S3BB-TP Equivalent & Substitute Parts

Part Overview

The S3BB-TP is a general-purpose rectifier diode rated for 100 V DC reverse voltage and 3 A average rectified current in a surface mount DO-214AA (SMB) package. Manufactured by Micro Commercial Co, this component is classified as "Not For New Designs," indicating it has reached end-of-life status. Identification of equivalent and substitute parts is necessary for design continuity, legacy system support, and procurement of functionally compatible alternatives from active product lines.

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
Speed	Standard Recovery >500ns	-
Current - Reverse Leakage @ Vr	10	µA @ 100 V
Package / Case	DO-214AA, SMB	-
Mounting Type	Surface Mount	-
RoHS Status	ROHS3 Compliant	-
Moisture Sensitivity Level (MSL)	1 (Unlimited)	-

Substitute Part Grouping Explanation

Substitution of the S3BB-TP is determined by the following critical parameters:

Mandatory Matching Criteria:

Voltage - DC Reverse (Vr) (Max): 100 V
Current - Average Rectified (Io): 3 A (or higher)
Package / Case: DO-214AA, SMB
Mounting Type: Surface Mount
RoHS Status: ROHS3 Compliant

Acceptable Variation Criteria:

Voltage - Forward (Vf) (Max) @ If: Substitute values must not exceed application voltage drop requirements
Speed: Recovery time may vary between Standard (>500ns) and Fast Recovery (≤500ns) depending on circuit requirements
Current - Reverse Leakage @ Vr: Lower values indicate improved performance
Operating Temperature - Junction: Wider ranges provide greater design margin

Substitute parts must satisfy all mandatory matching criteria. Variations in forward voltage, recovery speed, and reverse leakage are acceptable provided the application circuit tolerates these differences.

Parameter Comparison

Parameter	S3BB-TP (Main)	S3BB-13-F	RS3BB-13-F	ES3BB-13-F	MURS210T3G
Manufacturer	Micro Commercial Co	Diodes Incorporated	Diodes Incorporated	Diodes Incorporated	onsemi
Product Status	Not For New Designs	Active	Active	Active	Last Time Buy
Voltage - DC Reverse (Vr) (Max)	100 V	100 V	100 V	100 V	100 V
Current - Average Rectified (Io)	3 A	3 A	3 A	3 A	2 A
Voltage - Forward (Vf) (Max) @ If	1.15 V @ 3 A	1.15 V @ 3 A	1.3 V @ 3 A	900 mV @ 3 A	940 mV @ 2 A
Speed	Standard Recovery >500ns	Standard Recovery >500ns	Fast Recovery ≤500ns	Fast Recovery ≤500ns	Fast Recovery ≤500ns
Reverse Recovery Time (trr)	-	-	150 ns	25 ns	30 ns
Current - Reverse Leakage @ Vr	10 µA @ 100 V	10 µA @ 100 V	5 µA @ 100 V	10 µA @ 100 V	2 µA @ 100 V
Package / Case	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
Operating Temperature - Junction	-	-65°C ~ 150°C	-65°C ~ 150°C	-55°C ~ 150°C	-60°C ~ 175°C
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

Primary Substitute: S3BB-13-F (Diodes Incorporated)

The S3BB-13-F is the direct functional equivalent of the S3BB-TP. It maintains identical electrical specifications: 100 V reverse voltage, 3 A average rectified current, 1.15 V forward voltage at 3 A, and standard recovery speed. The S3BB-13-F is in Active product status with 18,953 pieces in stock, ensuring long-term availability. Both parts share identical RoHS3 compliance and MSL ratings. This part is the preferred substitute for direct replacement in existing designs.

Secondary Substitute: ES3BB-13-F (Diodes Incorporated)

The ES3BB-13-F meets all mandatory electrical and mechanical criteria with 100 V reverse voltage and 3 A current rating in DO-214AA SMB package. This part offers improved performance characteristics: lower forward voltage (900 mV @ 3 A versus 1.15 V), faster recovery time (25 ns), and lower reverse leakage (10 µA). The ES3BB-13-F is in Active product status with 126,199 pieces in stock. Selection of this part is appropriate when improved efficiency and faster switching characteristics benefit the application circuit.

