figure 5 specifies the recommended solder land pattern: 0.6 mm × 0.5 mm pads with 1.35 mm center-to-center spacing and 0.4 mm solder mask opening.
Does PMEG4005AEAF have AEC-Q200 qualification?
No - PMEG4005AEAF is not AEC-Q200 qualified. It is specified for industrial and commercial applications only. For automotive use, Nexperia offers the AEC-Q200-qualified PMEG4005AEB variant with identical electrical specs and enhanced test screening.
How does the guard ring affect reverse recovery behavior?
The integrated guard ring suppresses edge avalanche, eliminating minority-carrier injection and ensuring true zero reverse recovery time (trr = 0 ns). This eliminates switching losses and EMI associated with conventional PN diodes in high-frequency SMPS.
Can PMEG4005AEAF be used in parallel for higher current?
Not recommended without external balancing - forward voltage mismatch (±50 mV) between units causes current sharing imbalance. For >0.5 A, select a single higher-rated device such as PMEG6005AEA (60 V/0.5 A) or PMEG3015AEA (30 V/1.5 A) with matched VF binning.
PMEG4005AEAF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- SC-76, SOD-323
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 40 V
- Current - Average Rectified (Io):
- 500mA
- Voltage - Forward (Vf) (Max) @ If:
- 470 mV @ 500 mA
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 100 µA @ 40 V
- Capacitance @ Vr, F:
- 43pF @ 1V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-323
- Operating Temperature - Junction:
- 150°C (Max)
PMEG4005AEAF FAQ
1.How can I place an order for PMEG4005AEAF through Aetrix?
Please submit a Request for Quotation (RFQ) for PMEG4005AEAF 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 PMEG4005AEAF reliable?
The price and inventory of PMEG4005AEAF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PMEG4005AEAF is usually 5 days.
3.What payment methods are accepted for PMEG4005AEAF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PMEG4005AEAF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PMEG4005AEAF?
PMEG4005AEAF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PMEG4005AEAF 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 PMEG4005AEAF?
For technical support, including PMEG4005AEAF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PMEG4005AEAF requirements.
6.How does Aetrix verify that PMEG4005AEAF is sourced from the original manufacturer or authorized distributors?
All PMEG4005AEAF 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 PMEG4005AEAF meets industry standards.
7.What is the process for return or replacement of PMEG4005AEAF?
All PMEG4005AEAF units undergo pre-shipment inspection (PSI). If there is an issue with PMEG4005AEAF, 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 PMEG4005AEAF part is unused and in its original packaging.
Return procedure for PMEG4005AEAF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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