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Diodes Incorporated BAS21Q-13-F
- Part No.:
- BAS21Q-13-F
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
BAS21Q-13-F.pdf
- Description:
- DIODE GP 250V 200MA SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:17,962
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Product details
Overview
BAS21Q-13-F from Diodes Incorporated is an AEC-Q101 qualified surface-mount fast switching diode in SOT23 package, rated for 250 V repetitive peak reverse voltage, 400 mA forward continuous current, and 50 ns reverse recovery time. It delivers high conductance and low capacitance (5.0 pF at 0 V) for signal routing and protection in automotive power management and sensor interface circuits.
For engineers reviewing the BAS21Q-13-F datasheet, BAS21Q-13-F pinout, BAS21Q-13-F application, or BAS21Q-13-F equivalent, key selection criteria include its 200 V DC blocking voltage, 100 nA reverse leakage at +25°C, thermal resistance of 500 °C/W, and qualification for automotive-grade change control and PPAP compliance.
Technical Context
This diode operates as a unidirectional silicon switching element with a planar epitaxial construction optimized for fast transient response. Its 50 ns reverse recovery time and 5.0 pF junction capacitance support high-frequency signal clamping and logic-level switching up to several MHz.
The device is characterized under standard FR-4 board conditions (2 oz copper, 1-inch² pad), with derated power dissipation above +25°C per the published curve. Its AEC-Q101 qualification confirms performance across −55°C to +150°C operating range with IATF 16949 manufacturing traceability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 250 V - Maximum non-repetitive reverse voltage before breakdown; defines safe operating margin in flyback or clamp circuits. |
| VRWM | 200 V - Continuous DC blocking capability; sets upper limit for steady-state reverse bias in power supply rails. |
| IF | 400 mA - Max continuous forward current at ambient temperature; supports moderate-current signal path switching. |
| trr | 50 ns - Measured with 30 mA forward/reverse current and 0.1×IR tail current; enables use in >1 MHz digital or PWM edge detection. |
| CT | 5.0 pF @ 0 V - Junction capacitance at zero bias; ensures minimal loading on high-speed data lines or RF detector inputs. |
| IR | 100 nA @ +25°C - Reverse leakage at rated VR; critical for low-power sensor biasing and precision reference isolation. |
| PD | 250 mW - Power dissipation on standard FR-4 layout; requires thermal derating above +25°C per published curve. |
Pinout & Package
Package: SOT23 - Surface-mount plastic package (UL 94V-0), 0.008 g weight, moisture sensitivity level 1, 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 rectification or clamping; polarity marked by cathode band on package top view. |
| Cathode (Pin 2) | Forward current exit / reverse blocking terminal | Connected to lower-potential node; carries full reverse voltage during off-state; referenced in schematic symbol and marking diagram. |
| NC / Heat Sink (Pin 3) | No internal connection | Unused terminal; electrically isolated; may be grounded or left floating per PCB layout requirements without affecting diode function. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive applications requiring PPAP documentation and IATF 16949 production control. |
| Fast 50 ns recovery | Enables reliable operation in high-frequency switching nodes without excessive ringing or cross-conduction risk. |
| Low 5.0 pF capacitance | Minimizes signal distortion and timing skew in high-speed logic interfaces and RF detector front-ends. |
| 100 nA reverse leakage @ +25°C | Preserves accuracy in low-current bias networks and battery-powered sensor conditioning circuits. |
| Green, halogen/antimony-free | Complies with RoHS 3 (2015/863/EU) and Diodes' "Green" definition (<900 ppm Br/Cl, <1000 ppm Sb). |
Applications
| Automotive Body Control Module (BCM) | Industrial Sensor Signal Conditioning |
|---|---|
Use Scenario: Clamping transient spikes on LIN bus lines and door actuator driver outputs. IC Role / Device Role / Timing Role: Fast-switching protection diode placed across inductive loads and communication lines. Use Value: Prevents ESD and load-dump induced damage using 250 V VRRM margin and 50 ns trr response. | Use Scenario: Isolating analog sensor outputs (e.g., RTD, thermistor bridges) from shared supply rails. IC Role / Device Role / Timing Role: Low-leakage blocking diode in precision bias paths and reference voltage routing. Use Value: Maintains measurement integrity with only 100 nA reverse current at +25°C and stable VF below 1.25 V. |
| Consumer USB Port Protection | Medical Patient Monitoring Input Stage |
Use Scenario: Reverse-polarity and ESD protection on 5 V USB VBUS and D+/D− lines. IC Role / Device Role / Timing Role: Bidirectional clamping diode configured in series-shunt topology with TVS. Use Value: Provides fast 50 ns turn-off and 5.0 pF capacitance to avoid signal integrity loss on 480 Mbps USB 2.0 data lines. | Use Scenario: Input protection for ECG/EEG front-end amplifiers exposed to defibrillation pulses. IC Role / Device Role / Timing Role: High-voltage standoff diode in series with instrumentation amplifier inputs. Use Value: Withstands 200 V DC blocking and 250 V transient peaks while adding negligible noise or offset due to low leakage and stable junction characteristics. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fast switching diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BAS21-13-F | Same electrical specs but not AEC-Q101 qualified; no PPAP or automotive change control. | Restricted to commercial/industrial use; unsuitable for automotive OEM BOMs requiring qualification evidence. | Select when cost sensitivity outweighs automotive compliance requirements and thermal/environmental stress is moderate. |
| 1N4148W-7-F | Higher 4.0 pF capacitance, slower 4 ns typical trr (but not guaranteed), 100 V VRRM, no AEC-Q101 rating. | Limited to low-voltage (<100 V) general-purpose switching; lacks automotive traceability and high-voltage margin. | Choose only for non-automotive, low-voltage, cost-driven designs where 250 V standoff is unnecessary. |
Compared with BAS21-13-F and 1N4148W-7-F, the BAS21Q-13-F uniquely combines automotive qualification, 250 V standoff, and 50 ns recovery-making it the sole option for AEC-compliant high-voltage signal switching in harsh environments.
