BAS21JF Equivalent & Substitute Parts

Part Overview

The BAS21JF is an active general-purpose rectifier diode manufactured by Nexperia USA Inc., rated for 300 V DC reverse voltage and 250 mA average rectified current in a surface mount SOD-323F package. This fast recovery diode is designed for automotive-grade applications and carries AEC-Q101 qualification. Substitute parts are identified when equivalent electrical performance, mechanical compatibility, and compliance certifications are maintained across alternative packaging formats or supplier configurations.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	300	V
Current - Average Rectified (Io)	250	mA
Voltage - Forward (Vf) (Max) @ If	1.1 @ 100 mA	V
Reverse Recovery Time (trr)	50	ns
Current - Reverse Leakage @ Vr	100	nA @ 250 V
Capacitance @ Vr, F	2	pF @ 0V, 1MHz
Operating Temperature - Junction (Max)	150	°C
Package / Case	SC-90, SOD-323F	—
Mounting Type	Surface Mount	—
Grade	Automotive	—

Substitute Part Grouping Explanation

Substitution of the BAS21JF is determined by equivalence across the following critical parameters:

Voltage - DC Reverse (Vr) (Max): 300 V
Current - Average Rectified (Io): 250 mA
Voltage - Forward (Vf) (Max) @ If: 1.1 V @ 100 mA
Reverse Recovery Time (trr): 50 ns
Package / Case: SC-90, SOD-323F
Mounting Type: Surface Mount
Operating Temperature - Junction (Max): 150°C
Automotive Grade qualification

The substitute part BAS21J,115 maintains identical electrical ratings and mechanical compatibility. Differences in packaging format (Cut Tape & Digi-Reel® versus Tape & Reel) and reverse leakage current specification (150 nA versus 100 nA at 250 V) do not preclude functional substitution when circuit design tolerances accommodate these variations.

Parameter Comparison

Parameter	BAS21JF	BAS21J,115	Unit
Manufacturer	Nexperia USA Inc.	Nexperia USA Inc.	—
Category	Diodes, Rectifiers	Diodes, Rectifiers	—
Product Status	Active	Active	—
Voltage - DC Reverse (Vr) (Max)	300	300	V
Current - Average Rectified (Io)	250	250	mA
Voltage - Forward (Vf) (Max) @ If	1.1 @ 100 mA	1.1 @ 100 mA	V
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)	—
Reverse Recovery Time (trr)	50	50	ns
Current - Reverse Leakage @ Vr	100 @ 250 V	150 @ 250 V	nA
Capacitance @ Vr, F	2 @ 0V, 1MHz	2 @ 0V, 1MHz	pF
Operating Temperature - Junction (Max)	150	150	°C
Package / Case	SC-90, SOD-323F	SC-90, SOD-323F	—
Mounting Type	Surface Mount	Surface Mount	—
Grade	Automotive	Automotive	—
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	—
REACH Status	REACH Unaffected	REACH Unaffected	—

Engineering Selection Recommendations

Both BAS21JF and BAS21J,115 are active products from Nexperia USA Inc. with identical electrical specifications and automotive-grade qualification. Selection between these parts is determined by supply chain requirements and packaging format availability.

The BAS21JF is supplied in Tape & Reel (TR) format, suitable for high-volume automated assembly operations. The BAS21J,115 is supplied in Cut Tape (CT) & Digi-Reel® format, appropriate for lower-volume applications or mixed-component procurement scenarios.

Both parts maintain ROHS3 compliance, unlimited moisture sensitivity rating (MSL 1), and REACH unaffected status. The reverse leakage current specification difference (100 nA versus 150 nA at 250 V) falls within acceptable tolerances for general-purpose rectification applications and does not constitute a functional limitation.

Qualification status differs between AEC-Q101 (BAS21JF) and AEC-Q100 (BAS21J,115). Both certifications are valid for automotive applications; selection should align with specific automotive supply chain requirements.

Frequently Asked Questions (FAQ)

Q: Can BAS21J,115 replace BAS21JF in production assemblies?

A: Yes. Both parts share identical electrical ratings (300 V, 250 mA, 50 ns recovery time), the same SOD-323F package, and automotive-grade qualification. Packaging format differs (Cut Tape & Digi-Reel® versus Tape & Reel), which affects handling and assembly logistics but not electrical performance.

Q: What is the significance of the reverse leakage current difference (100 nA versus 150 nA)?

A: The reverse leakage current specification is measured at 250 V. The 50 nA difference represents a 50% increase in the substitute part but remains within acceptable limits for general-purpose rectifier applications. Circuit design should account for this specification when leakage current is a critical parameter.

Q: Are both parts suitable for automotive applications?

A: Yes. Both BAS21JF and BAS21J,115 carry automotive-grade designation. BAS21JF holds AEC-Q101 qualification, while BAS21J,115 holds AEC-Q100 qualification. Specific automotive supply chain requirements may dictate which qualification is required.

Q: What packaging considerations apply to these parts?

A: BAS21JF is supplied in Tape & Reel format for high-volume pick-and-place assembly. BAS21J,115 is supplied in Cut Tape & Digi-Reel® format, suitable for lower-volume or mixed-component procurement. Both use the same SOD-323F surface mount package with identical PCB footprint and reflow soldering requirements.

Q: Do both parts comply with environmental regulations?

A: Yes. Both BAS21JF and BAS21J,115 are ROHS3 compliant, REACH unaffected, and carry MSL 1 (unlimited) moisture sensitivity rating. No special storage or handling precautions beyond standard component practices are required.

Q: Can these parts be used interchangeably in the same circuit design?

A: Yes. Electrical performance is equivalent across all specified parameters. PCB layout, assembly process, and supply chain logistics are the primary considerations for part selection.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message