B240AF-13 Equivalent & Substitute Parts

Part Overview

The B240AF-13 is a Schottky rectifier diode manufactured by Diodes Incorporated, rated for 40 V DC reverse voltage and 2 A average rectified current in a surface mount SMAF package. This component is classified as Active product status and is ROHS3 compliant. Substitute parts are identified when equivalent electrical performance and mechanical compatibility are required for design flexibility, supply chain alternatives, or manufacturing process optimization.

Key Parameters

Parameter	Value
Voltage - DC Reverse (Vr) (Max)	40 V
Current - Average Rectified (Io)	2 A
Voltage - Forward (Vf) (Max) @ If	500 mV @ 2 A
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)
Package / Case	DO-221AC, SMA Flat Leads
Mounting Type	Surface Mount
Operating Temperature - Junction	-55°C ~ 150°C
Technology	Schottky

Substitute Part Grouping Explanation

Substitute parts for the B240AF-13 are qualified based on the following electrical and mechanical parameters:

Critical Matching Parameters:

Voltage - DC Reverse (Vr) (Max): 40 V
Current - Average Rectified (Io): 2 A
Voltage - Forward (Vf) (Max) @ If: 500 mV @ 2 A
Speed: Fast Recovery ≤ 500ns, > 200mA (Io)
Package / Case: DO-221AC, SMA Flat Leads
Mounting Type: Surface Mount
Operating Temperature - Junction: -55°C ~ 150°C
Technology: Schottky

The substitute parts SB24AFC_R1_00001 and SB24AFC-AU_R1_000A1, both manufactured by Panjit International Inc., meet all critical electrical specifications and mechanical requirements. Both parts are packaged in DO-221AC with SMA flat leads, support surface mount assembly, and operate across the same temperature range. Variations in reverse leakage current (100 µA versus 200 µA) and capacitance (98 pF versus 93 pF) remain within acceptable tolerance for Schottky diode applications at these ratings.

Parameter Comparison

Parameter	B240AF-13 (Diodes Inc.)	SB24AFC_R1_00001 (Panjit)	SB24AFC-AU_R1_000A1 (Panjit)
Voltage - DC Reverse (Vr) (Max)	40 V	40 V	40 V
Current - Average Rectified (Io)	2 A	2 A	2 A
Voltage - Forward (Vf) (Max) @ If	500 mV @ 2 A	500 mV @ 2 A	500 mV @ 2 A
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)
Current - Reverse Leakage @ Vr	200 µA @ 40 V	100 µA @ 40 V	100 µA @ 40 V
Capacitance @ Vr, F	93 pF @ 4V, 1MHz	98 pF @ 4V, 1MHz	98 pF @ 4V, 1MHz
Package / Case	DO-221AC, SMA Flat Leads	DO-221AC, SMA Flat Leads	DO-221AC, SMA Flat Leads
Mounting Type	Surface Mount	Surface Mount	Surface Mount
Operating Temperature - Junction	-55°C ~ 150°C	-55°C ~ 150°C	-55°C ~ 150°C
Technology	Schottky	Schottky	Schottky
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected

Engineering Selection Recommendations

Both substitute parts are qualified as parametric equivalents to the B240AF-13 based on electrical and mechanical compatibility. All three parts maintain Active product status and ROHS3 compliance.

SB24AFC-AU_R1_000A1 carries AEC-Q101 automotive qualification, which provides additional assurance for applications requiring automotive-grade component reliability. This part is supplied in Tape & Reel (TR) packaging.

SB24AFC_R1_00001 is supplied in Tape & Reel (TR) packaging without automotive qualification designation. This part is suitable for general industrial and commercial applications.

The original B240AF-13 is supplied in Cut Tape (CT) & Digi-Reel® packaging. Selection between substitute parts should account for packaging format requirements and any automotive qualification mandates specific to the end application.

Frequently Asked Questions (FAQ)

Q: Can SB24AFC_R1_00001 or SB24AFC-AU_R1_000A1 be used as direct replacements for B240AF-13?

A: Both Panjit parts are parametric equivalents. They share identical voltage ratings (40 V), current ratings (2 A), forward voltage characteristics (500 mV @ 2 A), recovery speed, package type (DO-221AC, SMA Flat Leads), and operating temperature range (-55°C ~ 150°C). Direct substitution is supported from an electrical and mechanical standpoint.

Q: What is the difference between the two Panjit substitute parts?

A: SB24AFC-AU_R1_000A1 includes AEC-Q101 automotive qualification and is designated as Automotive grade. SB24AFC_R1_00001 does not carry automotive qualification. Both parts are otherwise electrically and mechanically identical. Selection depends on whether automotive qualification is required for the application.

Q: Are there packaging differences between the main part and substitutes?

A: The B240AF-13 is supplied in Cut Tape (CT) & Digi-Reel® format. Both substitute parts are supplied in Tape & Reel (TR) format. The physical component package (DO-221AC, SMA Flat Leads) is identical across all three parts. Packaging format differences affect handling and assembly processes but not component performance or PCB compatibility.

Q: Do the substitute parts have different reverse leakage characteristics?

A: The B240AF-13 specifies 200 µA reverse leakage at 40 V. Both Panjit substitutes specify 100 µA reverse leakage at 40 V. Lower reverse leakage in the substitute parts represents improved performance and does not create compatibility issues in circuit design.

Q: Are all three parts compliant with environmental and regulatory standards?

A: All three parts are ROHS3 compliant, REACH unaffected, and carry MSL 1 (Unlimited) moisture sensitivity rating. All parts are classified as Active product status. Compliance is equivalent across all three options.

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