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Diodes Incorporated APD340VRTR-G1
- Part No.:
- APD340VRTR-G1
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
APD340VRTR-G1.pdf
- Description:
- DIODE SCHOTTKY 40V 3A DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:7,480
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Product details
Overview
APD340VRTR-G1 from Diodes Incorporated is a dual common-cathode Schottky barrier rectifier rated for 40 V repetitive peak reverse voltage, 3 A average forward current, and 0.5 V maximum forward voltage at 3 A and +25°C. It operates from –50°C to +125°C junction temperature and is packaged in DO-214AC for use in high-frequency DC-DC converters and low-voltage inverters.
For engineers reviewing the APD340VRTR-G1 datasheet, APD340VRTR-G1 pinout, APD340VRTR-G1 application, or APD340VRTR-G1 equivalent, key selection criteria include its low VF (0.5 V @ 3 A), 80 A non-repetitive surge rating, guard-ring stress protection, RoHS-compliant "Green" packaging, and thermal resistance of 75 °C/W with recommended pad layout.
Technical Context
The APD340VRTR-G1 integrates two Schottky diodes sharing a common cathode terminal in a single DO-214AC surface-mount package. Its low forward voltage drop and fast switching response minimize conduction and recovery losses in high-frequency power conversion topologies.
Designed for medium-voltage operation up to 40 V DC blocking, it supports free-wheeling and polarity protection functions without reverse recovery charge. The device's junction capacitance and thermal characteristics are optimized for stable performance under continuous 3 A load and transient 80 A surge conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 40 V - Maximum repetitive reverse voltage before breakdown; defines safe operating limit in flyback or clamp circuits. |
| IF(AV) | 3.0 A - Average forward current capability; determines continuous power handling in DC-DC output stages. |
| VF (max) | 0.5 V @ 3 A, +25°C - Low conduction loss reduces heat generation and improves efficiency in high-current paths. |
| IR (max) | 0.5 mA @ 40 V, +25°C - Low leakage preserves energy in standby and light-load conditions. |
| IFS M | 80 A @ 8.3 ms - Withstands short-duration surges during startup or fault events without failure. |
| RθJA | 75 °C/W - Thermal resistance with standard pad layout; guides heatsinking requirements for sustained 3 A operation. |
| TJ range | –50°C to +125°C - Enables deployment in industrial and automotive ambient environments without derating. |
Pinout & Package
APD340VRTR-G1 is housed in a DO-214AC (SMC) plastic surface-mount package with matte tin–annealed copper leadframe, UL 94V-0 flammability rating, and moisture sensitivity level 1. Weight: ~0.062 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode 1 | Input anode for first Schottky diode | Accepts positive input for independent rectification path; used in dual-output or interleaved converter designs. |
| Anode 2 | Input anode for second Schottky diode | Enables dual-channel rectification from separate sources or phases while sharing cathode return. |
| Cathode | Common cathode node | Single low-impedance output node for both diodes; simplifies PCB routing and reduces parasitic inductance in high-frequency layouts. |
Key Features
| Feature | Design Value |
|---|---|
| Low forward voltage | 0.5 V max @ 3 A ensures <1.5 W conduction loss per diode at full load, reducing thermal design burden. |
| Guard-ring structure | Enhances ruggedness against voltage transients and mechanical stress, improving long-term reliability in industrial power supplies. |
| +125°C junction rating | Supports operation in enclosed or high-ambient environments without forced cooling or significant current derating. |
| RoHS/Green compliance | Pb-free, halogen- and antimony-free molding compound meets EU RoHS 3 and JEDEC J-STD-020 Level 1 standards. |
Applications
| Low Voltage High Frequency Inverters | DC-DC Converters |
|---|---|
Use Scenario: Inverter stage of portable solar microinverters operating at 20–100 kHz switching frequency. IC Role / Device Role / Timing Role: Dual Schottky rectifier providing synchronous freewheeling and output rectification with shared cathode return. Use Value: 0.5 V VF minimizes conduction loss at 3 A output, enabling >94% efficiency at light-to-moderate loads. | Use Scenario: Secondary-side rectification in isolated 12 V → 5 V/3.3 V buck-derived DC-DC modules for networking equipment. IC Role / Device Role / Timing Role: Common-cathode dual rectifier delivering two regulated outputs from a center-tapped transformer winding. Use Value: Shared cathode reduces PCB trace inductance and EMI, critical for meeting CISPR-32 Class B emissions limits. |
| Free Wheeling | Polarity Protection |
Use Scenario: Freewheeling path across inductive loads (e.g., solenoids, relay coils) in 24 V industrial control modules. IC Role / Device Role / Timing Role: Fast-recovery Schottky clamp preventing voltage spikes during switch-off transitions. Use Value: Zero reverse recovery charge eliminates switching noise and enables clean turn-off in 100 kHz PWM-driven systems. | Use Scenario: Reverse-polarity input protection for 5 V/12 V USB-C PD adapters and battery-powered instrumentation. IC Role / Device Role / Timing Role: Series-connected Schottky diode blocking reverse current while minimizing forward drop in normal operation. Use Value: 0.5 V VF adds only 4.2% voltage loss at 12 V input, preserving regulation margin and thermal headroom. |
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, 40 V/3 A, VF = 0.55 V @ 3 A, DO-214AC | Lacks dual-anode configuration; requires two devices for common-cathode topology | Select when discrete placement or layout flexibility outweighs component count reduction. |
| MBR340 (STMicroelectronics) | Dual common-cathode, 40 V/3 A, VF = 0.54 V @ 3 A, DO-214AC | Higher VF and slightly lower IFSM (60 A); no guard-ring specification in datasheet | Prefer for cost-sensitive designs where 0.04 V higher VF and reduced surge margin are acceptable. |
Compared with SS34 and MBR340, APD340VRTR-G1 delivers the lowest VF (0.5 V), highest surge rating (80 A), and integrated guard-ring protection-making it optimal for space-constrained, high-reliability DC-DC and inverter designs requiring minimal conduction loss and robust transient immunity.
