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Nexperia USA Inc. PMEG4005ET,215
- Part No.:
- PMEG4005ET,215
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
PMEG4005ET,215.pdf
- Description:
- DIODE SCHOTTKY 40V 500MA TO236AB
- Quantity:
- Payment:
- Shipping:
Inventory:124,720
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Product details
Overview
PMEG4005ET,215 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, used in low-voltage DC-to-DC converters and polarity protection circuits.
For engineers reviewing the PMEG4005ET,215 datasheet, PMEG4005ET,215 pinout, PMEG4005ET,215 application, or PMEG4005ET,215 equivalent, key selection criteria include ultra-low VF performance, SOT23 package thermal limitations, non-automotive qualification status, and n.c. terminal handling in PCB layout.
Technical Context
This Schottky diode employs a planar junction structure with an integrated guard ring to enhance ruggedness against electrical overstress and improve reliability under transient conditions. Its low forward voltage stems from optimized metal-semiconductor interface design, enabling high efficiency in low-voltage power paths.
The device operates with a maximum junction temperature of 150 °C and exhibits thermal resistance of 300 K/W when mounted on FR4 PCB with 1 cm² cathode pad. Reverse recovery is inherently negligible due to majority-carrier conduction, eliminating switching losses in high-frequency SMPS designs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Voltage (VR) | 40 V - Maximum blocking capability before breakdown; sets upper limit for input voltage in buck converter catch diodes. |
| Forward Current (IF) | 0.5 A continuous - Sustained conduction rating; defines usable output current in low-power supply rails. |
| Forward Voltage (VF) | 420 mV typ. @ 500 mA - Directly reduces conduction loss; enables >95% efficiency in 3.3 V/5 V DC-DC stages. |
| Reverse Leakage (IR) | 30 µA max. @ 40 V - Low standby power penalty; critical for battery-powered reverse-polarity protection. |
| Diode Capacitance (Cd) | 43 pF typ. @ 1 V - Limits high-frequency noise coupling and EMI in fast-switching nodes. |
| Junction Temperature (Tj) | 150 °C max - Constrains thermal derating in enclosed or high-ambient environments without forced cooling. |
| Thermal Resistance (Rth(j-a)) | 300 K/W - Requires ≥1 cm² copper pour on cathode pad for full 0.5 A rating at 25 °C ambient. |
Pinout & Package
Encapsulated in a standard SOT23 plastic surface-mount package (2.9 mm × 1.3 mm × 1.0 mm body, 1.9 mm pin pitch), the PMEG4005ET,215 features three terminals with Pin 2 internally unconnected.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode (A) | Input side of rectification path; connects to higher-potential node (e.g., switch node in buck topology). |
| 2 | Not Connected (n.c.) | No internal bond wire; must be left floating or tied to ground only if required for mechanical stability-never driven. |
| 3 | Cathode (K) | Output side of rectification path; ties to load or return rail; serves as primary thermal path to PCB copper. |
Key Features
| Feature | Design Value |
|---|---|
| Guard ring integration | Improves surge robustness against repetitive transients without external snubbers in 12 V automotive accessory rails. |
| Ultra-low VF Schottky architecture | Reduces forward conduction loss by ~40% vs. comparable 40 V silicon diodes, directly increasing light-load efficiency. |
| SOT23 footprint compatibility | Enables drop-in replacement in space-constrained designs using industry-standard reflow profiles (J-STD-020 compliant). |
| Non-automotive qualification | Meets industrial-grade reliability standards but excludes AEC-Q101 testing; not approved for safety-critical vehicle systems. |
Applications
| Buck Converter Catch Diode | Inverse Polarity Protection |
|---|---|
Use Scenario: Used as secondary-side freewheeling diode in 5 V/3.3 V synchronous-buck-derived non-synchronous converters. IC Role / Device Role / Timing Role: Provides low-loss current path during high-side FET off-time; no timing function but defines minimum off-time loss budget. Use Value: 420 mV VF minimizes conduction loss at 500 mA, improving light-load efficiency by up to 3.2 percentage points vs. standard Schottkys. |
Use Scenario: Placed in series with VIN rail to block reverse connection in USB-powered IoT sensors and portable medical devices. IC Role / Device Role / Timing Role: Unidirectional current gate; zero latency response to polarity reversal; no control or timing interaction. Use Value: 30 µA IR ensures <1 µW standby dissipation at 5 V reverse bias, extending coin-cell battery life beyond 10 years. |
| Low-Voltage Rectification | High-Efficiency DC-DC Module |
Use Scenario: AC-to-DC rectification in miniature wall adapters delivering ≤500 mA at 3.3 V from 5 V AC-DC flyback secondaries. IC Role / Device Role / Timing Role: Half-wave rectifier; conducts only during positive half-cycle; no active control or synchronization. Use Value: 470 mV max VF ensures ≤235 mW conduction loss at full load, limiting self-heating in sealed enclosures. |
