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Diodes Incorporated APD240VDTR-G1
- Part No.:
- APD240VDTR-G1
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
APD240VDTR-G1.pdf
- Description:
- DIODE SCHOTTKY 40V 2A DO41
- Quantity:
- Payment:
- Shipping:
Inventory:3,984
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Product details
Overview
APD240VDTR-G1 from Diodes Incorporated is a dual Schottky barrier rectifier optimized for high-frequency DC-DC converters and low-voltage inverters, featuring 40 V reverse voltage rating, 2 A average forward current, 0.5 V max forward voltage at 2 A, 0.5 mA max reverse leakage at 25°C, and operation up to +125°C junction temperature.
For engineers reviewing the APD240VDTR-G1 datasheet, APD240VDTR-G1 pinout, APD240VDTR-G1 application, or APD240VDTR-G1 equivalent, key selection criteria include low VF for efficiency in compact power supplies, surge robustness (50 A IFSM), thermal resistance in DO-214AC package, and RoHS-compliant "Green" construction with halogen/antimony-free molding compound.
Technical Context
The APD240VDTR-G1 integrates two independent Schottky diodes in a single DO-214AC (SMA) surface-mount package, enabling dual-path rectification or freewheeling in synchronous buck topologies. Its guard-ring structure enhances ruggedness against transient stress, while the low junction capacitance (≈100 pF at 10 V) supports clean switching in >100 kHz power stages.
Designed for medium-voltage, high-frequency operation, it delivers stable performance across -65°C to +125°C junction range with thermal resistance of 90°C/W (RθJA, mounted per recommended pad layout). The device avoids minority-carrier storage delay, eliminating reverse recovery loss - critical for noise-sensitive SMPS and battery-powered DC-DC modules.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 40 V - Maximum repetitive reverse blocking capability without breakdown; suitable for 24 V input rails with margin. |
| IF(AV) | 2.0 A - Continuous average forward current per diode; supports 5–10 W converter outputs with standard PCB copper. |
| VF (max) | 0.5 V @ 2 A, 25°C - Low conduction loss reduces heat generation and improves efficiency in high-duty-cycle applications. |
| IR (max) | 0.5 mA @ 40 V, 25°C - Minimal leakage preserves standby power in always-on systems and prevents unintended discharge paths. |
| IFSM | 50 A @ 8.3 ms half-sine - Withstands inrush and transient surges common during cold-start or load-step events. |
| TJ Range | -65°C to +125°C - Enables deployment in industrial ambient environments and under thermally constrained board layouts. |
| RθJA | 90°C/W - Measured in DO-214AC package with minimum recommended pad layout; informs heatsinking requirements for sustained 2 A operation. |
Pinout & Package
APD240VDTR-G1 is supplied in DO-214AC (SMA) package: molded plastic case, matte tin-plated copper leadframe, RoHS-compliant and halogen/antimony-free ("Green"). Cathode identified by band marking on top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode 1 (A1) | Input terminal for first Schottky diode | Accepts positive input in forward-biased configuration; connects to switch node in buck freewheeling path. |
| Cathode (K) | Common cathode connection | Shared output node for both diodes; ties to output rail or ground return in dual-diode configurations. |
| Anode 2 (A2) | Input terminal for second Schottky diode | Enables independent control or redundancy; used in dual-output or isolated auxiliary supply paths. |
Key Features
| Feature | Design Value |
|---|---|
| Low forward voltage | 0.5 V max at 2 A ensures <1 W conduction loss per diode, reducing thermal load in space-constrained designs. |
| Guard-ring protected junction | Enhances ESD and dv/dt ruggedness, preventing premature failure during fast-switching transients in MOSFET-driven circuits. |
| +125°C operating junction | Supports reliable operation in sealed enclosures or near hot components without derating below 2 A at full temperature range. |
| DO-214AC surface-mount package | Standardized footprint compatible with automated assembly; 90°C/W RθJA enables thermal management via 2-layer PCB copper pours. |
| Pb-free & "Green" construction | Meets RoHS 3 (2015/863/EU), halogen-free (<900 ppm Br/Cl), and antimony-free (<1000 ppm) requirements for global environmental compliance. |
Applications
| DC-DC Buck Converter | Low-Voltage Inverter |
|---|---|
Use Scenario: Step-down conversion from 24 V to 5 V/3.3 V in industrial PLC I/O modules. IC Role / Device Role / Timing Role: Freewheeling diode in non-synchronous buck regulator, conducting during low-side switch off-time. Use Value: 0.5 V VF minimizes power loss and thermal rise; 50 A IFSM handles startup surges without derating. |
Use Scenario: H-bridge output stage in 12 V battery-powered motor drive inverters. IC Role / Device Role / Timing Role: Dual-path anti-parallel clamping diode, providing bidirectional flyback current paths. Use Value: Common-cathode dual configuration simplifies layout and reduces component count versus discrete diodes. |
| USB-C Power Delivery | Polarity Protection Circuit |
Use Scenario: Input rectification and OR-ing in multi-source USB PD adapter front-end. IC Role / Device Role / Timing Role: Low-loss input diode enabling seamless source handover between AC adapter and power bank. Use Value: 0.5 mA IR at 25°C prevents backfeed leakage that could disrupt source negotiation logic. |
Use Scenario: Reverse-voltage protection for 5 V/12 V embedded sensors and microcontroller peripherals. IC Role / Device Role / Timing Role: Series-connected Schottky diode blocking reverse polarity while minimizing voltage drop. Use Value: 0.5 V VF preserves >4.5 V at load under 2 A, avoiding brownout in sensitive analog or RF subsystems. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MBR240T3G | Single-diode DO-214AC, same 40 V/2 A rating but no dual configuration; VF = 0.52 V @ 2 A. | Lacks integrated dual-anode topology; requires two devices for identical functionality. | Select when only one diode path is needed or board space allows discrete placement. |
| SS24-E3/57T | Single-diode SMA package, 40 V/2 A, VF = 0.5 V @ 2 A, but no guard ring and higher IR (1.0 mA). | Lower surge robustness (30 A IFSM) and reduced thermal stability above 100°C. | Prefer for cost-sensitive consumer applications where transient stress is minimal. |
Compared with MBR240T3G and SS24-E3/57T, APD240VDTR-G1 uniquely provides dual-anode integration in one DO-214AC footprint, enabling compact dual-path designs while maintaining superior surge immunity and low-leakage performance across extended temperature ranges.
