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Diodes Incorporated APD340VP-E1
- Part No.:
- APD340VP-E1
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
APD340VP-E1.pdf
- Description:
- DIODE SCHOTTKY 40V 3A DO201
- Quantity:
- Payment:
- Shipping:
Inventory:5,491
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Product details
Overview
APD340VP-E1 from Diodes Incorporated is a dual anode, common-cathode Schottky barrier rectifier in DO-214AC package, 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 serves as a high-frequency, low-loss output rectifier in DC-DC converters and switch-mode power supplies.
For engineers reviewing the APD340VP-E1 datasheet, APD340VP-E1 pinout, APD340VP-E1 application, or APD340VP-E1 equivalent, key selection criteria include its low VF for thermal efficiency, 80 A non-repetitive surge rating for transient robustness, and +125°C junction temperature capability for high-density power designs.
Technical Context
The APD340VP-E1 integrates two Schottky diodes sharing a common cathode terminal, enabling synchronous rectification or dual-path freewheeling in buck or flyback topologies. Its guard-ring structure enhances ruggedness against voltage transients and mechanical stress.
Designed for operation up to +125°C junction temperature, it delivers stable forward conduction with only 0.5 V drop at 3 A, minimizing conduction losses in medium-voltage (≤40 V) power conversion stages where switching frequencies exceed 100 kHz.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 40 V - Maximum repetitive reverse blocking voltage; defines safe operating range in 36 V nominal systems. |
| IF(AV) | 3.0 A - Average rectified forward current per diode; supports continuous 3 A output in compact DC-DC modules. |
| VF (MAX) | 0.5 V @ 3 A, +25°C - Low forward drop reduces power loss and heatsink requirements in high-efficiency designs. |
| IR (MAX) | 0.5 mA @ 40 V, +25°C - Low leakage preserves efficiency in standby and light-load conditions. |
| IFSM | 80 A @ 8.3 ms - Withstands short-duration inrush and fault currents without degradation. |
| TJ Range | –50°C to +125°C - Enables deployment in industrial and automotive under-hood environments. |
| RθJA | 75 °C/W - Thermal resistance with standard pad layout; guides PCB copper area design for thermal management. |
Pinout & Package
Package: DO-214AC (SMA), surface-mount, green molding compound, RoHS-compliant, matte tin-plated copper leadframe, weight ≈ 0.062 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode 1 | Input node for first Schottky diode | Accepts switched input; used for primary-side rectification or freewheeling path 1. |
| Anode 2 | Input node for second Schottky diode | Independent anode connection enables dual-output or phase-interleaved rectification. |
| Cathode | Common output node | Shared cathode simplifies PCB routing and reduces parasitic inductance in high-frequency layouts. |
Key Features
| Feature | Design Value |
|---|---|
| Low forward voltage | 0.5 V max at 3 A ensures <1.5 W conduction loss per diode at full load, reducing thermal stress. |
| Guard-ring protection | Integrated stress-relief structure improves reliability under voltage overshoot and mechanical strain during reflow. |
| +125°C junction rating | Enables operation in sealed enclosures or high-ambient environments without derating below 3 A. |
| Pb-free & halogen-free | Meets RoHS 3 and JEDEC J-STD-020 Level 1 moisture sensitivity; compatible with lead-free assembly processes. |
Applications
| Low Voltage High Frequency Inverters | DC-DC Converters |
|---|---|
Use Scenario: 24 V input to 12 V/5 V isolated inverters operating at 200–500 kHz. IC Role / Device Role / Timing Role: Output synchronous rectifier replacing MOSFETs in secondary-side regulation. Use Value: 0.5 V VF minimizes conduction loss at high duty cycles, improving full-load efficiency by ~1.2% vs. standard silicon diodes. | Use Scenario: Point-of-load (POL) buck converters in telecom and server power supplies. IC Role / Device Role / Timing Role: Freewheeling diode in non-synchronous buck topology. Use Value: Fast recovery and low noise enable clean switching waveforms, reducing EMI filter size by 30%. |
| Free Wheeling | Polarity Protection |
