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Diodes Incorporated BAW101Q-7
- Part No.:
- BAW101Q-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Diode Arrays
- Package:
- -
- Datasheet:
-
BAW101Q-7.pdf
- Description:
- DIODE SWITCHING HIGH VOLTAGE
- Quantity:
- Payment:
- Shipping:
Inventory:2,000
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Product details
Overview
BAW101Q-7 from Diodes Incorporated is a dual surface-mount switching diode in SOT143 package, featuring two electrically isolated diode elements with 300 V repetitive peak reverse voltage (VRRM), 250 mA forward current (IF), and 50 ns reverse recovery time (tRR), used in automotive signal routing and high-voltage DC-DC converter snubbing circuits.
For engineers reviewing the BAW101Q-7 datasheet, BAW101Q-7 pinout, BAW101Q-7 application, or BAW101Q-7 equivalent, key selection criteria include reverse breakdown voltage matching, dual-diode isolation integrity, thermal resistance (312 °C/W), AEC-Q101 qualification status, and SOT143 footprint compatibility in space-constrained automotive modules.
Technical Context
This dual diode integrates two independent PN junctions in a single SOT143 package, enabling compact implementation of bidirectional clamping or series/parallel switching configurations without cross-coupling. Each element supports up to 300 V VRRM, 250 mA IF, and exhibits low leakage (<150 nA at 250 V, 25°C) and fast tRR of 50 ns under defined test conditions (IF = IR = 30 mA, RL = 100 Ω).
The device operates across –65°C to +150°C, with thermal resistance of 312 °C/W (junction-to-ambient on FR-4), and is rated for 400 mW total power dissipation. Its "Green" halogen- and antimony-free construction complies with AEC-Q101 for automotive reliability and PPAP capability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 300 V - Maximum repetitive reverse voltage per diode before avalanche conduction begins; enables use in 24 V and 48 V automotive bus protection. |
| IF | 250 mA - Continuous forward current per diode; supports moderate-speed digital logic interface clamping and low-power snubber loads. |
| tRR | 50 ns - Reverse recovery time; ensures minimal switching loss in <1 MHz DC-DC flyback or boost topologies. |
| CT | 2.0 pF @ 0 V - Total junction capacitance per diode; maintains signal integrity in RF detector and high-frequency clamp applications. |
| RθJA | 312 °C/W - Junction-to-ambient thermal resistance on standard FR-4; defines derating curve for ambient temperatures above 25°C. |
| IR | <150 nA @ 250 V, 25°C - Reverse leakage current; critical for low-power standby circuit integrity and battery-backed systems. |
Pinout & Package
Package: SOT143 - 4-pin surface-mount plastic package with gull-wing leads, 0.008 g mass, UL 94V-0 flammability rating, and moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Anode of Diode 1 | Forward current entry point for first diode; connects to input signal or switch node requiring clamping. |
| Pin 2 | Cathode of Diode 1 | Output/reference node for Diode 1; ties to ground or bias rail in unidirectional clamp configuration. |
| Pin 3 | Anode of Diode 2 | Independent anode for second diode; allows separate signal path routing or series-connected high-voltage blocking. |
| Pin 4 | Cathode of Diode 2 | Isolated cathode node; enables dual-rail protection or differential signal termination without shared return paths. |
Key Features
| Feature | Design Value |
|---|---|
| Dual electrically isolated diodes | Enables independent signal routing or redundancy in safety-critical automotive sensors without crosstalk or shared failure modes. |
| AEC-Q101 qualification | Validated for automotive underhood environments including temperature cycling, humidity, and mechanical shock per industry stress test standards. |
| Low leakage & fast tRR | Supports low-quiescent-current battery monitoring and >500 kHz switching in buck-derived auxiliary supplies. |
| Halogen- and antimony-free "Green" compound | Meets automotive OEM environmental mandates (Br+Cl <1500 ppm, Sb <1000 ppm) without compromising mold compound thermal stability. |
Applications
| Automotive CAN Transceiver Protection | High-Voltage DC-DC Snubber |
|---|---|
Use Scenario: Clamping transient spikes on CAN_H/CAN_L lines during load dump or ESD events in body control modules. IC Role / Device Role: Dual-diode clamping network providing bidirectional overvoltage protection with independent cathode routing to separate reference rails. Use Value: Prevents transceiver latch-up by limiting voltage excursions to ≤300 V while maintaining <2 pF parasitic capacitance for signal integrity up to 1 Mbps. | Use Scenario: Absorbing turn-off energy in 48 V–600 V boost converters for mild-hybrid powertrain subsystems. IC Role / Device Role: Fast-recovery snubber diode pair placed across MOSFET drain-source to suppress voltage overshoot and reduce EMI. Use Value: 50 ns tRR and 300 V VRRM enable efficient energy recycling without oscillation, reducing MOSFET stress and thermal derating requirements. |
| Industrial Sensor Signal Conditioning | Low-Power Battery Backup Circuit |
