SMCJ64CA-M3/9AT Equivalent & Substitute Parts

Part Overview

The SMCJ64CA-M3/9AT is a bidirectional transient voltage suppressor (TVS) diode manufactured by Vishay General Semiconductor - Diodes Division. This surface mount component operates in the 64V reverse standoff category with a 103V maximum clamping voltage and 14.6A peak pulse current rating. The part is classified as Active status and is RoHS3 compliant, making it suitable for general-purpose transient protection applications in industrial and commercial electronics. Equivalent and substitute parts are identified based on matching electrical characteristics, mechanical compatibility, and operational parameters within the DO-214AB (SMC) package family.

Substiute Parts

SMCJ64CA-M3/9AT

Vishay General Semiconductor - Diodes DivisionIn Stock: 741SMCJ64CA-M3/9AT Datasheet

Current PartRFQ

SMCJ64CA-E3/57T

Vishay General Semiconductor - Diodes DivisionIn Stock: 5966SMCJ64CA-E3/57T Datasheet

DirectRFQ

SMCJ64CA

MeritekIn Stock: 9946SMCJ64CA Datasheet

DirectRFQ

SMCJ64CA

MeritekIn Stock: 9946SMCJ64CA Datasheet

DirectRFQ

SMCJ64CA-TP

Micro Commercial CoIn Stock: 2862SMCJ64CA-TP Datasheet

DirectRFQ

5.0SMDJ64CA

MDE Semiconductor IncIn Stock: 214005.0SMDJ64CA Datasheet

MFR RecommendedRFQ

SMDJ64CA

Alpha & Omega Semiconductor Inc.In Stock: 101359SMDJ64CA Datasheet

MFR RecommendedRFQ

SMDJ64CA-T7

Littelfuse Inc.In Stock: 837SMDJ64CA-T7 Datasheet

MFR RecommendedRFQ

SMLJ64CA

Bourns Inc.In Stock: 7640SMLJ64CA Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SMCJ64CA-M3/9AT are grouped based on strict electrical and mechanical parameter matching. The primary substitution criteria are:

Critical Matching Parameters:

• Voltage - Reverse Standoff (Typ): 64V
• Voltage - Breakdown (Min): 71.1V
• Voltage - Clamping (Max) @ Ipp: 103V
• Package / Case: DO-214AB, SMC
• Mounting Type: Surface Mount
• Type: Zener, Bidirectional (1 Channel)
• Operating Temperature Range: -55°C minimum to 150°C maximum
• RoHS3 Compliance

Substitution Categories:

Category 1 - Direct Electrical & Packaging Equivalents (14.6A Ipp): Parts maintaining identical peak pulse current specifications and packaging format. These include SMCJ64CA-E3/57T (Vishay, Cut Tape packaging) and SMCJ64CA (Meritek).

Category 2 - Higher Power Rated Alternatives (29.1-29.2A Ipp, 3000W): Parts with increased peak pulse current and power dissipation capacity while maintaining voltage parameters and DO-214AB packaging. These include SMDJ64CA-T7 (Littelfuse), SMDJ64CA (Alpha & Omega Semiconductor), and SMLJ64CA (Bourns).

Category 3 - Enhanced Power Density Alternative (48.6A Ipp, 5000W): The 5.0SMDJ64CA (MDE Semiconductor) offers significantly higher current and power handling while preserving all voltage specifications and package compatibility.

Category 4 - Extended Temperature Range Option: SMCJ64CA-TP (Micro Commercial Co) extends the upper operating temperature to 175°C while maintaining all other electrical parameters.

All substitute parts maintain the critical voltage parameters (64V standoff, 71.1V breakdown, 103V clamping) and surface mount DO-214AB package format required for direct circuit board compatibility.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Identical Specifications): SMCJ64CA-E3/57T and SMCJ64CA provide electrical and thermal equivalence to the SMCJ64CA-M3/9AT. Both maintain 14.6A peak pulse current, 1500W power dissipation, and -55°C to 150°C operating range. Selection between these options depends on packaging format availability: SMCJ64CA-E3/57T is supplied in Cut Tape & Digi-Reel format, while SMCJ64CA-M3/9AT uses Tape & Reel packaging.

