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Diodes Incorporated BAS40-04Q-13-F
- Part No.:
- BAS40-04Q-13-F
- Manufacturer:
- Diodes Incorporated
- Category:
- Diode Arrays
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
BAS40-04Q-13-F.pdf
- Description:
- DIODE ARR SCHOT 40V 200MA SOT233
- Quantity:
- Payment:
- Shipping:
Inventory:4,623
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Product details
Overview
BAS40-04Q-13-F from Diodes Incorporated is a 40 V, 200 mA surface-mount Schottky barrier diode in SOT23 package, featuring 380 mV typical forward voltage at 1 mA, 5.0 ns reverse recovery time, and PN junction guard ring for transient/ESD protection-used in automotive power rail clamping and low-loss DC-DC converter freewheeling paths.
For engineers reviewing the BAS40-04Q-13-F datasheet, BAS40-04Q-13-F pinout, BAS40-04Q-13-F application, or BAS40-04Q-13-F equivalent, key selection criteria include reverse breakdown voltage (40 V), forward voltage at 40 mA (≤1.0 V), leakage current at 30 V (≤200 nA), thermal resistance (357 °C/W), and AEC-Q101 qualification status for automotive-grade reliability.
Technical Context
This Schottky diode uses a metal–semiconductor junction to achieve fast switching (trr ≤ 5.0 ns) and low conduction loss, with a guard ring structure integrated into the die to suppress edge breakdown and improve ESD robustness (HBM > 8 kV per AEC-Q101). It operates across –55 °C to +125 °C junction temperature range.
The device is optimized for high-frequency rectification in space-constrained applications: its 4.0–5.0 pF capacitance at 0 V bias enables minimal signal distortion in RF detector or sample-and-hold circuits, while its 350 mW power dissipation rating supports continuous operation under 200 mA DC load with proper PCB thermal relief.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 40 V - Maximum repetitive reverse voltage before breakdown; sets upper limit for clamping or blocking applications. |
| IF | 200 mA - Continuous forward current rating; defines steady-state power delivery capability in freewheeling paths. |
| VF Max | 1.0 V @ 40 mA - Ensures low conduction loss in 3.3 V/5 V rail protection and synchronous rectifier auxiliary paths. |
| IR Max | 200 nA @ 30 V - Enables use in high-impedance bias networks and precision analog front-ends without leakage-induced offset. |
| trr | 5.0 ns - Supports switching frequencies up to ~70 MHz in snubberless flyback or boost converters. |
| CT | 5.0 pF @ 0 V - Limits capacitive loading on high-speed logic lines or RF signal paths where parasitic coupling must be minimized. |
| RθJA | 357 °C/W - Requires ≥25 mm² copper pour for safe operation at full current in ambient temperatures up to 85 °C. |
Pinout & Package
Package: SOT23 (Standard), molded plastic, UL 94V-0 rated, 0.008 g mass, lead-free matte tin plating over Alloy 42 leadframe.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Pin 1) | Forward current entry point | Connected to higher-potential node in clamping or rectification path; polarity-marked on top surface with cathode band. |
| Cathode (Pin 2) | Forward current exit / reverse blocking terminal | Connected to ground or lower-potential rail; serves as reference for reverse voltage rating and leakage path. |
| NC / Heat Sink (Pin 3) | No internal connection | Unused terminal; may be grounded or left floating per layout requirements-no electrical function in this diode variant. |
Key Features
| Feature | Design Value |
|---|---|
| Low forward voltage drop | 380 mV typical at 1 mA enables >95% efficiency in 3.3 V supply rail clamp circuits. |
| Fast switching speed | 5.0 ns reverse recovery time allows stable operation in 1–10 MHz DC-DC converters without snubbers. |
| PN junction guard ring | Integrated edge termination structure improves ESD immunity (HBM ≥ 8 kV) and prevents premature avalanche at die periphery. |
| AEC-Q101 qualification | Validated for automotive power management modules requiring PPAP documentation and IATF 16949 manufacturing control. |
| Green RoHS compliance | Halogen- and antimony-free (<900 ppm Br/Cl, <1000 ppm Sb) meets EU ELV and China RoHS II environmental mandates. |
Applications
| Automotive Power Rail Protection | High-Frequency DC-DC Converter Freewheeling |
|---|---|
Use Scenario: Reverse polarity and load dump protection in 12 V vehicle infotainment power supplies. IC Role / Device Role / Timing Role: Unidirectional clamping diode placed between battery input and LDO regulator input. Use Value: 40 V VRRM withstands ISO 7637-2 pulse 5a (±100 V transients); 200 nA leakage avoids battery drain during sleep mode. | Use Scenario: Freewheeling path in 2 MHz synchronous buck converter for ADAS camera module. IC Role / Device Role / Timing Role: Low-loss catch diode replacing MOSFET body diode in non-synchronous configuration. Use Value: 380 mV VF reduces conduction loss by 40% vs. standard silicon diode; 5 ns trr prevents cross-conduction during dead-time. |
| RF Signal Detection | Low-Power Sensor Bias Network |
Use Scenario: Envelope detection in 900 MHz ISM-band receiver front-end. IC Role / Device Role / Timing Role: Zero-bias Schottky detector diode in passive peak detector circuit. Use Value: 5.0 pF CT minimizes detuning of matching network; 200 nA IR preserves signal-to-noise ratio in µV-level RF inputs. | Use Scenario: Precision biasing of MEMS pressure sensor bridge in industrial IoT node. IC Role / Device Role / Timing Role: Leakage-suppressing blocking diode in ultra-low-current reference voltage divider. Use Value: Sub-200 nA reverse leakage ensures <0.1% error in 100 nA bias current paths over –40 °C to +85 °C. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SBAT54ALT1G | Same SOT23 package, 30 V VRRM, 200 mA IF, but no AEC-Q101 qualification or guard ring. | Not suitable for automotive transients; limited to consumer-grade 3.3 V/5 V rail protection. | Select only for cost-sensitive non-automotive designs where 40 V margin is unnecessary. |
| NSR0230P2T5G | 30 V VRRM, 200 mA IF, 450 mV VF typ., AEC-Q101 qualified, but no guard ring and higher leakage (500 nA). | Acceptable for automotive 5 V systems but not for 12 V load dump; less ESD robustness in connector-facing locations. | Prefer when lower VF is critical and 30 V rating suffices; avoid where 40 V margin or HBM >8 kV is required. |
Compared with SBAT54ALT1G and NSR0230P2T5G, BAS40-04Q-13-F uniquely combines 40 V blocking, AEC-Q101 qualification, and guard-ring-enhanced ESD tolerance-making it the only option among the three for 12 V automotive clamping where both voltage headroom and transient immunity are mandatory.