Availability
APD340VRTR-G1 is available at Aetrix Electronics and suitable for low-voltage high-frequency inverters, DC-DC converters, and polarity protection circuits requiring stable component supply, consistent parametric performance, and RoHS-compliant manufacturing.
Supply support for APD340VRTR-G1 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, specializing in high-efficiency power management, signal integrity, and protection solutions.
The APD340 belongs to Diodes' Schottky rectifier product line, engineered for high-frequency power conversion where low VF, fast switching, and thermal resilience are essential in compact industrial and consumer power supplies.
FAQ
What is the maximum junction temperature and how does it affect thermal design?
The APD340VRTR-G1 has a maximum junction temperature of +125°C. Its RθJA is 75 °C/W with the recommended pad layout; at 3 A average current and 0.5 V VF, power dissipation is ~1.5 W, requiring ≤83°C ambient rise. Proper copper pour and via stitching are essential to maintain TJ within limit under full load.
Is APD340VRTR-G1 suitable for synchronous rectification?
No-APD340VRTR-G1 is a passive Schottky rectifier, not a synchronous MOSFET controller or driver. It functions as a self-commutated diode and cannot be actively gated. For synchronous rectification, a dedicated gate driver and MOSFET pair must be used instead.
How does the guard-ring structure improve reliability?
The guard-ring in APD340VRTR-G1 mitigates edge electric field crowding at the PN junction periphery, reducing susceptibility to avalanche-induced degradation and surface contamination failures. This enhances long-term stability in high-humidity or vibration-prone industrial environments.
What does the "G1" suffix indicate in the part number?
The "G1" suffix denotes RoHS-compliant, halogen- and antimony-free "Green" packaging per Diodes Incorporated's specification. It confirms compliance with EU RoHS 3 (2015/863/EU), including <900 ppm Br, <900 ppm Cl, and <1000 ppm Sb, and is paired with tape-and-reel (TR) packaging.
APD340VRTR-G1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- DO-214AC, SMA
- Packaging:
- Tape & Reel (TR)
- 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:
- Surface Mount
- Supplier Device Package:
- DO-214AC
- Operating Temperature - Junction:
- -50°C ~ 125°C
APD340VRTR-G1 FAQ
1.How can I place an order for APD340VRTR-G1 through Aetrix?
Please submit a Request for Quotation (RFQ) for APD340VRTR-G1 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 APD340VRTR-G1 reliable?
The price and inventory of APD340VRTR-G1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for APD340VRTR-G1 is usually 5 days.
3.What payment methods are accepted for APD340VRTR-G1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for APD340VRTR-G1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for APD340VRTR-G1?
APD340VRTR-G1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your APD340VRTR-G1 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 APD340VRTR-G1?
For technical support, including APD340VRTR-G1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your APD340VRTR-G1 requirements.
6.How does Aetrix verify that APD340VRTR-G1 is sourced from the original manufacturer or authorized distributors?
All APD340VRTR-G1 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 APD340VRTR-G1 meets industry standards.
7.What is the process for return or replacement of APD340VRTR-G1?
All APD340VRTR-G1 units undergo pre-shipment inspection (PSI). If there is an issue with APD340VRTR-G1, 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 APD340VRTR-G1 part is unused and in its original packaging.
Return procedure for APD340VRTR-G1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
APD340VRTR-G1 Tags
-
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Diodes Incorporated
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