Equivalent & Substitute Parts for SA2J-E3/5AT

Part Overview

The SA2J-E3/5AT is a general-purpose rectifier diode manufactured by Vishay General Semiconductor - Diodes Division. This surface mount component operates at 600 V DC reverse voltage with 2 A average rectified current in a DO-214AC (SMA) package. The device is classified as Active product status with standard recovery characteristics and is ROHS3 compliant. Alternative equivalent and substitute parts are identified to support procurement flexibility, inventory management, and design optimization across multiple manufacturers while maintaining electrical and mechanical compatibility within specified parameter ranges.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	600	V
Current - Average Rectified (Io)	2	A
Voltage - Forward (Vf) (Max) @ If	1.1 V @ 2 A	V
Reverse Recovery Time (trr)	1.5	µs
Current - Reverse Leakage @ Vr	3	µA @ 600 V
Package / Case	DO-214AC, SMA	—
Mounting Type	Surface Mount	—
Operating Temperature - Junction	-55°C ~ 150°C	°C
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitute parts for the SA2J-E3/5AT are categorized based on electrical parameter compatibility within the rectifier diode classification. The primary substitution criteria are:

Full Parametric Equivalents — Parts matching all critical electrical specifications: 600 V reverse voltage, 2 A average rectified current, DO-214AC (SMA) package, and surface mount configuration. These parts maintain identical voltage and current ratings with compatible forward voltage and recovery characteristics.

Functional Equivalents with Parameter Variations — Parts that satisfy the 600 V reverse voltage requirement but differ in current rating (1 A vs. 2 A), recovery speed classification, or forward voltage characteristics. These parts are suitable for applications where the 2 A current requirement can be met by parallel configuration or where lower current operation is acceptable.

Reduced Voltage Equivalents — Parts rated at 100 V reverse voltage with 1 A current. These are not direct substitutes for 600 V applications but are included as reference alternatives for lower-voltage circuit implementations.

Substitution logic is based strictly on: Voltage - DC Reverse (Vr) (Max), Current - Average Rectified (Io), Package / Case, Mounting Type, and RoHS compliance status.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Vr (Max) [V]	Io [A]	Vf (Max) @ If [V]	trr [µs/ns]	Package	Mounting	Temp Range [°C]	RoHS Status
SA2J-E3/5AT	Vishay	600	2	1.1 @ 2 A	1.5 µs	DO-214AC, SMA	Surface Mount	-55 ~ 150	ROHS3
SA2J-E3/61T	Vishay	600	2	1.1 @ 2 A	1.5 µs	DO-214AC, SMA	Surface Mount	-55 ~ 150	ROHS3
STTH2R06A	STMicroelectronics	600	2	1.7 @ 2 A	50 ns	DO-214AC, SMA	Surface Mount	-40 ~ 175	ROHS3
STTH2L06A	STMicroelectronics	600	2	1.3 @ 2 A	85 ns	DO-214AC, SMA	Surface Mount	-40 ~ 175	ROHS3
US1J-13-F	Diodes Incorporated	600	1	1.7 @ 1 A	75 ns	DO-214AC, SMA	Surface Mount	-65 ~ 150	ROHS3
STTH1R06A	STMicroelectronics	600	1	1.7 @ 1 A	45 ns	DO-214AC, SMA	Surface Mount	-40 ~ 175	ROHS3
STTH1L06A	STMicroelectronics	600	1	1.3 @ 1 A	80 ns	DO-214AC, SMA	Surface Mount	-40 ~ 175	ROHS3
S1B-13-F	Diodes Incorporated	100	1	1.1 @ 1 A	3 µs	DO-214AC, SMA	Surface Mount	-65 ~ 150	ROHS3
US1B-13-F	Diodes Incorporated	100	1	1 @ 1 A	50 ns	DO-214AC, SMA	Surface Mount	-65 ~ 150	ROHS3

Engineering Selection Recommendations

Direct Parametric Equivalent: SA2J-E3/61T is a direct parametric equivalent to SA2J-E3/5AT, manufactured by the same supplier (Vishay General Semiconductor - Diodes Division). Both parts share identical electrical specifications: 600 V reverse voltage, 2 A average rectified current, 1.1 V forward voltage at 2 A, and 1.5 µs reverse recovery time. Both are ROHS3 compliant with MSL 1 rating. The primary distinction is packaging format (Tape & Reel vs. alternative reel configuration). This part is suitable for direct substitution in all applications.

