Equivalent & Substitute Parts for S3JB-13

Part Overview

The S3JB-13 is a general-purpose rectifier diode manufactured by Diodes Incorporated, rated for 600 V DC reverse voltage and 3 A average rectified current in a surface mount SMB (DO-214AA) package. This part is discontinued at DiGi Electronics, necessitating identification of equivalent and substitute components for ongoing design support and procurement.

The S3JB-13 operates across a junction temperature range of -65°C to 150°C and features standard recovery characteristics with forward voltage of 1.15 V at 3 A. Due to its discontinued status, equivalent parts with matching or superior electrical characteristics are required for design continuity and component availability.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	600	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 @ 600 V
Capacitance @ Vr, F	40	pF @ 4V, 1MHz
Package / Case	DO-214AA, SMB	-
Mounting Type	Surface Mount	-
Operating Temperature - Junction	-65 to 150	°C
Technology	Standard	-

Substitute Part Grouping Explanation

Substitution of the S3JB-13 is determined by the following critical parameters:

Mandatory Matching Parameters:

Voltage - DC Reverse (Vr) (Max): 600 V minimum
Current - Average Rectified (Io): 3 A minimum
Package / Case: DO-214AA, SMB (surface mount compatibility)
Mounting Type: Surface Mount

Acceptable Variation Parameters:

Voltage - Forward (Vf): May be equal to or lower than 1.15 V @ 3 A
Speed: Standard or Fast Recovery acceptable
Current - Reverse Leakage: May be equal to or lower than 10 µA @ 600 V
Operating Temperature Range: May extend beyond -65°C to 150°C
RoHS Status: Active parts preferred; RoHS3 compliance required for new designs

Substitute parts are grouped into two categories:

Category 1 - Direct Equivalents (Identical Electrical Specifications): Parts matching all electrical parameters of the S3JB-13, differing only in packaging format (Tape & Reel vs. bulk) or RoHS compliance status.

Category 2 - Functional Substitutes (Enhanced or Equivalent Performance): Parts meeting or exceeding the 600 V / 3 A rating with improved characteristics such as lower forward voltage, faster recovery time, or lower reverse leakage current. These parts are pin-compatible and functionally interchangeable in the DO-214AA SMB package.

Parameter Comparison

Part Number	Manufacturer	Vr (Max) [V]	Io [A]	Vf (Max) [V]	Speed	Ir @ Vr [µA]	Package	Product Status	RoHS Status
S3JB-13	Diodes Incorporated	600	3	1.15 @ 3A	Standard >500ns	10 @ 600V	DO-214AA, SMB	Discontinued	Non-compliant
S3JB-13-F	Diodes Incorporated	600	3	1.15 @ 3A	Standard >500ns	10 @ 600V	DO-214AA, SMB	Active	ROHS3 Compliant
S3JB-TP	Micro Commercial Co	600	3	1.15 @ 3A	Standard >500ns	10 @ 600V	DO-214AA, SMB	Active	ROHS3 Compliant
ER3JB-TP	Micro Commercial Co	600	3	1.7 @ 3A	Fast ≤500ns	5 @ 600V	DO-214AA, SMB	Active	ROHS3 Compliant
MURS360BT3G	onsemi	600	3	1.25 @ 3A	Fast ≤500ns	3 @ 600V	DO-214AA, SMB	Active	ROHS3 Compliant
NRVUS360VBT3G	onsemi	600	3	1.25 @ 3A	Fast ≤500ns	3 @ 600V	DO-214AA, SMB	Not For New Designs	ROHS3 Compliant
MURS360S-E3/5BT	Vishay General Semiconductor	600	1.5	1.45 @ 3A	Fast ≤500ns	5 @ 600V	DO-214AA, SMB	Active	ROHS3 Compliant
STTH1R06U	STMicroelectronics	600	1	1.7 @ 1A	Fast ≤500ns	1 @ 600V	DO-214AA, SMB	Active	ROHS3 Compliant
STTH2L06U	STMicroelectronics	600	2	1.3 @ 2A	Fast ≤500ns	2 @ 600V	DO-214AA, SMB	Active	ROHS3 Compliant
STTH2R06U	STMicroelectronics	600	2	1.7 @ 2A	Fast ≤500ns	2 @ 600V	DO-214AA, SMB	Active	ROHS3 Compliant
STTH1L06U	STMicroelectronics	600	1	1.3 @ 1A	Fast ≤500ns	1 @ 600V	DO-214AA, SMB	Active	ROHS3 Compliant

Engineering Selection Recommendations

Primary Recommendation - Direct Equivalent:

The S3JB-13-F (Diodes Incorporated) is the direct equivalent replacement for the discontinued S3JB-13. This part maintains identical electrical specifications including 600 V reverse voltage, 3 A average rectified current, 1.15 V forward voltage at 3 A, and standard recovery characteristics. The S3JB-13-F is currently active with ROHS3 compliance and represents the lowest-risk substitution path. Inventory availability is substantial at 78,400 pieces.

