SMBJ58E3/TR13 Equivalent & Substitute Parts

Part Overview

The SMBJ58E3/TR13 is a unidirectional transient voltage suppressor (TVS) diode manufactured by Microchip Technology, designed for general-purpose overvoltage protection applications. This surface-mount component operates with a reverse standoff voltage of 58V and provides clamping at 103V maximum, with a peak pulse current rating of 5.8A. The part is currently in active production status and is ROHS3 compliant with unlimited moisture sensitivity rating (MSL 1).

Substitute parts are identified based on matching electrical characteristics within the SMBJ58 series, including reverse standoff voltage, breakdown voltage, and surface-mount DO-214AA (SMB) packaging. Alternative sources provide equivalent or superior performance parameters while maintaining compatibility with the original application requirements.

Key Parameters

Parameter	Value	Unit
Reverse Standoff Voltage (Typ)	58	V
Breakdown Voltage (Min)	64.4	V
Clamping Voltage (Max) @ Ipp	103	V
Peak Pulse Current (10/1000µs)	5.8	A
Peak Pulse Power	600	W
Operating Temperature Range	-65 to 150	°C (TJ)
Package Type	DO-214AA (SMB)	Surface Mount
Type	Zener	Unidirectional
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitute parts for the SMBJ58E3/TR13 are qualified based on the following electrical and mechanical criteria:

Primary Matching Criteria:

Reverse standoff voltage: 58V (identical)
Breakdown voltage minimum: 64.4V (identical)
Package type: DO-214AA / SMB surface mount (identical)
Unidirectional zener diode configuration (identical)
Peak pulse power rating: 600W (identical)
RoHS3 compliance (identical)
MSL 1 rating (identical)

Allowable Variations:

Clamping voltage (Max) @ Ipp: 93.6V to 103V (substitute parts operate at lower clamping voltages, providing tighter voltage regulation)
Peak pulse current: 5.8A to 6.7A (substitute parts provide equal or higher current capacity)
Operating temperature range: -55°C to -65°C minimum (substitute parts maintain -55°C or lower minimum)
Packaging format: Tape & Reel (TR) or Cut Tape (CT) with Digi-Reel® (functional equivalence)

All substitute parts maintain the same voltage class, package footprint, and regulatory compliance as the original SMBJ58E3/TR13.

Parameter Comparison

Parameter	SMBJ58E3/TR13 (Microchip)	SMBJ58A (Meritek)	SMBJ58A-13-F (Diodes Inc.)	SMBJ58A-TR (STMicroelectronics)	SZ1SMB58AT3G (Littelfuse)
Manufacturer	Microchip Technology	Meritek	Diodes Incorporated	STMicroelectronics	Littelfuse Inc.
Reverse Standoff Voltage (Typ)	58V	58V	58V	58V	58V
Breakdown Voltage (Min)	64.4V	64.4V	64.4V	64.4V	64.4V
Clamping Voltage (Max) @ Ipp	103V	93.6V	93.6V	93.6V	93.6V
Peak Pulse Current (10/1000µs)	5.8A	6.41A	6.4A	6.7A	6.4A
Peak Pulse Power	600W	600W	600W	600W	600W
Operating Temperature (Min)	-65°C	-55°C	-55°C	-55°C	-65°C
Operating Temperature (Max)	150°C	150°C	150°C	150°C	150°C
Package / Case	DO-214AA, SMB	DO-214AA (SMB)	DO-214AA, SMB	DO-214AA, SMB	DO-214AA, SMB
Type	Zener, Unidirectional	Zener, Unidirectional	Zener, Unidirectional	Zener, Unidirectional	Zener, Unidirectional
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
MSL Rating	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected

Engineering Selection Recommendations

SMBJ58A (Meritek): This substitute provides equivalent reverse standoff and breakdown voltages with improved peak pulse current capacity (6.41A versus 5.8A). The lower clamping voltage (93.6V) offers tighter voltage regulation. Operating temperature minimum of -55°C is suitable for most industrial applications. ROHS3 compliance and unlimited MSL rating ensure regulatory and environmental compatibility.