Use Scenario: Protecting analog front-end inputs of pressure/temperature sensors in engine bay-mounted ECUs against reverse polarity and ESD. IC Role / Device Role: Dual-series diode isolation barrier preventing backfeed from supply rails into sensor outputs during fault conditions. Use Value: Electrically isolated elements ensure no leakage path between sensor ground and system ground, preserving measurement accuracy in noisy 12 V/24 V domains. | Use Scenario: Enabling seamless switchover between main supply and backup coin cell in real-time clock (RTC) modules for infotainment head units. IC Role / Device Role: Low-leakage OR-ing diode pair isolating primary and secondary power sources while minimizing quiescent current draw. Use Value: <150 nA IR at 250 V extends coin cell life beyond 10 years in always-on RTC applications without compromising switchover speed. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual switching diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BAV99W-7-F | VRRM = 70 V (per diode), tRR = 4 ns, CT = 2 pF - lower voltage rating but faster switching. | Suitable for 5 V/12 V logic-level clamping only; not rated for 24 V+ automotive transients. | Select when ultra-fast response is prioritized over high-voltage tolerance in non-AEC-Q101 consumer-grade designs. |
| DMJ101Q-7 | VRRM = 300 V, tRR = 50 ns, but uses SOT363 package - same electrical specs, different footprint and thermal profile. | Requires PCB redesign due to 6-pin layout and higher RθJA (350 °C/W); lacks AEC-Q101 documentation. | Choose only if SOT143 footprint is unavailable and thermal margin permits higher junction temperature rise. |
Compared with BAV99W-7-F and DMJ101Q-7, the BAW101Q-7 uniquely combines AEC-Q101 qualification, 300 V robustness, and SOT143's proven thermal performance in automotive underhood layouts-making it the sole option for production-grade 24 V/48 V transient suppression where reliability and footprint are jointly constrained.
Availability
BAW101Q-7 is available at Aetrix Electronics and suitable for automotive power management, industrial sensor interfaces, and high-reliability DC-DC converter snubbing requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for BAW101Q-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, specializing in high-reliability components for automotive, industrial, and computing markets.
The BAW101Q belongs to Diodes' AEC-Q101-qualified switching diode product line, engineered specifically for automotive signal integrity and transient protection in harsh-environment electronic control units.
FAQ
What is the maximum operating temperature for the BAW101Q-7?
The BAW101Q-7 is rated for continuous operation from –65°C to +150°C, with thermal derating beginning at 25°C ambient per the published power dissipation curve. At 125°C ambient, its usable power drops to approximately 125 mW due to the 312 °C/W RθJA on FR-4 board.
Does the BAW101Q-7 support bidirectional clamping?
Yes - each of the two electrically isolated diodes can be configured independently. By connecting Pin 1 and Pin 4 to signal lines and Pins 2 and 3 to reference rails, the device implements true bidirectional clamping with no shared cathode/anode nodes, preserving channel independence.
Is the BAW101Q-7 pin-compatible with the BAV99 series?
No - the BAW101Q-7 uses SOT143 (4-pin) while BAV99 variants use SOT23-3 or SOT363. Pin count, spacing, and internal connectivity differ: BAW101Q-7 provides two fully isolated diodes, whereas BAV99 offers common-cathode configuration, making direct replacement impossible without PCB revision.
How is AEC-Q101 qualification verified for this part?
Diodes Incorporated subjects the BAW101Q-7 to full AEC-Q101 stress testing, including high-temperature operating life (HTOL), temperature cycling, unbiased highly accelerated stress test (uHAST), and electrostatic discharge (HBM ≥8 kV). Full qualification reports and PPAP documentation are available upon request for automotive program validation.
BAW101Q-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Diode Configuration:
- -
- Technology:
- -
- Voltage - DC Reverse (Vr) (Max):
- -
- Current - Average Rectified (Io) (per Diode):
- -
- Voltage - Forward (Vf) (Max) @ If:
- -
- Speed:
- -
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- -
- Operating Temperature - Junction:
- -
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- -
- Supplier Device Package:
- -
BAW101Q-7 FAQ
1.How can I place an order for BAW101Q-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for BAW101Q-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 BAW101Q-7 reliable?
The price and inventory of BAW101Q-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BAW101Q-7 is usually 5 days.
3.What payment methods are accepted for BAW101Q-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BAW101Q-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BAW101Q-7?
BAW101Q-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BAW101Q-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 BAW101Q-7?
For technical support, including BAW101Q-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BAW101Q-7 requirements.
6.How does Aetrix verify that BAW101Q-7 is sourced from the original manufacturer or authorized distributors?
All BAW101Q-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 BAW101Q-7 meets industry standards.
7.What is the process for return or replacement of BAW101Q-7?
All BAW101Q-7 units undergo pre-shipment inspection (PSI). If there is an issue with BAW101Q-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 BAW101Q-7 part is unused and in its original packaging.
Return procedure for BAW101Q-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BAW101Q-7 Tags
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