RS3BB-13 Equivalent & Substitute Parts

Part Overview

The RS3BB-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 with acceptable parameter variations within the allowed tolerance range for this diode category.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	100	V
Current - Average Rectified (Io)	3	A
Voltage - Forward (Vf) (Max) @ If	1.3	V @ 3 A
Reverse Recovery Time (trr)	150	ns
Current - Reverse Leakage @ Vr	5	µA @ 100 V
Package / Case	DO-214AA, SMB	—
Mounting Type	Surface Mount	—
Operating Temperature - Junction	-65 to 150	°C

Substitute Part Grouping Explanation

Substitution of the RS3BB-13 is determined by strict adherence to the following electrical and mechanical parameters:

Primary Substitution Criteria:

Voltage - DC Reverse (Vr) (Max): 100 V minimum
Current - Average Rectified (Io): 3 A minimum
Package / Case: DO-214AA, SMB (Surface Mount)
Mounting Type: Surface Mount

Secondary Compatibility Parameters:

Voltage - Forward (Vf) (Max) @ If: Must not exceed 1.3 V @ 3 A for direct equivalence; variations up to 1.15 V are acceptable for substitute applications
Reverse Recovery Time (trr): Fast Recovery (≤500 ns) preferred; Standard Recovery (>500 ns) acceptable for substitute applications
Current - Reverse Leakage @ Vr: Must not exceed 10 µA @ 100 V
Operating Temperature - Junction: -65°C to 150°C minimum range

Parts meeting all primary criteria and secondary parameters are classified as equivalent or substitute parts. The RS3BB-13-F is a parametric equivalent with identical electrical specifications and improved compliance status. The S3BB-TP is a manufacturer-recommended substitute with acceptable parameter variations in forward voltage and recovery speed characteristics.

Parameter Comparison

Parameter	RS3BB-13 (Main)	RS3BB-13-F (Equivalent)	S3BB-TP (Substitute)
Manufacturer	Diodes Incorporated	Diodes Incorporated	Micro Commercial Co
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	1.3 V @ 3 A	1.3 V @ 3 A	1.15 V @ 3 A
Speed	Fast Recovery ≤500ns, >200mA	Fast Recovery ≤500ns, >200mA	Standard Recovery >500ns, >200mA
Reverse Recovery Time (trr)	150 ns	150 ns	Not specified
Current - Reverse Leakage @ Vr	5 µA @ 100 V	5 µA @ 100 V	10 µA @ 100 V
Package / Case	DO-214AA, SMB	DO-214AA, SMB	DO-214AA, SMB
Mounting Type	Surface Mount	Surface Mount	Surface Mount
Operating Temperature - Junction	-65°C to 150°C	-65°C to 150°C	Not specified
Product Status	Discontinued at DiGi Electronics	Active	Not For New Designs
RoHS Status	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant
Packaging	Bulk	Tape & Reel (TR)	Tape & Reel (TR)

Engineering Selection Recommendations

RS3BB-13-F (Diodes Incorporated): This part is the preferred parametric equivalent for direct replacement of the RS3BB-13. It maintains identical electrical specifications across all critical parameters including reverse voltage, forward voltage, current rating, and recovery time. The RS3BB-13-F carries Active product status and ROHS3 compliance, making it suitable for new designs and production applications. Tape & Reel packaging is available for high-volume manufacturing. This part is recommended as the primary substitute for discontinued RS3BB-13 applications.

S3BB-TP (Micro Commercial Co): This part is a manufacturer-recommended substitute that meets the primary substitution criteria of 100 V reverse voltage, 3 A current rating, and DO-214AA SMB package. The S3BB-TP exhibits a lower forward voltage (1.15 V versus 1.3 V) and standard recovery speed characteristics compared to the main part. The product status is classified as Not For New Designs, indicating this part is suitable for legacy system maintenance and repair only. ROHS3 compliance is provided. Selection of this part is appropriate only when RS3BB-13-F availability is constrained and application requirements permit standard recovery speed operation.

Frequently Asked Questions (FAQ)

Q: Can RS3BB-13-F be used as a direct replacement for RS3BB-13?

A: Yes. The RS3BB-13-F is a parametric equivalent with identical electrical specifications. All critical parameters including reverse voltage (100 V), forward voltage (1.3 V @ 3 A), current rating (3 A), and recovery time (150 ns) are matched. The primary difference is improved RoHS compliance status and Active product availability.

Q: What are the key differences between RS3BB-13-F and S3BB-TP?

A: Both parts meet the primary substitution criteria of 100 V reverse voltage, 3 A current rating, and DO-214AA SMB package. The RS3BB-13-F maintains fast recovery characteristics (150 ns) and identical forward voltage (1.3 V @ 3 A), while the S3BB-TP exhibits standard recovery speed and lower forward voltage (1.15 V @ 3 A). The S3BB-TP carries a Not For New Designs status, restricting its use to legacy applications.

Q: Are there packaging differences between these parts?

A: The RS3BB-13 is supplied in bulk packaging. Both RS3BB-13-F and S3BB-TP are supplied in Tape & Reel (TR) format, which is standard for high-volume surface mount assembly. Tape & Reel packaging is compatible with automated pick-and-place equipment used in modern manufacturing processes.

Q: What is the significance of the RoHS compliance difference?

A: The RS3BB-13 is RoHS non-compliant, while RS3BB-13-F and S3BB-TP are ROHS3 compliant. RoHS3 compliance indicates the part meets current environmental and hazardous substance restrictions. For applications subject to regulatory requirements or customer specifications mandating RoHS compliance, RS3BB-13-F or S3BB-TP must be selected.

Q: Can S3BB-TP be used in applications requiring fast recovery characteristics?

A: The S3BB-TP is specified as Standard Recovery (>500 ns), compared to the RS3BB-13 Fast Recovery (≤500 ns, 150 ns typical). Applications requiring fast recovery switching characteristics should use RS3BB-13-F. The S3BB-TP is suitable only for applications where standard recovery speed is acceptable.

Q: What is the impact of the forward voltage difference between RS3BB-13-F and S3BB-TP?

A: Both parts are rated at 1.3 V maximum forward voltage @ 3 A. The S3BB-TP exhibits 1.15 V typical forward voltage, which is lower. This difference results in reduced power dissipation in the S3BB-TP. For applications with tight thermal budgets, the S3BB-TP may provide improved performance. For applications requiring matched forward voltage characteristics, RS3BB-13-F is preferred.

Q: Is the reverse leakage current difference between parts significant?

A: The RS3BB-13 and RS3BB-13-F are specified at 5 µA @ 100 V, while S3BB-TP is specified at 10 µA @ 100 V. This difference is within acceptable limits for general-purpose rectifier applications. For high-impedance or precision analog circuits, the lower leakage of RS3BB-13-F is preferred.

Q: What does "Not For New Designs" status mean for S3BB-TP?

A: This designation indicates the S3BB-TP is in mature or end-of-life phase and is not recommended for incorporation into new product designs. The part remains available for legacy system support and repair. New designs should utilize RS3BB-13-F, which carries Active status.

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