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Diodes Incorporated APD240VDTR-E1
- Part No.:
- APD240VDTR-E1
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
APD240VDTR-E1.pdf
- Description:
- DIODE SCHOTTKY 40V 2A DO41
- Quantity:
- Payment:
- Shipping:
Inventory:8,616
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Product details
Overview
APD240VDTR-E1 from Diodes Incorporated is a dual Schottky barrier rectifier optimized for high-frequency DC-DC converters and low-voltage switch-mode power supplies. It delivers 2 A average forward current, 40 V peak reverse voltage, 0.5 V max forward voltage at 2 A, 0.5 mA max reverse leakage at 25°C, and operates up to +125°C junction temperature - enabling compact, efficient power conversion in space-constrained industrial and embedded systems.
For engineers reviewing the APD240VDTR-E1 datasheet, APD240VDTR-E1 pinout, APD240VDTR-E1 application, or APD240VDTR-E1 equivalent, key selection criteria include its low VF for reduced conduction loss, high surge current rating (50 A), DO-214AC package thermal resistance (90 °C/W), and RoHS-compliant "Green" construction with halogen/antimony-free molding compound.
Technical Context
The APD240VDTR-E1 integrates two independent Schottky diodes in a single DO-214AC (SMA) surface-mount package, sharing a common cathode configuration per standard marking. Its guard-ring structure enhances ruggedness against transient stress and improves reliability under repetitive surge conditions.
Designed for medium-voltage, high-frequency operation, it exhibits low junction capacitance (~100 pF at 10 V) and fast switching with minimal reverse recovery charge - critical for minimizing EMI and switching losses in synchronous buck converters and flyback topologies operating above 100 kHz.
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 DC-DC stages with proper PCB copper area. |
| VF (max) | 0.5 V @ 2 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 standby power integrity in always-on subsystems. |
| IFS M | 50 A @ 8.3 ms half-sine - Withstands inrush and fault currents in power supply startup and overload events. |
| TJ Range | −65°C to +125°C - Enables deployment in automotive under-hood, industrial control, and outdoor-rated equipment. |
| RθJA | 90 °C/W - Thermal resistance measured on standard JEDEC pad layout; requires ≥200 mm² 2-oz copper pour for full 2 A rating. |
Pinout & Package
APD240VDTR-E1 is packaged in DO-214AC (SMA), a surface-mount plastic case with cathode-indicating band. The device contains two anodes and one shared cathode terminal.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode 1 | Input node for first diode path | Accepts positive input for dedicated rectification leg; electrically isolated from Anode 2. |
| Anode 2 | Input node for second diode path | Enables dual-input or parallel-output configurations; shares cathode with Anode 1 path. |
| Cathode | Common output node | Single low-impedance return path for both diodes; marked by cathode band on package body. |
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 protection | Integrated edge termination suppresses surface leakage and prevents premature avalanche failure under voltage transients. |
| High surge current rating | 50 A non-repetitive peak withstand enables robustness against line surges and inductor flyback energy in SMPS. |
| RoHS & "Green" compliance | Halogen- and antimony-free molding compound (<900 ppm Br/Cl, <1000 ppm Sb) meets IEC 61249-2-21 and EU directives. |
Applications
| DC-DC Buck Converter | Reverse Polarity Protection |
|---|---|
Use Scenario: Secondary-side synchronous rectification in 12 V → 3.3 V/5 V buck converters for FPGA power rails. IC Role / Device Role / Timing Role: Dual-anode Schottky rectifier replaces MOSFETs in low-side position; shared cathode simplifies PCB routing. Use Value: 0.5 V VF minimizes dropout and thermal rise at 2 A load, supporting >92% efficiency at 500 kHz switching frequency. |
Use Scenario: Input protection circuit for USB-C PD modules and industrial sensor nodes. IC Role / Device Role / Timing Role: Common-cathode dual diode provides redundant polarity blocking with single footprint. Use Value: 40 V VRRM accommodates 24 V nominal inputs with 50% safety margin; 0.5 mA IR prevents battery drain in standby mode. |
| High-Frequency Inverter | Free-Wheeling Diode |
Use Scenario: Output stage of 200 kHz resonant LLC inverter driving LED arrays in architectural lighting. IC Role / Device Role / Timing Role: Fast-switching Schottky pair handles bidirectional current during zero-voltage switching transitions. Use Value: Low junction capacitance (~100 pF) and negligible QRR reduce switching losses and EMI generation above 100 kHz. |
Use Scenario: Inductive load snubbing in solenoid drivers and motor H-bridge gate bias circuits. IC Role / Device Role / Timing Role: Dual-path freewheeling path absorbs back-EMF from two independent inductive loads. Use Value: 50 A IFSM rating safely clamps 40 A inductive spikes without degradation; −65°C to +125°C range supports wide ambient operation. |
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 2 A / 40 V Schottky; no dual-anode topology; VF = 0.5 V @ 2 A; RθJA = 95 °C/W. | Lacks integrated dual-anode functionality - requires two discrete devices for same circuit role. | Select when board space allows separate placement and shared-cathode routing is not required. |
| MBR240 (DO-214AA) | 2 A / 40 V dual common-cathode Schottky; VF = 0.52 V @ 2 A; RθJA = 100 °C/W; larger DO-214AA package. | Same electrical function but larger footprint and higher thermal resistance limits power density. | Choose only if legacy layout compatibility with DO-214AA is mandatory and thermal headroom exists. |
Compared with SS24 and MBR240, APD240VDTR-E1 offers superior power density via its optimized DO-214AC footprint, lower thermal resistance, and native dual-anode integration - reducing component count and improving layout efficiency in modern compact DC-DC designs.
