SS25-M3/52T Equivalent & Substitute Parts

Part Overview

The SS25-M3/52T is a Schottky rectifier diode manufactured by Vishay General Semiconductor - Diodes Division, rated for 50V DC reverse voltage and 2A average rectified current in a surface mount DO-214AA (SMB) package. This component is classified as Active product status and is RoHS3 compliant. Equivalent and substitute parts are identified to support procurement flexibility, inventory management, and supply chain continuity for applications requiring 50V/2A Schottky rectification in surface mount configurations.

Key Parameters

Parameter	Value	Unit
Technology	Schottky	—
Voltage - DC Reverse (Vr) (Max)	50	V
Current - Average Rectified (Io)	2	A
Voltage - Forward (Vf) (Max) @ If	700 mV @ 2 A	—
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)	—
Current - Reverse Leakage @ Vr	400–500	µA @ 50 V
Package / Case	DO-214AA, SMB	—
Mounting Type	Surface Mount	—
Operating Temperature - Junction	-65°C to 150°C (or -55°C to 150°C)	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution of the SS25-M3/52T is determined by electrical and mechanical parameter equivalence within the Schottky rectifier diode category. The critical parameters governing substitutability are:

Electrical Parameters:

Voltage - DC Reverse (Vr) (Max): 50V
Current - Average Rectified (Io): 2A
Voltage - Forward (Vf) (Max) @ If: 700 mV @ 2A
Speed: Fast Recovery ≤ 500ns, > 200mA (Io)
Current - Reverse Leakage @ Vr: 400–500 µA @ 50V

Mechanical Parameters:

Package / Case: DO-214AA, SMB
Mounting Type: Surface Mount
Operating Temperature - Junction: -55°C to 150°C (minimum range)

Compliance Parameters:

RoHS Status: ROHS3 Compliant
Moisture Sensitivity Level (MSL): 1 (Unlimited)

All identified substitute parts maintain these core electrical and mechanical specifications, ensuring direct functional equivalence in circuit applications. Reverse leakage current tolerance extends to 500 µA, which remains within acceptable limits for Schottky rectifier performance. Automotive-grade variants (AEC-Q101 qualified) are identified as parametric equivalents with enhanced qualification status.

Parameter Comparison

Parameter	SS25-M3/52T (Vishay)	SS25HE3_A/H (Vishay)	SS25HE3_A/I (Vishay)	SS25 (Taiwan Semiconductor)	B250-13-F (Diodes Inc.)	B250Q-13 (Diodes Inc.)
Manufacturer	Vishay General Semiconductor	Vishay General Semiconductor	Vishay General Semiconductor	Taiwan Semiconductor Corporation	Diodes Incorporated	Diodes Incorporated
Technology	Schottky	Schottky	Schottky	Schottky	Schottky	Schottky
Voltage - DC Reverse (Vr) (Max)	50 V	50 V	50 V	50 V	50 V	50 V
Current - Average Rectified (Io)	2 A	2 A	2 A	2 A	2 A	2 A
Voltage - Forward (Vf) (Max) @ If	700 mV @ 2 A	700 mV @ 2 A	700 mV @ 2 A	700 mV @ 2 A	700 mV @ 2 A	700 mV @ 2 A
Speed	Fast Recovery ≤ 500ns, > 200mA	Fast Recovery ≤ 500ns, > 200mA	Fast Recovery ≤ 500ns, > 200mA	Fast Recovery ≤ 500ns, > 200mA	Fast Recovery ≤ 500ns, > 200mA	Fast Recovery ≤ 500ns, > 200mA
Current - Reverse Leakage @ Vr	400 µA @ 50 V	400 µA @ 50 V	400 µA @ 50 V	400 µA @ 50 V	500 µA @ 50 V	500 µA @ 50 V
Package / Case	DO-214AA, SMB	DO-214AA, SMB	DO-214AA, SMB	DO-214AA, SMB	DO-214AA, SMB	DO-214AA, SMB
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Operating Temperature - Junction	-65°C ~ 150°C	-65°C ~ 150°C	-65°C ~ 150°C	-55°C ~ 150°C	-65°C ~ 150°C	-65°C ~ 150°C
Grade	Standard	Automotive	Automotive	Standard	Standard	Automotive
Qualification	—	AEC-Q101	AEC-Q101	—	—	AEC-Q101
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected

Engineering Selection Recommendations

Vishay SS25HE3_A/H and SS25HE3_A/I (Automotive-Grade Equivalents)

These parts are parametric equivalents of the SS25-M3/52T with AEC-Q101 automotive qualification. Both maintain identical electrical specifications (50V, 2A, 700mV forward voltage, 400µA reverse leakage) and operating temperature range (-65°C to 150°C). Selection of these variants is appropriate for applications requiring automotive-grade reliability and traceability. Inventory availability is substantial (4085 and 3813 units respectively).

