B240-13-G Equivalent & Substitute Parts

Part Overview

The B240-13-G 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 SMB (DO-214AA) package. This component is classified as obsolete product status. Identification of equivalent and substitute parts is necessary to maintain design continuity and ensure component availability for production and repair applications. Substitute parts must maintain electrical and mechanical compatibility within the specified parameter ranges.

Key Parameters

Parameter	Value	Unit
Technology	Schottky	—
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)	—
Current - Reverse Leakage @ Vr	500 µA @ 40 V	—
Capacitance @ Vr, F	200 pF @ 40V, 1MHz	—
Package / Case	DO-214AA, SMB	—
Operating Temperature - Junction	-65°C ~ 150°C	—
Mounting Type	Surface Mount	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitute parts for the B240-13-G are selected based on strict electrical and mechanical parameter equivalence. The following criteria determine substitution eligibility:

Primary Equivalence Criteria:

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-214AA, SMB
Operating Temperature - Junction: -65°C ~ 150°C
Mounting Type: Surface Mount
RoHS Status: ROHS3 Compliant
Moisture Sensitivity Level (MSL): 1 (Unlimited)

Secondary Compatibility Parameters:

Current - Reverse Leakage @ Vr: 500 µA @ 40 V (or lower)
Capacitance @ Vr, F: 200 pF @ 40V, 1MHz (or lower)

All substitute parts listed maintain these electrical specifications and mechanical compatibility. Variations in reverse leakage current and capacitance within acceptable ranges do not preclude substitution.

Parameter Comparison

Part Number	Manufacturer	Vr (Max)	Io	Vf (Max) @ If	Speed	Ir @ Vr	Package	Product Status	Grade
B240-13-G	Diodes Incorporated	40 V	2 A	500 mV @ 2 A	Fast Recovery ≤ 500ns	500 µA @ 40 V	DO-214AA, SMB	Obsolete	—
B240-13-F	Diodes Incorporated	40 V	2 A	500 mV @ 2 A	Fast Recovery ≤ 500ns	500 µA @ 40 V	DO-214AA, SMB	Active	—
B240Q-13-F	Diodes Incorporated	40 V	2 A	500 mV @ 2 A	Fast Recovery ≤ 500ns	500 µA @ 40 V	DO-214AA, SMB	Active	Automotive
CMSH2-40 TR13 PBFREE	Central Semiconductor Corp	40 V	2 A	500 mV @ 2 A	Fast Recovery ≤ 500ns	500 µA @ 40 V	DO-214AA, SMB	Active	—
SS24HE3_A/H	Vishay General Semiconductor - Diodes Division	40 V	2 A	500 mV @ 2 A	Fast Recovery ≤ 500ns	400 µA @ 40 V	DO-214AA, SMB	Active	Automotive
SS24HE3_A/I	Vishay General Semiconductor - Diodes Division	40 V	2 A	500 mV @ 2 A	Fast Recovery ≤ 500ns	400 µA @ 40 V	DO-214AA, SMB	Active	Automotive
SS24HM3_A/H	Vishay General Semiconductor - Diodes Division	40 V	2 A	500 mV @ 2 A	Fast Recovery ≤ 500ns	400 µA @ 40 V	DO-214AA, SMB	Active	Automotive
SS24HM3_A/I	Vishay General Semiconductor - Diodes Division	40 V	2 A	500 mV @ 2 A	Fast Recovery ≤ 500ns	400 µA @ 40 V	DO-214AA, SMB	Active	Automotive

Engineering Selection Recommendations

Primary Recommendation: B240-13-F

The B240-13-F is the direct equivalent from Diodes Incorporated with active product status. This part maintains identical electrical specifications to the B240-13-G and is available in standard Cut Tape (CT) and Digi-Reel® packaging. Selection of this part ensures continuity with the original manufacturer and design specifications.

Automotive-Grade Alternative: B240Q-13-F

The B240Q-13-F is an automotive-qualified variant (AEC-Q101) from Diodes Incorporated with active product status. This part is suitable for applications requiring automotive-grade components and is supplied in Tape & Reel (TR) packaging.

Cross-Manufacturer Alternatives:

The Vishay General Semiconductor parts (SS24HE3_A/H, SS24HE3_A/I, SS24HM3_A/H, SS24HM3_A/I) are automotive-qualified (AEC-Q101) alternatives with active product status. These parts feature lower reverse leakage current (400 µA @ 40 V compared to 500 µA @ 40 V) and are supplied in Tape & Reel (TR) packaging.

The Central Semiconductor Corp part (CMSH2-40 TR13 PBFREE) is an active alternative with equivalent electrical specifications and is supplied in Tape & Reel (TR) packaging.

All substitute parts are ROHS3 compliant with MSL 1 (Unlimited) rating, matching the original component's environmental compliance profile.

Frequently Asked Questions (FAQ)

Q: Can B240-13-F be used as a direct replacement for B240-13-G?

A: Yes. The B240-13-F is electrically and mechanically equivalent to the B240-13-G. Both parts share identical voltage ratings (40 V), current ratings (2 A), forward voltage characteristics (500 mV @ 2 A), and package specifications (DO-214AA, SMB). The primary difference is product status: B240-13-F is active while B240-13-G is obsolete.

Q: What is the difference between B240-13-F and B240Q-13-F?

A: Both parts are from Diodes Incorporated and maintain identical electrical specifications. The B240Q-13-F includes automotive-grade qualification (AEC-Q101) and is supplied in Tape & Reel (TR) packaging, while B240-13-F is available in Cut Tape (CT) and Digi-Reel® packaging. Selection depends on packaging requirements and automotive qualification necessity.

Q: Are Vishay SS24 series parts compatible with the B240-13-G?

A: Yes. The Vishay SS24HE3_A/H, SS24HE3_A/I, SS24HM3_A/H, and SS24HM3_A/I parts are electrically compatible. All maintain the required 40 V reverse voltage, 2 A current rating, and 500 mV forward voltage specification. These parts feature automotive-grade qualification (AEC-Q101) and lower reverse leakage current (400 µA @ 40 V). All are supplied in Tape & Reel (TR) packaging.

Q: What does the reverse leakage current difference mean for substitution?

A: The B240-13-G specifies 500 µA @ 40 V reverse leakage current. Substitute parts with lower reverse leakage current (such as the Vishay SS24 series at 400 µA @ 40 V) are fully compatible. Lower leakage current represents improved performance characteristics and does not create compatibility issues.

Q: Are all substitute parts RoHS compliant?

A: Yes. All substitute parts listed are ROHS3 compliant and carry MSL 1 (Unlimited) moisture sensitivity rating, matching the original B240-13-G specifications.

Q: What packaging options are available for substitutes?

A: Packaging varies by part number. B240-13-F is available in Cut Tape (CT) and Digi-Reel® formats. B240Q-13-F, CMSH2-40 TR13 PBFREE, and all Vishay SS24 variants are supplied in Tape & Reel (TR) packaging. Selection should be based on production equipment compatibility and procurement requirements.

Q: Can I use automotive-qualified parts in non-automotive applications?

A: Yes. Automotive-qualified parts (B240Q-13-F and Vishay SS24 series) meet or exceed the electrical and reliability specifications of standard-grade parts and are suitable for any application requiring the specified electrical characteristics.

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