SMLJ75A-TP Equivalent & Substitute Parts Reference

Part Overview

SMLJ75A-TP is a transient voltage suppressor (TVS) diode manufactured by Micro Commercial Co, designed for general-purpose applications requiring high peak pulse power protection. It is classified as a 121V Clamp, 24.8A Ipp, unidirectional type zener TVS diode with surface mount DO-214AB (SMC) packaging. The part is currently active and available in bulk packaging. Seeking alternative models is necessary for supply chain flexibility, procurement efficiency, and scenarios involving inventory constraints.

Substiute Parts

SMLJ75A-TP

Micro Commercial CoIn Stock: 722SMLJ75A-TP Datasheet

Current PartRFQ

SMDJ75A

Alpha & Omega Semiconductor Inc.In Stock: 1303SMDJ75A Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution within the Transient Voltage Suppressors (TVS) category is determined strictly by identical or equivalent key electrical and mechanical parameters. The following substitution logic is applied: manufacturer part number, type, channel configuration, reverse standoff voltage, breakdown voltage, clamping voltage at Ipp, peak pulse current, peak pulse power, operating temperature range, mounting type, and package/case must all match precisely to qualify as a substitute.

Parameter Comparison

Engineering Selection Recommendations

Both SMLJ75A-TP and its substitute SMDJ75A are currently classified as "Active" and can be considered for direct interchange based on supplied parameters. SMDJ75A is ROHS3 compliant and REACH unaffected, matching regulatory requirements. The substitute offers a slightly different maximum operating junction temperature. Selection should align with operating temperature requirements and industry compliance as per project specifications.

Frequently Asked Questions (FAQ)

Q1: What parameters must match to substitute SMLJ75A-TP with another part?
A1: Required matching parameters for substitution include type, unidirectional channel count, reverse standoff voltage, breakdown voltage, clamping voltage at Ipp, peak pulse current, peak pulse power, mounting type, and package/case.

Q2: Is SMDJ75A compatible with SMLJ75A-TP in terms of package and mounting?
A2: Both parts utilize the DO-214AB, SMC surface mount package and are mechanically compatible.

Q3: Are operating temperature ranges different for the substitute?
A3: SMLJ75A-TP specifies -55°C to 175°C (TJ), while SMDJ75A specifies -55°C to 150°C (TJ). Review system thermal requirements when selecting a substitute.

Q4: Does compliance status affect interchangeability?
A4: Compliance status, including ROHS and REACH, can be a factor, but both parts above are REACH unaffected; SMDJ75A is ROHS3 compliant.

Q5: Why is it necessary to ensure exact channel and electrical ratings?
A5: TVS diode selection for surge and overvoltage protection requires precise alignment of electrical ratings and package type to prevent performance issues.