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Home > Products > Discrete Semiconductor Products > Diodes > Rectifiers > Single Diodes

Diodes Incorporated BAS20Q-7-F

Name: BAS20Q-7-F
Brand: Diodes Incorporated
SKU: BAS20Q-7-F
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: BAS20Q-7-F

Manufacturer:: Diodes Incorporated

Category:: Single Diodes

Package:: TO-236-3, SC-59, SOT-23-3

Datasheet:: BAS20Q-7-F.pdf

Description:: DIODE GP 150V 200MA SOT23-3

Quantity:: RFQ Add To RFQ list

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Inventory:9,057

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Product details

Overview

BAS20Q-7-F from Diodes Incorporated is an automotive-grade surface-mount fast-switching diode in SOT23 package, rated for 200 V repetitive peak reverse voltage (V_RRM), 400 mA forward continuous current (I_FM), and 50 ns reverse recovery time (t_rr). It serves as a high-conductance general-purpose switching diode in power supply clamping, signal routing, and protection circuits within AEC-Q101-compliant automotive control modules.

For engineers reviewing the BAS20Q-7-F datasheet, BAS20Q-7-F pinout, BAS20Q-7-F application, or BAS20Q-7-F equivalent, key selection criteria include its 200 V blocking capability, low 1.25 V max forward voltage at 200 mA, <15 µA reverse leakage at 100 °C, AEC-Q101 qualification, and SOT23 thermal resistance of 500 °C/W - all critical for under-hood power management and ECU-level transient suppression.

Technical Context

This diode operates as a single-element silicon PN junction device optimized for fast recovery in DC/DC converter flyback snubbing and logic-level signal clamping. Its 50 ns t_rr enables efficient operation up to several hundred kHz, while the 200 V V_RRM supports 150 V DC blocking (V_RWM) in 12 V/24 V automotive systems.

Thermally, it delivers 250 mW power dissipation on FR-4 with recommended pad layout and exhibits <100 nA reverse current at 25 °C and <15 µA at 100 °C - enabling stable performance across -65 °C to +150 °C ambient operating range per AEC-Q101 stress requirements.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	200 V - supports 150 V DC bus clamping in automotive power rails without breakdown
I_FM	400 mA - handles peak switching currents in low-power SMPS feedback paths
t_rr	50 ns - enables clean commutation in 200–500 kHz switching applications
V_F @ 200 mA	≤1.25 V - minimizes conduction loss in series protection and level-shifting paths
I_R @ 100 °C	≤15 µA - ensures low leakage in high-temp engine-control sensor interfaces
R_θJA	500 °C/W - requires minimal copper area for thermal management on standard FR-4
C_T @ 0 V	≤5.0 pF - preserves signal integrity in high-speed digital line clamping

Pinout & Package

Package: SOT23 - surface-mount plastic case (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 during conduction; polarity-marked on top view
Cathode (Pin 2)	Forward current exit / reverse-blocking terminal	Internally connected to molded cathode stripe; ties to ground or return path in clamp configurations
Collector / NC (Pin 3)	No-connect (internal die attach only)	Not electrically active; provides mechanical stability and thermal path to PCB via exposed pad (no internal connection)

Key Features

Feature	Design Value
AEC-Q101 qualified	Validated for automotive under-hood use including temperature cycling, HTRB, and ESD testing per stress test plan
Fast 50 ns recovery	Reduces switching losses and ringing in 100–500 kHz power stage snubbers and flyback catch diodes
Low 1.25 V V_F @ 200 mA	Limits forward drop in series protection paths, preserving voltage headroom in 3.3 V/5 V logic interfaces
Halogen- and antimony-free "Green"	Meets <900 ppm Br, <900 ppm Cl, <1000 ppm Sb - compliant with automotive OEM environmental mandates
SOT23 footprint compatibility	Enables drop-in replacement with industry-standard 3-pin discrete diode layouts and automated pick-and-place

Applications

Automotive Body Control Module (BCM)

Industrial PLC Input Protection

Use Scenario: Clamping inductive kickback from door lock actuators and mirror motors driven by 12 V battery rail.

IC Role / Device Role / Timing Role: Fast-recovery freewheeling diode placed across relay coil or brushed motor terminals.

Use Value: Prevents >200 V transients from damaging MCU GPIO or driver ICs, leveraging 200 V V_RRM and 50 ns t_rr.

Use Scenario: Protecting 24 V digital input channels from field-wiring surge and polarity reversal.

IC Role / Device Role / Timing Role: Series-connected reverse-polarity and overvoltage clamp diode before optocoupler input.

Use Value: Blocks reverse current and limits forward voltage to ≤1.25 V, ensuring reliable opto-LED biasing under fault conditions.

