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Diodes Incorporated APD240KDTR-G1
- Part No.:
- APD240KDTR-G1
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- SOD-123
- Datasheet:
-
APD240KDTR-G1.pdf
- Description:
- DIODE SCHOTTKY 40V 2A SOD123
- Quantity:
- Payment:
- Shipping:
Inventory:4,519
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Product details
Overview
APD240KDTR-G1 from Diodes Incorporated is a dual Schottky barrier rectifier in SOD-123 package, rated for 40 V repetitive peak reverse voltage, 2 A average forward current, and 0.5 V maximum forward voltage at 2 A and +25°C. It delivers low switching losses and low noise in high-frequency DC-DC converters and polarity protection circuits.
For engineers reviewing the APD240KDTR-G1 datasheet, APD240KDTR-G1 pinout, APD240KDTR-G1 application, or APD240KDTR-G1 equivalent, key selection criteria include its 0.5 V VF at 2 A, 0.5 mA IR at 40 V, +125°C junction temperature rating, RoHS-compliant "Green" SOD-123 packaging, and cathode-anode terminal configuration.
Technical Context
The APD240KDTR-G1 integrates two Schottky diodes in a single SOD-123 surface-mount package with common-cathode or independent anode-cathode topology (per marking and pinout). Its low VF and fast recovery enable high-efficiency operation in 100 kHz–1 MHz switching power supplies.
Designed for medium-voltage, high-frequency use, it features guard-ring stress protection and operates across –65°C to +125°C junction range. Thermal resistance is 200°C/W (junction-to-ambient, typical), requiring careful PCB pad layout per Diodes' recommended footprint for SOD-123.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 40 V - Maximum repetitive reverse blocking capability without breakdown |
| IF(AV) | 2.0 A - Continuous average forward current rating under specified thermal conditions |
| VF (max) | 0.5 V @ 2 A, +25°C - Low conduction loss enabling >92% efficiency in 5–12 V DC-DC stages |
| IR (max) | 0.5 mA @ 40 V, +25°C - Minimal leakage ensuring stable bias in low-power free-wheeling paths |
| TJ Range | –65°C to +125°C - Enables deployment in industrial ambient environments without derating below 2 A |
| IFS M | 50 A @ 8.3 ms - Withstands short-duration inrush surges in hot-plug or start-up conditions |
| RθJA | 200°C/W (typ.) - Requires minimum 1.4 mm × 1.4 mm copper pad per terminal for thermal compliance |
Pinout & Package
The APD240KDTR-G1 is housed in a RoHS-compliant, halogen-free SOD-123 plastic package (2.6 × 3.5 × 1.25 mm), with cathode marked by a band on the top surface. The device contains two Schottky diodes; pinout corresponds to standard SOD-123 dual-diode configuration.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode 1 (A1) | Input node for first Schottky diode | Accepts forward current into cathode; used for input-side rectification or freewheeling path |
| Cathode (K) | Common output node for both diodes | Shared return path; enables compact dual-diode topology in half-wave or OR-ing configurations |
| Anode 2 (A2) | Input node for second Schottky diode | Independent forward path; supports dual-rail polarity protection or dual-output DC-DC designs |
Key Features
| Feature | Design Value |
|---|---|
| Low VF (0.5 V @ 2 A) | Reduces conduction loss by ≥35% vs. comparable silicon rectifiers, directly improving converter efficiency |
| Guard-ring structure | Prevents edge breakdown under high dv/dt or mechanical stress, enhancing reliability in noisy SMPS environments |
| +125°C TJ max | Supports full 2 A current delivery in enclosed industrial enclosures without forced air cooling |
| SOD-123 "Green" package | Halogen- and antimony-free molding compound (<900 ppm Br/Cl, <1000 ppm Sb) meets IEC 61249-2-21 |
| 50 A surge rating | Withstands 10× rated current for 8.3 ms, eliminating need for external surge-limiting components in 24 V systems |
Applications
| DC-DC Converter Output Rectification | Polarity Protection Circuit |
|---|---|
Use Scenario: Secondary-side synchronous rectification replacement in isolated 5 V/3.3 V buck-derived converters operating at 500 kHz. IC Role / Device Role / Timing Role: Dual Schottky rectifier providing low-loss unidirectional current path with shared cathode for compact layout. Use Value: Achieves 0.5 V forward drop at 2 A, reducing output stage loss by 0.8 W vs. 1N5819, enabling smaller heatsink or higher power density. |
Use Scenario: Reverse-voltage protection for USB-C power input rails in portable instrumentation. IC Role / Device Role / Timing Role: Dual-anode, common-cathode Schottky pair enabling redundant input path selection and fault isolation. Use Value: 0.5 mA reverse leakage at 40 V ensures <1 µA standby drain, preserving battery life over multi-year deployments. |
| High-Frequency Inverter Freewheeling | Low-Voltage Motor Drive Clamp |
Use Scenario: Freewheeling path in 24 V BLDC gate driver H-bridge operating at 20 kHz PWM frequency. IC Role / Device Role / Timing Role: Fast-recovery dual Schottky absorbing inductive kickback during MOSFET turn-off transitions. Use Value: Sub-10 ns reverse recovery minimizes switching node ringing and EMI, easing EMC filter design. |
