SMLJ60S05-TP Equivalent & Substitute Parts

Part Overview

The SMLJ60S05-TP is a general-purpose rectifier diode manufactured by Micro Commercial Co, rated for 50 V DC reverse voltage and 6 A average rectified current in a surface mount SMC (DO-214AB) package. This component is classified as "Not For New Designs," indicating it has been superseded in the manufacturer's product line. Identifying equivalent and substitute parts is necessary for ongoing maintenance, repair, and legacy system support where the original part number may be unavailable or discontinued.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	50	V
Current - Average Rectified (Io)	6	A
Voltage - Forward (Vf) (Max) @ If	1 V @ 6 A	V @ A
Speed	Standard Recovery >500ns, > 200mA (Io)	-
Current - Reverse Leakage @ Vr	5	µA @ 50 V
Package / Case	DO-214AB, SMC	-
Mounting Type	Surface Mount	-
Operating Temperature - Junction	-55°C ~ 150°C	-
RoHS Status	ROHS3 Compliant	-

Substitute Part Grouping Explanation

Substitution of the SMLJ60S05-TP is determined by the following critical parameters:

Primary Substitution Criteria:

Voltage - DC Reverse (Vr) (Max): Must equal or exceed 50 V
Package / Case: Must be DO-214AB, SMC (surface mount)
Mounting Type: Must be Surface Mount
RoHS Status: Must maintain ROHS3 Compliance

Secondary Compatibility Factors:

Current - Average Rectified (Io): The SMLJ60S05-TP is rated for 6 A. Substitute parts rated at 3 A or 5 A operate within the same voltage class but with reduced current capacity. These are acceptable substitutes for applications requiring lower current ratings.
Voltage - Forward (Vf): Variations in forward voltage drop are acceptable within the 50 V class, as long as the reverse voltage rating is maintained.
Speed (Recovery Characteristics): Both standard recovery (>500ns) and fast recovery (≤500ns) diodes are functionally compatible in the 50 V class.

Substitute parts are grouped into two categories:

Category 1: Direct Current Rating Substitutes (3 A rated) Parts rated for 3 A average rectified current in the 50 V class with DO-214AB packaging. These include CSFC301-G, CURC301-G, ES3A, ES3A-13-F, RS3A-13-F, S3A, and S3A-13-F.

Category 2: Reduced Current Rating Substitutes (5 A rated) Parts rated for 5 A average rectified current in the 50 V class with DO-214AB packaging. This includes S5AC-13-F.

All substitute parts maintain the same reverse voltage rating (50 V), package type (DO-214AB, SMC), and surface mount configuration as the original part.

Parameter Comparison

Part Number	Manufacturer	Vr (Max) [V]	Io [A]	Vf (Max) @ If [V @ A]	Speed	Package	Product Status	RoHS
SMLJ60S05-TP	Micro Commercial Co	50	6	1 @ 6	Standard Recovery >500ns	DO-214AB, SMC	Not For New Designs	ROHS3
S5AC-13-F	Diodes Incorporated	50	5	1.15 @ 5	Standard Recovery >500ns	DO-214AB, SMC	Active	ROHS3
CSFC301-G	Comchip Technology	50	3	0.95 @ 3	Fast Recovery ≤500ns	DO-214AB, SMC	Active	ROHS3
CURC301-G	Comchip Technology	50	3	1 @ 3	Fast Recovery ≤500ns	DO-214AB, SMC	Active	ROHS3
ES3A	Taiwan Semiconductor Corporation	50	3	0.95 @ 3	Fast Recovery ≤500ns	DO-214AB, SMC	Active	ROHS3
ES3A-13-F	Diodes Incorporated	50	3	0.9 @ 3	Fast Recovery ≤500ns	DO-214AB, SMC	Active	ROHS3
RS3A-13-F	Diodes Incorporated	50	3	1.3 @ 3	Fast Recovery ≤500ns	DO-214AB, SMC	Active	ROHS3
S3A	Diodes Incorporated	50	3	1.15 @ 3	Standard Recovery >500ns	DO-214AB, SMC	Obsolete	ROHS3
S3A-13-F	Diodes Incorporated	50	3	1.15 @ 3	Standard Recovery >500ns	DO-214AB, SMC	Active	ROHS3

Engineering Selection Recommendations

For Direct Replacement (6 A Current Requirement):

S5AC-13-F is the primary substitute for applications requiring 5 A or higher current capacity. This part is manufactured by Diodes Incorporated with Active product status, ensuring ongoing availability and support. It maintains the same 50 V reverse voltage rating, DO-214AB package, and surface mount configuration as the original SMLJ60S05-TP. The standard recovery speed characteristic matches the original part's performance profile.

