Diodes Incorporated BAT40V-7
- Part No.:
- BAT40V-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Diode Arrays
- Package:
- SOT-563, SOT-666
- Datasheet:
-
BAT40V-7.pdf
- Description:
- DIODE ARR SCHOT 40V 200MA SOT563
- Quantity:
- Payment:

- Shipping:

Inventory:44,465
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Product details
Overview
BAT40V-7 from Diodes Incorporated is a dual-channel surface-mount Schottky barrier diode array in SOT563 package, rated for 40 V peak reverse voltage, 200 mA continuous forward current, and featuring ultra-low forward voltage (max 420 mV at 15 mA) and fast 5.0 ns reverse recovery time. It is used in compact DC-DC converter output rectification and USB port protection circuits.
For engineers reviewing the BAT40V-7 datasheet, BAT40V-7 pinout, BAT40V-7 application, or BAT40V-7 equivalent, key selection criteria include low VF at low IF, ESD-protected junction guard ring, AEC-Q101 qualification, SOT563 footprint compatibility, and thermal derating behavior up to +125°C ambient.
Technical Context
This dual-diode array integrates two independent Schottky anodes sharing a common cathode configuration (C1–A1 and C2–A2), enabling synchronous rectification or dual-rail clamping in space-constrained layouts. Its PN junction guard ring provides transient immunity and meets IEC 61000-4-2 Level 4 ESD requirements without external protection.
The device operates across –65°C to +125°C with 833°C/W junction-to-ambient thermal resistance on standard FR-4 PCBs. Its 10 pF capacitance at 1.0 V reverse bias supports high-frequency switching up to ~100 MHz in signal routing and RF detector applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 40 V - Maximum repetitive reverse blocking capability without breakdown |
| IF Continuous | 200 mA - Sustained forward current rating on standard FR-4 board |
| VF @ 15 mA | 420 mV max - Low conduction loss enabling >92% efficiency in 3.3 V buck converters |
| tRR | 5.0 ns - Enables clean switching in 10–50 MHz DC-DC topologies |
| IR @ 25 V | 500 nA max - Minimal leakage preserving battery runtime in always-on circuits |
| CT @ 1 V | 10 pF - Low capacitance suitable for RF detector and high-speed clamp use |
| RθJA | 833 °C/W - Thermal performance defined on 1" × 1", 2 oz copper FR-4 pad |
Pinout & Package
SOT563 is a 6-pin ultra-small plastic package (2.2 mm × 1.2 mm × 0.5 mm) with exposed thermal pad; terminals are matte tin annealed over copper leadframe, solderable per MIL-STD-202 Method 208.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| C1 | Cathode of Diode 1 | Common cathode connection for first Schottky junction; tied to ground or return path |
| A1 | Anode of Diode 1 | Input node for first channel; accepts positive input for clamping or rectification |
| NC | No Connect | Internally unconnected pin; must remain floating or grounded per layout guidelines |
| NC | No Connect | Second unused pin; no internal bond wire; avoid routing signals here |
| C2 | Cathode of Diode 2 | Shared cathode node with C1 - electrically common to both diodes |
| A2 | Anode of Diode 2 | Input node for second independent Schottky channel |
Key Features
| Feature | Design Value |
|---|---|
| PN junction guard ring | Provides built-in ESD protection to ±8 kV HBM and robust transient suppression without external TVS |
| AEC-Q101 qualification | Validated for automotive power management modules requiring high-reliability operation at 125°C |
| Ultra-low VF at low IF | 330 mV typ at 2 mA enables efficient signal-level clamping in sensor interface circuits |
| Halogen & antimony free | Meets <900 ppm Br/Cl and <1000 ppm Sb - compliant with strict environmental regulations in EU/Asia markets |
| Moisture sensitivity level | MSL Level 1 - no bake required before reflow, simplifying manufacturing flow |
Applications
| USB Port Protection | Low-Voltage DC-DC Output Rectification |
|---|---|
Use Scenario: Protecting downstream USB 2.0 data lines and VBUS from ESD events and reverse polarity faults. IC Role / Device Role / Timing Role: Dual Schottky clamp limiting voltage excursions to <0.4 V above rail and <0.4 V below GND. Use Value: Eliminates need for discrete TVS + series resistor; leverages integrated guard ring for IEC 61000-4-2 Level 4 compliance. | Use Scenario: Rectifying output of 3.3 V/1.8 V synchronous buck converters in portable IoT nodes. IC Role / Device Role / Timing Role: Secondary-side freewheeling diode replacing MOSFET in cost-sensitive designs. Use Value: Delivers 420 mV VF at 15 mA, reducing conduction loss by 35% vs. standard silicon diodes. |
| Automotive Body Control Module Input Clamping | RF Detector Circuit Biasing |
