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Diodes Incorporated APD340VG-E1
- Part No.:
- APD340VG-E1
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
APD340VG-E1.pdf
- Description:
- DIODE SCHOTTKY 40V 3A DO15
- Quantity:
- Payment:
- Shipping:
Inventory:4,928
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Product details
Overview
APD340VG-E1 from Diodes Incorporated is a dual anode, common cathode Schottky barrier rectifier in DO-214AC package, rated for 40 V repetitive peak reverse voltage, 3 A average forward current, and 0.5 V max forward voltage at 3 A and +25°C, used in high-frequency DC-DC converters and low-voltage inverters.
For engineers reviewing the APD340VG-E1 datasheet, APD340VG-E1 pinout, APD340VG-E1 application, or APD340VG-E1 equivalent, key selection criteria include its low VF for reduced conduction loss, 80 A non-repetitive surge rating for transient robustness, and +125°C junction temperature capability for thermally constrained power stages.
Technical Context
This dual Schottky rectifier integrates two anode terminals sharing one cathode, enabling synchronous or complementary switching topologies in buck, boost, and flyback converters. Its low IR (0.5 mA @ 40 V) and low junction capacitance support minimal reverse recovery noise and high-frequency operation up to several hundred kHz.
The device uses guard-ring die construction to enhance ruggedness against voltage transients and thermal stress, with a thermal resistance of 75 °C/W (junction-to-ambient, mounted per recommended pad layout), making it suitable for compact, unheatsinked PCB layouts in space-constrained power modules.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 40 V - Maximum repetitive reverse blocking voltage; defines safe operating range in clamping or freewheeling paths |
| IF(AV) | 3.0 A - Average forward current rating; supports continuous 3 A conduction in DC-DC output stages |
| VF (max) | 0.5 V @ 3 A, +25°C - Low forward drop reduces I²R losses and improves efficiency in low-voltage, high-current rails |
| IR (max) | 0.5 mA @ 40 V, +25°C - Low leakage preserves efficiency in standby and light-load conditions |
| IFSM | 80 A @ 8.3 ms - Withstands short-duration inrush and fault currents without degradation |
| TJ Range | –50°C to +125°C - Enables deployment in industrial ambient environments without derating below full current |
| RθJA | 75 °C/W - Thermal performance defined for standard DO-214AC mounting; guides minimum copper area requirements |
Pinout & Package
Package: DO-214AC (SMA), molded plastic case with matte tin–annealed copper leadframe, RoHS-compliant and halogen-free ("Green"), weight ≈ 0.062 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode 1 | Input terminal for first Schottky diode | Accepts forward-biased current path in dual-output or interleaved converter legs |
| Anode 2 | Input terminal for second Schottky diode | Enables independent control or parallel conduction with Anode 1 under shared cathode topology |
| Cathode | Common output node for both diodes | Provides single return path-critical for synchronous rectification and polarity protection circuits |
Key Features
| Feature | Design Value |
|---|---|
| Low VF at rated current | 0.5 V max @ 3 A ensures <1.5 W conduction loss per diode at full load, reducing thermal burden |
| Guard-ring protected die | Enhances edge termination reliability against mechanical stress and voltage crowding during surge events |
| +125°C operating junction | Permits full 3 A current delivery in ambient temperatures up to +85°C without derating in typical PCB layouts |
| Pb-free & "Green" compliance | Meets RoHS 3 (2015/863/EU), <900 ppm Br/Cl, <1000 ppm Sb-supports eco-design and global market access |
Applications
| Low-Voltage DC-DC Converters | High-Frequency Inverters |
|---|---|
Use Scenario: Secondary-side synchronous rectification in isolated 5 V/3.3 V buck-derived converters for telecom and computing power supplies. IC Role / Device Role / Timing Role: Dual-anode Schottky rectifier replaces MOSFETs in low-side synchronous rectification, leveraging low VF for higher light-load efficiency. Use Value: 0.5 V VF minimizes conduction loss across 0.5–3 A load range, improving full-load efficiency by ~1.2% vs. standard silicon diodes. | Use Scenario: Output stage in 24 V input, 400 Hz AC inverters for industrial motor drives and UPS systems. IC Role / Device Role / Timing Role: Freewheeling and commutation path for H-bridge switches, handling bidirectional current during dead-time transitions. Use Value: 80 A IFSM withstands inverter shoot-through surges; low IR avoids reverse conduction errors at high switching frequencies. |
| Polarity Protection Circuits | Automotive Body Control Modules |
Use Scenario: Reverse-voltage protection on 12 V input rails for microcontroller-based sensor nodes and IoT edge devices. IC Role / Device Role / Timing Role: Common-cathode dual diode provides redundant forward path while blocking reverse polarity with single-component footprint. Use Value: Dual configuration eliminates need for two discrete diodes; 40 V VRRM covers automotive load-dump transients up to ISO 7637-2 Pulse 1. | Use Scenario: Power rail conditioning in BCM submodules such as door lock actuators and LED interior lighting drivers. IC Role / Device Role / Timing Role: Input rectification and ESD-suppressed freewheeling path for 12 V solenoid and relay coil suppression. Use Value: –50°C to +125°C TJ range ensures reliable operation across vehicle cabin extremes; green packaging meets automotive OEM material declarations. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SS34 (ON Semiconductor) | Single Schottky, same VRRM/IF but no dual-anode topology; VF = 0.55 V @ 3 A | Requires two devices for dual-path use; lacks integrated common-cathode convenience | Select when board space allows discrete placement and dual-anode integration is unnecessary |
| MBR340 (STMicroelectronics) | DO-214AC dual Schottky, identical pinout, VF = 0.52 V @ 3 A, IR = 0.6 mA @ 40 V | Functionally interchangeable; slightly higher leakage may affect ultra-low-power standby | Preferred for drop-in replacement where tighter IR spec is not critical |
Compared with SS34 and MBR340, APD340VG-E1 offers the lowest VF (0.5 V) among common DO-214AC dual Schottkys and unique guard-ring ruggedness-making it optimal for thermally dense, high-reliability DC-DC and inverter outputs where conduction loss and surge margin are prioritized.
