SS24S-M3/61T Equivalent & Substitute Parts

Part Overview

The SS24S-M3/61T is a Schottky rectifier diode manufactured by Vishay General Semiconductor - Diodes Division, rated for 40 V DC reverse voltage and 2 A average rectified current in a surface mount DO-214AC (SMA) package. This component is classified as Active product status and is ROHS3 compliant. Equivalent and substitute parts are identified to support design flexibility, supply chain continuity, and packaging format options while maintaining electrical and mechanical compatibility within 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	550	mV @ 2 A
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)	—
Current - Reverse Leakage @ Vr	200	µA @ 40 V
Package / Case	DO-214AC, SMA	—
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

Substitute parts for the SS24S-M3/61T are grouped based on strict electrical and mechanical parameter alignment. The primary substitution criteria are:

Mandatory Matching Parameters:

Voltage - DC Reverse (Vr) (Max): 40 V
Current - Average Rectified (Io): 2 A
Technology: Schottky
Package / Case: DO-214AC, SMA
Mounting Type: Surface Mount
Speed: Fast Recovery ≤ 500ns, > 200mA (Io)

Allowed Parameter Variations:

Voltage - Forward (Vf) (Max) @ If: 500–550 mV @ 2 A
Current - Reverse Leakage @ Vr: 12 µA to 500 µA @ 40 V
Capacitance @ Vr, F: 130–200 pF @ specified voltage and frequency (where specified)
Operating Temperature - Junction: -55°C to 150°C minimum range
Packaging Format: Tape & Reel (TR) or Cut Tape (CT)

Parts that exceed the 2 A current rating (such as SK54A-LTP at 5 A) or deviate from the DO-214AC package footprint (such as CDBM240-G in SOD-123T) are listed as alternatives for applications requiring higher current capacity or different form factors, but are not direct electrical equivalents.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Vr (Max) [V]	Io [A]	Vf (Max) @ If [mV]	Ir @ Vr [µA]	Package	Packaging Format	Temp Range [°C]	Product Status
SS24S-M3/61T	Vishay	40	2	550 @ 2A	200 @ 40V	DO-214AC, SMA	Tape & Reel	-55 to 150	Active
SS24S-E3/5AT	Vishay	40	2	550 @ 2A	200 @ 40V	DO-214AC, SMA	Tape & Reel	-55 to 150	Active
SS24S-E3/61T	Vishay	40	2	550 @ 2A	200 @ 40V	DO-214AC, SMA	Cut Tape	-55 to 150	Active
SS24S-M3/5AT	Vishay	40	2	550 @ 2A	200 @ 40V	DO-214AC, SMA	Tape & Reel	-55 to 150	Active
SS24SHE3_B/H	Vishay	40	2	550 @ 2A	200 @ 40V	DO-214AC, SMA	Tape & Reel	-55 to 150	Active
B240A-13-F	Diodes Incorporated	40	2	500 @ 2A	500 @ 40V	DO-214AC, SMA	Cut Tape & Digi-Reel	-65 to 150	Active
CDBA240-G	Comchip Technology	40	2	500 @ 2A	500 @ 40V	DO-214AC, SMA	Tape & Reel	-55 to 125	Active
CDBM240-G	Comchip Technology	40	2	500 @ 2A	500 @ 40V	SOD-123T	Tape & Reel	-55 to 125	Active
RB068L-40DDTE25	Rohm Semiconductor	40	2	690 @ 2A	1 @ 40V	DO-214AC, SMA	Tape & Reel	-55 to 150	Active
SK54A-LTP	Micro Commercial Co	40	5	550 @ 5A	1000 @ 40V	DO-214AC, SMA	Cut Tape & Digi-Reel	-55 to 150	Active
STPS140A	STMicroelectronics	40	1	550 @ 1A	12 @ 40V	DO-214AC, SMA	Cut Tape & Digi-Reel	-55 to 150	Active

