S3DB-TP Equivalent & Substitute Parts

Part Overview

The S3DB-TP is a general-purpose rectifier diode manufactured by Micro Commercial Co, rated for 200 V DC reverse voltage and 3 A average rectified current in a DO-214AA (SMB) surface mount package. This part is classified as "Not For New Designs," indicating it has reached end-of-life status. Identifying equivalent and substitute components is necessary for ongoing maintenance, repair, and legacy system support where the original part is no longer available or procurement is limited.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	200	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 @ 200 V
Mounting Type	Surface Mount	-
Package / Case	DO-214AA, SMB	-
RoHS Status	ROHS3 Compliant	-
Moisture Sensitivity Level (MSL)	1 (Unlimited)	-

Substitute Part Grouping Explanation

Substitution of the S3DB-TP is determined by the following critical parameters:

Voltage Rating: All substitute parts must maintain a DC reverse voltage rating of 200 V or higher to ensure safe operation in the original circuit.

Current Rating: The average rectified current (Io) must be equal to or greater than 3 A. Parts with lower current ratings (1.5 A, 2 A) are not direct substitutes but may be considered for applications with reduced current requirements.

Package Type: The S3DB-TP uses DO-214AA (SMB) surface mount packaging. Substitutes with identical or compatible package designations ensure mechanical and thermal compatibility on the PCB.

Recovery Speed: The S3DB-TP operates with standard recovery characteristics (>500ns). Substitutes with faster recovery (≤500ns) are electrically compatible and offer improved performance characteristics.

Forward Voltage: Forward voltage drop at rated current affects power dissipation and circuit efficiency. Variations within ±0.15 V are acceptable for general-purpose rectification applications.

Compliance: All substitute parts must maintain ROHS3 compliance and MSL 1 rating to meet environmental and handling requirements.

Parameter Comparison

Part Number	Manufacturer	Vr (Max)	Io	Vf @ If	Speed	Package	Product Status	Inventory
S3DB-TP	Micro Commercial Co	200 V	3 A	1.15 V @ 3 A	Standard >500ns	DO-214AA, SMB	Not For New Designs	6833 Pcs
S3DB-13-F	Diodes Incorporated	200 V	3 A	1.15 V @ 3 A	Standard >500ns	DO-214AA, SMB	Active	70100 Pcs
ES3DB-13-F	Diodes Incorporated	200 V	3 A	0.9 V @ 3 A	Fast ≤500ns	DO-214AA, SMB	Active	32100 Pcs
RS3DB-13-F	Diodes Incorporated	200 V	3 A	1.3 V @ 3 A	Fast ≤500ns	DO-214AB, SMC	Active	1636 Pcs
S2D	Diotec Semiconductor	200 V	2 A	1.15 V @ 2 A	Standard >500ns	DO-214AA, SMB	Active	3049 Pcs
STTH1R02U	STMicroelectronics	200 V	1.5 A	1 V @ 1.5 A	Fast ≤500ns	DO-214AA, SMB	Active	16786 Pcs
STTH2R02U	STMicroelectronics	200 V	2 A	1 V @ 2 A	Fast ≤500ns	DO-214AA, SMB	Active	43020 Pcs
STTH2R02UY	STMicroelectronics	200 V	2 A	1 V @ 2 A	Fast ≤500ns	DO-214AA, SMB	Active	60300 Pcs
STTH4R02U	STMicroelectronics	200 V	4 A	1.05 V @ 4 A	Fast ≤500ns	DO-214AA, SMB	Active	20100 Pcs
STTH4R02UY	STMicroelectronics	200 V	4 A	1.05 V @ 4 A	Fast ≤500ns	DO-214AA, SMB	Active	109754 Pcs

Engineering Selection Recommendations

Direct Equivalent (Identical Electrical and Mechanical Specifications):

The S3DB-13-F from Diodes Incorporated is the primary direct equivalent. It matches the S3DB-TP in voltage rating (200 V), current rating (3 A), forward voltage (1.15 V @ 3 A), recovery speed (standard >500ns), and package type (DO-214AA, SMB). The S3DB-13-F is in Active product status with high inventory availability (70100 Pcs), making it the preferred replacement for direct substitution in legacy designs.

Performance-Enhanced Alternatives (Same Voltage and Current, Improved Characteristics):

The ES3DB-13-F from Diodes Incorporated provides identical voltage (200 V) and current (3 A) ratings with improved performance characteristics: lower forward voltage (0.9 V @ 3 A versus 1.15 V) and faster recovery speed (≤500ns). This part is suitable for applications where reduced power dissipation and faster switching are beneficial. The ES3DB-13-F maintains DO-214AA (SMB) packaging and is in Active status with substantial inventory (32100 Pcs).

