SB150-T Schottky Diode Equivalent & Substitute Parts

Part Overview

The SB150-T is a Schottky rectifier diode manufactured by Diodes Incorporated, rated for 50 V DC reverse voltage and 1 A average rectified current in a through-hole DO-41 package. This component is classified as Active product status and is RoHS3 compliant. Substitute parts are necessary when the primary part becomes unavailable due to supply constraints, inventory depletion, or when alternative manufacturers' components meet identical electrical and mechanical specifications for the application.

Key Parameters

Parameter	Value
Voltage - DC Reverse (Vr) (Max)	50 V
Current - Average Rectified (Io)	1 A
Voltage - Forward (Vf) (Max) @ If	700 mV @ 1 A
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)
Current - Reverse Leakage @ Vr	500 µA @ 50 V
Mounting Type	Through Hole
Package / Case	DO-204AL, DO-41, Axial
Operating Temperature - Junction	-65°C ~ 150°C
Technology	Schottky
RoHS Status	RoHS3 Compliant

Substitute Part Grouping Explanation

Substitution of the SB150-T is determined by strict equivalence across the following critical parameters:

Voltage Rating: DC reverse voltage must equal 50 V maximum
Current Rating: Average rectified current must equal 1 A
Technology: Schottky diode technology
Speed Characteristic: Fast recovery ≤ 500ns at currents > 200mA
Reverse Leakage: 500 µA @ 50 V
Mounting Configuration: Through-hole axial or DO-41 package variants
Operating Temperature Range: -65°C to 150°C junction temperature
Compliance: RoHS3 compliant status

Parts meeting all these parameters are electrically and mechanically interchangeable. Forward voltage (Vf) variations within the specified range do not preclude substitution, as this parameter remains within acceptable design tolerances for Schottky rectifier applications.

Parameter Comparison

Parameter	SB150-T (Diodes Inc.)	SB150-E3/54 (Vishay)	SB150-E3/73 (Vishay)	MBR150G (onsemi)
Voltage - DC Reverse (Vr) (Max)	50 V	50 V	50 V	50 V
Current - Average Rectified (Io)	1 A	1 A	1 A	1 A
Voltage - Forward (Vf) (Max) @ If	700 mV @ 1 A	650 mV @ 1 A	650 mV @ 1 A	750 mV @ 1 A
Speed	Fast Recovery ≤ 500ns, > 200mA	Fast Recovery ≤ 500ns, > 200mA	Fast Recovery ≤ 500ns, > 200mA	Fast Recovery ≤ 500ns, > 200mA
Current - Reverse Leakage @ Vr	500 µA @ 50 V	500 µA @ 50 V	500 µA @ 50 V	500 µA @ 50 V
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole
Package / Case	DO-204AL, DO-41, Axial	DO-204AL (DO-41)	DO-204AL (DO-41)	Axial
Operating Temperature - Junction	-65°C ~ 150°C	-65°C ~ 150°C	-65°C ~ 150°C	-65°C ~ 150°C
Technology	Schottky	Schottky	Schottky	Schottky
RoHS Status	RoHS3 Compliant	RoHS3 Compliant	RoHS3 Compliant	RoHS3 Compliant
Product Status	Active	Active	Active	Obsolete

Engineering Selection Recommendations

Primary Substitutes (Active Status)

SB150-E3/54 and SB150-E3/73 manufactured by Vishay General Semiconductor are direct electrical and mechanical equivalents to the SB150-T. Both parts maintain identical voltage and current ratings, reverse leakage characteristics, and operating temperature range. Both are classified as Active products with RoHS3 compliance. The SB150-E3/54 and SB150-E3/73 differ only in packaging designation (DO-204AL variant coding) and forward voltage specification (650 mV versus 700 mV), which represents an improvement in efficiency. These parts are suitable for direct substitution in all applications where the SB150-T is specified.

Secondary Substitute (Obsolete Status)

The MBR150G manufactured by onsemi meets all electrical specifications but carries Obsolete product status. This part is suitable for substitution only when long-term availability is not a design requirement. The MBR150G exhibits a higher forward voltage (750 mV @ 1 A) compared to the primary part, which may result in increased power dissipation in high-current applications. The MBR150G is supplied in axial package configuration, which may require PCB layout modification compared to the DO-41 package of the primary part.

Compliance Verification

All substitute parts maintain RoHS3 compliance, REACH unaffected status, and identical ECCN and HTSUS classifications as the SB150-T. Moisture sensitivity level (MSL) is rated as 1 (Unlimited) for all parts, indicating no special moisture handling requirements.

Frequently Asked Questions (FAQ)

Q: Can SB150-E3/54 and SB150-E3/73 be used interchangeably with SB150-T?

A: Yes. Both Vishay parts meet all electrical and mechanical specifications of the SB150-T. The forward voltage specification of 650 mV (versus 700 mV) represents equivalent performance within acceptable design tolerances for Schottky rectifier applications.

Q: What is the difference between SB150-E3/54 and SB150-E3/73?

A: Both parts are electrically identical. The designation difference reflects Vishay's internal packaging and distribution coding. Both are supplied in DO-204AL (DO-41) package configuration and are suitable for direct substitution.

Q: Is the MBR150G a suitable replacement for the SB150-T?

A: The MBR150G meets all electrical specifications but carries Obsolete product status. It is suitable for substitution when supply availability is not a long-term concern. The higher forward voltage (750 mV) may increase power dissipation. The axial package configuration may require PCB layout modification.

Q: Does forward voltage variation affect substitution compatibility?

A: No. The forward voltage specifications (650 mV to 750 mV @ 1 A) across all parts remain within acceptable design tolerances for Schottky rectifier applications. Forward voltage variation does not preclude electrical or mechanical substitution.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. SB150-E3/54, SB150-E3/73, and MBR150G are all RoHS3 compliant with identical REACH unaffected status as the SB150-T.

Q: What package configurations are available among substitute parts?

A: SB150-T, SB150-E3/54, and SB150-E3/73 are supplied in DO-204AL (DO-41) package. MBR150G is supplied in axial package configuration. Both configurations are through-hole mounting types and are mechanically compatible with standard PCB layouts designed for 50 V 1 A Schottky diodes.

Q: Can these parts be used in high-temperature applications?

A: Yes. All parts are rated for operating junction temperatures from -65°C to 150°C, supporting applications across industrial and automotive temperature ranges.

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