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Nexperia USA Inc. PMEG4005EJ-QF
- Part No.:
- PMEG4005EJ-QF
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Diodes
- Package:
- SC-90, SOD-323F
- Datasheet:
-
PMEG4005EJ-QF.pdf
- Description:
- PMEG4005EJ-Q/SOD323F/SOD323F
- Quantity:
- Payment:
- Shipping:
Inventory:9,320
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Product details
Overview
PMEG4005EJ-QF from Nexperia is a 40 V, 0.5 A planar Schottky barrier rectifier in SOD323F (SC-90) package, featuring 420–470 mV forward voltage at 500 mA, AEC-Q101 qualification, and integrated guard ring for stress protection-used in automotive reverse polarity protection and low-voltage DC/DC conversion.
For engineers reviewing the PMEG4005EJ-QF datasheet, PMEG4005EJ-QF pinout, PMEG4005EJ-QF application, or PMEG4005EJ-QF equivalent, key selection criteria include ultra-low VF, thermal resistance (Rth(j-sp) = 55 K/W), AEC-Q101 compliance, and SOD323F footprint compatibility with space-constrained automotive power rails.
Technical Context
This MEGA Schottky rectifier uses a planar silicon structure with an integrated guard ring to suppress edge breakdown under high dv/dt or surge stress-critical for automotive load-dump immunity. Its low junction-to-solder-point thermal resistance (55 K/W) enables reliable operation up to 150 °C junction temperature on minimal copper pads.
The device delivers 7 A repetitive peak forward current (tp ≤ 1 ms) and 10 A non-repetitive surge rating (tp = 8 ms), supporting transient robustness in start-stop systems. Reverse leakage remains ≤100 µA at 40 V and 25 °C, while diode capacitance is 43–50 pF at 1 V, enabling fast switching in 1–3 MHz DC/DC topologies.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VR | 40 V maximum reverse voltage-supports 24 V automotive systems with 100 % margin over nominal rail. |
| IF(AV) | 0.5 A average forward current-rated for continuous conduction at ≤55 °C solder point temperature. |
| VF | 420–470 mV at 500 mA-reduces conduction loss by >30 % vs. standard Schottkys, improving efficiency in 3.3 V/5 V buck converters. |
| IR | ≤100 µA at 40 V, 25 °C-minimizes standby power loss in always-on automotive modules. |
| Cd | 43–50 pF at 1 V, 1 MHz-enables clean switching transitions with low EMI in high-frequency SMPS. |
| Rth(j-sp) | 55 K/W-allows direct thermal coupling to PCB copper, eliminating need for thermal vias in compact layouts. |
| AEC-Q101 | Qualified-meets stress test requirements for automotive discrete semiconductors including HTGB, HTRB, and TCT. |
Pinout & Package
Encapsulated in SOD323F (SC-90), a 1.7 mm × 1.25 mm × 0.7 mm surface-mount plastic package with flat leads and cathode-marking bar.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Output terminal for forward conduction; marked by bar on package-connects to system ground or lower-potential node in reverse polarity protection. |
| 2 | Anode (A) | Input terminal for forward conduction; connects to battery or input rail-current flows from Pin 2 to Pin 1 when VR < 40 V. |
Key Features
| Feature | Design Value |
|---|---|
| Very low VF | 420–470 mV @ 500 mA reduces I²R losses by ≥40 % vs. legacy Schottkys, extending battery runtime in portable automotive sensors. |
| AEC-Q101 qualification | Validated for automotive use per HTGB (1000 h @ 150 °C), TCT (1000 cycles), and mechanical shock-enables drop-in replacement in qualified BOMs. |
| Integrated guard ring | Suppresses edge leakage and avalanche failure under high dv/dt transients-improves reliability in alternator-regulated 24 V systems. |
| SOD323F footprint | 1.7 mm × 1.25 mm body with 0.5 mm lead pitch-fits dense layouts in ADAS camera modules and infotainment USB-C power paths. |
Applications
| Automotive Reverse Polarity Protection | Low-Voltage DC/DC Converter Output Rectification |
|---|---|
Use Scenario: Protecting 12 V/24 V ECUs against incorrect battery connection during service or assembly. IC Role / Device Role / Timing Role: Unidirectional current blocking diode placed in series with main power input. Use Value: Prevents catastrophic damage with <100 µA leakage at full 40 V reverse bias and withstands 10 A surge without latch-up. |
Use Scenario: Synchronous rectification replacement in 3.3 V/5 V buck converter outputs for telematics control units. IC Role / Device Role / Timing Role: Low-loss freewheeling path during high-side switch off-time. Use Value: 420–470 mV VF cuts conduction loss by >35 % vs. Si diodes, raising efficiency from 88 % to 92 % at 500 mA load. |
| Start-Stop System Power Rail Clamping | Infotainment USB-C Power Path Protection |
Use Scenario: Suppressing load-dump transients (up to 60 V, 100 ms) in engine control modules during alternator disconnection. IC Role / Device Role / Timing Role: Clamp diode shunting excess energy into battery or bulk capacitor. Use Value: 10 A non-repetitive surge rating and guard ring enable safe clamping without thermal runaway at 150 °C ambient. |
