RS3J-M3/9AT Equivalent & Substitute Parts

Part Overview

The RS3J-M3/9AT is a general-purpose rectifier diode manufactured by Vishay General Semiconductor - Diodes Division. This surface mount diode operates at 600 V DC reverse voltage with a 3 A average rectified current rating and is packaged in the DO-214AB (SMC) form factor. The device is classified as a fast recovery diode with a reverse recovery time of 250 ns and is suitable for standard rectification applications requiring moderate switching speeds.

The part is currently in active production status with ROHS3 compliance and unlimited moisture sensitivity level (MSL 1). Substitute parts are identified based on matching electrical specifications and mechanical compatibility within the DO-214AB package family, allowing for direct replacement in circuit designs where parametric equivalence is maintained.

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 @ 2.5 A	V
Speed Classification	Fast Recovery ≤ 500ns, > 200mA (Io)	—
Reverse Recovery Time (trr)	250	ns
Current - Reverse Leakage @ Vr	10	µA @ 600 V
Capacitance @ Vr, F	34	pF @ 4V, 1MHz
Package / Case	DO-214AB, SMC	—
Mounting Type	Surface Mount	—
Operating Temperature - Junction	-55 to 150	°C
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitute parts for the RS3J-M3/9AT are classified into two categories based on parametric equivalence and manufacturer designation:

Parametric Equivalent Parts maintain identical electrical specifications across all critical parameters: 600 V reverse voltage, 3 A average rectified current, 1.3 V forward voltage at 2.5 A, 250 ns reverse recovery time, and 10 µA reverse leakage current at 600 V. These parts differ only in packaging format (Cut Tape versus Tape & Reel) or are automotive-qualified variants of the same base product. Parametric equivalents include RS3J-E3/57T, RS3J-E3/9AT, and RS3JHE3_A/H.

Manufacturer Recommended Parts are cross-manufacturer alternatives that maintain the core electrical specifications (600 V, 3 A, DO-214AB package) but may exhibit variations in secondary parameters such as forward voltage, reverse recovery time, reverse leakage current, or operating temperature range. These parts are functionally compatible for general rectification applications where the primary voltage and current ratings are the controlling design constraints. Manufacturer recommended substitutes include ER3J-TP, ES3J, MURS360T3G, RS3J-13-F, S3J, S3J-13-F, and S3J-TP.

Key Parameters Determining Substitution:

Voltage - DC Reverse (Vr) (Max): 600 V
Current - Average Rectified (Io): 3 A
Package / Case: DO-214AB, SMC
Mounting Type: Surface Mount
RoHS Status: ROHS3 Compliant

Parameter Comparison

Manufacturer Part Number	Manufacturer	Vr (Max) [V]	Io [A]	Vf (Max) @ If [V]	Speed	trr [ns]	Ir @ Vr [µA]	Package	Packaging Format	Tj Range [°C]	Qualification
RS3J-M3/9AT	Vishay	600	3	1.3 @ 2.5 A	Fast Recovery ≤ 500ns	250	10 @ 600 V	DO-214AB, SMC	Tape & Reel (TR)	-55 to 150	Standard
RS3J-E3/57T	Vishay	600	3	1.3 @ 2.5 A	Fast Recovery ≤ 500ns	250	10 @ 600 V	DO-214AB, SMC	Cut Tape (CT)	-55 to 150	Standard
RS3J-E3/9AT	Vishay	600	3	1.3 @ 2.5 A	Fast Recovery ≤ 500ns	250	10 @ 600 V	DO-214AB, SMC	Tape & Reel (TR)	-55 to 150	Standard
RS3JHE3_A/H	Vishay	600	3	1.3 @ 2.5 A	Fast Recovery ≤ 500ns	250	10 @ 600 V	DO-214AB, SMC	Tape & Reel (TR)	-55 to 150	AEC-Q101 Automotive
ER3J-TP	Micro Commercial Co	600	3	1.7 @ 3 A	Fast Recovery ≤ 500ns	35	5 @ 600 V	DO-214AB, SMC	Tape & Reel (TR)	-50 to 175	Standard
ES3J	Good-Ark Semiconductor	600	3	1.7 @ 3 A	Fast Recovery ≤ 500ns	35	10 @ 600 V	DO-214AB, SMC	Cut Tape (CT) & Digi-Reel®	-55 to 150	Standard
MURS360T3G	onsemi	600	3	1.25 @ 3 A	Fast Recovery ≤ 500ns	75	10 @ 600 V	DO-214AB, SMC	Cut Tape (CT) & Digi-Reel®	-65 to 175	Standard
RS3J-13-F	Diodes Incorporated	600	3	1.3 @ 3 A	Fast Recovery ≤ 500ns	250	5 @ 600 V	DO-214AB, SMC	Tape & Reel (TR)	-65 to 150	Standard
S3J	Diotec Semiconductor	600	3	1.15 @ 3 A	Standard Recovery >500ns	1500	5 @ 600 V	DO-214AB, SMC	Cut Tape (CT) & Digi-Reel®	-50 to 150	Standard
S3J-13-F	Diodes Incorporated	600	3	1.15 @ 3 A	Standard Recovery >500ns	—	10 @ 600 V	DO-214AB, SMC	Tape & Reel (TR)	-65 to 150	Standard
S3J-TP	Micro Commercial Co	600	3	1.2 @ 3 A	Standard Recovery >500ns	—	10 @ 600 V	DO-214AB, SMC	Tape & Reel (TR)	-55 to 150	Standard

Engineering Selection Recommendations

Parametric Equivalent Selection (Direct Replacement):

RS3J-E3/57T and RS3J-E3/9AT are parametric equivalents of the RS3J-M3/9AT, differing only in packaging format. RS3J-E3/57T is supplied in Cut Tape format, while RS3J-E3/9AT is supplied in Tape & Reel format identical to the main part. Both maintain identical electrical characteristics and are suitable for direct substitution where packaging logistics permit. RS3JHE3_A/H is an automotive-qualified variant (AEC-Q101) with identical electrical specifications and is appropriate for applications requiring automotive-grade components.

