Equivalent & Substitute Parts for SMLJ54A-TP Transient Voltage Suppressor (TVS) Diode

Part Overview

The Micro Commercial Co SMLJ54A-TP is a Transient Voltage Suppressor (TVS) diode designed for general purpose applications requiring voltage clamp protection. It features a unidirectional channel, Zener diode type, 54V reverse standoff voltage, 87.1V clamping voltage, 34.4A peak pulse current, and 3000W peak pulse power. It comes in a surface mount DO-214AB (SMC) package and supports an operating temperature range of -55°C to 175°C. The part status is Active with REACH unaffected compliance. Identifying alternative models is necessary for inventory management, supply chain security, or design flexibility.

Substiute Parts

SMLJ54A-TP

Micro Commercial CoIn Stock: 889SMLJ54A-TP Datasheet

Current PartRFQ

SMDJ54A

Alpha & Omega Semiconductor Inc.In Stock: 12133SMDJ54A Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution suitability is determined by matching key electrical and mechanical parameters:

• Type (Zener, unidirectional channel)
• Voltage specifications (reverse standoff, breakdown, clamping)
• Current and power capabilities (peak pulse current, peak pulse power)
• Package and mounting type (DO-214AB, SMC; surface mount)
• Operating temperature range
• Application compatibility (general purpose) Main substitutes are included only if these parameters are identical or within provided bounds.

Parameter Comparison

Engineering Selection Recommendations

Both SMLJ54A-TP and SMDJ54A have Active status and show REACH unaffected compliance. Selection under inventory or supply chain constraints can consider either model where identical parameters are required. No further compliance or certification differences are noted between the listed substitute and main part.

Frequently Asked Questions (FAQ)

Q: What parameters ensure that SMDJ54A is a substitute for SMLJ54A-TP?
A: Substitution is confirmed by matching type, channel number, standoff voltage, breakdown voltage, clamping voltage, peak pulse current, peak pulse power, package, mounting type, application, and compliance status.

Q: Are there any differences in operating temperature between SMLJ54A-TP and SMDJ54A?
A: SMLJ54A-TP supports -55°C ~ 175°C (TJ), while SMDJ54A supports -55°C ~ 150°C (TJ). Both are specified for general purpose environments within these ranges.

Q: Is there any difference in mechanical packaging that affects compatibility?
A: Both devices utilize the DO-214AB, SMC surface mount package and have matching supplier device package designations.

Q: Are there any compliance or regulatory considerations between the substitute and the main part?
A: Both parts are REACH unaffected and share ECCN EAR99 and HTSUS 8541.10.0080 classification.

Q: Does the slight difference in peak pulse current affect substitute suitability?
A: The peak pulse current values differ marginally (34.4A vs. 34.5A); both are specified for 54V unidirectional protection in general purpose applications according to provided parameters.