SB3100-B Schottky Diode Equivalent & Substitute Parts

Part Overview

The SB3100-B is a Schottky rectifier diode manufactured by Diodes Incorporated, rated for 100V DC reverse voltage and 3A average rectified current in a DO-201AD axial through-hole package. This part is classified as obsolete, making identification of active equivalent and substitute components necessary for ongoing design support and procurement continuity. Substitute parts must maintain identical electrical performance characteristics and package compatibility to ensure direct replacement capability in existing circuit designs.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	100	V
Current - Average Rectified (Io)	3	A
Voltage - Forward (Vf) (Max) @ If	790 mV @ 3 A	mV
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)	ns
Current - Reverse Leakage @ Vr	500	µA @ 100 V
Package / Case	DO-201AD, Axial	—
Mounting Type	Through Hole	—
Operating Temperature - Junction	-65 to 150	°C
Technology	Schottky	—
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitute parts for the SB3100-B are qualified based on strict equivalence of the following electrical and mechanical parameters:

Voltage - DC Reverse (Vr) (Max): 100 V
Current - Average Rectified (Io): 3 A
Voltage - Forward (Vf) (Max) @ If: 790 mV @ 3 A
Speed: Fast Recovery ≤ 500ns, > 200mA (Io)
Current - Reverse Leakage @ Vr: 500 µA @ 100 V
Package / Case: DO-201AD, Axial
Mounting Type: Through Hole
Operating Temperature - Junction: -65°C to 150°C
Technology: Schottky
RoHS Status: ROHS3 Compliant

All identified substitute parts maintain these parameters without deviation. Substitution is valid across different manufacturers and packaging formats (Cut Tape, Tape & Reel) provided electrical specifications and physical package dimensions remain unchanged.

Parameter Comparison

Parameter	SB3100-B (Main)	SB3100-T (Diodes Inc.)	SB3B0-T/R (EIC Semiconductor)
Manufacturer	Diodes Incorporated	Diodes Incorporated	EIC SEMICONDUCTOR INC.
Voltage - DC Reverse (Vr) (Max)	100 V	100 V	100 V
Current - Average Rectified (Io)	3 A	3 A	3 A
Voltage - Forward (Vf) (Max) @ If	790 mV @ 3 A	790 mV @ 3 A	790 mV @ 3 A
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)
Current - Reverse Leakage @ Vr	500 µA @ 100 V	500 µA @ 100 V	500 µA @ 100 V
Package / Case	DO-201AD, Axial	DO-201AD, Axial	DO-201AD, Axial
Mounting Type	Through Hole	Through Hole	Through Hole
Operating Temperature - Junction	-65°C to 150°C	-65°C to 150°C	-65°C to 150°C
Technology	Schottky	Schottky	Schottky
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Obsolete	Active	Active
Packaging Format	Bulk	Cut Tape (CT)	Tape & Reel (TR)

Engineering Selection Recommendations

SB3100-T (Diodes Incorporated)

The SB3100-T is the primary substitute for the obsolete SB3100-B. Both parts are manufactured by Diodes Incorporated and share identical electrical specifications and package geometry. The SB3100-T maintains active product status and is available in Cut Tape packaging format. ROHS3 compliance is confirmed. This part provides direct functional equivalence with the original design specification.

SB3B0-T/R (EIC SEMICONDUCTOR INC.)

The SB3B0-T/R is a secondary substitute manufactured by EIC SEMICONDUCTOR INC. All electrical parameters and package specifications match the SB3100-B exactly. The part is available in Tape & Reel packaging format and maintains active product status. ROHS3 compliance is confirmed. This part provides direct functional equivalence and is suitable for high-volume procurement applications.

Both substitute parts are qualified for direct replacement in applications originally designed for the SB3100-B. Selection between substitutes depends on packaging format requirements and supplier availability.

Frequently Asked Questions (FAQ)

Q: Can the SB3100-T directly replace the SB3100-B in existing designs?

A: Yes. The SB3100-T maintains identical electrical specifications (100V reverse voltage, 3A current rating, 790mV forward voltage drop, fast recovery characteristics) and package geometry (DO-201AD axial through-hole). Direct substitution is valid without circuit modification.

Q: What is the difference between the SB3100-T and SB3B0-T/R?

A: Both parts are electrically and mechanically equivalent. The primary differences are manufacturer (Diodes Incorporated versus EIC SEMICONDUCTOR INC.) and packaging format (Cut Tape versus Tape & Reel). Electrical performance and package dimensions are identical.

Q: Why is the SB3100-B classified as obsolete?

A: The SB3100-B has been discontinued by Diodes Incorporated. The SB3100-T serves as the active replacement product with identical specifications.

Q: Are there any compliance differences between the substitute parts?

A: Both substitute parts are ROHS3 compliant. The SB3100-T is REACH Unaffected. The SB3B0-T/R REACH status is available upon request from the supplier.

Q: Does packaging format affect electrical performance?

A: No. Cut Tape (CT) and Tape & Reel (TR) packaging formats are different delivery methods for the same component. Electrical specifications and performance are identical regardless of packaging format.

Q: Can these parts be used interchangeably in production?

A: Yes, provided the packaging format is compatible with assembly equipment. Both the SB3100-T and SB3B0-T/R are suitable for through-hole assembly processes.

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