Fast Recovery Diode Alternatives:

ER3J-TP (Micro Commercial Co) and ES3J (Good-Ark Semiconductor) are fast recovery diodes with 35 ns reverse recovery time, offering improved switching performance compared to the 250 ns specification of the main part. These devices maintain 600 V and 3 A ratings with forward voltage specifications of 1.7 V at 3 A. MURS360T3G (onsemi) provides the lowest forward voltage (1.25 V @ 3 A) among fast recovery alternatives with 75 ns reverse recovery time and extended operating temperature range (-65 to 175°C).

Standard Recovery Diode Alternatives:

S3J (Diotec Semiconductor), S3J-13-F (Diodes Incorporated), and S3J-TP (Micro Commercial Co) are standard recovery diodes with recovery times exceeding 500 ns. These devices exhibit lower forward voltages (1.15 to 1.2 V @ 3 A) and are suitable for applications where switching speed is not a primary constraint. S3J-13-F and S3J-TP provide extended lower operating temperature limits (-65°C and -55°C respectively).

Compliance and Certification:

All substitute parts maintain ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity rating, ensuring compatibility with standard manufacturing and storage protocols. RS3JHE3_A/H carries AEC-Q101 automotive qualification for applications requiring automotive-grade reliability standards.

Frequently Asked Questions (FAQ)

Q: Can RS3J-E3/57T replace RS3J-M3/9AT directly in production?

A: Yes. RS3J-E3/57T is a parametric equivalent with identical electrical specifications. The only difference is packaging format: RS3J-E3/57T is supplied in Cut Tape (CT) format while RS3J-M3/9AT is supplied in Tape & Reel (TR) format. Verify that your assembly equipment accommodates the Cut Tape format before implementation.

Q: What is the difference between fast recovery and standard recovery diodes in this product family?

A: Fast recovery diodes (RS3J-M3/9AT, ER3J-TP, ES3J, MURS360T3G) have reverse recovery times ≤ 500 ns, enabling faster switching transitions suitable for high-frequency applications. Standard recovery diodes (S3J, S3J-13-F, S3J-TP) have reverse recovery times > 500 ns and are appropriate for lower-frequency rectification where switching speed is not critical. Standard recovery devices typically exhibit lower forward voltage drop.

Q: Is RS3JHE3_A/H suitable for automotive applications?

A: Yes. RS3JHE3_A/H carries AEC-Q101 automotive qualification and maintains identical electrical specifications to the standard RS3J-M3/9AT. This part is appropriate for automotive-grade applications requiring qualified component documentation.

Q: What are the forward voltage differences among substitute parts?

A: Forward voltage varies across the substitute family: RS3J-M3/9AT and RS3J-13-F specify 1.3 V at their respective test currents; ER3J-TP and ES3J specify 1.7 V @ 3 A; MURS360T3G specifies 1.25 V @ 3 A; S3J, S3J-13-F, and S3J-TP specify 1.15 to 1.2 V @ 3 A. Forward voltage affects power dissipation and thermal performance. Select based on your circuit's thermal budget and efficiency requirements.

Q: Can I use MURS360T3G in place of RS3J-M3/9AT?

A: Yes, for applications where the primary design constraints are 600 V reverse voltage and 3 A current rating. MURS360T3G maintains these specifications and is packaged in DO-214AB (SMC). However, MURS360T3G has a 75 ns reverse recovery time compared to 250 ns for RS3J-M3/9AT, and a lower forward voltage (1.25 V @ 3 A). Verify that these parameter differences do not conflict with your circuit design before substitution.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All substitute parts listed maintain ROHS3 compliance status, ensuring compatibility with standard manufacturing and environmental regulations.

Q: What is the significance of operating temperature range differences?

A: Operating temperature range defines the junction temperature limits for reliable device operation. RS3J-M3/9AT operates from -55°C to 150°C. Some alternatives extend this range: MURS360T3G and ER3J-TP extend to 175°C upper limit; RS3J-13-F and S3J-13-F extend to -65°C lower limit. Select based on your application's thermal environment and thermal management capabilities.

Q: Can I substitute S3J for RS3J-M3/9AT in a high-frequency switching application?

A: No. S3J is a standard recovery diode with 1.5 µs reverse recovery time, unsuitable for high-frequency switching applications. RS3J-M3/9AT is a fast recovery device with 250 ns recovery time. For high-frequency applications, select from fast recovery alternatives: ER3J-TP, ES3J, or MURS360T3G.

Q: What packaging formats are available for the RS3J base product?

A: The RS3J base product is available in multiple packaging formats: Tape & Reel (TR) for automated assembly, and Cut Tape (CT) for manual or semi-automated processes. RS3J-M3/9AT is supplied in Tape & Reel format. RS3J-E3/57T is the equivalent in Cut Tape format.

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