SMBJ58A-E3/5B Transient Voltage Suppressor (TVS) Diode - Equivalent & Substitute Parts

Part Overview

The SMBJ58A-E3/5B is an active Transient Voltage Suppressor (TVS) diode manufactured by Vishay General Semiconductor - Diodes Division. This unidirectional zener-type TVS diode is designed for general-purpose transient voltage protection in surface-mount applications. The device operates across a junction temperature range of -55°C to 150°C and is RoHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating. Equivalent and substitute parts are identified based on matching electrical characteristics and mechanical compatibility within the DO-214AA (SMB) package form factor.

Key Parameters

Parameter	Value	Unit
Voltage - Reverse Standoff (Typ)	58	V
Voltage - Breakdown (Min)	64.4	V
Voltage - Clamping (Max) @ Ipp	93.6	V
Current - Peak Pulse (10/1000µs)	6.4	A
Power - Peak Pulse	600	W
Operating Temperature Range	-55 to 150	°C (TJ)
Package / Case	DO-214AA, SMB	-
Mounting Type	Surface Mount	-
Type	Zener	-
Unidirectional Channels	1	-
RoHS Status	ROHS3 Compliant	-
MSL Rating	1 (Unlimited)	-

Substitute Part Grouping Explanation

Substitute parts for the SMBJ58A-E3/5B are classified based on strict electrical and mechanical parameter matching. The primary substitution criteria are:

Critical Matching Parameters:

Voltage - Reverse Standoff (Typ): 58V
Voltage - Breakdown (Min): 64.4V
Voltage - Clamping (Max) @ Ipp: 93.6V
Current - Peak Pulse (10/1000µs): 6.4A (±0.4A tolerance acceptable)
Power - Peak Pulse: 600W
Package / Case: DO-214AA, SMB
Type: Zener, Unidirectional (1 channel)
RoHS Status: ROHS3 Compliant
MSL Rating: 1 (Unlimited)

Group 1: Direct Electrical & Mechanical Equivalents Parts meeting all critical parameters with identical or compatible packaging specifications (Tape & Reel, Cut Tape, or Digi-Reel formats).

Group 2: Manufacturer-Recommended Alternatives Parts designated as manufacturer-recommended substitutes that maintain all electrical specifications but may differ in packaging format or minor current specifications within acceptable tolerance ranges.

Parameter Comparison

Part Number	Manufacturer	Voltage - Reverse Standoff (V)	Voltage - Breakdown Min (V)	Voltage - Clamping Max (V)	Current - Peak Pulse (A)	Power - Peak Pulse (W)	Operating Temp (°C)	Package	RoHS Status	MSL
SMBJ58A-E3/5B	Vishay General Semiconductor	58	64.4	93.6	6.4	600	-55 to 150	DO-214AA, SMB	ROHS3	1
SMBJ58A-E3/52	Vishay General Semiconductor	58	64.4	93.6	6.4	600	-55 to 150	DO-214AA, SMB	ROHS3	1
1SMB58A TR13 PBFREE	Central Semiconductor Corp	58	64.4	93.6	6.4	600	-65 to 150	DO-214AA, SMB	ROHS3	1
SMBJ58A	Meritek	58	64.4	93.6	6.41	600	-55 to 150	DO-214AA, SMB	ROHS3	1
SMBJ58A-13-F	Diodes Incorporated	58	64.4	93.6	6.4	600	-55 to 150	DO-214AA, SMB	ROHS3	1
SMBJ58A-TR	STMicroelectronics	58	64.4	93.6	6.7	600	-55 to 150	DO-214AA, SMB	ROHS3	1
SM6T68A	STMicroelectronics	58.1	64.6	121	33 (8/20µs)	600	-55 to 150	DO-214AA, SMB	ROHS3	1

Engineering Selection Recommendations

Direct Substitutes (Fully Compatible): SMBJ58A-E3/52, SMBJ58A-13-F, SMBJ58A (Meritek), and SMBJ58A-TR are direct electrical and mechanical equivalents to the SMBJ58A-E3/5B. All maintain identical reverse standoff voltage (58V), breakdown voltage (64.4V minimum), clamping voltage (93.6V maximum), and power dissipation (600W). These parts are RoHS3 compliant with MSL 1 rating and operate within the same temperature range. Selection among these equivalents may be based on packaging format availability (Tape & Reel, Cut Tape, or Digi-Reel) and supplier inventory.