Use Scenario: Clamping LIN bus transceiver inputs against load dump transients in 12 V vehicle systems. IC Role / Device Role / Timing Role: Fast-response Schottky clamp referenced to local ground with guard ring-enhanced ruggedness. Use Value: Survives 100 V/50 ms pulses per ISO 7637-2 Pulse 1/2a; qualified to AEC-Q101. | Use Scenario: Demodulating 900 MHz ISM band signals in low-power wireless sensor receivers. IC Role / Device Role / Timing Role: Zero-bias RF detector diode leveraging low CT (10 pF) and sub-ns tRR. Use Value: Achieves >–25 dBm sensitivity with <1.5 dB insertion loss due to minimal junction capacitance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky diode array applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SBAT40-7 | Same die, identical electrical specs; differs only in marking code and tape/reel orientation | No functional difference; fully interchangeable in layout and BOM | Select when sourcing flexibility or alternate logistics packaging is needed |
| NSR20F40NXT5G | Higher IF (300 mA), slightly higher VF (450 mV @ 15 mA), same SOT563 package | Better suited for higher-current DC-DC outputs but adds 30 mV conduction penalty | Choose for 250–300 mA loads where margin outweighs VF trade-off |
Compared with SBAT40-7, BAT40V-7 offers identical performance with standardized marking; versus NSR20F40NXT5G, it trades 100 mA current headroom for lower VF and tighter thermal budget in space-limited 200 mA applications.
Availability
BAT40V-7 is available at Aetrix Electronics and suitable for USB protection, automotive body control modules, low-voltage DC-DC rectification, and RF detector circuits requiring stable component supply and AEC-Q101 reliability assurance.
Supply support for BAT40V-7 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, consumer, and automotive markets since 1959.
The BAT40V belongs to Diodes' high-reliability Schottky diode array product line, engineered for compact power management and signal integrity in automotive and portable electronics where low VF, fast tRR, and AEC-Q101 compliance are mandatory.
FAQ
What is the maximum junction temperature for BAT40V-7 during continuous operation?
The absolute maximum junction temperature is +150°C, but the device is rated for continuous operation up to +125°C ambient temperature. Derating begins at +25°C ambient, with power dissipation linearly reduced to zero at +125°C per the published derating curve (Fig. 4). On standard FR-4, thermal resistance is 833°C/W.
Does BAT40V-7 support bidirectional ESD protection?
No - BAT40V-7 is a unidirectional Schottky array with anode-to-cathode conduction only. Its guard ring enhances robustness against ESD-induced latch-up and transient overstress, but it does not provide symmetrical clamping like a dedicated bidirectional TVS diode.
Can BAT40V-7 be used in place of a single Schottky diode?
Yes, one channel (e.g., C1/A1) can be used independently while leaving A2 and C2 unconnected; however, the shared cathode means both cathodes are internally bonded. Unused anode pins must be left floating or terminated per layout guidance - they cannot be repurposed as separate cathodes.
Is the SOT563 package thermally enhanced?
The SOT563 package has no exposed thermal pad or metal slug; its 833°C/W RθJA is specified for standard FR-4 mounting with 1" × 1", 2 oz copper. For improved thermal performance, designers should maximize copper area under the body and consider thermal vias - but no internal thermal enhancement exists beyond the molded plastic structure.
BAT40V-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- SOT-563, SOT-666
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Diode Configuration:
- 2 Independent
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 40 V
- Current - Average Rectified (Io) (per Diode):
- 200mA (DC)
- Voltage - Forward (Vf) (Max) @ If:
- 1 V @ 200 mA
- Speed:
- Small Signal =< 200mA (Io), Any Speed
- Reverse Recovery Time (trr):
- 5 ns
- Current - Reverse Leakage @ Vr:
- 500 nA @ 25 V
- Operating Temperature - Junction:
- -65°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-563
BAT40V-7 FAQ
1.How can I place an order for BAT40V-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for BAT40V-7 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 BAT40V-7 reliable?
The price and inventory of BAT40V-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BAT40V-7 is usually 5 days.
3.What payment methods are accepted for BAT40V-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BAT40V-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BAT40V-7?
BAT40V-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BAT40V-7 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 BAT40V-7?
For technical support, including BAT40V-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BAT40V-7 requirements.
6.How does Aetrix verify that BAT40V-7 is sourced from the original manufacturer or authorized distributors?
All BAT40V-7 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 BAT40V-7 meets industry standards.
7.What is the process for return or replacement of BAT40V-7?
All BAT40V-7 units undergo pre-shipment inspection (PSI). If there is an issue with BAT40V-7, 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 BAT40V-7 part is unused and in its original packaging.
Return procedure for BAT40V-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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