Current-Reduced Alternatives (Lower Current Rating):

The S2D from Diotec Semiconductor, STTH1R02U, STTH2R02U, and STTH2R02UY are suitable only for applications where the circuit current requirement is 2 A or less. These parts maintain the 200 V voltage rating and DO-214AA (SMB) package but have reduced current capacity. Selection of these parts requires circuit analysis to confirm that the lower current rating is acceptable.

Current-Increased Alternatives (Higher Current Rating):

The STTH4R02U and STTH4R02UY from STMicroelectronics provide 4 A current capacity, exceeding the S3DB-TP specification. These parts are suitable for applications requiring higher current handling or for designs with thermal margin considerations. Both maintain 200 V voltage rating and DO-214AA (SMB) packaging.

Package Consideration:

The RS3DB-13-F uses DO-214AB (SMC) packaging, which differs from the S3DB-TP's DO-214AA (SMB) package. This part is not mechanically compatible without PCB redesign and is not recommended for direct substitution.

Compliance and Availability:

All recommended substitute parts are ROHS3 compliant and maintain MSL 1 rating. All substitute parts listed are in Active product status, ensuring long-term availability and supply chain stability compared to the S3DB-TP's "Not For New Designs" status.

Frequently Asked Questions (FAQ)

Q: Can the S3DB-13-F directly replace the S3DB-TP without circuit modification?

A: Yes. The S3DB-13-F is electrically and mechanically identical to the S3DB-TP. Both parts have 200 V voltage rating, 3 A current rating, 1.15 V forward voltage at 3 A, standard recovery speed, and DO-214AA (SMB) packaging. No circuit modification is required.

Q: What is the difference between the S3DB-13-F and ES3DB-13-F?

A: Both parts have identical voltage (200 V) and current (3 A) ratings and use the same DO-214AA (SMB) package. The ES3DB-13-F has lower forward voltage (0.9 V versus 1.15 V at 3 A) and faster recovery speed (≤500ns versus >500ns). The ES3DB-13-F is suitable for applications where reduced power dissipation is desired.

Q: Can I use the STTH2R02U or STTH2R02UY as a substitute for the S3DB-TP?

A: These parts have a 2 A current rating, which is lower than the S3DB-TP's 3 A rating. They are suitable only if the circuit current requirement is confirmed to be 2 A or less. The voltage rating (200 V) and package type (DO-214AA, SMB) are compatible.

Q: Why does the RS3DB-13-F have a different package designation?

A: The RS3DB-13-F uses DO-214AB (SMC) packaging, while the S3DB-TP uses DO-214AA (SMB) packaging. These are different physical packages with different footprints. The RS3DB-13-F is not mechanically compatible without PCB redesign.

Q: Are all substitute parts RoHS compliant?

A: Yes. All substitute parts listed are ROHS3 compliant and maintain MSL 1 (Unlimited) moisture sensitivity level, meeting environmental and handling requirements equivalent to the S3DB-TP.

Q: What is the advantage of using STTH4R02U or STTH4R02UY over the S3DB-13-F?

A: The STTH4R02U and STTH4R02UY provide 4 A current capacity, offering additional thermal margin and current headroom compared to the 3 A S3DB-TP. These parts are suitable for applications with higher current demands or where design margin is a consideration. Both maintain 200 V voltage rating and DO-214AA (SMB) packaging.

Q: Is the S2D from Diotec Semiconductor a suitable substitute?

A: The S2D is suitable only for applications where the circuit current requirement is 2 A or less. It maintains the 200 V voltage rating and DO-214AA (SMB) package but has reduced current capacity. Circuit analysis is required to confirm compatibility.

Q: What is the difference between STTH2R02U and STTH2R02UY?

A: Both parts have identical electrical specifications (200 V, 2 A, 1 V forward voltage, fast recovery). The STTH2R02UY is designated as Automotive grade (Series Q) and is suitable for automotive applications. The STTH2R02U is the standard industrial version. Both use DO-214AA (SMB) packaging.

Q: Can I use a higher current-rated part like STTH4R02U in place of the S3DB-TP?

A: Yes. The STTH4R02U has a higher current rating (4 A) than the S3DB-TP (3 A), making it electrically compatible. The 200 V voltage rating and DO-214AA (SMB) package are identical. Higher current-rated parts provide additional design margin and are suitable for direct substitution.

Q: What inventory levels are available for substitute parts?

A: S3DB-13-F has 70100 Pcs available. ES3DB-13-F has 32100 Pcs. STTH4R02UY has 109754 Pcs. STTH2R02UY has 60300 Pcs. STTH2R02U has 43020 Pcs. STTH1R02U has 16786 Pcs. STTH4R02U has 20100 Pcs. S2D has 3049 Pcs. RS3DB-13-F has 1636 Pcs. Inventory levels support both immediate and long-term procurement requirements.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message