Equivalent & Substitute Parts for RS3J-13

Part Overview

The RS3J-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 SMC (DO-214AB) package. This part is classified as discontinued at DiGi Electronics, making equivalent and substitute parts necessary for ongoing design support and procurement.

The RS3J-13 operates across a junction temperature range of -65°C to 150°C and features fast recovery characteristics with a reverse recovery time of 250 ns. It is RoHS non-compliant and carries an MSL rating of 1 (Unlimited).

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	600	V
Current - Average Rectified (Io)	3	A
Voltage - Forward (Vf) (Max) @ If	1.3 V @ 3 A	V
Speed Classification	Fast Recovery ≤ 500ns, > 200mA (Io)	—
Reverse Recovery Time (trr)	250	ns
Current - Reverse Leakage @ Vr	5	µA @ 600 V
Mounting Type	Surface Mount	—
Package / Case	DO-214AB, SMC	—
Operating Temperature - Junction	-65 to 150	°C

Substitute Part Grouping Explanation

Substitution of the RS3J-13 is determined by the following critical parameters:

Mandatory Matching Parameters:

Voltage - DC Reverse (Vr) (Max): 600 V
Current - Average Rectified (Io): 3 A (or higher)
Package / Case: DO-214AB, SMC
Mounting Type: Surface Mount

Performance Considerations:

Forward voltage (Vf) at rated current
Reverse recovery time (trr) and speed classification
Reverse leakage current
Operating temperature range

Substitute parts are grouped into two categories:

Category 1: Direct Parametric Equivalents (600 V, 3 A, Fast Recovery) These parts maintain the same voltage, current, and fast recovery speed characteristics as the RS3J-13.

Category 2: Functional Alternatives (600 V, 3 A, Standard Recovery) These parts meet the voltage and current requirements but feature standard recovery characteristics (trr > 500 ns), suitable for applications where switching speed is not critical.

Category 3: Higher Current Rating (600 V, 6 A) These parts exceed the current rating and are suitable for designs requiring additional current margin.

Parameter Comparison

Part Number	Manufacturer	Vr (Max) [V]	Io [A]	Vf (Max) [V]	Speed	trr [ns]	Ir @ Vr [µA]	Tj Range [°C]	RoHS Status	Product Status
RS3J-13	Diodes Incorporated	600	3	1.3 @ 3A	Fast Recovery ≤ 500ns	250	5 @ 600V	-65 to 150	Non-compliant	Discontinued
RS3J-13-F	Diodes Incorporated	600	3	1.3 @ 3A	Fast Recovery ≤ 500ns	250	5 @ 600V	-65 to 150	ROHS3 Compliant	Active
ER3J-TP	Micro Commercial Co	600	3	1.7 @ 3A	Fast Recovery ≤ 500ns	35	5 @ 600V	-50 to 175	ROHS3 Compliant	Active
ES3J	Good-Ark Semiconductor	600	3	1.7 @ 3A	Fast Recovery ≤ 500ns	35	10 @ 600V	-55 to 150	ROHS3 Compliant	Active
MURS360T3G	onsemi	600	3	1.25 @ 3A	Fast Recovery ≤ 500ns	75	10 @ 600V	-65 to 175	ROHS3 Compliant	Active
S3J	Diotec Semiconductor	600	3	1.15 @ 3A	Standard Recovery > 500ns	1500	5 @ 600V	-50 to 150	ROHS3 Compliant	Active
S3J-E3/57T	Vishay General Semiconductor - Diodes Division	600	3	1.15 @ 2.5A	Standard Recovery > 500ns	2500	10 @ 600V	-55 to 150	ROHS3 Compliant	Active
S3J-TP	Micro Commercial Co	600	3	1.2 @ 3A	Standard Recovery > 500ns	—	10 @ 600V	-55 to 150	ROHS3 Compliant	Active
SMLJ60S6-TP	Micro Commercial Co	600	6	1.0 @ 6A	Standard Recovery > 500ns	—	5 @ 600V	-55 to 150	ROHS3 Compliant	Active
STTH2R06S	STMicroelectronics	600	2	1.7 @ 2A	Fast Recovery ≤ 500ns	50	2 @ 600V	-40 to 175	ROHS3 Compliant	Active
STTH3L06S	STMicroelectronics	600	3	1.3 @ 3A	Fast Recovery ≤ 500ns	85	3 @ 600V	—	ROHS3 Compliant	Active

Engineering Selection Recommendations

Primary Recommendation: RS3J-13-F

The RS3J-13-F is the direct equivalent of the RS3J-13, manufactured by Diodes Incorporated. It maintains identical electrical specifications including 600 V reverse voltage, 3 A average rectified current, 1.3 V forward voltage at 3 A, and 250 ns reverse recovery time. The RS3J-13-F differs only in packaging format (Tape & Reel) and compliance status (ROHS3 Compliant). This part is active and carries 17,400 units in stock, providing reliable procurement availability.

Fast Recovery Alternatives (≤ 500ns trr):

For applications requiring fast recovery characteristics equivalent to the RS3J-13:

MURS360T3G (onsemi): Maintains 600 V, 3 A ratings with 1.25 V forward voltage and 75 ns reverse recovery time. Operating temperature range extends to 175°C. Highest inventory availability at 105,100 units.
ER3J-TP (Micro Commercial Co): Provides 600 V, 3 A with 35 ns reverse recovery time and extended temperature range to 175°C. Forward voltage is 1.7 V at 3 A.
ES3J (Good-Ark Semiconductor): Delivers 600 V, 3 A with 35 ns reverse recovery time. Highest inventory among fast recovery alternatives at 23,710 units.
STTH3L06S (STMicroelectronics): Matches the RS3J-13 forward voltage specification (1.3 V @ 3A) with 85 ns reverse recovery time and ROHS3 compliance.

