S2J Equivalent & Substitute Parts

Part Overview

The onsemi S2J is a standard recovery rectifier diode rated for 600 V DC reverse voltage and 2 A average rectified current in a surface mount DO-214AA (SMB) package. This component is classified as "Not For New Designs," indicating it is an obsolete or legacy part. Identifying equivalent and substitute parts is necessary for applications requiring continued supply, design updates, or component availability optimization while maintaining electrical and mechanical compatibility.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	600	V
Current - Average Rectified (Io)	2	A
Voltage - Forward (Vf) (Max) @ If	1.15 @ 2 A	V
Reverse Recovery Time (trr)	2	µs
Current - Reverse Leakage @ Vr	1	µA @ 600 V
Package / Case	DO-214AA, SMB	—
Mounting Type	Surface Mount	—
Operating Temperature - Junction	-65 to 150	°C
Speed Classification	Standard Recovery >500ns	—

Substitute Part Grouping Explanation

Substitution of the S2J rectifier diode is determined by the following critical parameters:

Mandatory Matching Parameters:

Voltage - DC Reverse (Vr) (Max): 600 V
Package / Case: DO-214AA (SMB) or compatible surface mount package
Mounting Type: Surface Mount

Current Rating Compatibility: Substitute parts are grouped by average rectified current (Io). The S2J is rated for 2 A. Parts rated at 2 A provide direct substitution. Parts rated below 2 A (1 A or 1.5 A) are suitable only for applications with lower current requirements and are listed as alternatives for current-limited designs.

Recovery Speed Classification: The S2J employs standard recovery characteristics (trr = 2 µs, >500 ns). Substitute parts with fast recovery characteristics (trr ≤ 500 ns) offer improved switching performance and reduced reverse recovery losses but remain electrically compatible at the same voltage and current ratings.

Forward Voltage (Vf): Forward voltage varies among substitutes. The S2J specifies 1.15 V @ 2 A. Substitutes with higher Vf values (up to 1.7 V) increase power dissipation but do not prevent functional substitution in most applications.

Temperature Range: The S2J operates from -65°C to 150°C junction temperature. Substitutes with extended temperature ranges (-65°C to 175°C) provide additional thermal margin but are compatible with the S2J's specified range.

Parameter Comparison

Part Number	Manufacturer	Vr (Max) [V]	Io [A]	Vf (Max) @ If [V]	trr [µs/ns]	Package	Tj (Max) [°C]	Product Status
S2J	onsemi	600	2	1.15 @ 2 A	2 µs	DO-214AA (SMB)	150	Not For New Designs
SURS8260T3G-VF01	onsemi	600	2	1.45 @ 2 A	75 ns	DO-214AA (SMB)	175	Not For New Designs
ER2J-LTP	Micro Commercial Co	600	2	1.7 @ 2 A	35 ns	DO-214AA (SMB)	175	Active
STTH2R06U	STMicroelectronics	600	2	1.7 @ 2 A	50 ns	DO-214AA (SMB)	175	Active
S2J-13-F	Diodes Incorporated	600	1.5	1.15 @ 1.5 A	>500 ns	DO-214AA (SMB)	150	Active
S2J-E3/52T	Vishay General Semiconductor	600	1.5	1.15 @ 1.5 A	2 µs	DO-214AA (SMB)	150	Active
CMR1-06 TR13 PBFREE	Central Semiconductor Corp	600	1	1.1 @ 1 A	≤500 ns	DO-214AA (SMB)	175	Active
STTH1R06U	STMicroelectronics	600	1	1.7 @ 1 A	45 ns	DO-214AA (SMB)	175	Active
ES2J_R1_00001	Panjit International Inc.	600	2	1.7 @ 2 A	35 ns	DO-214AC (SMA)	150	Active

Engineering Selection Recommendations

Direct 2 A Substitutes (Identical Current Rating):

The following parts provide direct electrical substitution for the S2J at the 2 A current rating:

ER2J-LTP (Micro Commercial Co): Active product status. Matches 600 V, 2 A specifications. Fast recovery characteristics (35 ns) reduce switching losses. Extended temperature range to 175°C. RoHS3 compliant.
STTH2R06U (STMicroelectronics): Active product status. Matches 600 V, 2 A specifications. Fast recovery characteristics (50 ns). Extended temperature range to 175°C. RoHS3 compliant.
SURS8260T3G-VF01 (onsemi): Same manufacturer as S2J. Matches 600 V, 2 A specifications. Fast recovery characteristics (75 ns). AEC-Q101 automotive qualified. Extended temperature range to 175°C. RoHS3 compliant. Note: Product status is "Not For New Designs."

