S3BB-13 Equivalent & Substitute Parts

Part Overview

The S3BB-13 is a general-purpose rectifier diode manufactured by Diodes Incorporated, rated for 100 V DC reverse voltage and 3 A average rectified current in a surface mount SMB (DO-214AA) package. This component is classified as discontinued at DiGi Electronics, necessitating identification of equivalent and substitute parts for ongoing production and repair applications. Equivalent parts maintain identical electrical and mechanical specifications, while substitute parts provide functional alternatives within acceptable parameter ranges for the intended application.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	100	V
Current - Average Rectified (Io)	3	A
Voltage - Forward (Vf) (Max) @ If	1.15 V @ 3 A	V
Speed	Standard Recovery >500ns, > 200mA (Io)	—
Current - Reverse Leakage @ Vr	10	µA @ 100 V
Capacitance @ Vr, F	40	pF @ 4V, 1MHz
Package / Case	DO-214AA, SMB	—
Operating Temperature - Junction	-65 to 150	°C
Mounting Type	Surface Mount	—

Substitute Part Grouping Explanation

Substitution of the S3BB-13 is determined by the following critical parameters: reverse voltage rating (100 V minimum), average rectified current capacity (3 A minimum for direct equivalents), forward voltage drop characteristics, recovery speed classification, and package form factor (DO-214AA SMB). Parts are grouped into two categories:

Parametric Equivalents maintain all electrical specifications and current rating at 3 A, differing only in packaging format (bulk versus tape & reel) or RoHS compliance status.

Manufacturer-Recommended Substitutes may deviate in current rating, recovery speed, or forward voltage characteristics while maintaining the 100 V reverse voltage rating and DO-214AA package compatibility. These parts are selected based on functional compatibility and availability status.

Parameter Comparison

Parameter	S3BB-13	S3BB-13-F	RS2B-E3/52T	S3BB-TP
Manufacturer	Diodes Incorporated	Diodes Incorporated	Vishay General Semiconductor	Micro Commercial Co
Voltage - DC Reverse (Vr) (Max)	100 V	100 V	100 V	100 V
Current - Average Rectified (Io)	3 A	3 A	1.5 A	3 A
Voltage - Forward (Vf) (Max) @ If	1.15 V @ 3 A	1.15 V @ 3 A	1.3 V @ 1.5 A	1.15 V @ 3 A
Speed	Standard Recovery >500ns	Standard Recovery >500ns	Fast Recovery ≤500ns	Standard Recovery >500ns
Current - Reverse Leakage @ Vr	10 µA @ 100 V	10 µA @ 100 V	5 µA @ 100 V	10 µA @ 100 V
Capacitance @ Vr, F	40 pF @ 4V, 1MHz	40 pF @ 4V, 1MHz	20 pF @ 4V, 1MHz	Not specified
Package / Case	DO-214AA, SMB	DO-214AA, SMB	DO-214AA, SMB	DO-214AA, SMB
Packaging Format	Bulk	Tape & Reel (TR)	Tape & Reel (TR)	Tape & Reel (TR)
Operating Temperature - Junction	-65 to 150 °C	-65 to 150 °C	-55 to 150 °C	Not specified
Product Status	Discontinued at DiGi Electronics	Active	Active	Not For New Designs
RoHS Status	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

S3BB-13-F is the primary parametric equivalent for direct replacement of the S3BB-13. This part is manufactured by Diodes Incorporated with identical electrical specifications (100 V, 3 A, 1.15 V forward voltage) and operating temperature range (-65 to 150 °C). The S3BB-13-F is currently active in production and ROHS3 compliant, addressing the RoHS non-compliance status of the original part. The only difference is packaging format (tape & reel versus bulk), which does not affect electrical performance.

RS2B-E3/52T is a manufacturer-recommended substitute from Vishay General Semiconductor suitable for applications where current requirements do not exceed 1.5 A. This part maintains the 100 V reverse voltage rating and DO-214AA package form factor. The RS2B-E3/52T features fast recovery characteristics (≤500ns) and lower reverse leakage current (5 µA), making it suitable for higher-frequency switching applications. The operating temperature range is -55 to 150 °C, which is narrower than the original part at the lower end. This part is ROHS3 compliant and currently in active production.

S3BB-TP is a manufacturer-recommended substitute from Micro Commercial Co with identical current rating (3 A) and forward voltage characteristics (1.15 V @ 3 A) to the S3BB-13. This part maintains the 100 V reverse voltage rating and DO-214AA package compatibility. However, S3BB-TP is designated as "Not For New Designs," indicating limited future availability and support. This part is ROHS3 compliant but should be considered only for legacy system maintenance where no other alternatives are viable.

Frequently Asked Questions (FAQ)

Q: Can S3BB-13-F be used as a direct replacement for S3BB-13?

A: Yes. The S3BB-13-F is a parametric equivalent with identical electrical specifications: 100 V reverse voltage, 3 A average rectified current, 1.15 V forward voltage at 3 A, and -65 to 150 °C operating temperature range. The only difference is packaging format (tape & reel). Both parts use the DO-214AA SMB package and are mechanically and electrically interchangeable.

Q: What are the limitations of using RS2B-E3/52T as a substitute?

A: The RS2B-E3/52T has a reduced current rating of 1.5 A compared to the S3BB-13's 3 A rating. This part is suitable only for applications where the maximum average rectified current does not exceed 1.5 A. The operating temperature range is also narrower (-55 to 150 °C versus -65 to 150 °C). However, the RS2B-E3/52T offers improved performance characteristics including fast recovery (≤500ns) and lower reverse leakage current (5 µA), making it advantageous for high-frequency applications within its current rating.

Q: Is S3BB-TP recommended for new designs?

A: No. S3BB-TP is designated as "Not For New Designs" by the manufacturer. While it provides identical electrical specifications to the S3BB-13 (100 V, 3 A, 1.15 V forward voltage), this status indicates limited future availability and manufacturer support. S3BB-TP should be used only for maintenance and repair of existing systems where no other alternatives are available.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All three substitute parts (S3BB-13-F, RS2B-E3/52T, and S3BB-TP) are ROHS3 compliant. The original S3BB-13 is RoHS non-compliant. If RoHS compliance is a requirement for your application, S3BB-13-F is the recommended direct replacement.

Q: Do all parts use the same package?

A: Yes. All parts listed (S3BB-13, S3BB-13-F, RS2B-E3/52T, and S3BB-TP) use the DO-214AA SMB surface mount package. They are mechanically compatible and can be used interchangeably on the same PCB layout without modification.

Q: What is the difference between standard recovery and fast recovery diodes?

A: The S3BB-13, S3BB-13-F, and S3BB-TP are standard recovery diodes with recovery time greater than 500 ns. The RS2B-E3/52T is a fast recovery diode with recovery time of 150 ns (≤500 ns). Fast recovery diodes are suitable for higher-frequency switching applications and have lower reverse recovery charge, reducing switching losses. Standard recovery diodes are adequate for lower-frequency rectification applications.

Q: Can I use S3BB-13-F in bulk packaging instead of tape & reel?

A: S3BB-13-F is supplied only in tape & reel (TR) packaging format. If bulk packaging is required, the original S3BB-13 was available in bulk, but it is now discontinued. For new procurement, tape & reel format is the standard supply method for surface mount components and is compatible with automated assembly equipment.

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