Tertiary Substitute: RS3BB-13-F (Diodes Incorporated)

The RS3BB-13-F satisfies all mandatory criteria with 100 V reverse voltage and 3 A current rating. This part features fast recovery characteristics (150 ns) and reduced reverse leakage (5 µA @ 100 V), providing a middle-ground performance option between standard and ultra-fast recovery devices. The RS3BB-13-F is in Active product status with 3,100 pieces in stock. This part is suitable for applications requiring improved reverse leakage performance without the lowest forward voltage characteristics.

Alternative Substitute: MURS210T3G (onsemi)

The MURS210T3G is rated for 100 V reverse voltage with 2 A average rectified current, which is lower than the S3BB-TP specification of 3 A. This part is in Last Time Buy status, indicating discontinued production. The MURS210T3G is suitable only for applications where the 2 A current rating is sufficient and where the lower current capacity does not compromise circuit performance. This part should not be selected for new designs or where the full 3 A rating is required.

Frequently Asked Questions (FAQ)

Q: Can the S3BB-13-F directly replace the S3BB-TP without circuit modification?

A: Yes. The S3BB-13-F is electrically and mechanically identical to the S3BB-TP. Both parts have 100 V reverse voltage, 3 A current rating, 1.15 V forward voltage at 3 A, standard recovery speed, and identical package specifications. No circuit modification is required.

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

A: Recovery speed refers to the time required for the diode to transition from conducting to blocking state. Standard recovery diodes (>500ns) are suitable for low-frequency applications and power supplies. Fast recovery diodes (≤500ns) are used in high-frequency switching applications where reduced switching losses are beneficial. The S3BB-TP uses standard recovery; ES3BB-13-F and RS3BB-13-F use fast recovery.

Q: Why does the ES3BB-13-F have lower forward voltage than the S3BB-TP?

A: Forward voltage variation is a normal characteristic difference between different manufacturers' diode designs. The ES3BB-13-F achieves 900 mV at 3 A compared to the S3BB-TP's 1.15 V. Lower forward voltage reduces power dissipation in the diode, which can improve overall circuit efficiency. Selection depends on whether the application circuit can tolerate the different voltage drop.

Q: Is the MURS210T3G a suitable replacement for the S3BB-TP?

A: The MURS210T3G is not a direct replacement. While it matches the 100 V reverse voltage and DO-214AA SMB package, its 2 A current rating is lower than the S3BB-TP's 3 A specification. The MURS210T3G is suitable only if the application circuit requires less than 2 A and the lower current capacity does not compromise performance. Additionally, the MURS210T3G is in Last Time Buy status, limiting future availability.

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

A: "Not For New Designs" indicates the S3BB-TP has reached end-of-life status and the manufacturer no longer recommends its use in new product designs. Existing inventory may remain available, but long-term supply is not guaranteed. For new designs and legacy system support, selection of an Active status substitute part is required.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All substitute parts listed (S3BB-13-F, RS3BB-13-F, ES3BB-13-F, and MURS210T3G) are ROHS3 Compliant, matching the S3BB-TP's compliance status. All parts also have MSL rating of 1 (Unlimited), indicating no moisture sensitivity restrictions during storage and handling.

Q: Can I use ES3BB-13-F in place of S3BB-13-F for improved performance?

A: Yes, with circuit verification. The ES3BB-13-F offers superior performance: lower forward voltage (900 mV versus 1.15 V), faster recovery time (25 ns versus unspecified), and identical current and voltage ratings. The lower forward voltage reduces power dissipation. However, the faster recovery speed may introduce different switching characteristics. Circuit simulation or testing is appropriate to confirm compatibility with specific application requirements.

Q: What is the difference between DO-214AA and SMB package designations?

A: DO-214AA and SMB refer to the same physical package. DO-214AA is the JEDEC standard designation, while SMB is the industry common name. Both designations describe an identical surface mount diode package with the same footprint, pin configuration, and mechanical dimensions.

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