S4J Equivalent & Substitute Parts

Part Overview

The S4J is a general-purpose rectifier diode manufactured by Taiwan Semiconductor Corporation, rated for 600 V DC reverse voltage and 4 A average rectified current in a surface mount DO-214AB (SMC) package. This component is classified as Active product status and complies with RoHS3 and REACH regulations. Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained within the specified parameter ranges for rectifier diode applications.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	600	V
Current - Average Rectified (Io)	4	A
Reverse Recovery Time (trr)	1.5	µs
Current - Reverse Leakage @ Vr	100	µA @ 600 V
Capacitance @ Vr, F	60	pF @ 4V, 1MHz
Package / Case	DO-214AB, SMC	—
Mounting Type	Surface Mount	—
Operating Temperature - Junction	-55 to 150	°C
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitute parts for the S4J rectifier diode are identified based on the following critical parameters:

Voltage Rating Compatibility: All substitute parts maintain the 600 V DC reverse voltage specification, ensuring equivalent reverse voltage protection in circuit applications.

Package Compatibility: All substitute parts use the DO-214AB (SMC) surface mount package, maintaining mechanical and thermal interface compatibility with existing PCB layouts and assembly processes.

Current Rating Consideration: Substitute parts are grouped into two categories based on average rectified current capacity. Parts rated at 3 A or 4 A operate within the primary current range. The 8 A rated part (S8CJHM3/I) provides higher current capacity for applications requiring increased current handling.

Recovery Characteristics: Substitute parts are differentiated by recovery speed classification. Standard recovery devices (trr > 500 ns) and fast recovery devices (trr ≤ 500 ns) are both acceptable substitutes, as recovery speed does not restrict substitution eligibility when voltage and package specifications are met.

Regulatory Compliance: All substitute parts maintain RoHS3 compliance and REACH unaffected status, ensuring regulatory equivalence with the primary part.

Parameter Comparison

Parameter	S4J	MURS360-M3/57T	MURS360T3G	S8CJHM3/I
Manufacturer	Taiwan Semiconductor Corporation	Vishay General Semiconductor - Diodes Division	onsemi	Vishay General Semiconductor - Diodes Division
Voltage - DC Reverse (Vr) (Max)	600 V	600 V	600 V	600 V
Current - Average Rectified (Io)	4 A	3 A	3 A	8 A
Reverse Recovery Time (trr)	1.5 µs	75 ns	75 ns	4 µs
Current - Reverse Leakage @ Vr	100 µA @ 600 V	10 µA @ 600 V	10 µA @ 600 V	10 µA @ 600 V
Package / Case	DO-214AB, SMC	DO-214AB, SMC	DO-214AB, SMC	DO-214AB, SMC
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Operating Temperature - Junction	-55 to 150 °C	-65 to 175 °C	-65 to 175 °C	-55 to 150 °C
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Active	Active	Active	Active

Engineering Selection Recommendations

Primary Substitutes (MURS360-M3/57T and MURS360T3G): These parts are rated at 3 A average rectified current, which is lower than the S4J 4 A rating. Selection of these parts is appropriate for applications where the circuit design accommodates the reduced current capacity. Both parts maintain 600 V voltage rating and DO-214AB package compatibility. MURS360T3G offers higher inventory availability (105,100 pcs) compared to MURS360-M3/57T (15,600 pcs). Both parts feature fast recovery characteristics (75 ns trr) and extended operating temperature range (-65 to 175 °C).

Higher Current Substitute (S8CJHM3/I): This part is rated at 8 A average rectified current, providing increased current capacity beyond the S4J specification. This part maintains 600 V voltage rating and DO-214AB package compatibility. The S8CJHM3/I includes automotive qualification (AEC-Q101) and is suitable for applications requiring higher current handling. Reverse recovery time is 4 µs, classified as standard recovery.

Regulatory and Compliance Status: All substitute parts maintain Active product status, RoHS3 compliance, and REACH unaffected designation, ensuring regulatory equivalence with the primary S4J part.

Frequently Asked Questions (FAQ)

Q: Can MURS360-M3/57T or MURS360T3G be used as direct replacements for S4J in all applications?

A: MURS360-M3/57T and MURS360T3G are rated at 3 A average rectified current, compared to the S4J 4 A rating. These parts are suitable for applications where circuit design accommodates the reduced current capacity. Both maintain identical 600 V voltage rating and DO-214AB package compatibility.

Q: What is the difference between the S4J and S8CJHM3/I?

A: The S8CJHM3/I is rated at 8 A average rectified current, compared to the S4J 4 A rating. Both maintain 600 V voltage rating and DO-214AB package compatibility. The S8CJHM3/I includes automotive qualification (AEC-Q101) and features a longer reverse recovery time (4 µs versus 1.5 µs).

Q: Are all substitute parts compatible with existing PCB layouts designed for S4J?

A: Yes. All substitute parts use the DO-214AB (SMC) surface mount package, maintaining mechanical and thermal interface compatibility with PCB layouts designed for the S4J.

Q: What is the significance of reverse recovery time differences between substitute parts?

A: Reverse recovery time (trr) characterizes the speed at which the diode transitions from forward conduction to reverse blocking. The S4J and S8CJHM3/I are classified as standard recovery (trr > 500 ns), while MURS360-M3/57T and MURS360T3G are classified as fast recovery (trr ≤ 500 ns). Both classifications are acceptable for general-purpose rectifier applications.

Q: Do all substitute parts meet the same regulatory requirements as the S4J?

A: Yes. All substitute parts are RoHS3 compliant and REACH unaffected, maintaining regulatory equivalence with the S4J.

Q: Which substitute part offers the best inventory availability?

A: MURS360T3G offers the highest inventory availability at 105,100 pcs in stock, compared to MURS360-M3/57T at 15,600 pcs and S8CJHM3/I at 6,466 pcs.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message