SE30AFJ-M3/6B Equivalent & Substitute Parts

Part Overview

The SE30AFJ-M3/6B is a general-purpose rectifier diode manufactured by Vishay General Semiconductor - Diodes Division, rated for 600 V DC reverse voltage and 1.4 A average rectified current in a surface mount DO-221AC (SlimSMA) package. This diode operates across a junction temperature range of -55°C to 175°C and is classified as Active product status with ROHS3 compliance and unlimited moisture sensitivity level (MSL 1).

Equivalent and substitute parts are identified to address component availability, inventory constraints, or specific application requirements such as automotive qualification or alternative manufacturer sourcing while maintaining electrical and mechanical compatibility within the DO-221AC package family.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	600	V
Current - Average Rectified (Io)	1.4	A
Voltage - Forward (Vf) (Max) @ If	1.1 V @ 3 A	V
Reverse Recovery Time (trr)	1.5	µs
Current - Reverse Leakage @ Vr	10	µA @ 600 V
Capacitance @ Vr, F	19	pF @ 4V, 1MHz
Package / Case	DO-221AC, SMA Flat Leads	—
Mounting Type	Surface Mount	—
Operating Temperature - Junction	-55 to 175	°C
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitute parts for the SE30AFJ-M3/6B are classified into two categories based on electrical and mechanical compatibility:

Parametric Equivalents (Vishay eSMP® Series): Parts SE30AFJ-M3/6A, SE30AFJHM3/6A, and SE30AFJHM3J/6A maintain identical electrical specifications including 600 V reverse voltage, 1.4 A average rectified current, 1.1 V forward voltage at 3 A, 1.5 µs reverse recovery time, and 19 pF capacitance. All three parts share the DO-221AC package with SMA flat leads and operate across -55°C to 175°C. The primary differentiators are packaging code variants and automotive qualification status (AEC-Q101) for the HM3 variants.

Manufacturer-Recommended Alternative (Micro Commercial Co): Part GS1JFL-TP provides functional substitution with the same 600 V reverse voltage rating and DO-221AC package. However, this part operates at 1 A average rectified current (versus 1.4 A), exhibits faster recovery characteristics (≤500 ns versus >500 ns), lower forward voltage (1 V @ 1 A), and reduced capacitance (15 pF). The maximum junction temperature is 150°C (versus 175°C). This part is suitable for applications where the lower current rating and faster recovery characteristics are acceptable.

Parameter Comparison

Parameter	SE30AFJ-M3/6B	SE30AFJ-M3/6A	SE30AFJHM3/6A	SE30AFJHM3J/6A	GS1JFL-TP
Manufacturer	Vishay	Vishay	Vishay	Vishay	Micro Commercial Co
Voltage - DC Reverse (Vr) (Max)	600 V	600 V	600 V	600 V	600 V
Current - Average Rectified (Io)	1.4 A	1.4 A	1.4 A	1.4 A	1 A
Voltage - Forward (Vf) (Max) @ If	1.1 V @ 3 A	1.1 V @ 3 A	1.1 V @ 3 A	1.1 V @ 3 A	1 V @ 1 A
Reverse Recovery Time (trr)	1.5 µs	1.5 µs	1.5 µs	1.5 µs	≤500 ns
Current - Reverse Leakage @ Vr	10 µA @ 600 V	10 µA @ 600 V	10 µA @ 600 V	10 µA @ 600 V	10 µA @ 600 V
Capacitance @ Vr, F	19 pF @ 4V, 1MHz	19 pF @ 4V, 1MHz	19 pF @ 4V, 1MHz	19 pF @ 4V, 1MHz	15 pF @ 4V, 1MHz
Package / Case	DO-221AC, SMA Flat Leads	DO-221AC, SMA Flat Leads	DO-221AC, SMA Flat Leads	DO-221AC, SMA Flat Leads	DO-221AC, SMA Flat Leads
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Operating Temperature - Junction	-55 to 175°C	-55 to 175°C	-55 to 175°C	-55 to 175°C	-55 to 150°C
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Automotive Qualification	—	—	AEC-Q101	AEC-Q101	—

Engineering Selection Recommendations

Direct Parametric Equivalents: SE30AFJ-M3/6A, SE30AFJHM3/6A, and SE30AFJHM3J/6A are full parametric equivalents to SE30AFJ-M3/6B. All three parts maintain identical electrical characteristics across voltage, current, forward voltage, recovery time, leakage current, and capacitance specifications. All are Active status products with ROHS3 compliance and MSL 1 rating. Selection among these three variants depends on application requirements: SE30AFJ-M3/6A for general industrial applications, SE30AFJHM3/6A or SE30AFJHM3J/6A for automotive applications requiring AEC-Q101 qualification.