Use Scenario: Integrated into compact 12 V-to-3.3 V isolated DC-DC modules for industrial PLC I/O channels. IC Role / Device Role / Timing Role: Output rectifier in secondary-side synchronous rectification bypass configuration. Use Value: 43 pF capacitance suppresses high-frequency ringing at 500 kHz switching, reducing EMI filter component count by one stage. |
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 (490 mV typ. @ 500 mA); same 40 V VR; SOD-523 package (smaller, higher thermal resistance). | Less suitable for 0.5 A continuous use due to 250 mW Ptot limit; better for <300 mA peak-current apps. | Select when board space is critical and average current ≤300 mA; verify thermal margin with 400 K/W Rth(j-a). |
| SS14 | Higher IF (1 A); higher VF (500 mV typ.); DO-214AC package; automotive-qualified (AEC-Q101). | Valid for automotive infotainment power rails; over-spec'd thermally for SOT23-replacement layouts. | Choose only if AEC-Q101 compliance is mandatory; requires footprint redesign and increases board area by 4×. |
Compared with RB520S-40T1G and SS14, the PMEG4005ET,215 delivers optimal VF/size trade-off for industrial 0.5 A DC-DC outputs, while avoiding unnecessary automotive cost or thermal derating penalties of larger packages.
Availability
PMEG4005ET,215 is available at Aetrix Electronics and suitable for low-voltage rectification, inverse polarity protection, and high-efficiency DC-to-DC conversion requiring stable component supply across industrial, IoT, and consumer electronics programs.
Supply support for PMEG4005ET,215 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-performance logic, analog, and discrete components, with manufacturing rooted in process technology leadership and automotive-grade quality systems.
The PMEG4005ET,215 belongs to Nexperia's low-VF Schottky rectifier product line, engineered specifically for efficiency-critical 3.3 V–12 V power conversion in space- and thermal-constrained industrial and portable applications.
FAQ
Is PMEG4005ET,215 qualified for automotive applications?
No. The PMEG4005ET,215 is explicitly designated as non-automotive qualified per Nexperia's 2022 revision history. It lacks AEC-Q101 stress testing and is intended for industrial, consumer, and computing applications only. Automotive alternatives-such as the PMEG4005AEA-must be selected for vehicle subsystems.
What is the role of the n.c. pin (Pin 2) in PCB layout?
Pin 2 is internally unconnected and must remain electrically floating. It may be left unmasked or grounded solely for mechanical reinforcement-never tied to a signal net or driven. Routing traces to Pin 2 risks solder bridging and violates Nexperia's recommended footprint in Figure 5.
How does thermal performance change without the 1 cm² cathode copper pad?
Without the specified 1 cm² cathode pad, Rth(j-a) degrades from 300 K/W to 440 K/W. At 0.5 A and 25 °C ambient, junction temperature rises from 85 °C to 122 °C-exceeding safe long-term operation. Derating to 350 mA is required for standard FR4 footprints.
Can PMEG4005ET,215 replace a standard silicon diode in a 5 V linear regulator output?
Yes, but only where reverse leakage tolerance exceeds 30 µA. Its 420 mV VF reduces dropout voltage versus a 1N400x (≈900 mV), improving regulation margin. However, its 40 V VR offers no benefit in 5 V systems-select lower-voltage Schottkys (e.g., PMEG2005) for better leakage/capacitance trade-offs.
PMEG4005ET,215 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- 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:
- TO-236AB
- Operating Temperature - Junction:
- 150°C (Max)
PMEG4005ET,215 FAQ
1.How can I place an order for PMEG4005ET,215 through Aetrix?
Please submit a Request for Quotation (RFQ) for PMEG4005ET,215 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 PMEG4005ET,215 reliable?
The price and inventory of PMEG4005ET,215 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PMEG4005ET,215 is usually 5 days.
3.What payment methods are accepted for PMEG4005ET,215?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PMEG4005ET,215 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PMEG4005ET,215?
PMEG4005ET,215 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PMEG4005ET,215 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 PMEG4005ET,215?
For technical support, including PMEG4005ET,215 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PMEG4005ET,215 requirements.
6.How does Aetrix verify that PMEG4005ET,215 is sourced from the original manufacturer or authorized distributors?
All PMEG4005ET,215 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 PMEG4005ET,215 meets industry standards.
7.What is the process for return or replacement of PMEG4005ET,215?
All PMEG4005ET,215 units undergo pre-shipment inspection (PSI). If there is an issue with PMEG4005ET,215, 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 PMEG4005ET,215 part is unused and in its original packaging.
Return procedure for PMEG4005ET,215:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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