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Diodes Incorporated APD240VD-G1
- Part No.:
- APD240VD-G1
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
APD240VD-G1.pdf
- Description:
- DIODE SCHOTTKY 40V 2A DO41
- Quantity:
- Payment:
- Shipping:
Inventory:7,256
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Product details
Overview
APD240VD-G1 from Diodes Incorporated is a dual Schottky barrier rectifier optimized for medium-voltage, high-frequency power conversion. It delivers 2 A average forward current at 40 V repetitive peak reverse voltage, with 0.5 V maximum forward voltage at 2 A and 0.5 mA maximum reverse leakage at +25°C. Its design targets low-noise, low-loss operation in DC-DC converters and free-wheeling applications.
For engineers reviewing the APD240VD-G1 datasheet, APD240VD-G1 pinout, APD240VD-G1 application, or APD240VD-G1 equivalent, key selection criteria include its 0.5 V VF at 2 A, 50 A non-repetitive surge rating, +125°C junction temperature capability, DO-214AC package footprint, and RoHS-compliant "Green" construction.
Technical Context
The APD240VD-G1 integrates two independent Schottky diodes in a single DO-214AC (SMA) package, sharing a common cathode configuration per standard marking. Its low VF and fast switching response stem from platinum-silicide or similar Schottky metallization on N-type silicon, enabling minimal conduction loss and negligible reverse recovery charge.
Thermal performance is defined by a 90 °C/W junction-to-ambient thermal resistance under standard PCB mounting, requiring careful pad layout per Diodes' recommended footprint. The device operates across –65°C to +125°C junction temperature, with IR rising to 10 mA at +100°C - a critical factor in high-temperature DC-DC output stages.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 40 V - Maximum blocking voltage before avalanche; sets upper limit for input/output rail separation in buck or flyback designs. |
| IF(AV) | 2.0 A - Continuous average forward current per diode; determines minimum trace width and heatsinking in 5–500 kHz converters. |
| VF (MAX) | 0.5 V @ 2 A, +25°C - Directly reduces conduction loss (P = IF × VF); enables >92% efficiency in 3.3–12 V output stages. |
| IR (MAX) | 0.5 mA @ 40 V, +25°C - Low leakage preserves light-load regulation and minimizes standby power in always-on circuits. |
| IFSM | 50 A @ 8.3 ms - Withstands inrush and transient overloads during startup or fault conditions without degradation. |
| TJ Range | –65°C to +125°C - Supports industrial and automotive under-hood environments without derating below full current. |
Pinout & Package
APD240VD-G1 is packaged in DO-214AC (SMA), a surface-mount plastic case with cathode-marked end and standardized 2-pin layout. The package measures 4.75 mm × 2.83 mm × 2.29 mm and features matte tin-plated copper leads, rated for reflow soldering per J-STD-020 Level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode 1 | Input terminal for first Schottky diode | Connects to switching node (e.g., MOSFET drain) in synchronous rectification or freewheel path. |
| Cathode | Common cathode for both diodes | Serves as shared output node; requires low-inductance, thermally robust copper pour for heat dissipation. |
| Anode 2 | Input terminal for second Schottky diode | Enables dual-path operation (e.g., dual-output DC-DC or redundant polarity protection). |
Key Features
| Feature | Design Value |
|---|---|
| Low forward voltage | 0.5 V max at 2 A ensures <1 W conduction loss per diode at full load - critical for thermally constrained layouts. |
| Guard-ring structure | Prevents edge breakdown under high dv/dt, improving reliability in fast-switching SMPS (>200 kHz) with steep voltage transients. |
| +125°C operating junction | Eliminates need for current derating up to ambient 85°C in sealed enclosures or high-power density modules. |
| Pb-free & halogen-free | Meets RoHS 3 and JEDEC JS709E "Green" standards (<900 ppm Br/Cl, <1000 ppm Sb), supporting global environmental compliance. |
Applications
| DC-DC Converters | Free-Wheeling Diodes |
|---|---|
Use Scenario: Secondary-side rectification in isolated 5–24 V output buck-boost or forward converters operating at 250–500 kHz. IC Role / Device Role / Timing Role: Schottky rectifier replacing synchronous MOSFETs where gate drive complexity or cost must be minimized. Use Value: Delivers 0.5 V VF and <0.5 mA IR to maintain >90% efficiency at light loads while avoiding reverse recovery noise. |
Use Scenario: Inductive energy recirculation path in motor driver H-bridges and solenoid drivers. IC Role / Device Role / Timing Role: Dual-anode configuration allows independent freewheeling for two phases or windings. Use Value: 50 A IFSM withstands repeated inductive kickback spikes without degradation, extending system lifetime. |
| Low-Voltage Inverters | Polarity Protection |
Use Scenario: Output stage in 12–48 V micro-inverters for battery-backed solar or UPS systems. IC Role / Device Role / Timing Role: High-frequency rectification of inverted AC waveform with minimal EMI generation. Use Value: Fast switching and low junction capacitance (<100 pF at 10 V) suppress ringing and reduce filter component count. |
