BAS20W-7 Equivalent & Substitute Parts

Part Overview

The BAS20W-7 is a general-purpose rectifier diode manufactured by Diodes Incorporated, classified within the Diodes, Rectifiers category. This component operates at 150V DC reverse voltage with a 200mA average rectified current rating and is packaged in the SOT323 surface mount configuration. The part maintains Active product status and is RoHS3 compliant with unlimited moisture sensitivity level (MSL 1). Alternative part numbers are necessary when specific packaging formats, supplier availability, or inventory requirements differ from the standard Cut Tape (CT) & Digi-Reel® configuration.

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
Operating Temperature - Junction	-65 to 150	°C
Package / Case	SC-70, SOT-323
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the BAS20W-7 with equivalent part numbers is determined by electrical parameter equivalence and mechanical compatibility. The primary substitution criteria are:

Electrical Parameters:

Voltage - DC Reverse (Vr) (Max): 150V
Current - Average Rectified (Io): 200mA
Voltage - Forward (Vf) (Max) @ If: 1.25V @ 200mA
Reverse Recovery Time (trr): 50ns
Current - Reverse Leakage @ Vr: 100nA @ 150V
Capacitance @ Vr, F: 5pF @ 0V, 1MHz

Mechanical Parameters:

Package / Case: SC-70, SOT-323
Mounting Type: Surface Mount
Supplier Device Package: SOT-323

Compliance & Environmental:

RoHS Status: ROHS3 Compliant
Moisture Sensitivity Level (MSL): 1 (Unlimited)
Operating Temperature - Junction: -65°C to 150°C

Parts meeting all these criteria are electrically and mechanically interchangeable. Packaging format differences (Cut Tape vs. Tape & Reel) do not affect functional equivalence.

Parameter Comparison

Parameter	BAS20W-7	BAS20W-7-F	Unit
Manufacturer	Diodes Incorporated	Diodes Incorporated
Category	Diodes, Rectifiers	Diodes, Rectifiers
Description	DIODE GEN PURP 150V 200MA SOT323	DIODE GEN PURP 150V 200MA SOT323
Voltage - DC Reverse (Vr) (Max)	150	150	V
Current - Average Rectified (Io)	200	200	mA
Voltage - Forward (Vf) (Max) @ If	1.25 @ 200 mA	1.25 @ 200 mA	V
Reverse Recovery Time (trr)	50	50	ns
Current - Reverse Leakage @ Vr	100 nA @ 150 V	100 nA @ 150 V	nA
Capacitance @ Vr, F	5 @ 0V, 1MHz	5 @ 0V, 1MHz	pF
Operating Temperature - Junction	-65 to 150	-65 to 150	°C
Package / Case	SC-70, SOT-323	SC-70, SOT-323
Mounting Type	Surface Mount	Surface Mount
RoHS Status	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)
Product Status	Active	Active

Engineering Selection Recommendations

The BAS20W-7 and BAS20W-7-F are direct electrical and mechanical equivalents. Both parts are manufactured by Diodes Incorporated, maintain Active product status, and carry identical electrical specifications across all rated parameters. Both components are RoHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating, ensuring compatibility with standard surface mount assembly processes.

The primary distinction between these parts is packaging format: BAS20W-7 is supplied in Cut Tape (CT) & Digi-Reel® format, while BAS20W-7-F is supplied in Tape & Reel (TR) format. This difference affects procurement and handling procedures but does not impact electrical performance or functional application.

Selection between these equivalent parts should be based on inventory availability, packaging requirements for manufacturing processes, and supplier logistics. Both parts are suitable for direct substitution in applications requiring a 150V, 200mA general-purpose rectifier diode in SOT-323 surface mount packaging.

Frequently Asked Questions (FAQ)

Q: Are BAS20W-7 and BAS20W-7-F electrically identical?

A: Yes. Both parts share identical electrical specifications including 150V DC reverse voltage rating, 200mA average rectified current, 1.25V forward voltage drop at 200mA, 50ns reverse recovery time, and all other rated parameters. They are direct electrical equivalents.

Q: What is the difference between Cut Tape (CT) & Digi-Reel® and Tape & Reel (TR) packaging?

A: Cut Tape (CT) & Digi-Reel® and Tape & Reel (TR) are different supply formats for the same component. Cut Tape format provides components on tape that can be cut to length, while Tape & Reel format supplies components on continuous tape wound on a reel. Both formats contain identical parts; the difference is in packaging and handling for manufacturing processes.

Q: Can BAS20W-7-F be used as a direct replacement for BAS20W-7 in existing designs?

A: Yes. BAS20W-7-F is a direct functional substitute for BAS20W-7. Both parts are housed in the same SOT-323 package, have identical pin configurations, and meet the same electrical specifications. No circuit modifications are required.

Q: Are both parts RoHS compliant?

A: Yes. Both BAS20W-7 and BAS20W-7-F are RoHS3 compliant and carry MSL 1 (Unlimited) moisture sensitivity level, meeting standard environmental and regulatory requirements for surface mount assembly.

Q: What is the operating temperature range for these diodes?

A: Both parts operate across a junction temperature range of -65°C to 150°C, suitable for standard industrial and commercial applications.

Q: Are there any differences in reverse leakage current between these parts?

A: No. Both parts specify identical reverse leakage current of 100nA at 150V DC reverse voltage.

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