BAS20Q-7-F Equivalent & Substitute Parts

Part Overview

The BAS20Q-7-F is a general-purpose rectifier diode manufactured by Diodes Incorporated, rated for 150 V DC reverse voltage and 200 mA average rectified current in a surface mount SOT-23-3 package. This part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement continuity. Substitute parts are selected based on matching or exceeding electrical performance parameters while maintaining mechanical compatibility with the original package specification.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	150	V
Current - Average Rectified (Io)	200	mA
Voltage - Forward (Vf) (Max) @ If	1.25 @ 200 mA	V
Reverse Recovery Time (trr)	50	ns
Current - Reverse Leakage @ Vr	100 nA @ 150 V	nA
Capacitance @ Vr, F	5 @ 0V, 1MHz	pF
Package / Case	TO-236-3, SC-59, SOT-23-3	—
Mounting Type	Surface Mount	—
Operating Temperature - Junction	-65 to 150	°C
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitute parts for the BAS20Q-7-F are classified into two categories based on electrical parameter compatibility:

Direct Upgrade (Higher Voltage Rating): The BAS21Q-7-F provides a higher DC reverse voltage rating (200 V versus 150 V) while maintaining identical current, forward voltage, and switching characteristics. This part is a direct functional upgrade suitable for applications where the original 150 V specification can accommodate a higher-rated component.

Parametric Equivalents (Identical Electrical Specifications): The BAS20Q-13-F, BAS20 RFG, BAS20-TP, and BAS20HE3-TP all match the BAS20Q-7-F across all critical electrical parameters: 150 V reverse voltage, 200 mA current rating, 1.25 V forward voltage, 50 ns recovery time, and identical junction temperature range. These parts differ only in manufacturer, packaging format (Tape & Reel versus Cut Tape), and in some cases, automotive qualification status.

Key Parameters Determining Substitution:

Voltage - DC Reverse (Vr) (Max): Must equal or exceed 150 V
Current - Average Rectified (Io): Must equal or exceed 200 mA
Voltage - Forward (Vf) (Max) @ If: Must equal or be lower than 1.25 V @ 200 mA
Package / Case: Must be TO-236-3, SC-59, or SOT-23-3
Mounting Type: Must be Surface Mount
Operating Temperature - Junction: Must span -65°C to 150°C minimum

Parameter Comparison

Part Number	Manufacturer	Vr (Max) [V]	Io [mA]	Vf (Max) @ 200mA [V]	trr [ns]	Ir @ Vr [nA]	Package	Product Status	Automotive Grade
BAS20Q-7-F	Diodes Incorporated	150	200	1.25	50	100 @ 150V	SOT-23-3	Obsolete	—
BAS21Q-7-F	Diodes Incorporated	200	200	1.25	50	100 @ 200V	SOT-23-3	Active	—
BAS20Q-13-F	Diodes Incorporated	150	200	1.25	50	100 @ 150V	SOT-23-3	Active	AEC-Q101
BAS20 RFG	Taiwan Semiconductor Corporation	150	200	1.25	50	100 @ 150V	SOT-23-3	Active	—
BAS20-TP	Micro Commercial Co	150	200	1.25	50	100 @ 150V	SOT-23-3	Active	—
BAS20HE3-TP	Micro Commercial Co	150	200	1.25	50	100 @ 150V	SOT-23-3	Active	AEC-Q101

Engineering Selection Recommendations

For Direct Replacement (Obsolete Part Mitigation): The BAS20Q-13-F is the primary recommended substitute. It is manufactured by Diodes Incorporated (original manufacturer), maintains identical electrical specifications, carries Active product status, and includes AEC-Q101 automotive qualification. This part provides the highest assurance of form-fit-function compatibility.

For Active Inventory and Cost Optimization: The BAS20-TP (Micro Commercial Co) and BAS20 RFG (Taiwan Semiconductor Corporation) are parametrically equivalent alternatives with significantly higher inventory availability. Both are Active products with ROHS3 compliance and unlimited moisture sensitivity level (MSL 1). Selection between these should be based on packaging format requirements and supplier availability.

For Automotive Applications: If the application requires automotive-grade qualification, select either BAS20Q-13-F or BAS20HE3-TP, both of which carry AEC-Q101 certification. The BAS20Q-13-F maintains the original manufacturer (Diodes Incorporated), while BAS20HE3-TP is available from Micro Commercial Co.

For Higher Voltage Margin: The BAS21Q-7-F provides a 200 V reverse voltage rating compared to the original 150 V specification. This part is suitable for applications where additional voltage headroom is beneficial and the circuit design can accommodate the higher rating without adverse effects. It maintains all other electrical characteristics and is manufactured by Diodes Incorporated with Active product status.

Frequently Asked Questions (FAQ)

Q: Can the BAS21Q-7-F be used as a direct replacement for the BAS20Q-7-F?

A: Yes. The BAS21Q-7-F is electrically compatible and provides a higher reverse voltage rating (200 V versus 150 V). All other parameters—current, forward voltage, recovery time, and package—are identical. This is a functional upgrade suitable for any application designed for the BAS20Q-7-F.

Q: What is the difference between the BAS20Q-13-F and BAS20-TP?

A: Both parts are parametrically equivalent with identical electrical specifications and SOT-23-3 packaging. The primary differences are manufacturer (Diodes Incorporated versus Micro Commercial Co), packaging format (Tape & Reel versus Tape & Reel), and the BAS20Q-13-F includes AEC-Q101 automotive qualification. Selection depends on supplier availability and whether automotive certification is required.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts carry ROHS3 compliance status, matching the original BAS20Q-7-F specification.

Q: What does the product status "Obsolete" mean for the BAS20Q-7-F?

A: Obsolete status indicates that Diodes Incorporated has discontinued manufacturing and will not produce additional units. Existing inventory may be available from distributors, but long-term procurement cannot rely on this part. Substitute parts with Active status ensure ongoing availability for future production runs.

Q: Can I use BAS20HE3-TP in a non-automotive application?

A: Yes. The BAS20HE3-TP meets all electrical and mechanical requirements for general-purpose applications. The AEC-Q101 automotive qualification is an additional certification that does not restrict use in non-automotive designs; it only confirms the part meets automotive reliability standards.

Q: What is the significance of the MSL (Moisture Sensitivity Level) rating?

A: MSL 1 (Unlimited) indicates that the component has no moisture sensitivity restrictions and does not require special handling, storage, or baking procedures prior to soldering. All substitute parts listed carry MSL 1 rating.

Q: Are there any electrical performance differences between the BAS20 RFG and BAS20-TP?

A: No. Both parts are parametrically identical across all electrical specifications: 150 V reverse voltage, 200 mA current, 1.25 V forward voltage, 50 ns recovery time, and identical junction temperature range. The differences are manufacturer (Taiwan Semiconductor Corporation versus Micro Commercial Co) and inventory availability.

Q: Which substitute part should I select for a new design?

A: For new designs, select from parts with Active product status. The BAS20Q-13-F is recommended if Diodes Incorporated is the preferred manufacturer or if automotive qualification is required. The BAS20-TP or BAS20 RFG are suitable alternatives if cost or inventory availability is a primary consideration. All three are electrically and mechanically compatible with the original BAS20Q-7-F specification.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message