SMLJ58E3/TR13 Equivalent and Substitute Parts

Part Overview

The SMLJ58E3/TR13 is a unidirectional transient voltage suppressor (TVS) diode manufactured by Microchip Technology, packaged in DO-214AB (SMC) surface mount configuration. This device is in Active product status and is designed for general-purpose transient overvoltage protection applications. Alternative models are necessary to address varying power dissipation requirements, availability constraints, or specific application demands while maintaining electrical compatibility within the 58V standoff voltage class.

Substiute Parts

SMLJ58E3/TR13

Microchip TechnologyIn Stock: 826SMLJ58E3/TR13 Datasheet

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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-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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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SMLJ58E3/TR13 is determined by three critical parameters: reverse standoff voltage (58V), voltage breakdown minimum (64.4V), and unidirectional channel configuration (1 channel). All substitute parts maintain these core electrical characteristics, ensuring functional compatibility in circuits designed for this voltage class.

Substitute parts are grouped by power dissipation capability, which affects thermal management and current handling:

• 300W Category: Original specification level
• 1500W (1.5kW) Category: Mid-range power dissipation
• 3000W (3kW) Category: Enhanced power dissipation
• 5000W (5kW) Category: Maximum power dissipation

The voltage-clamping characteristic may vary between substitutes (93.6V to 103V maximum), which is acceptable within TVS diode design tolerances. Peak pulse current ratings correspondingly scale with power dissipation ratings. All substitute parts are surface-mount compatible in DO-214AB/SMC package format and maintain ROHS3 compliance.

Parameter Comparison

Engineering Selection Recommendations

All listed substitute parts are Active-status products with ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity ratings, ensuring regulatory and reliability equivalence to the SMLJ58E3/TR13 across industrial and commercial applications.

Selection among substitutes depends on application power dissipation requirements:

For applications requiring 300W dissipation: The SMLJ58E3/TR13 remains the primary choice. Equivalent alternatives at this power level are not available in the substitute list.

For applications allowing 1500W dissipation: SMCJ58A-13-F (Diodes Incorporated), SMCJ58A-TP (Micro Commercial Co), or SMCJ58A (MDD) provide functional equivalence with reduced thermal stress and broader operating temperature ranges in some variants.

For applications requiring 3000W dissipation: 3.0SMCJ58A-13 (Diodes Incorporated) or SMDJ58A (Alpha & Omega Semiconductor Inc.) offer enhanced power handling while maintaining voltage specifications.

For applications requiring 5000W dissipation: 5.0SMDJ58A (Taiwan Semiconductor Corporation) or 5.0SMDJ58A-T7 (Littelfuse Inc.) provide maximum power dissipation capability. The 5.0SMDJ58A-T7 variant supports extended low-temperature operation (-65°C minimum vs. -55°C).

Voltage-clamping characteristics across all substitutes remain within acceptable TVS diode design tolerance, with variations between 93.6V and 103V maximum clamping voltage at peak pulse current.

Frequently Asked Questions (FAQ)

Q: Can I substitute SMLJ58E3/TR13 with a lower power-rated part?

A: No. All substitute parts listed have equal or higher power ratings. Lower power ratings would increase junction temperature under identical transient stress conditions and are not recommended for direct substitution.

Q: Are all substitute parts mechanically compatible with DO-214AB footprints?

A: Yes. All substitute parts are surface-mount devices in DO-214AB/SMC package format and are mechanically compatible with PCB layouts designed for SMLJ58E3/TR13.

Q: What is the difference between 93.6V and 103V clamping voltage?

A: Clamping voltage represents the maximum voltage across the TVS diode during peak pulse current stress. Both values fall within acceptable TVS design tolerances. The 103V clamping of SMLJ58E3/TR13 provides tighter voltage suppression; lower clamping values (93.6V) in substitutes still provide adequate overvoltage protection for circuits designed around the 58V standoff class.

Q: Can I use a 5000W part in place of a 300W part?

A: Yes. Higher power-rated devices are directly compatible and provide superior transient protection margin with reduced thermal stress. They are physically identical in footprint and electrically equivalent in voltage characteristics.

Q: Are there temperature-range considerations for substitution?

A: Operating temperature ranges vary among substitutes (-50°C to -65°C minimum, -150°C to -175°C maximum). Verify that the selected substitute's operating range encompasses your application's thermal environment. SMLJ58E3/TR13 specifies -55°C to 150°C; substitutes offering -55°C ~ 175°C provide extended high-temperature capability.

Q: What is the significance of 1 Unidirectional Channel?

A: This confirms single-directional overvoltage protection (cathode-to-anode). All listed substitutes maintain this configuration and are therefore functionally equivalent for unidirectional transient suppression circuits.

Q: Do all substitutes maintain ROHS3 and MSL 1 compliance?

A: Yes. All substitute parts listed are ROHS3 compliant and rated MSL 1 (Unlimited moisture sensitivity), matching the compliance profile of SMLJ58E3/TR13.