SMLJ100CA-TP Equivalent & Substitute Parts

Part Overview

The SMLJ100CA-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 100V 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 768 units available in bulk packaging. Identifying equivalent substitute parts is necessary to ensure design flexibility, manage supply chain continuity, and accommodate alternative sourcing requirements while maintaining identical electrical and mechanical performance specifications.

Substiute Parts

SMLJ100CA-TP

Micro Commercial CoIn Stock: 790SMLJ100CA-TP Datasheet

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SMDJ100CA

Alpha & Omega Semiconductor Inc.In Stock: 10098SMDJ100CA Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SMLJ100CA-TP are identified based on strict electrical and mechanical parameter matching. The following criteria determine substitution eligibility:

Critical Matching Parameters:

• Voltage - Reverse Standoff (Typ): 100V
• Voltage - Breakdown (Min): 111V
• Voltage - Clamping (Max) @ Ipp: 162V
• Current - Peak Pulse (10/1000µs): 18.6A
• Power - Peak Pulse: 3000W
• Package / Case: DO-214AB, SMC
• Mounting Type: Surface Mount
• Bidirectional Channels: 1
• Type: Zener

The SMDJ100CA manufactured by Alpha & Omega Semiconductor Inc. meets all critical electrical specifications and package requirements, qualifying it as a direct electrical equivalent. Both parts share identical voltage ratings, peak pulse current capacity, and power dissipation ratings. The physical package format (DO-214AB, SMC) and surface-mount configuration are identical, ensuring mechanical compatibility in existing PCB layouts.

Parameter Comparison

Engineering Selection Recommendations

SMDJ100CA as Direct Substitute:

The SMDJ100CA qualifies as a direct electrical and mechanical substitute for the SMLJ100CA-TP based on complete parameter alignment across all critical specifications. Both components are active products with identical REACH and ECCN compliance status, ensuring regulatory consistency.

Operating Temperature Consideration:

The SMDJ100CA specifies a maximum junction temperature of 150°C, compared to 175°C for the SMLJ100CA-TP. Applications requiring sustained operation at junction temperatures between 150°C and 175°C must retain the original SMLJ100CA-TP. For applications with maximum junction temperatures at or below 150°C, the SMDJ100CA operates within its rated thermal envelope.

Packaging Format Difference:

The SMLJ100CA-TP is supplied in bulk packaging, while the SMDJ100CA is supplied in Tape & Reel (TR) format. This difference affects procurement and assembly processes but does not impact electrical or mechanical performance. Component selection should account for manufacturing workflow requirements and inventory management practices.

Frequently Asked Questions (FAQ)

Q: Can SMDJ100CA replace SMLJ100CA-TP in all applications?

A: The SMDJ100CA is electrically and mechanically equivalent for applications where the maximum junction temperature does not exceed 150°C. If your design requires operation at junction temperatures between 150°C and 175°C, the SMLJ100CA-TP must be used. Both parts are identical in voltage ratings, current capacity, power dissipation, and package format.

Q: What is the difference between bulk and Tape & Reel packaging?

A: Bulk packaging supplies loose components, while Tape & Reel (TR) packaging provides components on continuous tape for automated assembly equipment. The electrical and mechanical specifications of the component itself are unchanged. Selection depends on your manufacturing process and assembly capabilities.

Q: Are the electrical specifications truly identical between these parts?

A: Yes. Both the SMLJ100CA-TP and SMDJ100CA share identical specifications for reverse standoff voltage (100V), breakdown voltage (111V minimum), clamping voltage (162V maximum), peak pulse current (18.6A), and peak pulse power (3000W). They are both Zener-type TVS diodes in DO-214AB packages.

Q: Do both parts meet the same regulatory requirements?

A: Yes. Both components have REACH Unaffected status and EAR99 ECCN classification, ensuring equivalent regulatory compliance for export and environmental standards.

Q: What should I verify before substituting SMDJ100CA for SMLJ100CA-TP?

A: Verify that your application's maximum junction temperature requirement does not exceed 150°C. Confirm that your assembly process can accommodate Tape & Reel packaging if switching from bulk supply. All other electrical and mechanical parameters are directly compatible.