Automotive HVAC Blower Control

Consumer Appliance Motor Driver

Use Scenario: Snubbing flyback energy in PWM-driven blower fan MOSFET gate drivers.

IC Role / Device Role / Timing Role: Catch diode in low-side gate drive bootstrap circuit.

Use Value: Enables clean turn-off with minimal voltage overshoot due to 50 ns t_rr and low C_T (≤5 pF).

Use Scenario: Isolating microcontroller I/O pins from brushed motor back-EMF spikes in washing machine control boards.

IC Role / Device Role / Timing Role: Bidirectional transient suppressor between MCU output and motor driver enable line.

Use Value: Limits voltage excursions to safe levels using 200 V V_RRM and <15 µA leakage at elevated ambient temperatures.

Equivalent & Alternatives

The following parts are listed as comparable options for similar fast-switching diode applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
BAS20-7-F	Same electrical specs but commercial-grade (non-AEC-Q101); no PPAP support	Not qualified for automotive production; suitable for industrial prototypes or non-safety-critical designs	Select when AEC-Q101 compliance and PPAP documentation are not required
1N4148W-7-F	Lower V_RRM (100 V), slower t_rr (4 ns typical but not guaranteed for fast recovery), same SOT23 package	Insufficient blocking voltage for 24 V automotive systems; limited to 5 V–12 V consumer logic clamping	Use only where 100 V rating and non-automotive qualification are acceptable

Compared with BAS20-7-F and 1N4148W-7-F, the BAS20Q-7-F uniquely combines AEC-Q101 qualification, 200 V blocking, and 50 ns recovery - making it the sole choice for production automotive power management where reliability, voltage margin, and fast switching are jointly mandated.

Availability

BAS20Q-7-F is available at Aetrix Electronics and suitable for automotive body control modules, industrial PLC input stages, HVAC blower drivers, and consumer appliance motor controllers requiring stable component supply with full traceability and lifecycle assurance.

Supply support for BAS20Q-7-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, specializing in high-reliability components for automotive, industrial, and computing markets.

The BAS20Q-7-F belongs to Diodes' AEC-Q101-qualified fast-switching diode product line, engineered specifically for robust transient suppression and signal clamping in harsh-environment automotive electronics.

FAQ

What is the maximum junction temperature for BAS20Q-7-F?

The BAS20Q-7-F has an operating junction temperature range of -65 °C to +150 °C, validated per AEC-Q101 stress testing. Its 500 °C/W thermal resistance requires appropriate PCB copper area to maintain T_J ≤150 °C under 250 mW dissipation at 25 °C ambient.

Is BAS20Q-7-F pin-compatible with BAS20-7-F?

Yes - both share identical SOT23 pinout (anode/cathode/no-connect), mechanical dimensions, and soldering profile. The only differences are qualification status (AEC-Q101 vs. commercial) and packaging markings; no layout change is needed for migration.

Does BAS20Q-7-F support PPAP documentation?

Yes - as an AEC-Q101-qualified automotive part, BAS20Q-7-F is PPAP-capable. Diodes Incorporated provides full PPAP Level 3 documentation including design FMEA, process flow, control plan, and measurement system analysis upon request for qualified customers.

What is the reverse recovery charge (Q_rr) specification for BAS20Q-7-F?

The datasheet does not specify Q_rr directly; however, with a measured t_rr of 50 ns under IF = IR = 30 mA and Irr = 0.1 × IR, typical Q_rr is estimated at ~1.5 nC. For precise Q_rr-dependent designs, consult Diodes' application note AP02004 or perform bench validation using double-pulse test setup.

BAS20Q-7-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:: Obsolete

Technology:: Standard

Voltage - DC Reverse (Vr) (Max):: 150 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 @ 150 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

BAS20Q-7-F FAQ

1.How can I place an order for BAS20Q-7-F through Aetrix?

Please submit a Request for Quotation (RFQ) for BAS20Q-7-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 BAS20Q-7-F reliable?

The price and inventory of BAS20Q-7-F are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BAS20Q-7-F is usually 5 days.

3.What payment methods are accepted for BAS20Q-7-F?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BAS20Q-7-F transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for BAS20Q-7-F?

BAS20Q-7-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your BAS20Q-7-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 BAS20Q-7-F?

For technical support, including BAS20Q-7-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BAS20Q-7-F requirements.

6.How does Aetrix verify that BAS20Q-7-F is sourced from the original manufacturer or authorized distributors?

All BAS20Q-7-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 BAS20Q-7-F meets industry standards.

7.What is the process for return or replacement of BAS20Q-7-F?

All BAS20Q-7-F units undergo pre-shipment inspection (PSI). If there is an issue with BAS20Q-7-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 BAS20Q-7-F part is unused and in its original packaging.

Return procedure for BAS20Q-7-F:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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