Diodes Incorporated BAS299-7
- Part No.:
- BAS299-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
BAS299-7.pdf
- Description:
- DIODE GP 100V 430MA SOT23-3
- Quantity:
- Payment:

- Shipping:

Inventory:5,125
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Product details
Overview
BAS299-7 from Diodes Incorporated is a high-speed, high-current quad switching diode in SOT23 package, configured as four independent anode-cathode junctions for discrete signal routing or level translation. It delivers 100 V reverse voltage rating, 430 mA forward current per diode, 6.0 ns reverse recovery time, and 3.0 pF junction capacitance at 0 V - enabling fast edge-sensitive switching in automotive body control modules.
For engineers reviewing the BAS299-7 datasheet, BAS299-7 pinout, BAS299-7 application, or BAS299-7 equivalent, key selection criteria include reverse recovery time under 6.0 ns, forward voltage ≤0.855 V at 10 mA, thermal resistance of 417 °C/W, and AEC-Q101 qualification for automotive-grade reliability.
Technical Context
The BAS299-7 integrates four isolated silicon PN junctions in a single SOT23-6 package with common cathode configuration confirmed by internal schematic and top-view marking (BA9). Each diode exhibits low forward voltage drop and tightly controlled reverse recovery behavior optimized for 1–100 MHz digital signal switching.
Its thermal design relies on FR-4 board mounting with specified pad layout to sustain 300 mW total power dissipation up to +25°C ambient, derating linearly to zero at +150°C. Junction-to-ambient thermal resistance is fixed at 417 °C/W under standard JEDEC test conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Voltage Rating | 100 V - supports DC blocking and transient suppression in 24 V automotive supply rails |
| Forward Current (per diode) | 430 mA - enables direct drive of small-signal logic inputs or LED indicators without external buffering |
| Reverse Recovery Time | 6.0 ns - ensures minimal switching distortion in 10–50 MHz clock distribution or data line steering |
| Junction Capacitance | 3.0 pF at 0 V - maintains signal integrity in high-impedance analog switch paths and RF detector front-ends |
| Forward Voltage | 0.855 V at 10 mA - reduces conduction loss in bidirectional level-shifting circuits between 3.3 V and 5 V domains |
| Thermal Resistance | 417 °C/W - defines maximum allowable power dissipation on standard FR-4 PCB with recommended copper pad layout |
Pinout & Package
Package: SOT23-6, surface-mount plastic case with matte tin-plated alloy 42 leadframe; moisture sensitivity level 1 per J-STD-020; weight ≈ 0.01 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode 1 | Input node for first diode; connects to signal source requiring clamping or steering |
| 2 | Anode 2 | Input node for second diode; electrically isolated from Pin 1 but shares cathode network |
| 3 | Cathode Common | Shared return path for all four diodes; must be routed with low-inductance ground plane |
| 4 | Anode 3 | Input node for third diode; positioned for orthogonal signal routing on compact PCBs |
| 5 | Anode 4 | Input node for fourth diode; enables quad-channel redundancy or parallel current handling |
| 6 | No Connect | Internally unconnected terminal; left floating per datasheet - no PCB trace required |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 Qualified | Validated for automotive applications including engine control units and lighting drivers |
| Lead-Free & Halogen-Free | Fully RoHS 3 compliant with <900 ppm Br/Cl and <1000 ppm Sb - meets Tier-1 OEM environmental requirements |
| High Conductance | Low dynamic resistance yields <0.855 V VF at 10 mA - improves efficiency in battery-powered sensor interfaces |
| SOT23-6 Automation Compatibility | Standard footprint supports high-yield pick-and-place assembly with IPC-7351B-compliant land pattern |
Applications
| Automotive Body Control Module | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Signal routing between microcontroller GPIOs and 12 V/24 V load drivers in door module ECUs. IC Role / Device Role / Timing Role: Quad discrete switching diode providing bidirectional level translation and transient isolation. Use Value: 6.0 ns trr prevents pulse skew across four independent CAN/LIN bus interface lines during wake-up sequencing. | Use Scenario: Input conditioning for 24 V digital inputs on modular PLC backplanes with mixed-voltage logic. IC Role / Device Role / Timing Role: High-conductance clamp diode array protecting FPGA I/O banks from field-induced transients. Use Value: 100 V VRWM rating withstands industrial surge events while 3.0 pF CT avoids signal rise-time degradation above 50 MHz. |
| USB-C Port Power Switching | Medical Sensor Interface |