For Reduced Current Applications (3 A or Lower):

Multiple active substitutes are available for applications with lower current requirements:

ES3A-13-F (Diodes Incorporated): Active status with fast recovery characteristics and the lowest forward voltage drop (0.9 V @ 3 A) among 3 A options. Suitable for applications prioritizing efficiency.
S3A-13-F (Diodes Incorporated): Active status with standard recovery characteristics matching the original part's speed profile. Forward voltage of 1.15 V @ 3 A.
CSFC301-G (Comchip Technology): Active status with fast recovery characteristics and low forward voltage (0.95 V @ 3 A). Reverse recovery time of 35 ns.
CURC301-G (Comchip Technology): Active status with fast recovery characteristics and forward voltage of 1 V @ 3 A. Reverse recovery time of 50 ns.
ES3A (Taiwan Semiconductor Corporation): Active status with fast recovery characteristics and forward voltage of 0.95 V @ 3 A.
RS3A-13-F (Diodes Incorporated): Active status with extended operating temperature range (-65°C ~ 150°C) and fast recovery characteristics. Forward voltage of 1.3 V @ 3 A.

Parts to Avoid:

S3A (Diodes Incorporated) carries Obsolete product status and should not be selected for new applications or ongoing system support, despite technical compatibility.

All recommended substitutes maintain ROHS3 compliance and are available in active production status, ensuring long-term supply chain reliability.

Frequently Asked Questions (FAQ)

Q: Can I use a 3 A rated diode as a substitute for the 6 A SMLJ60S05-TP?

A: A 3 A rated diode can be used only in applications where the actual circuit current does not exceed 3 A. The 3 A rating represents the maximum average rectified current the diode can safely conduct. If your circuit requires 6 A operation, a 3 A substitute will fail. For applications with confirmed current requirements below 3 A, 3 A rated substitutes are electrically compatible.

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

A: Standard recovery diodes have reverse recovery times greater than 500 ns, while fast recovery diodes have reverse recovery times of 500 ns or less. Both types are functionally compatible in the 50 V class. Fast recovery diodes exhibit lower switching losses and are preferred in high-frequency applications. Standard recovery diodes are suitable for line-frequency and low-frequency rectification.

Q: Are all substitute parts available in the same packaging?

A: All substitute parts listed use the DO-214AB (SMC) surface mount package, matching the original SMLJ60S05-TP. However, packaging format (Tape & Reel, Cut Tape, or bulk) may vary by supplier and part number. Verify packaging format with your supplier before ordering to ensure compatibility with your assembly process.

Q: Why is the SMLJ60S05-TP marked "Not For New Designs"?

A: This designation indicates the part has been superseded by the manufacturer and is no longer recommended for new product development. However, the part remains available for legacy system support and repair. For new designs, select from the active status substitutes listed, such as S5AC-13-F for 5 A applications or S3A-13-F for 3 A applications.

Q: Can I use ES3A-13-F as a direct replacement?

A: ES3A-13-F is compatible for applications requiring 3 A or less. It maintains the 50 V reverse voltage rating and DO-214AB package. However, it is rated for 3 A average rectified current, not 6 A. If your circuit requires 6 A operation, ES3A-13-F is not suitable. For 6 A operation, use S5AC-13-F.

Q: What does RoHS3 compliance mean?

A: ROHS3 compliance indicates the part meets the Restriction of Hazardous Substances Directive (RoHS) requirements, which restrict the use of specific hazardous materials including lead, cadmium, mercury, and certain flame retardants. All substitute parts listed are ROHS3 compliant, ensuring compatibility with environmental and regulatory requirements.

Q: How do I choose between multiple 3 A substitutes?

A: Selection depends on your specific application requirements. For efficiency-critical applications, ES3A-13-F offers the lowest forward voltage drop (0.9 V @ 3 A). For applications requiring standard recovery characteristics matching the original part, S3A-13-F is appropriate. For extended temperature range operation, RS3A-13-F supports -65°C to 150°C. All are active status parts with reliable supply availability.

Q: Is the operating temperature range important for substitution?

A: The SMLJ60S05-TP operates from -55°C to 150°C. Most 3 A substitutes operate from -65°C to 150°C, providing extended low-temperature capability. If your application operates within the -55°C to 150°C range, any substitute is suitable. If operation below -55°C is required, verify the specific substitute's temperature rating.

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