Secondary Recommendation - Functional Equivalent:

The S3JB-TP (Micro Commercial Co) provides identical electrical performance to the S3JB-13 with active product status and ROHS3 compliance. This part is suitable for direct substitution with 28,880 pieces in stock.

Enhanced Performance Alternative:

The MURS360BT3G (onsemi) offers improved electrical characteristics over the S3JB-13, including lower forward voltage (1.25 V vs. 1.15 V at 3 A), faster recovery time (75 ns), and significantly lower reverse leakage current (3 µA vs. 10 µA at 600 V). This part is active with ROHS3 compliance and 35,100 pieces available. The MURS360BT3G is suitable for applications where improved thermal performance or lower leakage is beneficial.

Current-Limited Alternatives:

Parts such as STTH1R06U, STTH2L06U, and STTH2R06U from STMicroelectronics are suitable only for applications where the required current rating is 1 A or 2 A respectively. These parts do not meet the 3 A requirement of the S3JB-13 and are not recommended as direct substitutes.

Not Recommended:

The NRVUS360VBT3G (onsemi) carries a "Not For New Designs" status and should not be selected for new applications despite meeting electrical specifications.

The MURS360S-E3/5BT (Vishay) is rated for only 1.5 A average rectified current and does not meet the 3 A requirement of the S3JB-13.

Frequently Asked Questions (FAQ)

Q: Can the S3JB-13-F be used as a direct replacement for the S3JB-13?

A: Yes. The S3JB-13-F is electrically and mechanically identical to the S3JB-13, differing only in packaging format (Tape & Reel) and RoHS compliance status. Both parts feature 600 V reverse voltage, 3 A average rectified current, 1.15 V forward voltage at 3 A, and DO-214AA SMB package. The S3JB-13-F is the recommended replacement.

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

A: Recovery speed refers to the reverse recovery time (trr), which is the time required for a diode to switch from forward conduction to reverse blocking. Standard recovery diodes have trr >500 ns, while fast recovery diodes have trr ≤500 ns. Fast recovery diodes exhibit lower reverse leakage current and reduced switching losses, making them suitable for high-frequency applications. Both types are functionally compatible in the DO-214AA SMB package.

Q: Can I use a lower-current diode such as STTH2L06U (2 A) instead of the S3JB-13 (3 A)?

A: No. The STTH2L06U is rated for 2 A average rectified current, which is below the 3 A requirement of the S3JB-13. Using an undersized component creates risk of thermal stress and potential failure under rated load conditions. The current rating must equal or exceed 3 A.

Q: Are all substitute parts compatible with the same PCB footprint?

A: Yes. All substitute parts listed use the DO-214AA SMB package, which provides identical mechanical dimensions and pin configuration. All parts are surface mount compatible with existing S3JB-13 PCB layouts without modification.

Q: What does ROHS3 compliance mean?

A: ROHS3 compliance indicates conformance to the Restriction of Hazardous Substances Directive 2011/65/EU, which restricts the use of specific hazardous materials including lead, cadmium, and mercury in electrical and electronic equipment. ROHS3-compliant parts are required for most commercial and industrial applications, particularly in regulated markets.

Q: Why does the MURS360BT3G have lower reverse leakage current (3 µA) compared to the S3JB-13 (10 µA)?

A: Lower reverse leakage current is a characteristic of fast recovery diode technology. The MURS360BT3G uses fast recovery design with 75 ns reverse recovery time, which inherently produces lower leakage current at rated voltage. This is an improvement over the standard recovery design of the S3JB-13 and does not affect functional compatibility.

Q: Can I substitute the S3JB-13 with MURS360S-E3/5BT?

A: No. The MURS360S-E3/5BT is rated for 1.5 A average rectified current, which is insufficient for the 3 A requirement of the S3JB-13. This part is not a suitable substitute.

Q: What is the operating temperature range difference between S3JB-13 and MURS360BT3G?

A: The S3JB-13 operates from -65°C to 150°C junction temperature, while the MURS360BT3G operates from -65°C to 175°C. The MURS360BT3G provides an extended upper temperature limit of 25°C, which is beneficial for applications operating at elevated ambient temperatures or with high power dissipation.

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