Availability
BAS40-04Q-13-F is available at Aetrix Electronics and suitable for automotive power management, high-frequency DC-DC converters, and RF detection applications requiring stable component supply, long-term lifecycle support, and traceable green-material compliance.
Supply support for BAS40-04Q-13-F 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 BAS40 series belongs to Diodes' automotive-qualified Schottky diode product line, engineered specifically for reliable transient suppression and efficient rectification in harsh-environment vehicle subsystems.
FAQ
What is the maximum junction temperature for BAS40-04Q-13-F?
The absolute maximum junction temperature is +125 °C, with derating beginning at +25 °C ambient. At 85 °C ambient, the device supports 200 mA only if PCB thermal relief provides ≤200 °C/W effective RθJA; standard FR-4 layout yields 357 °C/W, limiting continuous current to ~110 mA at that temperature.
Does BAS40-04Q-13-F have a cathode marking on the package?
Yes-the SOT23 package features a visible cathode band adjacent to Pin 2 (cathode terminal) on the top surface. The marking code "K44" identifies the BAS40-04Q variant, and date code (e.g., "LD" for December 2024) appears beside it per Diodes' standard SOT23 labeling convention.
Is BAS40-04Q-13-F suitable for reverse battery protection?
Yes-it is commonly used in series reverse-polarity protection for 12 V automotive modules. With 40 V VRRM, it blocks reverse battery connections up to ±100 V transients (ISO 7637-2 Pulse 5a), and its 380 mV VF at 100 mA adds only 38 mW conduction loss in a 100 mA load path.
How does the PN junction guard ring affect ESD performance?
The guard ring reduces electric field crowding at the die edge, raising the HBM ESD threshold to ≥8 kV (per AEC-Q101 stress test) and improving robustness against connector hot-plug events. This is confirmed by Diodes' qualification report DS11006 Rev. 27, which lists guard ring implementation as a key differentiator versus non-Q variants.
BAS40-04Q-13-F Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Diode Configuration:
- 1 Pair Series Connection
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 40 V
- Current - Average Rectified (Io) (per Diode):
- 200mA (DC)
- Voltage - Forward (Vf) (Max) @ If:
- 1 V @ 40 mA
- Speed:
- Small Signal =< 200mA (Io), Any Speed
- Reverse Recovery Time (trr):
- 5 ns
- Current - Reverse Leakage @ Vr:
- 200 nA @ 30 V
- Operating Temperature - Junction:
- -55°C ~ 125°C
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
BAS40-04Q-13-F FAQ
1.How can I place an order for BAS40-04Q-13-F through Aetrix?
Please submit a Request for Quotation (RFQ) for BAS40-04Q-13-F 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 BAS40-04Q-13-F reliable?
The price and inventory of BAS40-04Q-13-F are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BAS40-04Q-13-F is usually 5 days.
3.What payment methods are accepted for BAS40-04Q-13-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BAS40-04Q-13-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BAS40-04Q-13-F?
BAS40-04Q-13-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BAS40-04Q-13-F 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 BAS40-04Q-13-F?
For technical support, including BAS40-04Q-13-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BAS40-04Q-13-F requirements.
6.How does Aetrix verify that BAS40-04Q-13-F is sourced from the original manufacturer or authorized distributors?
All BAS40-04Q-13-F 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 BAS40-04Q-13-F meets industry standards.
7.What is the process for return or replacement of BAS40-04Q-13-F?
All BAS40-04Q-13-F units undergo pre-shipment inspection (PSI). If there is an issue with BAS40-04Q-13-F, 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 BAS40-04Q-13-F part is unused and in its original packaging.
Return procedure for BAS40-04Q-13-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BAS40-04Q-13-F Tags
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