S3JBHE3-TP Equivalent & Substitute Parts

Part Overview

The S3JBHE3-TP is a general-purpose rectifier diode manufactured by Micro Commercial Co, rated for 600 V DC reverse voltage and 3 A average rectified current in a surface mount DO-214AA (SMB) package. This component is classified as an automotive-grade diode with AEC-Q101 qualification and is currently active in production. Substitute parts are identified based on matching electrical specifications, package compatibility, and automotive qualification requirements. Alternative sources become necessary for supply chain continuity, inventory availability, or design flexibility across manufacturing partners.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	600	V
Current - Average Rectified (Io)	3	A
Voltage - Forward (Vf) (Max) @ If	1.15	V @ 3 A
Speed	Standard Recovery >500ns, > 200mA (Io)	—
Current - Reverse Leakage @ Vr	10	µA @ 600 V
Capacitance @ Vr, F	40	pF @ 4V, 1MHz
Package / Case	DO-214AA, SMB	—
Operating Temperature - Junction	-55 to 150	°C
Grade	Automotive	—
Qualification	AEC-Q101	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitute parts for the S3JBHE3-TP are qualified based on the following criteria:

Electrical Parameter Matching:

Voltage - DC Reverse (Vr) (Max): 600 V
Current - Average Rectified (Io): 3 A
Voltage - Forward (Vf) (Max) @ If: 1.15 V @ 3 A or lower
Speed: Standard Recovery >500ns, > 200mA (Io)
Current - Reverse Leakage @ Vr: 10 µA @ 600 V or lower
Capacitance @ Vr, F: 40 pF @ 4V, 1MHz

Mechanical & Package Compatibility:

Package / Case: DO-214AA, SMB
Mounting Type: Surface Mount
Operating Temperature - Junction: -55°C to 150°C

Compliance & Certification:

Grade: Automotive
Qualification: AEC-Q101
RoHS Status: ROHS3 Compliant
Moisture Sensitivity Level (MSL): 1 (Unlimited)

All identified substitute parts meet or exceed these parameters and maintain compatibility with the original design specifications.

Parameter Comparison

Parameter	S3JBHE3-TP (Micro Commercial Co)	S3JB (HY Electronic)	S3JB R5G (Taiwan Semiconductor)	S3JBH (Taiwan Semiconductor)	S3JBHR5G (Taiwan Semiconductor)
Voltage - DC Reverse (Vr) (Max)	600 V	600 V	600 V	600 V	600 V
Current - Average Rectified (Io)	3 A	3 A	3 A	3 A	3 A
Voltage - Forward (Vf) (Max) @ If	1.15 V @ 3 A	1.1 V @ 3 A	1.15 V @ 3 A	1.15 V @ 3 A	1.15 V @ 3 A
Speed	Standard Recovery >500ns, > 200mA (Io)	Standard Recovery >500ns, > 200mA (Io)	Standard Recovery >500ns, > 200mA (Io)	Standard Recovery >500ns, > 200mA (Io)	Standard Recovery >500ns, > 200mA (Io)
Current - Reverse Leakage @ Vr	10 µA @ 600 V	5 µA @ 600 V	10 µA @ 600 V	10 µA @ 600 V	10 µA @ 600 V
Capacitance @ Vr, F	40 pF @ 4V, 1MHz	40 pF @ 4V, 1MHz	40 pF @ 4V, 1MHz	40 pF @ 4V, 1MHz	40 pF @ 4V, 1MHz
Package / Case	DO-214AA, SMB	DO-214AA, SMB	DO-214AA, SMB	DO-214AA, SMB	DO-214AA, SMB
Operating Temperature - Junction	-55°C to 150°C	-55°C to 150°C	-55°C to 150°C	-55°C to 150°C	-55°C to 150°C
Grade	Automotive	Automotive	—	Automotive	—
Qualification	AEC-Q101	AEC-Q101	—	AEC-Q101	—
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)
Product Status	Active	Active	Discontinued at DiGi Electronics	Active	Discontinued at DiGi Electronics

Engineering Selection Recommendations

Primary Substitute: S3JBH (Taiwan Semiconductor Corporation)

The S3JBH is the recommended substitute for the S3JBHE3-TP. This part maintains full electrical and mechanical compatibility with identical voltage, current, and thermal specifications. Both components carry automotive-grade classification with AEC-Q101 qualification, ROHS3 compliance, and MSL 1 rating. The S3JBH is currently active in production with 6,670 units in stock, ensuring supply continuity. The forward voltage specification (1.15 V @ 3 A) matches the original part exactly.

