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Nexperia USA Inc. PMEG4005CT-QR
- Part No.:
- PMEG4005CT-QR
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Diode Arrays
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
PMEG4005CT-QR.pdf
- Description:
- DIODE ARR SCHOTTKY 40V TO-236AB
- Quantity:
- Payment:
- Shipping:
Inventory:5,817
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Product details
Overview
PMEG4005CT-QR from Nexperia is a dual common-cathode Schottky barrier rectifier optimized for low forward voltage (VF = 410–470 mV at IF = 500 mA), 40 V reverse voltage rating, and 500 mA average forward current per diode - used in automotive-grade DC-DC converters and reverse polarity protection circuits.
For engineers reviewing the PMEG4005CT-QR datasheet, PMEG4005CT-QR pinout, PMEG4005CT-QR application, or PMEG4005CT-QR equivalent, key selection criteria include VF consistency across temperature, AEC-Q101 qualification, SOT23 thermal performance on FR4 PCBs, and dual-diode layout for space-constrained power rails.
Technical Context
This device integrates two planar Schottky diodes in a single SOT23 package with shared cathode (Pin 3), enabling independent anode control (Pins 1 & 2) while minimizing conduction loss. Its guard ring structure enhances ESD and surge robustness without compromising switching speed.
Designed for high-frequency operation, it delivers trr < 13 ns and Cd = 43–50 pF at VR = 1 V, supporting efficient operation in SMPS topologies up to several MHz. Thermal resistance Rth(j-a) ranges from 270 K/W (ceramic PCB) to 375 K/W (standard FR4), directly impacting derating in ambient temperatures up to 150 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VF @ 500 mA | 410–470 mV - enables ≥3% efficiency gain vs. standard silicon diodes in 3.3 V/5 V rail rectification |
| VR | 40 V - supports 24 V automotive systems with 2× safety margin against load dump transients |
| IF(AV) per diode | 0.5 A - rated for continuous square-wave operation (δ = 0.5, f = 20 kHz) up to Tsp ≤ 130 °C |
| IR @ 40 V | 27–100 µA - ensures minimal leakage in battery-backed or always-on circuits |
| trr | <13 ns - eliminates switching losses in >500 kHz buck/boost converters |
| Cd @ 1 V | 43–50 pF - reduces capacitive coupling noise in sensitive analog or RF supply domains |
| AEC-Q101 Qualified | Yes - validated for automotive underhood applications per stress test requirements |
Pinout & Package
Encapsulated in SOT23 (TO-236AB) - 2.9 mm × 1.3 mm × 1.0 mm body, 1.9 mm lead pitch, surface-mount plastic package with tin-plated terminations.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode (Diode 1) | Input node for first rectifier path; connects to source-side of buck converter or positive input in polarity protection |
| 2 | Anode (Diode 2) | Independent input node for second rectifier path; enables dual-rail or redundancy configuration |
| 3 | Common Cathode (K1/K2) | Shared output node; must be routed with low-inductance copper pour to minimize voltage overshoot during fast turn-off |
Key Features
| Feature | Design Value |
|---|---|
| Low VF Schottky architecture | Reduces conduction loss by ~60% vs. comparable 40 V silicon diodes at 500 mA, lowering thermal load on compact PCBs |
| Integrated guard ring | Improves ruggedness against ESD (≥8 kV HBM) and repetitive surge events without external TVS components |
| Common-cathode dual-diode topology | Enables compact dual-path designs - e.g., OR-ing for redundant supplies or split-rail clamping - in same footprint as single diode |
| SOT23 thermal design | Supports 460 mW total power dissipation on FR4 with 1 cm² cathode pad, enabling 0.5 A operation at Tamb ≤ 85 °C |
Applications
| Automotive Body Control Module (BCM) | USB-C Power Delivery Adapter |
|---|---|
Use Scenario: Reverse polarity protection on 12 V battery input to microcontroller power domain. IC Role / Device Role / Timing Role: Dual Schottky acts as back-to-back OR-ing diode pair to block reverse current while passing forward current with minimal drop. Use Value: Prevents damage during jump-start misconnection; 410 mV VF limits voltage loss to <1.5% at 500 mA, preserving brown-out margin. | Use Scenario: Output rectification in synchronous flyback secondary stage delivering 5–20 V at up to 3 A. IC Role / Device Role / Timing Role: One diode handles main output; second provides auxiliary bias winding rectification or auxiliary rail clamping. Use Value: Dual integration eliminates two discrete SOT23 placements; <13 ns trr avoids shoot-through in 600 kHz+ designs. |
| Industrial IoT Sensor Node | Automotive ADAS Camera Power Supply |
Use Scenario: Low-power DC-DC conversion from coin cell or energy harvester to 1.8 V/3.3 V logic rails. IC Role / Device Role / Timing Role: Rectifies AC from piezoelectric or RF harvester; common cathode simplifies filtering capacitor placement. Use Value: 27 µA max IR at 40 V prevents >1% self-discharge in multi-year batteryless deployments. | Use Scenario: Input protection and rail clamping in 5 V camera module power path exposed to ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Diode 1 clamps transient spikes; Diode 2 provides backup path during cold-crank voltage sag. Use Value: AEC-Q101 qualification ensures reliability under −40 °C to +125 °C junction conditions; guard ring withstands 100 V/µs dv/dt surges. |
Availability
PMEG4005CT-QR is available at Aetrix Electronics and suitable for automotive body electronics, USB-C PD adapters, industrial sensor nodes, and ADAS camera power supplies requiring stable component supply and AEC-Q101 compliance.