Engineering Selection Recommendations

Direct Electrical Equivalents (40 V, 2 A, DO-214AC SMA):

The following parts are direct substitutes with identical electrical ratings and package specifications:

SS24S-E3/5AT (Vishay): Identical electrical parameters. Available in Tape & Reel format with 4,346 pcs in stock. Suitable for direct replacement.
SS24S-E3/61T (Vishay): Identical electrical parameters. Available in Cut Tape format with 6,616 pcs in stock. Suitable for direct replacement where Cut Tape packaging is acceptable.
SS24S-M3/5AT (Vishay): Identical electrical parameters. Available in Tape & Reel format with 42,288 pcs in stock. Highest inventory availability among Vishay equivalents.
SS24SHE3_B/H (Vishay): Identical electrical parameters with AEC-Q101 automotive qualification. Available in Tape & Reel format with 43,700 pcs in stock. Suitable for automotive applications.

Cross-Manufacturer Equivalents (40 V, 2 A, DO-214AC SMA):

B240A-13-F (Diodes Incorporated): Meets 40 V, 2 A specifications. Forward voltage 500 mV @ 2 A (50 mV lower than SS24S-M3/61T). Reverse leakage 500 µA @ 40 V (higher than main part). Operating temperature range -65°C to 150°C. Highest inventory availability at 125,300 pcs. Suitable for applications where lower forward voltage is beneficial.
CDBA240-G (Comchip Technology): Meets 40 V, 2 A specifications. Forward voltage 500 mV @ 2 A. Reverse leakage 500 µA @ 40 V. Maximum junction temperature 125°C (lower than main part). Available in Tape & Reel with 5,100 pcs in stock. Suitable for applications with lower thermal requirements.

Automotive-Qualified Alternatives:

SS24SHE3_B/H (Vishay): AEC-Q101 qualified. Identical electrical parameters to main part. Recommended for automotive applications requiring qualification documentation.
RB068L-40DDTE25 (Rohm Semiconductor): AEC-Q101 qualified. 40 V, 2 A specifications. Forward voltage 690 mV @ 2 A (higher than main part). Reverse leakage 1 µA @ 40 V (significantly lower than main part). Available in Tape & Reel with 1,800 pcs in stock. Suitable for automotive applications where lower reverse leakage is required.

Higher Current Alternative (40 V, 5 A, DO-214AC SMA):

SK54A-LTP (Micro Commercial Co): 40 V, 5 A rating. Same package footprint (DO-214AC SMA). Forward voltage 550 mV @ 5 A. Suitable for applications requiring higher current capacity while maintaining the same voltage rating and package form factor. Available in Cut Tape & Digi-Reel with 54,050 pcs in stock.

Lower Current Alternative (40 V, 1 A, DO-214AC SMA):

STPS140A (STMicroelectronics): 40 V, 1 A rating. Same package footprint (DO-214AC SMA). Forward voltage 550 mV @ 1 A. Reverse leakage 12 µA @ 40 V (significantly lower than main part). Suitable for applications with lower current requirements. Available in Cut Tape & Digi-Reel with 105,400 pcs in stock.

Alternative Package Form Factor (40 V, 2 A, SOD-123T Mini SMA):

CDBM240-G (Comchip Technology): 40 V, 2 A rating in SOD-123T (Mini SMA) package. Forward voltage 500 mV @ 2 A. Reverse leakage 500 µA @ 40 V. Maximum junction temperature 125°C. Suitable for space-constrained applications where smaller package footprint is required. Available in Tape & Reel with 5,200 pcs in stock.

All listed parts maintain ROHS3 compliance, MSL 1 (Unlimited) moisture sensitivity, and Active product status.

Frequently Asked Questions (FAQ)

Q: Can I use SS24S-E3/61T as a direct replacement for SS24S-M3/61T?