Alternative Manufacturer Option: GS1JFL-TP from Micro Commercial Co is suitable for applications where the reduced current rating (1 A versus 1.4 A), faster recovery characteristics (≤500 ns), and lower maximum junction temperature (150°C versus 175°C) are compatible with circuit requirements. This part maintains the same 600 V reverse voltage rating, DO-221AC package, and ROHS3 compliance. The lower forward voltage (1 V @ 1 A) and reduced capacitance (15 pF) may provide performance benefits in specific switching applications.

All substitute parts are Active status products with ROHS3 compliance, REACH unaffected status, and MSL 1 rating, ensuring compatibility with standard manufacturing and storage requirements.

Frequently Asked Questions (FAQ)

Q: Can SE30AFJ-M3/6A be used as a direct replacement for SE30AFJ-M3/6B?

A: Yes. SE30AFJ-M3/6A is a parametric equivalent with identical electrical specifications: 600 V reverse voltage, 1.4 A average rectified current, 1.1 V forward voltage at 3 A, 1.5 µs reverse recovery time, and 19 pF capacitance. Both parts use the DO-221AC package with SMA flat leads and operate across -55°C to 175°C. The parts differ only in packaging code designation.

Q: What is the difference between SE30AFJHM3/6A and SE30AFJHM3J/6A?

A: Both parts are parametric equivalents with identical electrical specifications and AEC-Q101 automotive qualification. The primary difference is the packaging code variant (HM3 versus HM3J), which reflects different manufacturing or qualification batches. Both maintain 600 V reverse voltage, 1.4 A current rating, and DO-221AC package compatibility.

Q: Can GS1JFL-TP replace SE30AFJ-M3/6B in all applications?

A: GS1JFL-TP is a functional substitute with the same 600 V reverse voltage and DO-221AC package. However, it operates at 1 A average rectified current (versus 1.4 A), exhibits faster recovery (≤500 ns versus 1.5 µs), lower forward voltage (1 V @ 1 A), and maximum junction temperature of 150°C (versus 175°C). Substitution is valid only for applications where these parameter differences are acceptable.

Q: Are all substitute parts RoHS compliant?

A: Yes. SE30AFJ-M3/6A, SE30AFJHM3/6A, SE30AFJHM3J/6A, and GS1JFL-TP are all ROHS3 compliant with MSL 1 (unlimited) moisture sensitivity level and REACH unaffected status.

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

A: SE30AFJ-M3/6B and its Vishay equivalents exhibit standard recovery characteristics with reverse recovery time of 1.5 µs. GS1JFL-TP exhibits fast recovery characteristics with reverse recovery time ≤500 ns. Fast recovery diodes switch more rapidly, which reduces switching losses in high-frequency applications but may not be necessary for lower-frequency rectification circuits.

Q: Do the automotive-qualified variants (HM3 series) have different electrical performance?

A: No. SE30AFJHM3/6A and SE30AFJHM3J/6A maintain identical electrical specifications to SE30AFJ-M3/6B and SE30AFJ-M3/6A. The HM3 designation indicates AEC-Q101 automotive qualification, which certifies the parts for automotive-grade reliability and testing standards. Electrical performance remains unchanged.

Q: Can these parts be used interchangeably in PCB assembly?

A: Yes. All substitute parts use the DO-221AC package with SMA flat leads and surface mount technology. PCB footprints and reflow soldering profiles are compatible across all listed parts. No PCB redesign is required for substitution.

Q: What is the significance of the packaging code suffix (6B versus 6A)?

A: The packaging code suffix (6B versus 6A) indicates different tape and reel configurations or manufacturing batches. Both designations represent the same DO-221AC package with SMA flat leads. The suffix does not affect electrical performance or mechanical compatibility.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message