SMLJ58AE3/TR13 Equivalent & Substitute Parts

Part Overview

The SMLJ58AE3/TR13 is a unidirectional transient voltage suppressor (TVS) diode manufactured by Microchip Technology, designed for general-purpose overvoltage protection in surface-mount applications. This component features a 58V reverse standoff voltage with a 93.6V maximum clamping voltage and 32A peak pulse current capability in a DO-214AB (SMC) package. The part is active in production status with full RoHS3 compliance and unlimited moisture sensitivity rating.

Equivalent and substitute parts are necessary when the primary part experiences supply constraints, extended lead times, or when design requirements permit selection from multiple qualified manufacturers offering compatible electrical and mechanical characteristics.

Substiute Parts

SMLJ58AE3/TR13

Microchip TechnologyIn Stock: 1174SMLJ58AE3/TR13 Datasheet

Current PartRFQ

3.0SMCJ58A-13

Diodes IncorporatedIn Stock: 112313.0SMCJ58A-13 Datasheet

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5.0SMDJ58A

Taiwan Semiconductor CorporationIn Stock: 293475.0SMDJ58A Datasheet

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5.0SMDJ58A-T7

Littelfuse Inc.In Stock: 19365.0SMDJ58A-T7 Datasheet

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SMCJ58A

MDDIn Stock: 105205SMCJ58A Datasheet

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SMCJ58A

MDDIn Stock: 105205SMCJ58A Datasheet

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SMCJ58A

MDDIn Stock: 105205SMCJ58A Datasheet

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SMCJ58A-13-F

Diodes IncorporatedIn Stock: 15350SMCJ58A-13-F Datasheet

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SMCJ58A-TP

Micro Commercial CoIn Stock: 7118SMCJ58A-TP Datasheet

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SMDJ58A

Alpha & Omega Semiconductor Inc.In Stock: 15716SMDJ58A Datasheet

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SMDJ58A-T7

Littelfuse Inc.In Stock: 2014SMDJ58A-T7 Datasheet

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SMLJ58A

Bourns Inc.In Stock: 109955SMLJ58A Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SMLJ58AE3/TR13 is determined by the following critical parameters:

Mandatory Matching Criteria:

• Voltage - Reverse Standoff (Typ): 58V
• Voltage - Breakdown (Min): 64.4V
• Voltage - Clamping (Max) @ Ipp: 93.6V
• Unidirectional Channels: 1
• Type: Zener
• Package / Case: DO-214AB or SMC
• Mounting Type: Surface Mount
• RoHS Status: ROHS3 Compliant

Allowable Variation Parameters:

• Current - Peak Pulse (10/1000µs): 16A to 53.5A (higher current ratings provide enhanced transient protection capability)
• Power - Peak Pulse: 1500W to 5000W (higher power ratings accommodate greater energy dissipation)
• Operating Temperature Range: Minimum -65°C to -50°C; Maximum 150°C to 175°C (extended ranges provide broader environmental compatibility)
• Manufacturer: Multiple qualified sources permitted

Substitute parts are grouped into three categories based on peak pulse current and power dissipation capacity: standard 16A/1.5kW devices, enhanced 32A/3kW devices, and high-performance 53.5A/5kW devices. All substitutes maintain identical voltage specifications and package compatibility with the primary part.

Parameter Comparison

Engineering Selection Recommendations

Direct Equivalents (Identical Electrical and Thermal Specifications):

The SMLJ58AE3/TR13 has no direct electrical equivalent among the substitute parts listed. The primary part specifies 32A peak pulse current with 300W peak pulse power, which is below the standard industry power ratings for this voltage class.

Recommended Substitutes by Application Category:

For General-Purpose Protection with Standard Power Dissipation (1.5kW):

• SMCJ58A-13-F (Diodes Incorporated)
• SMCJ58A-TP (Micro Commercial Co)
• SMCJ58A (MDD)

These parts provide 16A to 16.1A peak pulse current and 1500W power dissipation. All maintain RoHS3 compliance and unlimited moisture sensitivity. Operating temperature ranges span -55°C to 175°C, providing extended thermal capability compared to the primary part.

