SS25-M3/5BT Equivalent & Substitute Parts

Part Overview

The SS25-M3/5BT 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 based on matching electrical specifications, package compatibility, and operational parameters to ensure functional interchangeability in circuit applications.

Key Parameters

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

Substitute Part Grouping Explanation

Substitute parts for the SS25-M3/5BT are identified through parametric equivalence based on the following critical parameters:

Matching Criteria:

Voltage - DC Reverse (Vr) (Max): 50 V
Current - Average Rectified (Io): 2A
Voltage - Forward (Vf) (Max) @ If: 700 mV @ 2 A
Speed: Fast Recovery ≤ 500ns, > 200mA (Io)
Package / Case: DO-214AA, SMB
Mounting Type: Surface Mount
Technology: Schottky

All identified substitute parts meet these electrical and mechanical specifications. Variations in secondary parameters such as reverse leakage current (within acceptable ranges), capacitance specifications, and manufacturer qualifications do not preclude functional substitution when primary electrical ratings and package compatibility are maintained.

Parameter Comparison

Parameter	SS25-M3/5BT (Vishay)	SS25HE3_A/H (Vishay)	SS25HE3_A/I (Vishay)	SS25 (TSC)	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)	2A	2A	2A	2A	2A	2A
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 (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)
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
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)
Product Status	Active	Active	Active	Active	Active	Active
Grade	Standard	Automotive	Automotive	Standard	Standard	Automotive
Qualification	None Listed	AEC-Q101	AEC-Q101	None Listed	None Listed	AEC-Q101

Engineering Selection Recommendations

Vishay SS25HE3_A/H and SS25HE3_A/I: These parts are parametric equivalents with identical electrical specifications to the SS25-M3/5BT. Both variants carry Automotive grade designation and AEC-Q101 qualification, indicating suitability for automotive applications. These parts are recommended for applications requiring automotive-grade reliability and traceability.

Taiwan Semiconductor Corporation SS25: This part is a manufacturer-recommended equivalent with matching electrical specifications. Operating temperature range extends to -55°C minimum (versus -65°C for the primary part). This part is suitable for general industrial applications where the narrower temperature range is acceptable.

Diodes Incorporated B250-13-F: This part meets all primary electrical specifications with reverse leakage current of 500 µA at 50V (compared to 400 µA for the primary part). Capacitance specification is provided at 200pF @ 4V, 1MHz. This part is suitable for applications where the slightly higher reverse leakage is acceptable.

Diodes Incorporated B250Q-13: This part carries Automotive grade designation and AEC-Q101 qualification with identical electrical specifications to B250-13-F. Capacitance is specified at 200pF @ 40V, 1MHz. This part is recommended for automotive applications requiring qualified components.

All substitute parts maintain ROHS3 compliance, MSL 1 rating, and surface mount DO-214AA (SMB) package compatibility with the primary part.

Frequently Asked Questions (FAQ)

Q: Can SS25HE3_A/H and SS25HE3_A/I be used interchangeably with SS25-M3/5BT?

A: Yes. Both parts are parametric equivalents with identical electrical specifications including voltage rating, current rating, forward voltage, and switching speed. Package compatibility (DO-214AA, SMB) and mounting type (surface mount) are identical. The primary difference is automotive-grade qualification (AEC-Q101) on the substitute parts.

Q: What is the difference between the Vishay and Diodes Incorporated substitute parts?

A: All parts meet the primary electrical specifications (50V, 2A, 700mV forward voltage). Diodes Incorporated parts (B250-13-F and B250Q-13) specify reverse leakage current at 500 µA versus 400 µA for Vishay parts. Capacitance specifications differ between manufacturers. B250Q-13 carries automotive qualification; B250-13-F does not.

Q: Is the Taiwan Semiconductor Corporation SS25 suitable for all applications?

A: The TSC SS25 meets all primary electrical specifications and is suitable for general applications. The operating temperature range is -55°C to 150°C, which is narrower than other substitutes at -65°C minimum. Applications requiring operation below -55°C require alternative parts.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All identified substitute parts carry ROHS3 compliance status, matching the primary part SS25-M3/5BT.

Q: What is the significance of AEC-Q101 qualification?

A: AEC-Q101 qualification indicates the part meets automotive industry reliability standards. Parts carrying this qualification (SS25HE3_A/H, SS25HE3_A/I, and B250Q-13) are suitable for automotive applications requiring qualified component traceability.

Q: Can reverse leakage current differences affect circuit performance?

A: Reverse leakage current is specified at 400 µA for Vishay parts and 500 µA for Diodes Incorporated parts, both at 50V. The 100 µA difference represents a 25% variation in leakage. Circuit design determines whether this difference is acceptable for specific applications.

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

A: Yes. All substitute parts use DO-214AA (SMB) surface mount package with identical pin configuration and footprint compatibility, enabling direct board-level substitution.

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