S2J-13 Equivalent & Substitute Parts

Part Overview

The S2J-13 is a general-purpose rectifier diode manufactured by Diodes Incorporated, rated for 600 V DC reverse voltage and 1.5 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. Equivalent parts maintain identical electrical and mechanical specifications, while substitute parts offer compatible performance within defined parameter ranges for the same application category.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	600	V
Current - Average Rectified (Io)	1.5	A
Voltage - Forward (Vf) (Max) @ If	1.15 V @ 1.5 A	V
Speed	Standard Recovery >500ns, > 200mA (Io)	—
Current - Reverse Leakage @ Vr	5	µA @ 600 V
Capacitance @ Vr, F	20	pF @ 4V, 1MHz
Mounting Type	Surface Mount	—
Package / Case	DO-214AA, SMB	—
Operating Temperature - Junction	-65 to 150	°C
RoHS Status	RoHS non-compliant	—

Substitute Part Grouping Explanation

Substitution of the S2J-13 is determined by the following critical parameters:

Voltage Rating: All substitute parts must maintain a DC reverse voltage rating of 600 V or higher to ensure equivalent reverse bias protection.

Current Rating: Substitute parts must support the 1.5 A average rectified current requirement. Parts rated at 1.5 A or higher are acceptable; parts rated below 1.5 A are not suitable.

Package Type: All substitutes must use the DO-214AA (SMB) surface mount package to ensure mechanical and thermal compatibility with existing PCB layouts.

Forward Voltage: Forward voltage characteristics must be compatible with circuit design requirements. Variations in Vf affect power dissipation and circuit performance.

Recovery Speed: Recovery speed classification (Standard or Fast) affects switching behavior and EMI characteristics but does not prevent substitution within the same application category.

Compliance Status: RoHS3 compliance is preferred for new designs and procurement; however, RoHS non-compliant parts remain functionally equivalent for legacy applications.

Substitute parts are grouped into three categories: parametric equivalents (identical electrical specifications), direct manufacturer alternatives (same base part number from different manufacturers), and manufacturer-recommended upgrades (higher current ratings or improved specifications).

Parameter Comparison

Part Number	Manufacturer	Vr (Max) [V]	Io [A]	Vf (Max) [V]	Speed	Package	Temp Range [°C]	RoHS Status	Product Status
S2J-13	Diodes Incorporated	600	1.5	1.15 @ 1.5A	Standard >500ns	DO-214AA, SMB	-65 to 150	Non-compliant	Discontinued
S2J-13-F	Diodes Incorporated	600	1.5	1.15 @ 1.5A	Standard >500ns	DO-214AA, SMB	-65 to 150	ROHS3 Compliant	Active
S2J-LTP	Micro Commercial Co	600	2	1.15 @ 2A	Fast ≤500ns	DO-214AA, SMB	-55 to 150	ROHS3 Compliant	Active
S2J	Nexperia USA Inc.	600	2	1.15 @ 2A	Standard >500ns	DO-214AA, SMB	-65 to 150	—	Active
S5JB	Taiwan Semiconductor Corporation	600	5	1.1 @ 5A	Standard >500ns	DO-214AA, SMB	-55 to 150	ROHS3 Compliant	Active
STTH1L06U	STMicroelectronics	600	1	1.3 @ 1A	Fast ≤500ns	DO-214AA, SMB	—	ROHS3 Compliant	Active
STTH1R06U	STMicroelectronics	600	1	1.7 @ 1A	Fast ≤500ns	DO-214AA, SMB	—	ROHS3 Compliant	Active
STTH2L06U	STMicroelectronics	600	2	1.3 @ 2A	Fast ≤500ns	DO-214AA, SMB	—	ROHS3 Compliant	Active
STTH2R06U	STMicroelectronics	600	2	1.7 @ 2A	Fast ≤500ns	DO-214AA, SMB	-40 to 175	ROHS3 Compliant	Active
STTH3L06U	STMicroelectronics	600	3	1.3 @ 3A	Fast ≤500ns	DO-214AA, SMB	—	ROHS3 Compliant	Active
STTH3R06U	STMicroelectronics	600	3	1.7 @ 3A	Fast ≤500ns	DO-214AA, SMB	—	ROHS3 Compliant	Active

Engineering Selection Recommendations

Primary Equivalent: S2J-13-F (Diodes Incorporated) is the direct parametric equivalent with identical electrical specifications and mechanical package. This part is manufactured by the original supplier, maintains active product status, and achieves ROHS3 compliance. Selection of S2J-13-F is recommended for direct replacement in existing designs without circuit modification.

Manufacturer-Recommended Alternative: S2J (Nexperia USA Inc.) is the base part number designation with 2 A current rating, representing a manufacturer-recommended upgrade path. This part maintains 600 V reverse voltage rating, DO-214AA package compatibility, and active product status. The increased current rating provides design margin for applications operating near the 1.5 A limit.