Extended Temperature Range Alternative: The 1SMB58A TR13 PBFREE from Central Semiconductor Corp provides identical electrical specifications with an extended lower operating temperature limit (-65°C versus -55°C). This part is suitable for applications requiring enhanced cold-temperature performance while maintaining all other electrical and compliance characteristics.

Higher Current Capability Alternative: The SM6T68A from STMicroelectronics is designated as a manufacturer-recommended alternative. While maintaining the same reverse standoff voltage (58.1V) and package form factor (DO-214AA, SMB), this device features significantly higher peak pulse current (33A at 8/20µs pulse) and clamping voltage (121V maximum). This part is appropriate only when higher transient current handling or higher clamping voltage is required by the application circuit.

All recommended substitutes maintain RoHS3 compliance and MSL 1 (Unlimited) moisture sensitivity rating, ensuring compatibility with standard surface-mount assembly processes.

Frequently Asked Questions (FAQ)

Q: Can SMBJ58A-E3/52 be used as a direct replacement for SMBJ58A-E3/5B? A: Yes. Both parts are manufactured by Vishay General Semiconductor and share identical electrical specifications (58V reverse standoff, 64.4V breakdown minimum, 93.6V clamping maximum, 6.4A peak pulse current). The difference is packaging format: SMBJ58A-E3/5B is supplied in Tape & Reel format, while SMBJ58A-E3/52 is supplied in Cut Tape & Digi-Reel format. Electrical performance and compliance are equivalent.

Q: What is the difference between SMBJ58A-TR and SMBJ58A-E3/5B? A: Both parts maintain identical electrical specifications and DO-214AA SMB package compatibility. SMBJ58A-TR is manufactured by STMicroelectronics and features a peak pulse current of 6.7A (versus 6.4A for the Vishay part), which falls within acceptable tolerance for this device class. Both are RoHS3 compliant with MSL 1 rating.

Q: Is SM6T68A a suitable substitute for SMBJ58A-E3/5B? A: SM6T68A is a manufacturer-recommended alternative only for applications requiring higher transient current handling. While both maintain the same 58V reverse standoff voltage and DO-214AA SMB package, SM6T68A features significantly higher peak pulse current (33A at 8/20µs) and clamping voltage (121V maximum). Use this part only if your circuit design specifically requires these enhanced characteristics.

Q: Can I use 1SMB58A TR13 PBFREE in place of SMBJ58A-E3/5B? A: Yes, with the advantage of extended low-temperature operation. The 1SMB58A TR13 PBFREE from Central Semiconductor Corp provides identical electrical specifications and package compatibility, with an extended operating temperature range of -65°C to 150°C (versus -55°C to 150°C for the Vishay part). This makes it suitable for applications requiring enhanced cold-temperature performance.

Q: Are all substitute parts RoHS3 compliant? A: Yes. All listed substitute parts maintain RoHS3 compliance and MSL 1 (Unlimited) moisture sensitivity rating, ensuring compatibility with standard surface-mount assembly and environmental regulations.

Q: What packaging formats are available for these TVS diodes? A: Substitute parts are available in Tape & Reel (TR), Cut Tape (CT), and Digi-Reel formats. All maintain the same DO-214AA SMB package form factor for PCB mounting. Packaging format selection depends on assembly process requirements and supplier availability.

Q: Do all substitute parts operate across the same temperature range? A: Most substitute parts operate from -55°C to 150°C junction temperature. The exception is 1SMB58A TR13 PBFREE, which extends the lower limit to -65°C. Verify your application's temperature requirements before selection.

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