SS24T3G Equivalent & Substitute Parts

Part Overview

The SS24T3G is an onsemi Schottky rectifier diode 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 Active product status and is RoHS3 compliant. Equivalent and substitute parts are identified when design requirements necessitate alternative sourcing due to inventory constraints, packaging format preferences, or manufacturer selection criteria while maintaining electrical and mechanical compatibility.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	40	V
Current - Average Rectified (Io)	2	A
Voltage - Forward (Vf) (Max) @ If	500 mV @ 2 A	mV
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)	ns
Current - Reverse Leakage @ Vr	400	µA @ 40 V
Technology	Schottky	—
Package / Case	DO-214AA, SMB	—
Mounting Type	Surface Mount	—
Operating Temperature - Junction	-55 to 150	°C
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution of the SS24T3G is determined by strict equivalence across the following critical parameters:

Primary Substitution Criteria:

Voltage - DC Reverse (Vr) (Max): 40 V
Current - Average Rectified (Io): 2 A
Voltage - Forward (Vf) (Max) @ If: 500 mV @ 2 A
Technology: Schottky
Package / Case: DO-214AA, SMB (or compatible surface mount package)
Mounting Type: Surface Mount
Speed: Fast Recovery ≤ 500ns, > 200mA (Io)

Substitute parts are grouped into three categories:

Parametric Equivalent: Parts with identical electrical specifications and SMB packaging from the same manufacturer (onsemi). Packaging format differs (Tape & Reel vs. Cut Tape) but electrical performance is identical.

Direct Manufacturer Equivalent: Parts from alternative manufacturers (Vishay, Diodes Incorporated, Comchip Technology, NXP Semiconductors) with matching 40 V / 2 A ratings and SMB or compatible surface mount packages. Minor variations in reverse leakage current and capacitance are within acceptable engineering tolerance for this component category.

Similar Functional Parts: Parts with 40 V reverse voltage rating but differing current ratings (1 A, 3 A) or alternative surface mount packages (SMA, SOD-323, SOD-128). These are suitable only when circuit design permits current rating adjustment or package footprint modification.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Vr (Max) [V]	Io [A]	Vf (Max) @ If [mV]	Reverse Leakage @ Vr [µA]	Package / Case	Packaging Format	Operating Temp [°C]	Product Status
SS24T3G	onsemi	40	2	500 @ 2 A	400 @ 40 V	DO-214AA, SMB	Cut Tape (CT)	-55 to 150	Active
NRVBSS24NT3G	onsemi	40	2	500 @ 2 A	400 @ 40 V	DO-214AA, SMB	Tape & Reel (TR)	-55 to 150	Active
SS24-E3/52T	Vishay General Semiconductor	40	2	500 @ 2 A	400 @ 40 V	DO-214AA, SMB	Cut Tape (CT)	-65 to 125	Active
B240-13-F	Diodes Incorporated	40	2	500 @ 2 A	500 @ 40 V	DO-214AA, SMB	Cut Tape (CT)	-65 to 150	Active
B240A-13-F	Diodes Incorporated	40	2	500 @ 2 A	500 @ 40 V	DO-214AC, SMA	Cut Tape (CT)	-65 to 150	Active
B240Q-13-F	Diodes Incorporated	40	2	500 @ 2 A	500 @ 40 V	DO-214AA, SMB	Tape & Reel (TR)	-65 to 150	Active
CDBB240-G	Comchip Technology	40	2	500 @ 2 A	500 @ 40 V	DO-214AA, SMB	Tape & Reel (TR)	-55 to 125	Active
PMEG4020EP,115	NXP Semiconductors	40	2	490 @ 2 A	100 @ 40 V	SOD-128	—	Max 150	Active
BAT165E6327HTSA1	Infineon Technologies	40	0.75	740 @ 750 mA	50 @ 40 V	SC-76, SOD-323	Cut Tape (CT)	Max 150	Active
CMSH1-40 TR13 PBFREE	Central Semiconductor Corp	40	1	500 @ 1 A	500 @ 40 V	DO-214AC, SMA	Tape & Reel (TR)	-65 to 150	Active
CMSH3-40M TR13 PBFREE	Central Semiconductor Corp	40	3	550 @ 3 A	500 @ 40 V	DO-214AA, SMB	Tape & Reel (TR)	-65 to 150	Active

Engineering Selection Recommendations

Direct Substitutes (Recommended for Pin-Compatible Replacement):

The NRVBSS24NT3G (onsemi) is a parametric equivalent with identical electrical specifications and SMB packaging. The only difference is packaging format (Tape & Reel vs. Cut Tape). This part is suitable for direct substitution when tape format is acceptable for assembly processes.

The SS24-E3/52T (Vishay General Semiconductor) provides direct electrical equivalence with 40 V / 2 A ratings and SMB packaging. Operating temperature range is -65°C to 125°C, which is narrower than the SS24T3G (-55°C to 150°C). This part is suitable when the application temperature range falls within -65°C to 125°C.

Compatible Substitutes (Electrical Equivalence with Package Considerations):

The B240-13-F and B240Q-13-F (Diodes Incorporated) are electrically equivalent with 40 V / 2 A ratings and SMB packaging. Reverse leakage current is 500 µA (compared to 400 µA for SS24T3G), which is within acceptable tolerance for Schottky rectifier applications. B240Q-13-F includes AEC-Q101 automotive qualification. Operating temperature extends to -65°C to 150°C.