Secondary Substitute: S3JB (HY Electronic (Cayman) Limited)

The S3JB from HY Electronic provides full parametric equivalence with superior reverse leakage performance (5 µA @ 600 V versus 10 µA @ 600 V) and marginally lower forward voltage (1.1 V @ 3 A). This part maintains automotive-grade status with AEC-Q101 qualification and ROHS3 compliance. Inventory availability is substantial at 290,474 units. The S3JB is suitable for applications where lower leakage current provides operational advantage.

Tertiary Substitutes: S3JB R5G and S3JBHR5G (Taiwan Semiconductor Corporation)

Both S3JB R5G and S3JBHR5G are parametrically equivalent to the original part with identical electrical specifications. However, both are discontinued at DiGi Electronics and should be considered only when existing inventory is available and supply chain continuity is not a primary concern. These parts maintain full compliance with automotive and RoHS requirements.

Selection Criteria Summary:

For new designs or ongoing production requiring active product status, select S3JBH or S3JB. For applications where supply chain stability is critical, S3JBH is preferred due to active status and automotive qualification. The S3JB is suitable when lower reverse leakage current is beneficial to circuit performance.

Frequently Asked Questions (FAQ)

Q: Can the S3JB be used as a direct replacement for the S3JBHE3-TP?

A: Yes. The S3JB meets all electrical and mechanical specifications required for the S3JBHE3-TP. Both components are rated for 600 V reverse voltage, 3 A average rectified current, and operate across the -55°C to 150°C temperature range. The S3JB features lower reverse leakage current (5 µA versus 10 µA), which is a performance advantage. Both maintain automotive-grade status with AEC-Q101 qualification and ROHS3 compliance.

Q: What is the difference between S3JBH and S3JBHR5G?

A: Both parts are electrically identical with 600 V reverse voltage, 3 A current rating, and 1.15 V forward voltage specification. The primary difference is product status: S3JBH is active in production with 6,670 units available, while S3JBHR5G is discontinued at DiGi Electronics with 4,076 units remaining. For new applications, S3JBH is the appropriate selection.

Q: Are all substitute parts compatible with the DO-214AA (SMB) package footprint?

A: Yes. All identified substitute parts use the DO-214AA (SMB) surface mount package. They are mechanically and electrically compatible with PCB layouts designed for the S3JBHE3-TP without modification to footprint or assembly procedures.

Q: Do the substitute parts maintain automotive qualification?

A: The S3JB and S3JBH maintain full automotive-grade classification with AEC-Q101 qualification, matching the original part. The S3JB R5G and S3JBHR5G do not carry automotive-grade designation in the provided specifications. For automotive applications, S3JB or S3JBH are the appropriate selections.

Q: What is the significance of the reverse leakage current difference between S3JBHE3-TP and S3JB?

A: The S3JBHE3-TP specifies 10 µA reverse leakage at 600 V, while the S3JB specifies 5 µA at the same conditions. Lower reverse leakage reduces standby current consumption and heat generation in circuits where the diode is reverse-biased. This difference is within normal manufacturing variation for this component class and does not affect functional compatibility.

Q: Can discontinued parts like S3JB R5G be used in new production?

A: Discontinued parts should not be selected for new production designs. While S3JB R5G and S3JBHR5G are electrically equivalent, their discontinued status creates supply chain risk. Use S3JBH or S3JB for new designs to ensure long-term component availability and production continuity.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All identified substitute parts carry ROHS3 compliance certification, matching the environmental and material restrictions of the original S3JBHE3-TP. All parts maintain MSL 1 (Unlimited) moisture sensitivity level.

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