SMA6F18A-M3/6B Equivalent & Substitute Parts Reference

Part Overview

The SMA6F18A-M3/6B, manufactured by Vishay General Semiconductor - Diodes Division, is a single-channel unidirectional Transient Voltage Suppressor (TVS) diode with a reverse standoff voltage of 18V and a clamping voltage of 33.2V in the DO-221AC (SlimSMA) surface-mount package. This component provides general-purpose protection against voltage transients, with a peak pulse current of 102A and peak pulse power dissipation of 4000W (4kW). The part is active and RoHS3 compliant.

Sourcing alternative models for the SMA6F18A-M3/6B is essential for design flexibility, procurement reliability, and ensuring uninterrupted production in the event of inventory fluctuations or supply chain constraints.

Substiute Parts

SMA6F18A-M3/6B

Vishay General Semiconductor - Diodes DivisionIn Stock: 652SMA6F18A-M3/6B Datasheet

Current PartRFQ

SMA6J18A-TP

Micro Commercial CoIn Stock: 3823SMA6J18A-TP Datasheet

MFR RecommendedRFQ

SMAJ18A-TP

Micro Commercial CoIn Stock: 4602SMAJ18A-TP Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SMA6F18A-M3/6B are grouped by evaluating identical or closely matching key parameters explicitly provided for the TVS diode category. The essential parameters for substitution include:

• Category
• Type
• Number of Channels (Unidirectional)
• Voltage - Reverse Standoff (Typ)
• Voltage - Breakdown (Min)
• Voltage - Clamping (Max) @ Ipp
• Surface Mount Package
• RoHS and REACH compliance
• Product status

Only substitute parts meeting these defined parameters are included.

Parameter Comparison

Engineering Selection Recommendations

The SMA6F18A-M3/6B, SMA6J18A-TP, and SMAJ18A-TP are all RoHS3 compliant, have MSL 1 (unlimited) classification, and are REACH unaffected with ECCN EAR99. All products are listed as active status. Selection based on compliance and product status is permitted for these alternatives.

Frequently Asked Questions (FAQ)

Q1: What are the main criteria for selecting a substitute for the SMA6F18A-M3/6B?
A1: The main criteria are matching category, unidirectional channel count, reverse standoff voltage, breakdown voltage, RoHS and REACH compliance, product status, and equivalent surface mount packaging.

Q2: Are there any differences in the package or mounting between SMA6F18A-M3/6B and the substitutes?
A2: The SMA6F18A-M3/6B uses a DO-221AC (SlimSMA) package, while the substitutes use DO-214AC (SMA).

Q3: Is RoHS or REACH compliance consistent among the original and substitute parts?
A3: All listed parts are ROHS3 compliant and REACH unaffected.

Q4: Can the alternative TVS diodes be used in general-purpose applications?
A4: All parts list "General Purpose" under applications.

Q5: Are part status and compliance sufficient for substitute selection in regulated environments?
A5: All parts have active status and necessary compliance certifications as provided.

Q6: Is the component moisture sensitivity level (MSL) different between these parts?
A6: All parts have MSL 1 (Unlimited).