Availability
BAS21Q-13-F is available at Aetrix Electronics and suitable for automotive body control modules, industrial sensor interfaces, USB port protection circuits, and medical patient monitoring input stages requiring stable component supply and long-term lifecycle assurance.
Supply support for BAS21Q-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 BAS21Q series belongs to Diodes' automotive-qualified fast switching diode product line, engineered specifically for high-reliability signal routing, transient suppression, and voltage clamping in safety-critical vehicle subsystems.
FAQ
What is the maximum operating temperature for BAS21Q-13-F?
The BAS21Q-13-F is rated for operation from −55°C to +150°C junction temperature. Its thermal resistance is 500 °C/W on standard FR-4 layout, so sustained 400 mA forward current requires careful thermal design above +25°C ambient to stay within this limit.
Is BAS21Q-13-F pin-compatible with BAS21-13-F?
Yes-both share identical SOT23 package and pinout (Anode–Cathode–NC). Mechanical and soldering compatibility is maintained, but BAS21Q-13-F adds AEC-Q101 qualification, PPAP capability, and automotive-specific process controls not present in the commercial-grade BAS21-13-F.
Does BAS21Q-13-F require special handling for moisture sensitivity?
No-BAS21Q-13-F has J-STD-020 Moisture Sensitivity Level 1, meaning it can be stored indefinitely at ≤30°C/85% RH without baking prior to reflow. No floor life limitation or dry pack requirement applies.
How does the 50 ns reverse recovery time impact circuit performance?
The guaranteed 50 ns trr ensures clean turn-off in high-frequency switching applications such as PWM-controlled LED drivers or digital signal clamping. It prevents charge storage-induced delay or shoot-through in bridge configurations and maintains signal fidelity up to ~2 MHz.
BAS21Q-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
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 250 V
- Current - Average Rectified (Io):
- 200mA
- Voltage - Forward (Vf) (Max) @ If:
- 1.25 V @ 200 mA
- Speed:
- Small Signal =< 200mA (Io), Any Speed
- Reverse Recovery Time (trr):
- 50 ns
- Current - Reverse Leakage @ Vr:
- 100 nA @ 250 V
- Capacitance @ Vr, F:
- 5pF @ 0V, 1MHz
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
- Operating Temperature - Junction:
- -65°C ~ 150°C
BAS21Q-13-F FAQ
1.How can I place an order for BAS21Q-13-F through Aetrix?
Please submit a Request for Quotation (RFQ) for BAS21Q-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 BAS21Q-13-F reliable?
The price and inventory of BAS21Q-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 BAS21Q-13-F is usually 5 days.
3.What payment methods are accepted for BAS21Q-13-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BAS21Q-13-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BAS21Q-13-F?
BAS21Q-13-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BAS21Q-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 BAS21Q-13-F?
For technical support, including BAS21Q-13-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BAS21Q-13-F requirements.
6.How does Aetrix verify that BAS21Q-13-F is sourced from the original manufacturer or authorized distributors?
All BAS21Q-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 BAS21Q-13-F meets industry standards.
7.What is the process for return or replacement of BAS21Q-13-F?
All BAS21Q-13-F units undergo pre-shipment inspection (PSI). If there is an issue with BAS21Q-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 BAS21Q-13-F part is unused and in its original packaging.
Return procedure for BAS21Q-13-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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