Reduced Current Alternatives (1.5 A Rating):

For applications with maximum current requirements of 1.5 A or less:

S2J-13-F (Diodes Incorporated): Active product status. Matches 600 V, 1.5 A specifications. Standard recovery characteristics matching S2J (>500 ns). RoHS3 compliant.
S2J-E3/52T (Vishay General Semiconductor): Active product status. Matches 600 V, 1.5 A specifications. Standard recovery characteristics (2 µs) identical to S2J. RoHS3 compliant.

Lower Current Alternatives (1 A Rating):

For applications with maximum current requirements of 1 A or less:

STTH1R06U (STMicroelectronics): Active product status. Matches 600 V, 1 A specifications. Fast recovery characteristics (45 ns). Extended temperature range to 175°C. RoHS3 compliant.
CMR1-06 TR13 PBFREE (Central Semiconductor Corp): Active product status. Matches 600 V, 1 A specifications. Fast recovery characteristics (≤500 ns). Extended temperature range to 175°C. RoHS3 compliant.

Package Consideration:

ES2J_R1_00001 (Panjit International Inc.): Matches 600 V, 2 A specifications with fast recovery (35 ns). Uses DO-214AC (SMA) package instead of DO-214AA (SMB). Suitable only for designs accommodating SMA footprint. Active product status. RoHS3 compliant.

All substitute parts listed are RoHS3 compliant and REACH unaffected, matching the S2J compliance profile.

Frequently Asked Questions (FAQ)

Q: Can I use a 1.5 A rated diode in place of the 2 A S2J?

A: Only if your application's maximum current requirement does not exceed 1.5 A. The S2J-13-F and S2J-E3/52T are rated for 1.5 A and are suitable for current-limited designs. Using a lower-rated part in a 2 A application will cause overheating and failure.

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

A: The S2J has a reverse recovery time (trr) of 2 µs (standard recovery). Fast recovery substitutes such as ER2J-LTP (35 ns) and STTH2R06U (50 ns) switch faster, reducing reverse recovery losses and heat generation. Both types are electrically compatible at 600 V and 2 A, but fast recovery parts improve efficiency in high-frequency switching applications.

Q: Does forward voltage (Vf) affect substitution compatibility?

A: Forward voltage affects power dissipation but does not prevent substitution. The S2J specifies 1.15 V @ 2 A. Substitutes with higher Vf values (such as ER2J-LTP at 1.7 V @ 2 A) dissipate more power as heat. Select based on thermal design requirements. Lower Vf values reduce power dissipation.

Q: Can I use the ES2J_R1_00001 (SMA package) as a substitute?

A: Only if your PCB design accommodates the DO-214AC (SMA) footprint. The S2J uses DO-214AA (SMB) package. SMA and SMB packages have different physical dimensions and pin spacing. Direct footprint substitution is not possible without PCB redesign.

Q: Why is the S2J marked "Not For New Designs"?

A: This designation indicates the part is obsolete or in end-of-life status. onsemi recommends using active alternatives for new designs. Active substitutes include ER2J-LTP, STTH2R06U, and S2J-13-F (for 1.5 A applications).

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All substitute parts listed in this reference are RoHS3 compliant and REACH unaffected, matching the S2J compliance profile.

Q: What is the temperature operating range difference between S2J and its substitutes?

A: The S2J operates from -65°C to 150°C junction temperature. Many active substitutes (ER2J-LTP, STTH2R06U, CMR1-06 TR13 PBFREE, STTH1R06U) extend the upper limit to 175°C, providing additional thermal margin. This does not prevent substitution; it provides enhanced performance in high-temperature environments.

Q: Which substitute offers the best performance for high-frequency switching?

A: ER2J-LTP and ES2J_R1_00001 both feature the fastest reverse recovery time (35 ns), minimizing switching losses. STTH2R06U offers 50 ns recovery time. These fast recovery characteristics are superior to the S2J's 2 µs standard recovery for applications requiring reduced EMI and improved efficiency.

Q: Can I mix different substitute parts in the same design?

A: Yes, provided each part meets the electrical requirements of its specific circuit location. If your design has multiple 2 A rectifier positions, you may use ER2J-LTP in one location and STTH2R06U in another. Ensure each part's current and voltage ratings match the circuit requirements at that location.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message