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Diodes Incorporated BAS21TMQ-13
- Part No.:
- BAS21TMQ-13
- Manufacturer:
- Diodes Incorporated
- Category:
- Diode Arrays
- Package:
- SOT-23-6
- Datasheet:
-
BAS21TMQ-13.pdf
- Description:
- DIODE ARRAY GP 250V 250MA SOT-26
- Quantity:
- Payment:
- Shipping:
Inventory:9,980
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Product details
Overview
BAS21TMQ-13 from Diodes Incorporated is a surface-mount high-voltage dual switching diode array in SOT26 package, featuring 250 V repetitive peak reverse voltage, 50 ns reverse recovery time, and 200 mA continuous forward current per element. It serves as a fast, compact solution for voltage clamping and signal routing in automotive-grade power management circuits.
For engineers reviewing the BAS21TMQ-13 datasheet, BAS21TMQ-13 pinout, BAS21TMQ-13 application, or BAS21TMQ-13 equivalent, this device is selected for high-reliability switching where low capacitance (5 pF), tight thermal resistance (417 °C/W), and AEC-Q101 qualification are critical design requirements.
Technical Context
This dual diode array integrates two independent high-voltage switching elements sharing a common cathode configuration in a single SOT26 package. Its 250 V VR(RRM), 50 ns trr, and 1.25 V VF @ 200 mA support fast transient response in DC-DC feedback paths and ESD protection networks.
The device operates across –65 °C to +150 °C and maintains <100 nA reverse leakage at 200 V and 25 °C, enabling stable performance in under-hood automotive environments. Its 300 mW power dissipation rating is validated on FR-4 with 2 oz copper pads per Diodes' recommended layout.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VR(RRM) | 250 V - supports input stage clamping in 24 V automotive systems with 100 V transients |
| trr | 50 ns - enables clean switching in PWM frequencies up to 2 MHz |
| VF @ 200 mA | 1.25 V - limits conduction loss to ≤250 mW per diode at rated current |
| CT @ 0 V | 5 pF - minimizes signal distortion in high-frequency data line protection |
| RθJA | 417 °C/W - requires minimal PCB copper area for thermal management in space-constrained layouts |
| IF(AV) | 250 mA - sustains average rectified load in auxiliary bias supplies |
| TJ Range | –65 °C to +150 °C - qualified for engine control unit and transmission control module mounting locations |
Pinout & Package
Package: SOT26 - 6-pin surface-mount plastic package with matte tin-plated copper alloy leadframe, moisture sensitivity level 1, and UL 94V-0 flammability rating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode 1 | Input terminal for first diode element; connects to switched node in clamp or OR-ing circuit |
| 2 | Cathode Common | Shared cathode node for both diodes; ties to regulated rail or ground reference |
| 3 | Anode 2 | Input terminal for second diode element; enables dual-path signal routing or redundancy |
| 4 | No Connect | Internally unconnected; must be left floating or tied to cathode for mechanical stability |
| 5 | Cathode Common | Redundant cathode bond; electrically identical to Pin 2, improves current sharing and thermal path |
| 6 | No Connect | Internally unconnected; no electrical function; used for package symmetry and solder joint reliability |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive powertrain and chassis applications per stress test requirements |
| Common-cathode dual configuration | Enables compact implementation of dual-rail clamping or redundant signal paths without discrete pairing |
| 5 pF junction capacitance | Preserves signal integrity in CAN FD and LIN bus protection circuits up to 5 Mbps |
| 417 °C/W thermal resistance | Permits operation at full 200 mA current with ≤30 °C junction rise on standard 2-layer FR-4 |
| Halogen- and antimony-free "Green" construction | Meets JESD201A Class 2 whisker resistance and RoHS 3 (2015/863/EU) compliance |
Applications
| Automotive Engine Control Unit (ECU) | Industrial PLC Input Protection |
|---|---|
Use Scenario: Clamping inductive kickback from solenoid drivers during PWM switching. IC Role / Device Role / Timing Role: Dual-diode array provides bidirectional transient suppression on two independent 12 V actuator lines. Use Value: 250 V VR(RRM) withstands ISO 7637-2 Pulse 1a (–150 V) and Pulse 3b (–100 V), reducing need for external TVS. | Use Scenario: Protecting 24 V digital input channels against field-wiring reversals and surge events. IC Role / Device Role / Timing Role: Common-cathode configuration routes reversed polarity to shared 24 V rail while blocking forward faults. Use Value: 50 ns trr ensures fast turn-off during polarity reversal, preventing latch-up in upstream logic buffers. |
| DC-DC Converter Feedback Path | USB-C Port Power Switching |
Use Scenario: Isolating optocoupler feedback signals from primary-side noise in isolated flyback converters. IC Role / Device Role / Timing Role: High-speed switching diode blocks reverse current during gate drive transitions while passing forward pulses. Use Value: 5 pF CT minimizes phase shift in 100–500 kHz feedback loops, preserving loop stability margins. | Use Scenario: Directional overvoltage protection on VBUS and CC lines in reversible USB-C connectors. IC Role / Device Role / Timing Role: Dual-anode structure allows independent clamping of both VBUS and CC pins to common GND or VCONN rail. Use Value: 200 mA IF(AV) supports sustained fault current handling during hot-plug insertion events per USB PD 3.1 spec. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-voltage dual switching diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BAS21DWQ-7 | Same SOT26 package, identical VR(RRM) and trr, but uses wafer-level chip-scale packaging with lower RθJA (350 °C/W) | Better suited for thermally dense modules where board space is constrained but thermal budget is tighter | Select when junction temperature rise must stay below 25 °C at 200 mA in 10 mm² footprint |
| MMBD2103-7-F | Lower VR(RRM) (200 V), same trr, higher VF (1.3 V @ 200 mA), SOT23-3 package with single diode | Requires two devices for dual functionality; not AEC-Q101 qualified; limited to non-automotive industrial use | Choose only for cost-sensitive, non-automotive designs where 200 V rating suffices and dual-element integration is optional |
Compared with BAS21DWQ-7, the BAS21TMQ-13 offers broader automotive qualification and proven long-term reliability in under-hood environments, while MMDB2103-7-F trades integration and qualification for lower unit cost in benign ambient conditions.