Higher Current Capacity Options: S2J-LTP (Micro Commercial Co), S5JB (Taiwan Semiconductor Corporation), STTH2L06U, STTH2R06U, STTH3L06U, and STTH3R06U provide current ratings of 2 A or higher. These parts are suitable for applications requiring increased current capacity while maintaining 600 V reverse voltage and DO-214AA package compatibility. All listed options maintain active product status and ROHS3 compliance.

Lower Current Alternatives: STTH1L06U and STTH1R06U are rated for 1 A average rectified current. These parts are not suitable as direct replacements for the S2J-13 due to insufficient current rating. Selection of these parts requires circuit redesign to reduce current requirements below 1 A.

Compliance Consideration: The original S2J-13 is RoHS non-compliant. For new designs or procurement requiring regulatory compliance, selection of ROHS3-compliant alternatives (S2J-13-F, S2J-LTP, S5JB, or STMicroelectronics STTH series) is necessary.

Frequently Asked Questions (FAQ)

Q: Can S2J-13-F be used as a direct replacement for S2J-13?

A: Yes. S2J-13-F is a parametric equivalent manufactured by Diodes Incorporated with identical voltage rating (600 V), current rating (1.5 A), forward voltage (1.15 V @ 1.5 A), and package type (DO-214AA, SMB). The primary difference is ROHS3 compliance status and active product availability. No circuit modification is required.

Q: What is the difference between S2J-13 and S2J?

A: S2J-13 is rated for 1.5 A average rectified current, while S2J is rated for 2 A. Both maintain 600 V reverse voltage rating and DO-214AA package compatibility. S2J provides increased current capacity and is available from multiple manufacturers including Nexperia USA Inc. Selection of S2J is appropriate for applications requiring higher current margin or where 1.5 A parts are unavailable.

Q: Can STTH series diodes replace S2J-13?

A: STTH series diodes with 2 A or higher current ratings (STTH2L06U, STTH2R06U, STTH3L06U, STTH3R06U) are suitable substitutes. All maintain 600 V reverse voltage and DO-214AA package compatibility. STTH1 series parts (1 A rating) are not suitable due to insufficient current capacity. STTH series parts feature fast recovery characteristics (≤500ns) compared to the standard recovery (>500ns) of S2J-13, which affects switching behavior but does not prevent substitution.

Q: What is the impact of forward voltage differences between substitute parts?

A: Forward voltage variations affect power dissipation in the diode. S2J-13 specifies 1.15 V @ 1.5 A. STTH series parts with "L" designation specify 1.3 V, while "R" designation parts specify 1.7 V. Higher forward voltage results in increased power dissipation and heat generation. Circuit designs with tight thermal budgets must account for these differences. Lower forward voltage (S2J-13 at 1.15 V) results in reduced power dissipation.

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

A: All listed substitute parts use DO-214AA (SMB) surface mount package, ensuring mechanical and thermal compatibility with existing PCB layouts. Packaging format differences (Cut Tape, Tape & Reel, Digi-Reel) affect procurement and handling but do not affect electrical performance or PCB assembly compatibility.

Q: What is the significance of recovery speed classification?

A: S2J-13 specifies standard recovery (>500ns), while many STTH series substitutes specify fast recovery (≤500ns). Recovery speed affects the time required for the diode to transition from forward conduction to reverse blocking. Fast recovery reduces switching transients and EMI but does not prevent substitution in standard rectification applications. Applications with specific EMI or switching performance requirements must evaluate recovery speed specifications.

Q: Can S5JB (5 A rating) be used in place of S2J-13 (1.5 A rating)?

A: Yes, from an electrical compatibility standpoint. S5JB maintains 600 V reverse voltage and DO-214AA package compatibility. The 5 A current rating exceeds the 1.5 A requirement, providing substantial design margin. However, the higher current rating may result in unnecessary cost and thermal characteristics. Selection of S5JB is appropriate only when higher current capacity is required by the application.

Q: What is the operating temperature range impact when selecting substitutes?

A: S2J-13 specifies -65°C to 150°C junction temperature range. Substitute parts vary: S2J-LTP and S5JB specify -55°C to 150°C (5°C reduction at lower limit), while some STTH parts specify maximum 175°C without explicit lower limit. Applications requiring operation below -55°C must retain S2J-13 or S2J-13-F. Applications operating within -55°C to 150°C range can use any listed substitute without temperature-related restrictions.

Q: Is RoHS compliance mandatory for substitute selection?

A: RoHS compliance is not mandatory for functional equivalence but is required for new designs and procurement in regulated markets. S2J-13 is RoHS non-compliant. For legacy applications, RoHS non-compliant parts remain functionally equivalent. For new designs or procurement requiring regulatory compliance, ROHS3-compliant alternatives (S2J-13-F, S2J-LTP, S5JB, or STTH series) must be selected.

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