For Enhanced Protection with 3kW Power Dissipation:

• 3.0SMCJ58A-13 (Diodes Incorporated)
• SMDJ58A (Alpha & Omega Semiconductor Inc.)
• SMDJ58A-T7 (Littelfuse Inc.)

These parts deliver 32A to 32.1A peak pulse current and 3000W power dissipation, matching the primary part's current specification while providing tenfold power rating improvement. All are RoHS3 compliant with unlimited moisture sensitivity.

For High-Performance Protection with 5kW Power Dissipation:

• 5.0SMDJ58A (Taiwan Semiconductor Corporation)
• 5.0SMDJ58A-T7 (Littelfuse Inc.)

These parts provide 53.5A peak pulse current and 5000W power dissipation for applications requiring maximum transient energy absorption. Both maintain RoHS3 compliance and extended operating temperature ranges to 175°C.

Compliance and Certification Status:

All substitute parts are active in production status with RoHS3 compliance and REACH unaffected designation. Moisture sensitivity level is uniformly rated at MSL 1 (Unlimited) across all alternatives. ECCN classification remains EAR99 for all parts, and HTSUS code 8541.10.0080 applies uniformly.

Frequently Asked Questions (FAQ)

Q: Can I substitute a 16A rated part for the 32A SMLJ58AE3/TR13?

A: Yes. The SMCJ58A-13-F, SMCJ58A-TP, and SMCJ58A parts all feature identical voltage specifications (58V standoff, 93.6V clamping) and surface-mount DO-214AB/SMC packaging. The 16A rating is suitable for applications where the original 32A specification exceeds protection requirements. However, applications requiring the full 32A transient current capacity should select 32A or higher-rated alternatives.

Q: What is the difference between DO-214AB and SMC package designations?

A: DO-214AB and SMC refer to the same physical package form factor used for surface-mount diodes. Both designations describe the identical mechanical and electrical interface. Parts specified as either DO-214AB or SMC are mechanically and electrically interchangeable in PCB layouts designed for this package type.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All substitute parts listed maintain RoHS3 compliance status, matching the primary SMLJ58AE3/TR13 part. This ensures compatibility with procurement requirements and environmental regulations across all listed alternatives.

Q: Can I use a 53.5A rated part in place of the 32A primary part?

A: Yes. The 5.0SMDJ58A and 5.0SMDJ58A-T7 parts maintain identical voltage specifications and package compatibility. Higher current ratings provide enhanced transient protection capability without affecting circuit operation. These parts are suitable for applications where increased protection margin is beneficial.

Q: What is the significance of the power rating difference between the primary part (300W) and substitute parts (1500W to 5000W)?

A: Power rating indicates the maximum energy dissipation capacity during a transient event. The primary part's 300W rating is below standard industry specifications for this voltage class. Substitute parts with 1500W to 5000W ratings provide substantially greater transient energy absorption capability, offering improved protection margin for overvoltage events.

Q: Do all substitute parts have the same operating temperature range as the primary part?

A: No. The primary SMLJ58AE3/TR13 operates from -55°C to 150°C. Substitute parts offer varying ranges: some extend to -65°C minimum or 175°C maximum. Selection should verify that the substitute part's operating temperature range encompasses the application's thermal environment.

Q: Are there any REACH compliance differences among the substitute parts?

A: One substitute part, SMDJ58A-T7 (Littelfuse Inc.), is listed as REACH Affected, while all other parts including the primary SMLJ58AE3/TR13 are REACH Unaffected. Applications subject to REACH compliance requirements should select from the REACH Unaffected alternatives.

Q: Can I mix different manufacturers' parts in the same circuit board design?

A: Yes. All substitute parts maintain identical voltage specifications, package compatibility, and RoHS3 compliance. Multiple manufacturers' parts can be used interchangeably in the same design provided the electrical specifications and package form factor match the circuit requirements.