Taiwan Semiconductor SS25 (Manufacturer-Recommended Equivalent)

This part is designated as the manufacturer-recommended equivalent and provides identical electrical performance across all critical parameters. Operating temperature range is -55°C to 150°C, which is narrower than the Vishay standard-grade part but sufficient for most commercial and industrial applications. Inventory availability is highest among all substitutes (35,100 units), supporting high-volume procurement requirements.

Diodes Incorporated B250-13-F (Parametric Equivalent)

This part meets all electrical specifications with reverse leakage current of 500 µA at 50V, which is within acceptable tolerance. Operating temperature range matches the Vishay standard-grade part (-65°C to 150°C). This option is suitable for applications where multi-source qualification is required. Inventory availability is 18,186 units.

Diodes Incorporated B250Q-13 (Automotive-Grade Equivalent)

This part combines automotive-grade qualification (AEC-Q101) with parametric equivalence to the SS25-M3/52T. Reverse leakage current is 500 µA at 50V. Operating temperature range is -65°C to 150°C. Selection is appropriate for automotive applications requiring dual-source capability. Inventory availability is 3,768 units.

All substitute parts are RoHS3 compliant, MSL 1 (Unlimited), and REACH Unaffected, ensuring regulatory compliance across global markets.

Frequently Asked Questions (FAQ)

Q: Can the SS25HE3_A/H or SS25HE3_A/I be used as direct replacements for the SS25-M3/52T?

A: Yes. Both parts are parametric equivalents with identical electrical specifications (50V, 2A, 700mV forward voltage, 400µA reverse leakage) and the same DO-214AA SMB package. The primary difference is AEC-Q101 automotive qualification, which adds reliability assurance for automotive applications. No circuit modifications are required.

Q: What is the difference between the standard-grade SS25-M3/52T and the automotive-grade SS25HE3_A/H?

A: Both parts have identical electrical and thermal specifications. The automotive-grade variant carries AEC-Q101 qualification, indicating compliance with automotive industry reliability and testing standards. Selection depends on application requirements; automotive-grade parts are specified for automotive and safety-critical applications.

Q: Can the Taiwan Semiconductor SS25 be used in place of the Vishay SS25-M3/52T?

A: Yes. The Taiwan Semiconductor SS25 is the manufacturer-recommended equivalent with identical electrical performance. The operating temperature range is -55°C to 150°C versus -65°C to 150°C for the Vishay part. For applications operating above -55°C, this part is fully compatible. For applications requiring operation below -55°C, the Vishay part is required.

Q: What is the significance of the 500 µA reverse leakage current in the Diodes Incorporated B250-13-F and B250Q-13?

A: The B250-13-F and B250Q-13 specify 500 µA reverse leakage at 50V, compared to 400 µA for the Vishay parts. This 100 µA difference is within normal manufacturing tolerance for Schottky diodes and does not affect circuit functionality in standard rectification applications. Both values are acceptable for the 50V/2A rating class.

Q: Are all substitute parts available in the same packaging format?

A: Yes. All substitute parts use the DO-214AA (SMB) surface mount package with identical pin configuration and footprint. PCB layout and assembly processes require no modification.

Q: Which substitute part should be selected for high-volume production?

A: The Taiwan Semiconductor SS25 offers the highest inventory availability (35,100 units) and is the manufacturer-recommended equivalent. For automotive applications requiring AEC-Q101 qualification, the Vishay SS25HE3_A/H or Diodes Incorporated B250Q-13 are appropriate selections with substantial inventory (4,085 and 3,768 units respectively).

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All identified substitute parts are RoHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating and REACH Unaffected status, ensuring compliance with environmental and regulatory requirements across global markets.

Q: Can the B250-13-F and B250Q-13 be used interchangeably?

A: Both parts are parametric equivalents with identical electrical specifications and DO-214AA SMB packaging. The B250Q-13 carries AEC-Q101 automotive qualification, while the B250-13-F does not. Selection depends on application requirements; both are electrically interchangeable in non-automotive applications.

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