Standard Recovery Alternatives (> 500ns trr):

For applications where switching speed is not critical:

S3J (Diotec Semiconductor): Provides 600 V, 3 A with lowest forward voltage (1.15 V @ 3A) and standard recovery characteristics.
S3J-TP (Micro Commercial Co): Offers 600 V, 3 A with 1.2 V forward voltage and standard recovery. Highest inventory among standard recovery options at 39,720 units.
S3J-E3/57T (Vishay General Semiconductor - Diodes Division): Delivers 600 V, 3 A with 1.15 V forward voltage at 2.5 A and 2.5 µs reverse recovery time.

Higher Current Alternative:

SMLJ60S6-TP (Micro Commercial Co): Rated for 600 V, 6 A with 1.0 V forward voltage at 6 A. Suitable for designs requiring additional current margin.

Lower Current Alternative:

STTH2R06S (STMicroelectronics): Rated for 600 V, 2 A with fast recovery (50 ns). Use only when circuit current requirements are confirmed below 3 A.

All recommended substitutes are ROHS3 compliant and carry active product status, ensuring long-term availability and regulatory compliance.

Frequently Asked Questions (FAQ)

Q: Can RS3J-13-F be used as a direct replacement for RS3J-13?

A: Yes. The RS3J-13-F is electrically identical to the RS3J-13 across all critical parameters: 600 V reverse voltage, 3 A average rectified current, 1.3 V forward voltage at 3 A, and 250 ns reverse recovery time. The only differences are packaging format (Tape & Reel versus bulk) and RoHS compliance status (ROHS3 Compliant versus non-compliant). Both use the DO-214AB SMC package for surface mount applications.

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

A: Fast recovery diodes have reverse recovery times ≤ 500 ns, while standard recovery diodes exceed 500 ns. The RS3J-13 features fast recovery at 250 ns. Fast recovery diodes switch more quickly when transitioning from forward to reverse bias, reducing switching losses in high-frequency applications. Standard recovery alternatives (S3J, S3J-TP, S3J-E3/57T) are suitable for lower-frequency applications where switching speed is not critical.

Q: Can I use STTH2R06S as a substitute for RS3J-13?

A: STTH2R06S is not a direct substitute. While it maintains the 600 V reverse voltage and DO-214AB SMC package, it is rated for only 2 A average rectified current compared to the RS3J-13's 3 A rating. Use STTH2R06S only if your circuit current requirement is confirmed to be 2 A or less.

Q: Can I use SMLJ60S6-TP as a substitute for RS3J-13?

A: SMLJ60S6-TP is a functional alternative, not a direct substitute. It maintains the 600 V reverse voltage and DO-214AB SMC package but is rated for 6 A average rectified current. This higher current rating provides additional design margin but may introduce unnecessary cost and size considerations. Use SMLJ60S6-TP only when your circuit requires current capacity exceeding 3 A.

Q: What is the significance of forward voltage (Vf) differences among substitutes?

A: Forward voltage affects power dissipation and voltage drop across the diode during conduction. The RS3J-13 specifies 1.3 V at 3 A. Substitutes range from 1.0 V (SMLJ60S6-TP at 6 A) to 1.7 V (ER3J-TP and ES3J at 3 A). Lower forward voltage reduces power loss and heat generation. Select substitutes based on your circuit's thermal and efficiency requirements.

Q: Are all substitute parts RoHS compliant?

A: All recommended substitute parts carry ROHS3 compliance status. The original RS3J-13 is RoHS non-compliant. If your application requires RoHS compliance, select from the active substitute parts listed, all of which meet ROHS3 standards.

Q: What is the difference between Cut Tape (CT) and Tape & Reel (TR) packaging?

A: Both are surface mount packaging formats for the same component. Cut Tape (CT) & Digi-Reel® provides smaller quantities suitable for prototyping and low-volume production. Tape & Reel (TR) provides components on continuous tape for automated assembly equipment, suitable for high-volume manufacturing. Electrical specifications remain identical regardless of packaging format.

Q: Can I substitute based on operating temperature range alone?

A: No. Operating temperature range is one consideration but not the primary substitution criterion. The critical parameters are voltage rating (600 V), current rating (3 A or higher), package type (DO-214AB SMC), and mounting type (Surface Mount). Temperature range should be verified to ensure it meets your application's thermal environment, but it does not override voltage and current requirements.

Q: Which substitute offers the best inventory availability?

A: MURS360T3G (onsemi) offers the highest inventory at 105,100 units in stock. For standard recovery alternatives, S3J-TP (Micro Commercial Co) provides 39,720 units. Both are active products with reliable long-term availability.

Q: What does "Reverse Recovery Time (trr)" mean in practical terms?

A: Reverse recovery time is the interval required for a diode to stop conducting when the applied voltage reverses from forward to reverse bias. Shorter trr values (fast recovery) reduce switching losses and electromagnetic interference in switching applications. The RS3J-13 specifies 250 ns. Substitutes range from 35 ns (ER3J-TP, ES3J) to 2500 ns (S3J-E3/57T). Select based on your circuit's switching frequency and EMI requirements.

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