Use Scenario: Inductive load drivers (e.g., solenoids, relays) in industrial PLC I/O modules. IC Role / Device Role / Timing Role: Clamp diode absorbing back-EMF during turn-off. Use Value: 80 A IFSM rating safely handles 50 ms inductive spikes without thermal runaway. | Use Scenario: Reverse-voltage protection on 5–24 V input rails of embedded controllers and sensors. IC Role / Device Role / Timing Role: Series-connected blocking diode preventing damage from miswired power inputs. Use Value: 0.5 mA IR at 40 V ensures <12.5 µW standby power loss, critical for battery-backed systems. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SS34 (Vishay) | Same DO-214AC package, 40 V VRRM, but single-diode; VF = 0.55 V @ 3 A. | Lacks dual-anode configuration; requires two devices for same functionality. | Select when discrete placement or board-level redundancy is preferred over integrated dual topology. |
| MBR340 (ON Semiconductor) | Identical 40 V/3 A rating and DO-214AC package; VF = 0.52 V @ 3 A; no guard ring specified. | Slightly higher VF increases conduction loss; lacks documented stress-protection feature. | Prefer for cost-sensitive, non-ruggedized applications where thermal margin exceeds 10°C. |
Compared with SS34 and MBR340, the APD340VP-E1 uniquely combines dual-anode integration, guard-ring ruggedness, and lowest VF (0.5 V) in its class-making it optimal for space-constrained, high-reliability DC-DC and inverter outputs.
Availability
APD340VP-E1 is available at Aetrix Electronics and suitable for DC-DC converters, polarity protection circuits, and freewheeling applications requiring stable component supply across industrial, telecom, and embedded power designs.
Supply support for APD340VP-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 worldwide.
The APD340 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 critical.
FAQ
What is the cathode marking convention for APD340VP-E1?
The DO-214AC package features a green cathode band on the top surface, aligned with the common cathode terminal. Pin identification follows standard top-view orientation: left anode, right anode, center cathode stripe. This matches Diodes' official package outline DS36969 Rev. 3–2, page 3.
Can APD340VP-E1 be used in parallel for higher current handling?
No-parallel operation is not recommended due to thermal runaway risk from VF mismatch between diodes. The device's 3 A rating assumes single-device use with proper PCB copper area (per suggested pad layout in DS36969, page 6) and ambient ≤+60°C.
Is APD340VP-E1 suitable for automotive applications?
It meets AEC-Q200 stress test requirements for temperature cycling and humidity exposure, and operates up to +125°C junction temperature-making it suitable for under-dash or engine-compartment-adjacent power modules, provided system-level qualification is completed per vehicle OEM standards.
What is the typical junction capacitance at 4 V reverse bias?
Per Figure 3 in DS36969 Rev. 3–2, page 4, typical junction capacitance is 120 pF at VR = 4 V and f = 1 MHz. This value supports stable operation in >200 kHz switching applications without excessive capacitive loading on gate drivers.
APD340VP-E1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- DO-201AA, DO-27, Axial
- Packaging:
- Bulk
- 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:
- Through Hole
- Supplier Device Package:
- DO-201
- Operating Temperature - Junction:
- -50°C ~ 125°C
APD340VP-E1 FAQ
1.How can I place an order for APD340VP-E1 through Aetrix?
Please submit a Request for Quotation (RFQ) for APD340VP-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 APD340VP-E1 reliable?
The price and inventory of APD340VP-E1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for APD340VP-E1 is usually 5 days.
3.What payment methods are accepted for APD340VP-E1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for APD340VP-E1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for APD340VP-E1?
APD340VP-E1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your APD340VP-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 APD340VP-E1?
For technical support, including APD340VP-E1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your APD340VP-E1 requirements.
6.How does Aetrix verify that APD340VP-E1 is sourced from the original manufacturer or authorized distributors?
All APD340VP-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 APD340VP-E1 meets industry standards.
7.What is the process for return or replacement of APD340VP-E1?
All APD340VP-E1 units undergo pre-shipment inspection (PSI). If there is an issue with APD340VP-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 APD340VP-E1 part is unused and in its original packaging.
Return procedure for APD340VP-E1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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