SMLJ150CA-TP Equivalent & Substitute Parts

Part Overview

The SMLJ150CA-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 150V 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 849 units available in bulk packaging. Substitute parts are identified to address inventory availability, packaging format preferences, or supply chain requirements while maintaining electrical and mechanical compatibility.

Substiute Parts

SMLJ150CA-TP

Micro Commercial CoIn Stock: 871SMLJ150CA-TP Datasheet

Current PartRFQ

SMDJ150CA

Alpha & Omega Semiconductor Inc.In Stock: 1342SMDJ150CA Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SMLJ150CA-TP is determined by strict equivalence across the following critical parameters:

Electrical Equivalence Requirements:

• Voltage - Reverse Standoff (Typ): 150V
• Voltage - Breakdown (Min): 167V
• Voltage - Clamping (Max) @ Ipp: 243V
• Current - Peak Pulse (10/1000µs): 12.4A
• Power - Peak Pulse: 3000W
• Bidirectional Channels: 1
• Type: Zener

Mechanical Equivalence Requirements:

• Package / Case: DO-214AB, SMC
• Mounting Type: Surface Mount

Compliance Requirements:

• Category: Transient Voltage Suppressors (TVS)
• Product Status: Active
• REACH Status: REACH Unaffected
• ECCN: EAR99

The SMDJ150CA manufactured by Alpha & Omega Semiconductor Inc. meets all electrical and mechanical equivalence criteria. The primary difference is packaging format (Tape & Reel versus Bulk) and operating temperature range maximum (150°C versus 175°C).

Parameter Comparison

Engineering Selection Recommendations

SMLJ150CA-TP Selection Criteria:

• Primary choice when bulk packaging is required for high-volume manufacturing or inventory consolidation
• Preferred for applications requiring maximum operating junction temperature of 175°C
• Suitable for general-purpose interface protection with no specific packaging automation constraints

SMDJ150CA Selection Criteria:

• Appropriate when Tape & Reel packaging is required for automated pick-and-place assembly processes
• Acceptable for applications where maximum operating junction temperature of 150°C meets thermal design requirements
• Both parts maintain identical electrical performance and mechanical compatibility in DO-214AB (SMC) package format

Both parts carry Active product status and REACH Unaffected compliance designation, confirming ongoing manufacturer support and regulatory alignment. Selection between these parts is driven by packaging format availability and application-specific temperature operating range requirements, not by electrical performance differences.

Frequently Asked Questions (FAQ)

Q: Can SMDJ150CA be used as a direct replacement for SMLJ150CA-TP in all applications?

A: SMDJ150CA is electrically and mechanically equivalent to SMLJ150CA-TP across all critical TVS diode parameters: voltage ratings, peak pulse current, power dissipation, and package format. The only difference is the maximum operating junction temperature (150°C versus 175°C). Substitution is valid for applications where the circuit operates below 150°C junction temperature.

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

A: Bulk packaging (SMLJ150CA-TP) supplies components loose in a container, suitable for manual assembly or batch processing. Tape & Reel packaging (SMDJ150CA) supplies components on continuous tape in reels, optimized for automated surface-mount assembly equipment. Both formats contain identical components with identical electrical specifications.

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

A: Both SMLJ150CA-TP and SMDJ150CA share identical compliance status: REACH Unaffected, ECCN EAR99, and Active product status. No compliance or certification differences exist between these parts.

Q: What determines whether a TVS diode can substitute for another?

A: Substitution eligibility requires exact equivalence across voltage ratings (reverse standoff, breakdown, and clamping voltages), peak pulse current, power dissipation, channel configuration, package type, and mounting method. Operating temperature range and packaging format may differ without affecting electrical substitutability, provided application requirements are met.

Q: Can I use SMDJ150CA if my application requires 175°C junction temperature operation?

A: No. SMDJ150CA is rated to 150°C maximum junction temperature. Applications requiring 175°C operation must use SMLJ150CA-TP or identify an alternative part with equivalent electrical specifications and higher temperature rating.