SMLJ26CA-TP Equivalent & Substitute Parts

Part Overview

The SMLJ26CA-TP is a unidirectional transient voltage suppressor (TVS) diode manufactured by Micro Commercial Co, designed for general-purpose overvoltage protection in surface-mount applications. This component operates with a 26V reverse standoff voltage and provides 3000W peak pulse power dissipation in a DO-214AB (SMC) package. The part is currently in active production status with full RoHS3 compliance and unlimited moisture sensitivity rating. Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained across the specified parameter range.

Substiute Parts

SMLJ26CA-TP

Micro Commercial CoIn Stock: 3978SMLJ26CA-TP Datasheet

Current PartRFQ

SMDJ26CA

Alpha & Omega Semiconductor Inc.In Stock: 23506SMDJ26CA Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SMLJ26CA-TP is determined by strict equivalence across the following critical parameters:

• Voltage - Reverse Standoff (Typ): 26V
• Voltage - Clamping (Max) @ Ipp: 42.1V
• Current - Peak Pulse (10/1000µs): ≥71.2A
• Power - Peak Pulse: 3000W
• Package / Case: DO-214AB (SMC)
• Mounting Type: Surface Mount
• RoHS Status: ROHS3 Compliant

The SMDJ26CA from Alpha & Omega Semiconductor Inc. meets all substitution criteria with matching voltage ratings, equivalent peak pulse current specification (71.3A), identical power dissipation rating, and identical package configuration. Both parts maintain active product status and full regulatory compliance.

Parameter Comparison

Engineering Selection Recommendations

Both the SMLJ26CA-TP and SMDJ26CA are active production components with full RoHS3 compliance and REACH unaffected status. Selection between these parts should be based on:

• Thermal Operating Range: The SMLJ26CA-TP supports operation to 175°C junction temperature, while the SMDJ26CA is rated to 150°C. Applications requiring sustained operation above 150°C require the SMLJ26CA-TP.
• Inventory Availability: The SMDJ26CA maintains higher stock levels (23,400 pcs vs. 3,885 pcs), which may influence procurement timelines.
• Electrical Performance: Both parts deliver equivalent voltage suppression and current handling within specified tolerances.
• Regulatory Compliance: Both parts satisfy identical compliance requirements for RoHS3, REACH, and export classification (EAR99).

Frequently Asked Questions (FAQ)

Q: Can SMDJ26CA replace SMLJ26CA-TP in all applications?

A: The SMDJ26CA is electrically and mechanically equivalent for applications operating within -55°C to 150°C junction temperature. Applications requiring operation above 150°C must use the SMLJ26CA-TP.

Q: Are the DO-214AB packages from both manufacturers identical?

A: Yes. Both parts use the DO-214AB (SMC) surface-mount package with identical footprint and land pattern compatibility.

Q: What is the difference between peak pulse current ratings of 71.2A and 71.3A?

A: Both values fall within the same specification tolerance band for 26V TVS diodes in this package class. The 0.1A difference is within normal manufacturing variation and does not affect circuit performance.

Q: Do both parts require the same PCB layout considerations?

A: Yes. Identical package geometry, mounting type, and thermal characteristics allow direct substitution of PCB layout and assembly processes.

Q: Are there any compliance differences between these parts?

A: No. Both parts maintain identical RoHS3, REACH, and export classification status (EAR99).