Availability
APD240VDTR-E1 is available at Aetrix Electronics and suitable for DC-DC converters, reverse polarity protection circuits, and high-frequency inverters requiring stable component supply, consistent parametric performance, and long-term manufacturing continuity.
Supply support for APD240VDTR-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 APD240 belongs to Diodes' Schottky Rectifier product line, engineered specifically for high-efficiency, high-frequency power conversion in industrial, computing, and consumer power supplies where low VF and rugged surge handling are essential.
FAQ
What is the maximum junction temperature and how does it affect layout?
The APD240VDTR-E1 has a rated TJ range of −65°C to +125°C. To sustain 2 A continuous current, the PCB must provide adequate thermal relief: minimum 200 mm² of 2-ounce copper connected to both anode pads and the cathode pad, per Diodes' recommended DO-214AC pad layout (X = 5.6 mm, Y = 2.1 mm, G = 1.6 mm). Exceeding 125°C junction temperature risks parametric shift and accelerated wear-out.
Is APD240VDTR-E1 truly halogen-free and RoHS 3 compliant?
Yes. APD240VDTR-E1 carries Diodes' "Green" designation: it contains <900 ppm bromine, <900 ppm chlorine (total Br+Cl <1500 ppm), and <1000 ppm antimony, satisfying EU Directive 2015/863/EU (RoHS 3). Its matte tin annealed finish over copper leadframe is fully RoHS-compliant and solderable per MIL-STD-202, Method 208.
Can APD240VDTR-E1 replace a single 2 A Schottky in a freewheeling application?
Yes - with correct connection. Use only one anode and the shared cathode, leaving the second anode unconnected (not shorted). The unused anode presents no parasitic impact; VF and IR remain identical to datasheet specs. This preserves layout flexibility while retaining full surge and thermal ratings.
What is the meaning of "E1" in the part number APD240VDTR-E1?
The "E1" suffix denotes RoHS-compliant packaging with lead-free finish, per Diodes' internal coding. "VDTR" specifies DO-214AC (SMA) package, tape-and-reel packing (TR), and green ("V") material. This matches the ordering code APD240VRTR-G1 in Diodes' documentation, confirming identical die and construction - "E1" and "G1" are functionally equivalent RoHS/Green variants.
APD240VDTR-E1 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-E1 FAQ
1.How can I place an order for APD240VDTR-E1 through Aetrix?
Please submit a Request for Quotation (RFQ) for APD240VDTR-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 APD240VDTR-E1 reliable?
The price and inventory of APD240VDTR-E1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for APD240VDTR-E1 is usually 5 days.
3.What payment methods are accepted for APD240VDTR-E1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for APD240VDTR-E1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for APD240VDTR-E1?
APD240VDTR-E1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your APD240VDTR-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 APD240VDTR-E1?
For technical support, including APD240VDTR-E1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your APD240VDTR-E1 requirements.
6.How does Aetrix verify that APD240VDTR-E1 is sourced from the original manufacturer or authorized distributors?
All APD240VDTR-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 APD240VDTR-E1 meets industry standards.
7.What is the process for return or replacement of APD240VDTR-E1?
All APD240VDTR-E1 units undergo pre-shipment inspection (PSI). If there is an issue with APD240VDTR-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 APD240VDTR-E1 part is unused and in its original packaging.
Return procedure for APD240VDTR-E1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
APD240VDTR-E1 Tags
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Diodes Incorporated
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