Availability
BAS21TMQ-13 is available at Aetrix Electronics and suitable for automotive engine control units, industrial programmable logic controller input stages, and isolated DC-DC converter feedback networks requiring stable component supply across extended product lifecycles.
Supply support for BAS21TMQ-13 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, specializing in high-reliability components for automotive, industrial, and computing markets since 1960.
The BAS21TMQ series belongs to Diodes' AEC-Q101-qualified high-voltage switching diode product line, engineered specifically for robust transient suppression and signal routing in harsh automotive environments.
FAQ
Is BAS21TMQ-13 pin-compatible with BAS21DM-13?
No. BAS21TMQ-13 uses SOT26 with six terminals and a common-cathode dual-diode configuration, while BAS21DM-13 is a SOT363 package with three terminals and a dual-anode arrangement. Their pinouts, internal topology, and thermal pad structures differ fundamentally-direct replacement requires PCB redesign.
What is the maximum allowable junction temperature during continuous operation?
The absolute maximum junction temperature is +150 °C. At 25 °C ambient and 200 mA forward current, junction temperature rise is approximately 25 °C using the specified FR-4 layout. Derating begins above 25 °C ambient per the 300 mW power curve, reaching zero dissipation at 100 °C ambient.
Does BAS21TMQ-13 support bidirectional ESD protection per IEC 61000-4-2?
No. As a unidirectional silicon switching diode, it conducts only from anode to cathode. For bidirectional ESD protection, it must be paired with a second diode in anti-parallel configuration or replaced with a dedicated TVS array such as D3V3M1U2UP-7.
Can BAS21TMQ-13 replace BAT54S in 24 V industrial sensor interfaces?
Only with design validation. While both are dual common-cathode diodes, BAS21TMQ-13 has higher VR(RRM) (250 V vs. 30 V) and slower trr (50 ns vs. 5 ns), making it unsuitable for high-speed signal steering but superior for high-voltage transient clamping in 24 V sensor power rails.
BAS21TMQ-13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- SOT-23-6
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Diode Configuration:
- 3 Independent
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 250 V
- Current - Average Rectified (Io) (per Diode):
- 250mA
- Voltage - Forward (Vf) (Max) @ If:
- 1.25 V @ 200 mA
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 50 ns
- Current - Reverse Leakage @ Vr:
- 100 nA @ 200 V
- Operating Temperature - Junction:
- -65°C ~ 150°C
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-26
BAS21TMQ-13 FAQ
1.How can I place an order for BAS21TMQ-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for BAS21TMQ-13 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 BAS21TMQ-13 reliable?
The price and inventory of BAS21TMQ-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BAS21TMQ-13 is usually 5 days.
3.What payment methods are accepted for BAS21TMQ-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BAS21TMQ-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BAS21TMQ-13?
BAS21TMQ-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BAS21TMQ-13 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 BAS21TMQ-13?
For technical support, including BAS21TMQ-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BAS21TMQ-13 requirements.
6.How does Aetrix verify that BAS21TMQ-13 is sourced from the original manufacturer or authorized distributors?
All BAS21TMQ-13 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 BAS21TMQ-13 meets industry standards.
7.What is the process for return or replacement of BAS21TMQ-13?
All BAS21TMQ-13 units undergo pre-shipment inspection (PSI). If there is an issue with BAS21TMQ-13, 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 BAS21TMQ-13 part is unused and in its original packaging.
Return procedure for BAS21TMQ-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BAS21TMQ-13 Tags
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