SMBJ58A-13-F (Diodes Incorporated): Functionally equivalent to the Meritek variant with 6.4A peak pulse current and 93.6V clamping voltage. Cut Tape and Digi-Reel® packaging provides alternative supply chain options. Maintains full ROHS3 compliance and -55°C to 150°C operating range.

SMBJ58A-TR (STMicroelectronics): Offers the highest peak pulse current rating (6.7A) among substitute options while maintaining 93.6V clamping voltage. The TRANSIL™ series designation indicates STMicroelectronics' TVS product line. Tape & Reel packaging matches the original SMBJ58E3/TR13 format. Full ROHS3 compliance and active product status support long-term availability.

SZ1SMB58AT3G (Littelfuse Inc.): This substitute maintains the original -65°C to 150°C operating temperature range, matching the SMBJ58E3/TR13 specification exactly. AEC-Q101 automotive qualification and Tape & Reel packaging provide additional assurance for demanding applications. Capacitance specification (310pF @ 1MHz) is provided for high-frequency circuit analysis. ROHS3 compliant with unlimited MSL rating.

All substitute parts are active products with confirmed inventory availability and meet the electrical requirements for direct replacement in the SMBJ58 voltage class.

Frequently Asked Questions (FAQ)

Q: Can SMBJ58A substitute parts be used in place of SMBJ58E3/TR13?

A: Yes. All listed substitute parts maintain the same 58V reverse standoff voltage, 64.4V minimum breakdown voltage, and DO-214AA (SMB) surface-mount package. The lower clamping voltages (93.6V versus 103V) in substitute parts provide equivalent or superior overvoltage protection performance.

Q: What is the difference between the clamping voltage specifications?

A: The SMBJ58E3/TR13 specifies a maximum clamping voltage of 103V at peak pulse current. Substitute parts specify 93.6V clamping voltage, which represents tighter voltage regulation and lower transient voltage peaks during suppression events. Both values fall within the SMBJ58 series voltage class and are suitable for 58V standoff applications.

Q: Are the packaging formats interchangeable?

A: The original SMBJ58E3/TR13 uses Tape & Reel (TR) packaging. Substitute parts are available in Tape & Reel (TR) format (SMBJ58A-TR, SZ1SMB58AT3G) or Cut Tape (CT) with Digi-Reel® format (SMBJ58A-13-F). All formats use identical DO-214AA (SMB) component footprints and are compatible with standard surface-mount assembly equipment.

Q: Do substitute parts meet the same regulatory requirements?

A: Yes. All substitute parts listed are ROHS3 compliant, REACH unaffected, and carry MSL 1 (unlimited) moisture sensitivity ratings. The SZ1SMB58AT3G additionally carries AEC-Q101 automotive qualification for applications requiring automotive-grade components.

Q: What is the operating temperature range difference?

A: The SMBJ58E3/TR13 and SZ1SMB58AT3G both specify -65°C to 150°C operating range. The Meritek, Diodes Incorporated, and STMicroelectronics variants specify -55°C to 150°C. For applications requiring operation below -55°C, the SZ1SMB58AT3G or original SMBJ58E3/TR13 are required.

Q: Which substitute offers the highest peak pulse current capacity?

A: The SMBJ58A-TR (STMicroelectronics) provides the highest peak pulse current rating at 6.7A, compared to 5.8A for the original SMBJ58E3/TR13. This provides additional margin for transient current suppression in high-energy applications.

Q: Are all substitute parts currently in active production?

A: Yes. All substitute parts listed maintain active product status with confirmed inventory availability. The SMBJ58A-TR (STMicroelectronics) shows the highest inventory level at 47,794 pieces, followed by SMBJ58A (Meritek) at 17,400 pieces.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message