600 V, 2 A Functional Equivalents: STTH2R06A and STTH2L06A (STMicroelectronics) maintain the 600 V reverse voltage and 2 A current ratings required for the SA2J-E3/5AT application. Both are ROHS3 compliant surface mount devices in DO-214AC (SMA) packages. STTH2R06A exhibits faster recovery (50 ns vs. 1.5 µs) with higher forward voltage (1.7 V @ 2 A). STTH2L06A provides intermediate recovery speed (85 ns) with lower forward voltage (1.3 V @ 2 A). Operating temperature range extends to 175°C maximum junction temperature. Selection between these parts depends on circuit requirements for recovery speed and forward voltage characteristics.

600 V, 1 A Alternatives: US1J-13-F, STTH1R06A, and STTH1L06A are rated for 600 V reverse voltage but with 1 A average rectified current. These parts are suitable for applications where current requirements do not exceed 1 A or where parallel configuration is implemented. All maintain ROHS3 compliance and DO-214AC (SMA) surface mount packaging. Recovery characteristics vary from 45 ns (STTH1R06A) to 80 ns (STTH1L06A).

Reduced Voltage Alternatives: S1B-13-F and US1B-13-F are rated at 100 V reverse voltage with 1 A current. These parts are not suitable for direct substitution in 600 V applications but are documented for reference in lower-voltage circuit implementations.

All substitute parts listed maintain ROHS3 compliance, MSL 1 rating, and surface mount DO-214AC (SMA) package configuration. Selection criteria should prioritize voltage and current rating compatibility with circuit requirements.

Frequently Asked Questions (FAQ)

Q: Can SA2J-E3/61T be used as a direct replacement for SA2J-E3/5AT?

A: Yes. SA2J-E3/61T is a parametric equivalent manufactured by Vishay General Semiconductor - Diodes Division with identical electrical specifications: 600 V reverse voltage, 2 A average rectified current, 1.1 V forward voltage at 2 A, and 1.5 µs reverse recovery time. Both parts are ROHS3 compliant with MSL 1 rating and DO-214AC (SMA) surface mount packaging. The parts are interchangeable for all applications.

Q: What is the difference between STTH2R06A and STTH2L06A as substitutes for the SA2J-E3/5AT?

A: Both STTH2R06A and STTH2L06A maintain the 600 V reverse voltage and 2 A current ratings of the SA2J-E3/5AT. The primary differences are: STTH2R06A has 50 ns reverse recovery time with 1.7 V forward voltage at 2 A; STTH2L06A has 85 ns reverse recovery time with 1.3 V forward voltage at 2 A. STTH2L06A provides lower forward voltage drop, while STTH2R06A offers faster recovery. Both are ROHS3 compliant with extended operating temperature range to 175°C.

Q: Can 600 V, 1 A diodes (US1J-13-F, STTH1R06A, STTH1L06A) substitute for the 2 A rated SA2J-E3/5AT?

A: These parts are not direct substitutes due to reduced current rating (1 A vs. 2 A). However, they maintain the 600 V reverse voltage specification. Use is limited to applications where circuit current does not exceed 1 A, or where parallel configuration of multiple 1 A devices is implemented to achieve 2 A capacity. All maintain ROHS3 compliance and DO-214AC (SMA) surface mount packaging.

Q: Why are 100 V rated diodes (S1B-13-F, US1B-13-F) listed as alternatives?

A: These parts are included as reference alternatives for lower-voltage circuit implementations only. They are not suitable for direct substitution in applications requiring 600 V reverse voltage rating. Selection of these parts is appropriate only for circuits designed for 100 V maximum reverse voltage operation.

Q: What packaging formats are available for substitute parts?

A: All substitute parts listed are surface mount devices in DO-214AC (SMA) package configuration, matching the SA2J-E3/5AT package specification. Packaging format variations (Tape & Reel vs. Cut Tape & Digi-Reel) do not affect electrical performance or mechanical compatibility on printed circuit boards.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All substitute parts listed in this reference maintain ROHS3 compliance status, matching the SA2J-E3/5AT compliance requirement. All parts also maintain MSL 1 (Unlimited) moisture sensitivity level rating.

Q: What is the operating temperature range difference between Vishay and STMicroelectronics parts?

A: Vishay SA2J-E3/5AT and SA2J-E3/61T are rated for -55°C to 150°C junction temperature. STMicroelectronics STTH series parts (STTH2R06A, STTH2L06A, STTH1R06A, STTH1L06A) are rated for -40°C to 175°C junction temperature. Diodes Incorporated parts (US1J-13-F, US1B-13-F, S1B-13-F) are rated for -65°C to 150°C. Selection should account for specific circuit operating temperature requirements.

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