Supply support for PMEG4005CT-QR 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 discrete devices, logic ICs, and MOSFETs - with leadership in automotive and industrial markets.
This part belongs to Nexperia's AEC-Q101-qualified Schottky rectifier product line, engineered specifically for low-loss, high-speed power conversion in space- and thermally-constrained automotive and portable electronics.
FAQ
Is PMEG4005CT-QR pin-compatible with PMEG4005CT?
Yes - PMEG4005CT-QR shares identical SOT23 pinout (Anode1–Anode2–Common Cathode), mechanical dimensions, and electrical specifications with PMEG4005CT. The "-QR" suffix denotes tape-and-reel packaging per AEC-Q101 automotive logistics requirements, not functional differentiation.
What is the maximum allowable solder point temperature during reflow?
The datasheet specifies absolute maximum solder point temperature (Tsp) of 130 °C for continuous operation at 0.5 A average current. Peak reflow profile must stay within JEDEC J-STD-020 Class 3A limits (260 °C for ≤40 s), with no sustained exposure above 230 °C to avoid delamination or bond wire degradation.
Can PMEG4005CT-QR replace a single 1N5819 in a 5 V supply?
Yes - one diode section meets or exceeds 1N5819's 1 A IF(AV) rating at lower VF (470 mV vs. ~550 mV), but its 0.5 A rating per diode requires verifying that peak/average current stays within limit. The dual configuration allows using only one anode if needed, leaving second unused or grounded for EMI suppression.
How does thermal performance differ between FR4 and ceramic PCB mounting?
On standard FR4, Rth(j-a) is 375 K/W; with 1 cm² cathode pad, it improves to 310 K/W. On Al₂O₃ ceramic, it reaches 270 K/W - enabling ~25% higher current capability at same ambient temperature. This difference directly impacts derating curves in Figures 9–11 of the datasheet.
PMEG4005CT-QR 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
- Diode Configuration:
- 1 Pair Common Cathode
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 40 V
- Current - Average Rectified (Io) (per Diode):
- 500mA
- Voltage - Forward (Vf) (Max) @ If:
- 470 mV @ 500 mA
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 13 ns
- Current - Reverse Leakage @ Vr:
- 100 µA @ 40 V
- Operating Temperature - Junction:
- 150°C
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-236AB
PMEG4005CT-QR FAQ
1.How can I place an order for PMEG4005CT-QR through Aetrix?
Please submit a Request for Quotation (RFQ) for PMEG4005CT-QR 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 PMEG4005CT-QR reliable?
The price and inventory of PMEG4005CT-QR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PMEG4005CT-QR is usually 5 days.
3.What payment methods are accepted for PMEG4005CT-QR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PMEG4005CT-QR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PMEG4005CT-QR?
PMEG4005CT-QR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PMEG4005CT-QR 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 PMEG4005CT-QR?
For technical support, including PMEG4005CT-QR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PMEG4005CT-QR requirements.
6.How does Aetrix verify that PMEG4005CT-QR is sourced from the original manufacturer or authorized distributors?
All PMEG4005CT-QR 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 PMEG4005CT-QR meets industry standards.
7.What is the process for return or replacement of PMEG4005CT-QR?
All PMEG4005CT-QR units undergo pre-shipment inspection (PSI). If there is an issue with PMEG4005CT-QR, 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 PMEG4005CT-QR part is unused and in its original packaging.
Return procedure for PMEG4005CT-QR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PMEG4005CT-QR Tags
-
BAV99-7-F
Diodes Incorporated
-
BAT54C-7-F
Diodes Incorporated
-
BAV99,215
Nexperia USA Inc.
-
BAT54SLT1G
onsemi
-
BAV70LT1G
onsemi
-
BAT54CLT1G
onsemi
-
BAT54S-7-F
Diodes Incorporated
-
BAV99LT1G
onsemi
-
BAT54S,215
Nexperia USA Inc.
-
BAS40-04LT1G
onsemi
-
MMBD1503-TP
Micro Commercial Co
-
BAV99WT1G
onsemi
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