The CDBB240-G (Comchip Technology) matches electrical specifications with 40 V / 2 A ratings and SMB packaging. Reverse leakage is 500 µA. Operating temperature is -55°C to 125°C.

Alternative Package Substitutes (Functional Equivalence with Footprint Change):

The B240A-13-F (Diodes Incorporated) provides 40 V / 2 A ratings in SMA package (DO-214AC) instead of SMB. This requires PCB layout modification and is suitable only when design permits package footprint change.

The PMEG4020EP,115 (NXP Semiconductors) offers 40 V / 2 A ratings in SOD-128 package. Forward voltage is 490 mV (lower than 500 mV), and reverse leakage is 100 µA (lower than 400 µA). This part is suitable when SOD-128 footprint is acceptable and lower leakage current is beneficial.

Current-Rated Alternatives (Functional Substitutes for Adjusted Circuit Design):

The CMSH1-40 TR13 PBFREE (Central Semiconductor Corp) is rated for 40 V / 1 A in SMA package. This part is suitable only when circuit design permits 1 A current rating and SMA package footprint.

The CMSH3-40M TR13 PBFREE (Central Semiconductor Corp) is rated for 40 V / 3 A in SMB package. Forward voltage is 550 mV @ 3 A. This part is suitable when higher current capacity is required and forward voltage increase is acceptable.

The BAT165E6327HTSA1 (Infineon Technologies) is rated for 40 V / 750 mA in SOD-323 package. This part is suitable only when circuit design permits 750 mA current rating and SOD-323 footprint.

Compliance and Qualification:

All listed parts are RoHS3 compliant and carry MSL 1 (Unlimited) moisture sensitivity rating. The NRVBSS24NT3G and B240Q-13-F include AEC-Q101 automotive qualification, suitable for automotive applications requiring this certification.

Frequently Asked Questions (FAQ)

Q: Can I substitute SS24T3G with NRVBSS24NT3G?

A: Yes. Both parts are onsemi Schottky diodes with identical electrical specifications: 40 V reverse voltage, 2 A average rectified current, 500 mV forward voltage @ 2 A, and SMB package. The only difference is packaging format (Tape & Reel vs. Cut Tape). Substitution is direct when tape format is compatible with assembly equipment.

Q: What is the difference between SS24T3G and SS24-E3/52T?

A: Both are 40 V / 2 A Schottky diodes in SMB package with identical electrical specifications. The SS24-E3/52T is manufactured by Vishay instead of onsemi. Operating temperature range differs: SS24T3G operates -55°C to 150°C, while SS24-E3/52T operates -65°C to 125°C. Substitution is suitable when the application temperature range falls within -65°C to 125°C.

Q: Can I use B240-13-F instead of SS24T3G?

A: Yes, with minor consideration. The B240-13-F (Diodes Incorporated) has identical 40 V / 2 A ratings and SMB package. Reverse leakage current is 500 µA compared to 400 µA for SS24T3G. This difference is within acceptable tolerance for Schottky rectifier applications and does not affect circuit functionality in typical power supply and protection applications.

Q: What is the difference between B240-13-F and B240A-13-F?

A: Both are Diodes Incorporated 40 V / 2 A Schottky diodes with identical electrical specifications. The primary difference is package: B240-13-F uses SMB (DO-214AA), while B240A-13-F uses SMA (DO-214AC). These packages have different footprints and are not interchangeable without PCB layout modification.

Q: Is PMEG4020EP,115 a suitable substitute for SS24T3G?

A: PMEG4020EP,115 (NXP Semiconductors) is electrically equivalent with 40 V / 2 A ratings. However, it uses SOD-128 package instead of SMB, requiring PCB footprint change. Forward voltage is 490 mV (lower than 500 mV), and reverse leakage is 100 µA (lower than 400 µA). Substitution is suitable only when SOD-128 package is acceptable for the design.

Q: Can I use CMSH3-40M TR13 PBFREE as a substitute?

A: CMSH3-40M TR13 PBFREE (Central Semiconductor Corp) is rated for 40 V / 3 A, providing higher current capacity than the 2 A SS24T3G. This part is suitable only when circuit design permits 3 A current rating. Forward voltage is 550 mV @ 3 A (higher than 500 mV @ 2 A). Package is SMB, compatible with SS24T3G footprint.

Q: What does AEC-Q101 qualification mean?

A: AEC-Q101 is an automotive qualification standard for discrete semiconductors. Parts with this certification (such as NRVBSS24NT3G and B240Q-13-F) have undergone additional testing and reliability screening required for automotive applications. Use AEC-Q101 qualified parts when the application requires automotive-grade components.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts are RoHS3 compliant and carry MSL 1 (Unlimited) moisture sensitivity rating, matching the compliance profile of the SS24T3G.

Q: What is the difference between Cut Tape and Tape & Reel packaging?

A: Cut Tape (CT) packaging provides individual component strips suitable for manual handling and small-volume assembly. Tape & Reel (TR) packaging provides continuous tape on reels suitable for automated pick-and-place assembly equipment. Electrical specifications are identical; packaging format selection depends on assembly process requirements.

Q: Can I substitute SS24T3G with BAT165E6327HTSA1?

A: BAT165E6327HTSA1 (Infineon Technologies) is rated for 40 V / 750 mA, which is lower than the 2 A rating of SS24T3G. This part is suitable only when circuit design permits 750 mA current rating. Package is SOD-323, requiring PCB footprint modification. Substitution is not recommended for direct replacement in 2 A applications.

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