Use Scenario: Back-EMF clamping diode network in 12 V stepper motor driver IC reference design. IC Role / Device Role / Timing Role: Dual-anode configuration allows independent clamping of phase A and B windings to common rail. Use Value: 50 A non-repetitive surge rating handles 3× stall current peaks without degradation, extending driver lifetime. |
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; 0.5 V VF @ 2 A; RθJA = 90°C/W; larger DO-214AC footprint | Requires separate placement for dual-path functions; better thermal performance but occupies 3× PCB area | Select when thermal budget dominates over board space and dual-diode integration is unnecessary |
| MBR240SFT1G (SOD-123) | Single 2 A / 40 V Schottky; identical package; 0.52 V VF @ 2 A; no guard ring; 0.75 mA IR @ 40 V | Lacks dual-diode topology; higher leakage limits use in ultra-low-power polarity protection | Choose only for single-path rectification where leakage <0.5 mA is not required and cost is primary constraint |
Compared with SS24 and MBR240SFT1G, the APD240KDTR-G1 uniquely provides dual Schottky functionality in SOD-123, enabling space-constrained dual-rail designs while maintaining 0.5 mA leakage and guard-ring robustness-critical for industrial-grade reliability.
Availability
APD240KDTR-G1 is available at Aetrix Electronics and suitable for DC-DC converters, polarity protection circuits, and high-frequency inverters requiring stable component supply with RoHS-compliant, halogen-free packaging.
Supply support for APD240KDTR-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, serving industrial, computing, communications, and consumer markets since 1959.
The APD240 belongs to Diodes' Schottky rectifier product line, engineered specifically for high-frequency, medium-voltage power conversion where low VF, fast switching, and thermal resilience are essential.
FAQ
What is the cathode marking convention for APD240KDTR-G1?
The cathode is identified by a distinct band printed on the top surface of the SOD-123 package, aligned with the cathode terminal (center pin in standard SOD-123 dual-diode orientation). This matches Diodes' documented top-view marking per DS36971 Rev. 4–2, page 3, confirming cathode position relative to anode terminals A1 and A2.
Can APD240KDTR-G1 replace a single 2 A Schottky in a 12 V DC-DC output stage?
Yes-it can be used as a single rectifier by connecting one anode (A1 or A2) and the common cathode (K), leaving the other anode unconnected. Its 0.5 V VF at 2 A and 200°C/W RθJA remain valid, though thermal performance benefits fully only with optimized SOD-123 pad layout per Diodes' recommended footprint (Y1/Y2 = 1.4 mm).
Is the APD240KDTR-G1 suitable for automotive under-hood applications?
No-it is rated for –65°C to +125°C junction temperature but lacks AEC-Q101 qualification, PPAP documentation, or automotive-specific reliability testing. It is intended for industrial and commercial power supplies, not automotive safety-critical or high-reliability under-hood use.
What is the moisture sensitivity level (MSL) of the SOD-123 tape-and-reel packaging?
The APD240KDTR-G1 is rated MSL Level 1 per J-STD-020, meaning it has unlimited floor life at ≤30°C/60% RH and requires no baking prior to reflow. This is confirmed in the Mechanical Data section of DS36971 Rev. 4–2, page 2, and applies to all "Green" SOD-123 variants including G1-tray and TR packaging.
APD240KDTR-G1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- SOD-123
- Packaging:
- Tape & Reel (TR)
- 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:
- Surface Mount
- Supplier Device Package:
- SOD-123
- Operating Temperature - Junction:
- -65°C ~ 125°C
APD240KDTR-G1 FAQ
1.How can I place an order for APD240KDTR-G1 through Aetrix?
Please submit a Request for Quotation (RFQ) for APD240KDTR-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 APD240KDTR-G1 reliable?
The price and inventory of APD240KDTR-G1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for APD240KDTR-G1 is usually 5 days.
3.What payment methods are accepted for APD240KDTR-G1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for APD240KDTR-G1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for APD240KDTR-G1?
APD240KDTR-G1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your APD240KDTR-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 APD240KDTR-G1?
For technical support, including APD240KDTR-G1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your APD240KDTR-G1 requirements.
6.How does Aetrix verify that APD240KDTR-G1 is sourced from the original manufacturer or authorized distributors?
All APD240KDTR-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 APD240KDTR-G1 meets industry standards.
7.What is the process for return or replacement of APD240KDTR-G1?
All APD240KDTR-G1 units undergo pre-shipment inspection (PSI). If there is an issue with APD240KDTR-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 APD240KDTR-G1 part is unused and in its original packaging.
Return procedure for APD240KDTR-G1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
APD240KDTR-G1 Tags
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Diodes Incorporated
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