SMLJ64AE3/TR13 Equivalent & Substitute Parts

Part Overview

The SMLJ64AE3/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 operates with a 64V reverse standoff voltage and provides 103V maximum clamping voltage at peak pulse current. The part is active in production status and RoHS3 compliant, making it suitable for modern electronic circuit protection requirements. Equivalent and substitute parts are identified based on matching electrical characteristics and mechanical compatibility within the DO-214AB (SMC) package family.

Substiute Parts

SMLJ64AE3/TR13

Microchip TechnologyIn Stock: 982SMLJ64AE3/TR13 Datasheet

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3SMC64A TR13 PBFREE

Central Semiconductor CorpIn Stock: 33053SMC64A TR13 PBFREE Datasheet

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5.0SMDJ64A

Taiwan Semiconductor CorporationIn Stock: 92355.0SMDJ64A Datasheet

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5.0SMDJ64A-T7

Littelfuse Inc.In Stock: 16235.0SMDJ64A-T7 Datasheet

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SMCJ64A

MeritekIn Stock: 38251SMCJ64A Datasheet

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SMCJ64A

MeritekIn Stock: 38251SMCJ64A Datasheet

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SMCJ64A

MeritekIn Stock: 38251SMCJ64A Datasheet

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SMCJ64A-13-F

Diodes IncorporatedIn Stock: 4110SMCJ64A-13-F Datasheet

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SMCJ64A-TP

Micro Commercial CoIn Stock: 3842SMCJ64A-TP Datasheet

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SMDJ64A

Alpha & Omega Semiconductor Inc.In Stock: 17180SMDJ64A Datasheet

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SMLJ64A

Bourns Inc.In Stock: 12420SMLJ64A Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SMLJ64AE3/TR13 are classified based on strict electrical and mechanical parameter matching. The primary substitution criteria are:

Critical Matching Parameters:

• Voltage - Reverse Standoff: 64V
• Voltage - Clamping (Max) @ Ipp: 103V
• Voltage - Breakdown (Min): 71.1V
• Unidirectional Channels: 1
• Package / Case: DO-214AB or SMC equivalent
• Mounting Type: Surface Mount
• Type: Zener

Substitution Categories:

Direct Equivalents (Identical Electrical Performance): Parts with 29.2A peak pulse current and 300W or higher peak pulse power rating, matching all voltage specifications and operating temperature ranges compatible with -55°C to 150°C minimum.

Higher Power Rated Substitutes (Enhanced Performance): Parts with 48.6A peak pulse current and 5000W peak pulse power rating, providing superior transient suppression capability while maintaining identical voltage specifications. These parts are suitable for applications requiring higher energy dissipation.

Lower Power Rated Substitutes (Reduced Performance): Parts with 14.56A or 14.6A peak pulse current and 1500W peak pulse power rating. These parts maintain voltage specifications but have reduced current handling capacity and are suitable only for lower-energy transient environments.

All substitute parts maintain RoHS3 compliance, MSL Level 1 rating, and unidirectional single-channel configuration.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Identical Specifications):

The SMDJ64A (Alpha & Omega Semiconductor Inc.) and SMLJ64A (Bourns Inc.) provide direct electrical equivalence to the SMLJ64AE3/TR13, with matching 29.2A peak pulse current and compatible 3000W peak pulse power ratings. Both parts maintain RoHS3 compliance and operate within the -55°C to 150°C temperature range. These parts are suitable for one-to-one substitution in existing designs without circuit modification.

For Enhanced Transient Protection:

The 5.0SMDJ64A (Taiwan Semiconductor Corporation) and 5.0SMDJ64A-T7 (Littelfuse Inc.) offer superior performance with 48.6A peak pulse current and 5000W peak pulse power rating. These parts maintain identical voltage specifications (64V standoff, 103V clamping) and are suitable for applications requiring higher energy dissipation or more aggressive transient environments. The 5.0SMDJ64A-T7 extends the upper operating temperature to 150°C (matching the original part) and is available in Tape & Reel packaging.

For Cost-Optimized Applications:

The SMCJ64A (Meritek), SMCJ64A-13-F (Diodes Incorporated), and SMCJ64A-TP (Micro Commercial Co) provide lower-cost alternatives with reduced current handling (14.56A to 14.6A) and 1500W peak pulse power. These parts maintain voltage specifications and RoHS3 compliance but are suitable only for lower-energy transient suppression applications. The SMCJ64A-TP variant extends the upper operating temperature to 175°C.

For Extended Temperature Range:

The 3SMC64A TR13 PBFREE (Central Semiconductor Corp) extends the lower operating temperature to -65°C while maintaining the upper limit at 150°C, providing enhanced cold-temperature performance. This part offers 3000W peak pulse power and 29.2A peak pulse current, matching the original electrical performance.

All recommended substitutes maintain RoHS3 compliance, MSL Level 1 rating, and surface-mount DO-214AB (SMC) package compatibility.

Frequently Asked Questions (FAQ)

Q: Can I substitute the SMLJ64AE3/TR13 with a lower-power rated part such as SMCJ64A?

A: Substitution with lower-power rated parts (SMCJ64A series at 1500W, 14.56A) is permissible only if the application's transient energy profile does not exceed the reduced current and power specifications. The voltage specifications (64V standoff, 103V clamping) remain identical, but the component's ability to suppress higher-energy transients is diminished. Circuit analysis must confirm that peak pulse currents remain below 14.6A.

Q: What is the difference between the 5.0SMDJ64A and SMLJ64AE3/TR13?

A: The 5.0SMDJ64A provides enhanced performance with 48.6A peak pulse current and 5000W peak pulse power, compared to the original part's 29.2A and 300W specifications. Voltage characteristics (64V standoff, 103V clamping) are identical. The 5.0SMDJ64A is suitable for applications requiring superior transient suppression capability. Both parts use the same DO-214AB (SMC) package and are RoHS3 compliant.

Q: Are all substitute parts compatible with the DO-214AB package footprint?

A: All listed substitute parts use the DO-214AB or SMC package designation, which are mechanically and electrically equivalent for surface-mount applications. PCB footprints designed for DO-214AB (SMC) packages are compatible with all listed substitutes without modification.

Q: What is the significance of the Tape & Reel (TR) packaging designation?

A: Tape & Reel packaging indicates the component is supplied on continuous tape suitable for automated pick-and-place assembly equipment. Parts designated with TR13 or TR packaging are compatible with standard SMT assembly processes. Parts without explicit packaging designation may be supplied in alternative formats; verify with the supplier for specific assembly requirements.

Q: Can I use the 3SMC64A TR13 PBFREE in applications requiring operation below -55°C?

A: The 3SMC64A TR13 PBFREE extends the lower operating temperature to -65°C, making it suitable for cold-temperature applications where the original SMLJ64AE3/TR13 (-55°C minimum) is insufficient. All other electrical specifications remain identical, and the part maintains RoHS3 compliance and MSL Level 1 rating.

Q: What does "PBFREE" designation indicate?

A: PBFREE indicates the component is manufactured without lead (Pb) in the solder or plating, consistent with RoHS3 compliance requirements. This designation confirms the part meets environmental and regulatory standards for lead-free manufacturing.

Q: Are there any compliance or certification differences between substitute parts?

A: All listed substitute parts maintain RoHS3 compliance, REACH Unaffected or REACH Affected status, and EAR99 export classification. The SMLJ64A (Bourns Inc.) is listed as REACH Affected, while other parts are REACH Unaffected. Verify specific compliance requirements for your application and supply chain before final part selection.