For Enhanced Transient Protection (Higher Current Capacity): SMDJ64CA, SMDJ64CA-T7, and SMLJ64CA offer doubled peak pulse current (29.1-29.2A) and doubled power dissipation (3000W) while maintaining identical voltage specifications. These parts are suitable for applications requiring greater transient energy absorption without circuit redesign. All three maintain RoHS3 compliance and -55°C to 150°C operating range (SMDJ64CA-T7 extends to -65°C minimum).

For Maximum Transient Energy Handling: 5.0SMDJ64CA provides 48.6A peak pulse current and 5000W power dissipation, representing a 3.3x increase in transient energy capacity. This part maintains all voltage parameters and RoHS3 compliance, suitable for high-energy transient environments.

For Extended Temperature Operation: SMCJ64CA-TP extends the upper operating temperature to 175°C while maintaining all other electrical specifications of the original part, applicable to high-ambient-temperature applications.

All substitute parts are Active status products with RoHS3 compliance and REACH Unaffected or REACH Affected status as specified. Component selection should be based on application transient energy requirements, thermal environment, and packaging format constraints.

Frequently Asked Questions (FAQ)

Q: Can SMDJ64CA-T7 replace SMCJ64CA-M3/9AT in my circuit? A: Yes. Both parts share identical voltage specifications (64V standoff, 71.1V breakdown, 103V clamping) and DO-214AB package format. SMDJ64CA-T7 provides higher peak pulse current (29.1A vs. 14.6A) and power dissipation (3000W vs. 1500W), making it a compatible upgrade for transient protection. The extended lower temperature range (-65°C vs. -55°C) provides additional margin in cold environments.

Q: What is the difference between SMCJ64CA-M3/9AT and SMCJ64CA-E3/57T? A: Both parts are manufactured by Vishay and share identical electrical specifications: 64V standoff, 71.1V breakdown, 103V clamping, 14.6A peak pulse current, and 1500W power dissipation. The primary difference is packaging format: SMCJ64CA-M3/9AT is supplied in Tape & Reel (TR) format, while SMCJ64CA-E3/57T uses Cut Tape (CT) & Digi-Reel format. Selection depends on assembly equipment compatibility and supply chain availability.

Q: Is 5.0SMDJ64CA compatible with the original SMCJ64CA-M3/9AT footprint? A: Yes. Both parts use the DO-214AB (SMC) surface mount package, ensuring identical PCB footprint and land pattern compatibility. The 5.0SMDJ64CA provides significantly higher transient current handling (48.6A vs. 14.6A) and power dissipation (5000W vs. 1500W) while maintaining all voltage specifications. This part is suitable for direct board-level substitution in applications requiring enhanced transient protection.

Q: Are all substitute parts RoHS3 compliant? A: Yes. All listed substitute parts maintain RoHS3 compliance. SMLJ64CA carries REACH Affected status, while other parts are REACH Unaffected. Compliance verification should be confirmed with the specific supplier for your procurement.

Q: What determines whether a part can substitute for SMCJ64CA-M3/9AT? A: Substitution is determined by matching the following parameters: Voltage - Reverse Standoff (64V), Voltage - Breakdown (71.1V minimum), Voltage - Clamping (103V maximum), Package / Case (DO-214AB, SMC), Mounting Type (Surface Mount), and Zener Type (Bidirectional, 1 Channel). Peak pulse current and power dissipation may be equal or higher without affecting circuit compatibility. Operating temperature range must encompass the application requirements.

Q: Can I use SMLJ64CA in place of SMCJ64CA-M3/9AT? A: Yes. SMLJ64CA maintains identical voltage specifications (64V standoff, 71.1V breakdown, 103V clamping) and DO-214AB package format. It provides 29.2A peak pulse current and 3000W power dissipation, representing a 2x increase over the original part. This substitution is compatible for direct board replacement and provides enhanced transient protection margin.

Q: What is the advantage of using higher-rated alternatives like SMDJ64CA or 5.0SMDJ64CA? A: Higher-rated alternatives provide increased transient energy absorption capacity without requiring circuit modifications. SMDJ64CA and SMLJ64CA double the peak pulse current and power dissipation (3000W), while 5.0SMDJ64CA provides 3.3x the transient energy capacity (5000W). These upgrades are beneficial in applications with severe transient environments or where additional protection margin is required.