Availability
APD240VDTR-G1 is available at Aetrix Electronics and suitable for DC-DC converters, low-voltage inverters, and polarity protection circuits requiring stable component supply, consistent RoHS/Green compliance, and long-term manufacturability assurance.
Supply support for APD240VDTR-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 for industrial, computing, and consumer markets.
The APD240 belongs to Diodes' Schottky rectifier product line, engineered specifically for high-frequency, low-loss power conversion in space- and thermally-constrained applications such as point-of-load regulators and portable power systems.
FAQ
What is the maximum junction temperature and how does it affect thermal design?
The APD240VDTR-G1 has a rated operating junction temperature range of -65°C to +125°C. Its 90°C/W thermal resistance (RθJA) assumes mounting on a PCB with Diodes' recommended DO-214AC pad layout. To sustain 2 A continuous current at +125°C ambient, designers must ensure total power dissipation (VF × IF) remains within the derated thermal envelope - typically requiring ≥1 cm² of 2-oz copper pour per anode.
Is APD240VDTR-G1 truly dual-diode, and how are the terminals arranged?
Yes - APD240VDTR-G1 contains two independent Schottky diodes sharing a common cathode. Pinout is Anode 1 / Cathode / Anode 2 in linear order across the DO-214AC body, with cathode identified by a band marking. This configuration supports freewheeling in dual-phase converters or independent clamping in H-bridge outputs without external wiring.
How does the guard-ring feature improve reliability in real-world use?
The guard-ring structure surrounds the active junction to suppress edge breakdown under high dv/dt or electrostatic stress. In practice, this prevents premature failure during MOSFET switching transients (e.g., >50 V/ns edges) and enhances robustness against ESD events up to ±8 kV HBM - critical for unshielded industrial power modules and automotive body-control units.
Can APD240VDTR-G1 replace older DO-15 versions like APD240VG-E1 in new designs?
Yes, with layout adaptation: APD240VDTR-G1 (DO-214AC) offers identical electrical specs but superior thermal performance (90°C/W vs. 52°C/W for DO-15) and surface-mount compatibility. The smaller footprint and tape-and-reel packaging support automated assembly, though pad layout must follow Diodes' DO-214AC recommendations - not DO-15 land patterns.
APD240VDTR-G1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- DO-204AL, DO-41, Axial
- Packaging:
- Tape & Box (TB)
- Product Status:
- Obsolete
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 40 V
- Current - Average Rectified (Io):
- 2A
- Voltage - Forward (Vf) (Max) @ If:
- 500 mV @ 2 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-41
- Operating Temperature - Junction:
- -65°C ~ 125°C
APD240VDTR-G1 FAQ
1.How can I place an order for APD240VDTR-G1 through Aetrix?
Please submit a Request for Quotation (RFQ) for APD240VDTR-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 APD240VDTR-G1 reliable?
The price and inventory of APD240VDTR-G1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for APD240VDTR-G1 is usually 5 days.
3.What payment methods are accepted for APD240VDTR-G1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for APD240VDTR-G1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for APD240VDTR-G1?
APD240VDTR-G1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your APD240VDTR-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 APD240VDTR-G1?
For technical support, including APD240VDTR-G1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your APD240VDTR-G1 requirements.
6.How does Aetrix verify that APD240VDTR-G1 is sourced from the original manufacturer or authorized distributors?
All APD240VDTR-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 APD240VDTR-G1 meets industry standards.
7.What is the process for return or replacement of APD240VDTR-G1?
All APD240VDTR-G1 units undergo pre-shipment inspection (PSI). If there is an issue with APD240VDTR-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 APD240VDTR-G1 part is unused and in its original packaging.
Return procedure for APD240VDTR-G1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
APD240VDTR-G1 Tags
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Diodes Incorporated
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