SMLJ64CA-TP Equivalent & Substitute Parts

Part Overview

The SMLJ64CA-TP is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Micro Commercial Co, designed for general-purpose interface protection applications. This surface-mount component operates with a 64V reverse standoff voltage and provides 3000W peak pulse power dissipation in a compact DO-214AB (SMC) package. The part is currently in active production status with 1123 pieces available in inventory. Identifying equivalent substitute parts is necessary to ensure supply chain continuity, optimize procurement costs, and maintain design flexibility across manufacturing environments.

Substiute Parts

SMLJ64CA-TP

Micro Commercial CoIn Stock: 1162SMLJ64CA-TP Datasheet

Current PartRFQ

SMDJ64CA

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

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SMLJ64CA-TP are identified based on strict electrical and mechanical parameter matching within the TVS diode category. The substitution criteria are:

Critical Matching Parameters:

• Voltage - Reverse Standoff (Typ): 64V
• Voltage - Breakdown (Min): 71.1V
• Voltage - Clamping (Max) @ Ipp: 103V
• Current - Peak Pulse (10/1000µs): 29.2A
• Power - Peak Pulse: 3000W
• Bidirectional Channels: 1
• Package / Case: DO-214AB, SMC
• Mounting Type: Surface Mount
• Type: Zener

The SMDJ64CA manufactured by Alpha & Omega Semiconductor Inc. meets all critical electrical parameters and package specifications. Both parts share identical voltage ratings, peak pulse current capacity, and power dissipation characteristics. The mechanical form factor and surface-mount compatibility are equivalent, enabling direct substitution in PCB layouts and assembly processes.

Parameter Comparison

Engineering Selection Recommendations

SMDJ64CA Substitution Basis:

The SMDJ64CA is a direct electrical equivalent to the SMLJ64CA-TP for applications requiring 64V TVS protection with 3000W peak pulse power handling. Both components are active products with identical regulatory compliance status (REACH Unaffected, EAR99 classification). The electrical performance parameters—including reverse standoff voltage, breakdown voltage, clamping voltage, and peak pulse current—are fully matched.

Temperature Range Consideration:

The SMDJ64CA operates across -55°C to 150°C (TJ), which is 25°C narrower than the SMLJ64CA-TP range of -55°C to 175°C (TJ). Component selection should verify that the application's maximum junction temperature requirement does not exceed 150°C. For applications operating within this narrower range, the SMDJ64CA provides equivalent protection performance.

Supply and Availability:

The SMDJ64CA maintains significantly higher inventory availability (101,300 pieces) compared to the SMLJ64CA-TP (1,123 pieces), supporting extended production runs and reducing procurement lead times.

Frequently Asked Questions (FAQ)

Q: Can the SMDJ64CA replace the SMLJ64CA-TP in all applications?

A: The SMDJ64CA is electrically equivalent for all voltage and current specifications. However, applications requiring junction temperatures above 150°C must retain the SMLJ64CA-TP, which is rated to 175°C (TJ).

Q: Are the package dimensions identical between these parts?

A: Both components use the DO-214AB (SMC) surface-mount package. PCB footprints and assembly processes are compatible without modification.

Q: What is the difference in peak pulse power rating?

A: Both parts are rated for 3000W peak pulse power dissipation. No difference exists in this parameter.

Q: Do these parts have the same regulatory compliance?

A: Yes. Both the SMLJ64CA-TP and SMDJ64CA are REACH Unaffected, classified as EAR99, and share the same HTSUS code (8541.10.0080).

Q: Which part should be selected for new designs?

A: For new designs, either part is acceptable based on temperature requirements. The SMDJ64CA offers superior supply availability. If the application requires operation above 150°C junction temperature, the SMLJ64CA-TP is required.

Q: Are there any performance differences in clamping voltage?

A: No. Both parts clamp at a maximum of 103V at peak pulse current (Ipp), providing identical transient suppression performance.

Q: Can these parts be mixed in the same production batch?

A: Yes, provided the application's maximum junction temperature does not exceed 150°C. Both parts meet identical electrical specifications within this constraint.