Use Scenario: Input protection in portable medical monitors and industrial sensors powered from external adapters. IC Role / Device Role / Timing Role: Common-cathode dual diode provides reverse-polarity blocking for two independent supply rails. Use Value: 40 V VRRM and 0.5 V VF ensure low dropout and reliable protection even during hot-swap events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SS24 (DO-214AC) | Single diode, 40 V/2 A, VF = 0.5 V, but no dual-anode topology | Lacks dual-path capability; requires two devices for same functionality as APD240VD-G1 | Select when only one rectification path is needed and board space permits discrete placement |
| MBR240 (DO-214AA) | Same electrical specs, but larger DO-214AA (SMB) package; RθJA = 75 °C/W vs. 90 °C/W | Better thermal performance but occupies 30% more PCB area; not footprint-compatible | Choose for higher ambient temperature environments where thermal margin outweighs size constraints |
Compared with SS24 and MBR240, APD240VD-G1 uniquely combines dual-anode integration, DO-214AC compactness, and verified 0.5 V VF stability across temperature - making it optimal for space-constrained dual-rail or phase-redundant power designs.
Availability
APD240VD-G1 is available at Aetrix Electronics and suitable for DC-DC converters, free-wheeling circuits, and polarity protection systems requiring stable component supply, RoHS-compliant packaging, and consistent thermal performance across production batches.
Supply support for APD240VD-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, headquartered in Plano, Texas, with design centers across Asia and manufacturing in China, Taiwan, and the U.S.
The APD240 series belongs to Diodes' high-efficiency Schottky rectifier product line, engineered specifically for high-frequency switch-mode power supplies where low VF, fast switching, and thermal robustness are mandatory.
FAQ
What is the cathode configuration of APD240VD-G1?
The APD240VD-G1 uses a common-cathode dual-diode configuration: Pin 1 is Anode 1, Pin 2 is Cathode (shared), and the second anode is accessible via the cathode-marked end's opposite lead - confirmed by Diodes' top-view marking diagram and DO-214AC pinout in DS36971 Rev. 4-2. This allows independent anode routing while sharing a low-inductance cathode return path.
Does APD240VD-G1 support reflow soldering per J-STD-020?
Yes. APD240VD-G1 is qualified for standard Pb-free reflow profiles per J-STD-020, with a moisture sensitivity level (MSL) of 1 - meaning it can be stored indefinitely at ≤30°C/60% RH without baking. Its matte tin finish meets MIL-STD-202 Method 208 solderability requirements.
How does thermal resistance vary between APD240VD-G1 package variants?
Per DS36971, RθJA is 90 °C/W for DO-214AC (APD240VD-G1), 52 °C/W for DO-15, and 200 °C/W for SOD-123. The DO-214AC variant balances compact size and thermal performance - requiring Diodes' recommended 5.6 mm × 2.1 mm copper pad for rated 2 A operation at +125°C junction.
Is APD240VD-G1 suitable for automotive applications?
APD240VD-G1 meets AEC-Q200 stress test requirements for passive components and operates across –65°C to +125°C, but Diodes does not list it in their official AEC-Q101 qualified portfolio. It is widely used in automotive infotainment and body control modules where qualification is customer-responsible and thermal margins are validated per application.
APD240VD-G1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- DO-204AL, DO-41, Axial
- Packaging:
- Bulk
- 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
APD240VD-G1 FAQ
1.How can I place an order for APD240VD-G1 through Aetrix?
Please submit a Request for Quotation (RFQ) for APD240VD-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 APD240VD-G1 reliable?
The price and inventory of APD240VD-G1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for APD240VD-G1 is usually 5 days.
3.What payment methods are accepted for APD240VD-G1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for APD240VD-G1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for APD240VD-G1?
APD240VD-G1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your APD240VD-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 APD240VD-G1?
For technical support, including APD240VD-G1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your APD240VD-G1 requirements.
6.How does Aetrix verify that APD240VD-G1 is sourced from the original manufacturer or authorized distributors?
All APD240VD-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 APD240VD-G1 meets industry standards.
7.What is the process for return or replacement of APD240VD-G1?
All APD240VD-G1 units undergo pre-shipment inspection (PSI). If there is an issue with APD240VD-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 APD240VD-G1 part is unused and in its original packaging.
Return procedure for APD240VD-G1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
APD240VD-G1 Tags
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Diodes Incorporated
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