A: Yes. Both parts have identical electrical specifications (40 V, 2 A, 550 mV forward voltage @ 2 A, 200 µA reverse leakage @ 40 V) and the same DO-214AC SMA package. The difference is packaging format: SS24S-E3/61T is supplied in Cut Tape (CT) while SS24S-M3/61T is supplied in Tape & Reel (TR). Select based on your assembly process requirements.

Q: What is the difference between SS24S-M3/5AT and SS24S-M3/61T?

A: Both parts have identical electrical specifications and packaging format (Tape & Reel). The difference is in the tape reel configuration (5AT versus 61T). Both are suitable for direct replacement. SS24S-M3/5AT has higher inventory availability (42,288 pcs versus 21,300 pcs).

Q: Can I substitute B240A-13-F for SS24S-M3/61T?

A: Yes, with noted parameter differences. B240A-13-F meets the 40 V, 2 A core specifications and uses the same DO-214AC SMA package. However, forward voltage is 500 mV @ 2 A (50 mV lower) and reverse leakage is 500 µA @ 40 V (higher than the 200 µA of SS24S-M3/61T). Operating temperature range is -65°C to 150°C (5°C lower minimum). Verify these differences are acceptable for your application.

Q: Is CDBA240-G compatible with SS24S-M3/61T?

A: CDBA240-G meets the 40 V, 2 A core specifications and uses the same DO-214AC SMA package. Forward voltage is 500 mV @ 2 A and reverse leakage is 500 µA @ 40 V. The maximum junction temperature is 125°C, which is 25°C lower than SS24S-M3/61T. Verify that your application does not require operation above 125°C junction temperature.

Q: What is the difference between CDBM240-G and CDBA240-G?

A: Both parts have identical electrical specifications (40 V, 2 A, 500 mV forward voltage, 500 µA reverse leakage). The key difference is package: CDBA240-G uses DO-214AC (SMA), while CDBM240-G uses SOD-123T (Mini SMA). CDBM240-G is smaller and suitable for space-constrained designs. Both have maximum junction temperature of 125°C.

Q: Can I use SK54A-LTP as a replacement for SS24S-M3/61T?

A: SK54A-LTP is not a direct replacement. While it maintains the same 40 V voltage rating and DO-214AC SMA package, it is rated for 5 A average rectified current instead of 2 A. Use SK54A-LTP only if your application requires higher current capacity. It is not suitable for applications designed for 2 A operation.

Q: Can I use STPS140A as a replacement for SS24S-M3/61T?

A: STPS140A is not a direct replacement. While it maintains the same 40 V voltage rating and DO-214AC SMA package, it is rated for 1 A average rectified current instead of 2 A. Use STPS140A only if your application requires lower current operation. It is not suitable for applications designed for 2 A operation.

Q: What does AEC-Q101 qualification mean for SS24SHE3_B/H?

A: AEC-Q101 is an automotive industry qualification standard for discrete semiconductors. SS24SHE3_B/H carries this qualification, indicating it meets automotive reliability and quality requirements. Use this part if your application requires automotive-grade components with formal qualification documentation.

Q: Is RB068L-40DDTE25 suitable for my application?

A: RB068L-40DDTE25 meets the 40 V, 2 A core specifications and is AEC-Q101 qualified. However, forward voltage is 690 mV @ 2 A (140 mV higher than SS24S-M3/61T) and reverse leakage is only 1 µA @ 40 V (significantly lower). Use this part if your application benefits from lower reverse leakage and can tolerate higher forward voltage drop. It is suitable for automotive applications.

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

A: Both formats contain the same components in the same package. Cut Tape (CT) is supplied in shorter tape lengths suitable for manual assembly or smaller production runs. Tape & Reel (TR) is supplied on full reels suitable for automated pick-and-place assembly. Select based on your assembly process and volume requirements.

Q: Are all listed parts ROHS3 compliant?

A: Yes. All parts listed in this reference are ROHS3 compliant and have MSL 1 (Unlimited) moisture sensitivity level, indicating they do not require special moisture control during storage and handling.

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