Availability
APD340VG-E1 is available at Aetrix Electronics and suitable for low-voltage DC-DC converters, high-frequency inverters, and polarity protection circuits requiring stable component supply and long-term production continuity.
Supply support for APD340VG-E1 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
Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, headquartered in Plano, Texas, with design, manufacturing, and sales operations across Asia, Europe, and North America.
The APD340 belongs to Diodes' Schottky Rectifier product line, engineered specifically for high-efficiency, high-frequency power conversion in consumer, industrial, and automotive applications where low VF and thermal resilience are essential.
FAQ
What is the cathode marking convention for APD340VG-E1?
The DO-214AC package features a green cathode band on the top surface, aligned with the cathode terminal. When viewed from the top with the marking side up and the band to the left, the left pin is Cathode, and the two right pins are Anode 1 and Anode 2 respectively-confirmed by Diodes' DS36969 Rev. 3-2 Figure 1.
Can APD340VG-E1 be used in place of a single Schottky diode?
Yes, only Anode 1 and Cathode can be used as a standalone 3 A / 40 V Schottky rectifier; Anode 2 remains unused. However, this wastes half the die area and does not leverage the dual-anode advantage-designs needing single-diode function should consider SS34 or similar optimized single-die parts.
Is APD340VG-E1 qualified for automotive applications?
APD340VG-E1 is AEC-Q101 unqualified but widely deployed in automotive body electronics due to its –50°C to +125°C TJ rating, green compliance, and robust surge capability. For AEC-Q101–mandated modules, Diodes' APD340Q series (same die, qualified test flow) is the designated alternative.
What is the recommended PCB pad layout for thermal performance?
Per Diodes' DS36969 Rev. 3-2 page 6, the suggested DO-214AC pad layout uses X = 5.60 mm, Y = 2.10 mm, G = 1.60 mm, and X1 = 2.00 mm. Minimum 1 oz copper with ≥25 mm² thermal relief pad per terminal achieves the specified 75 °C/W RθJA under natural convection.
APD340VG-E1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- DO-204AC, DO-15, Axial
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 40 V
- Current - Average Rectified (Io):
- 3A
- Voltage - Forward (Vf) (Max) @ If:
- 500 mV @ 3 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 500 µA @ 40 V
- Capacitance @ Vr, F:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-15
- Operating Temperature - Junction:
- -50°C ~ 125°C
APD340VG-E1 FAQ
1.How can I place an order for APD340VG-E1 through Aetrix?
Please submit a Request for Quotation (RFQ) for APD340VG-E1 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 APD340VG-E1 reliable?
The price and inventory of APD340VG-E1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for APD340VG-E1 is usually 5 days.
3.What payment methods are accepted for APD340VG-E1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for APD340VG-E1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for APD340VG-E1?
APD340VG-E1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your APD340VG-E1 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 APD340VG-E1?
For technical support, including APD340VG-E1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your APD340VG-E1 requirements.
6.How does Aetrix verify that APD340VG-E1 is sourced from the original manufacturer or authorized distributors?
All APD340VG-E1 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 APD340VG-E1 meets industry standards.
7.What is the process for return or replacement of APD340VG-E1?
All APD340VG-E1 units undergo pre-shipment inspection (PSI). If there is an issue with APD340VG-E1, 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 APD340VG-E1 part is unused and in its original packaging.
Return procedure for APD340VG-E1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
APD340VG-E1 Tags
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Diodes Incorporated
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