Use Scenario: Directional current control in USB-C CC line detection and VCONN switching circuits. IC Role / Device Role / Timing Role: Fast-recovery diode pair managing dual-role port negotiation timing windows. Use Value: Sub-10 ns trr ensures compliance with USB PD 3.0 handshake timing budgets under hot-plug conditions. | Use Scenario: ESD protection and signal rectification in low-power wearable biosensor front-ends. IC Role / Device Role / Timing Role: Low-capacitance switching element isolating analog sensor outputs from digital control logic. Use Value: 3.0 pF CT preserves bandwidth in 100 kHz–1 MHz bio-potential amplifiers without RC filtering penalties. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed quad diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| DMN3026LSD-13 | Single N-channel MOSFET with 30 V VDS, not a diode array; requires gate drive circuitry | Used for active load switching, not passive signal steering or clamping | Select only when active control and bidirectional conduction are required |
| BAT54CW-7-F | Quad Schottky diode with 30 V VR, 0.33 V VF at 10 mA, but 100 ns trr - 16× slower recovery | Suitable for low-voltage DC-DC bias networks, not high-frequency signal routing | Prefer for cost-sensitive 3.3 V systems where speed is secondary to forward loss |
Compared with BAT54CW-7-F and DMN3026LSD-13, the BAS299-7 uniquely balances 100 V blocking, 6.0 ns recovery, and AEC-Q101 qualification - making it the only option for automotive-grade, high-frequency discrete switching where Schottky leakage or MOSFET gate complexity is unacceptable.
Availability
BAS299-7 is available at Aetrix Electronics and suitable for automotive body electronics, industrial PLC input protection, USB-C power management, and medical sensor interface designs requiring stable component supply and long-term lifecycle assurance.
Supply support for BAS299-7 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, with design centers across Asia and manufacturing in China, Taiwan, and the Philippines.
The BAS299-7 belongs to Diodes' AEC-Q101-qualified discrete diode portfolio, engineered specifically for high-reliability signal routing in automotive and industrial control systems where speed, voltage margin, and environmental compliance are critical.
FAQ
What is the pin configuration of the BAS299-7?
The BAS299-7 uses a SOT23-6 package with pins 1–2–4–5 as individual anodes, pin 3 as the common cathode, and pin 6 internally unconnected. This configuration is verified in the DS41578 datasheet Figure 1 (top view) and internal schematic showing BA9 marking code alignment.
Is the BAS299-7 suitable for 5 V logic-level signal steering?
Yes - its forward voltage is 0.855 V at 10 mA and reverse recovery time is 6.0 ns, enabling clean switching of 5 V CMOS signals without propagation delay or cross-talk. The 100 V VRWM rating provides ample margin against logic rail overshoot.
Does the BAS299-7 meet automotive qualification standards?
Yes - it is fully qualified to AEC-Q101 Rev D for stress testing including HTGB, HTRB, TCT, and ESD (HBM ≥2 kV). This certification is explicitly stated in the mechanical data section of DS41578 Rev.1-2 and supported by Diodes' AEC-Q101 product family documentation.
How does the BAS299-7 compare to standard 1N4148 diodes in switching performance?
The BAS299-7 achieves 6.0 ns reverse recovery time versus 4 ns for 1N4148, but offers four integrated diodes in one SOT23-6 package, 100 V VRWM (vs. 100 V for 1N4148), and AEC-Q101 qualification - making it superior for space-constrained, automotive-grade multi-channel designs despite slightly slower trr.
BAS299-7 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
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 100 V
- Current - Average Rectified (Io):
- 430mA
- Voltage - Forward (Vf) (Max) @ If:
- 1.25 V @ 300 mA
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 6 ns
- Current - Reverse Leakage @ Vr:
- 1 µA @ 100 V
- Capacitance @ Vr, F:
- 3pF @ 0V, 1MHz
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
- Operating Temperature - Junction:
- -65°C ~ 150°C
BAS299-7 FAQ
1.How can I place an order for BAS299-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for BAS299-7 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 BAS299-7 reliable?
The price and inventory of BAS299-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BAS299-7 is usually 5 days.
3.What payment methods are accepted for BAS299-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BAS299-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BAS299-7?
BAS299-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BAS299-7 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 BAS299-7?
For technical support, including BAS299-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BAS299-7 requirements.
6.How does Aetrix verify that BAS299-7 is sourced from the original manufacturer or authorized distributors?
All BAS299-7 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 BAS299-7 meets industry standards.
7.What is the process for return or replacement of BAS299-7?
All BAS299-7 units undergo pre-shipment inspection (PSI). If there is an issue with BAS299-7, 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 BAS299-7 part is unused and in its original packaging.
Return procedure for BAS299-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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