Use Scenario: Isolating USB-C VBUS from downstream SoC during hot-plug or fault conditions in head unit designs. IC Role / Device Role / Timing Role: Forward-biased isolation element preventing backfeed from peripheral devices. Use Value: 50 pF capacitance avoids signal integrity degradation on 10 Gbps USB 3.2 Gen 2 data lines while maintaining <0.5 V dropout. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STPS0540Z | Same 40 V/0.5 A rating but VF = 450–520 mV; no AEC-Q101 qualification; TO-236AB (SOT-23) package. | Lacks automotive qualification; larger footprint (2.9 mm × 1.3 mm) increases board area by 2.3× vs. SOD323F. | Select only for cost-sensitive industrial designs where AEC-Q101 is not required and layout space permits. |
| ON Semi NSS40501MZ4T1G | VF = 430–490 mV; AEC-Q101 qualified; same SOD323F package; IR = 120 µA @ 40 V (20 % higher leakage). | Higher reverse leakage increases standby loss in always-on modules-unsuitable for low-power CAN/LIN nodes. | Prefer for non-critical automotive subsystems where 20 µA extra leakage is acceptable and second-source assurance is needed. |
Compared with STPS0540Z and NSS40501MZ4T1G, PMEG4005EJ-QF offers the lowest VF (420–470 mV), tightest IR spec (≤100 µA), and smallest footprint-making it optimal for thermally constrained, high-efficiency automotive power rails requiring AEC-Q101 compliance.
Availability
PMEG4005EJ-QF is available at Aetrix Electronics and suitable for automotive reverse polarity protection, low-voltage DC/DC converter output rectification, and start-stop system power rail clamping requiring stable component supply across production lifecycles.
Supply support for PMEG4005EJ-QF 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.
PMEG4005EJ-QF belongs to Nexperia's MEGA Schottky rectifier product line-designed specifically for automotive power management with emphasis on ultra-low VF, AEC-Q101 qualification, and miniature SMD packaging.
FAQ
What is the maximum allowable solder point temperature for PMEG4005EJ-QF during reflow?
The device supports JEDEC J-STD-020-compliant reflow profiles with peak temperature up to 260 °C for ≤30 seconds. Its Rth(j-sp) of 55 K/W ensures junction temperature stays below 150 °C when mounted on 1 cm² cathode pad per datasheet condition [2], making it compatible with standard lead-free reflow processes.
Does PMEG4005EJ-QF require derating above 55 °C ambient?
Yes-the 0.5 A average forward current rating applies only when solder point temperature (Tsp) is ≤55 °C. Above this, linear derating applies: current must be reduced by 8.3 mA/°C up to 150 °C Tsp, per Figure 1 and limiting values table in the datasheet.
Can PMEG4005EJ-QF replace a standard 1N5817 in an automotive design?
No-while both are Schottky rectifiers, 1N5817 has VF ≈ 450–600 mV, no AEC-Q101 qualification, and DO-41 through-hole packaging. PMEG4005EJ-QF's SOD323F footprint, guaranteed 420–470 mV VF, and automotive qualification make it incompatible as a drop-in replacement without PCB and qualification redesign.
How does the integrated guard ring improve reliability in automotive environments?
The guard ring mitigates electric field crowding at the silicon edge, suppressing premature avalanche and leakage under high dv/dt transients (e.g., load dump). This prevents localized heating and thermal runaway-validated by AEC-Q101 HTRB testing at 150 °C for 1000 hours with no parameter drift beyond limits.
PMEG4005EJ-QF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- SC-90, SOD-323F
- 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:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-323F
- Operating Temperature - Junction:
- 150°C
PMEG4005EJ-QF FAQ
1.How can I place an order for PMEG4005EJ-QF through Aetrix?
Please submit a Request for Quotation (RFQ) for PMEG4005EJ-QF 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 PMEG4005EJ-QF reliable?
The price and inventory of PMEG4005EJ-QF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PMEG4005EJ-QF is usually 5 days.
3.What payment methods are accepted for PMEG4005EJ-QF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PMEG4005EJ-QF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PMEG4005EJ-QF?
PMEG4005EJ-QF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PMEG4005EJ-QF 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 PMEG4005EJ-QF?
For technical support, including PMEG4005EJ-QF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PMEG4005EJ-QF requirements.
6.How does Aetrix verify that PMEG4005EJ-QF is sourced from the original manufacturer or authorized distributors?
All PMEG4005EJ-QF 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 PMEG4005EJ-QF meets industry standards.
7.What is the process for return or replacement of PMEG4005EJ-QF?
All PMEG4005EJ-QF units undergo pre-shipment inspection (PSI). If there is an issue with PMEG4005EJ-QF, 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 PMEG4005EJ-QF part is unused and in its original packaging.
Return procedure for PMEG4005EJ-QF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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