Equivalent & Substitute Parts for SMCG40A-M3/9AT

Part Overview

The SMCG40A-M3/9AT from Vishay General Semiconductor - Diodes Division is a surface mount Transient Voltage Suppressor (TVS) diode, suitable for general-purpose voltage surge protection. It belongs to the TransZorb® series and features a Zener type construction, 40V reverse standoff voltage, and a peak pulse power of 1500W. This device is active and available in tape & reel packaging. Identifying alternative models is essential for inventory management, multi-sourcing, and procurement efficiency when direct supply is limited or to ensure supply chain continuity.

Substiute Parts

SMCG40A-M3/9AT

Vishay General Semiconductor - Diodes DivisionIn Stock: 923SMCG40A-M3/9AT Datasheet

Current PartRFQ

SMCG40A-E3/57T

Vishay General Semiconductor - Diodes DivisionIn Stock: 1189SMCG40A-E3/57T Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution is based strictly on matching the following key parameters:

• Series and type
• Reverse standoff voltage
• Breakdown voltage (minimum)
• Clamping voltage (maximum)
• Peak pulse current
• Peak pulse power rating
• Mounting type
• Package / case

Each substitute part must offer compliance (RoHS, REACH) equivalent to the main part. Only parts explicitly referenced as substitutes are considered.

Parameter Comparison

Engineering Selection Recommendations

Both SMCG40A-M3/9AT and its specified substitute SMCG40A-E3/57T are active and listed as ROHS3 compliant, REACH unaffected, and classified with MSL 1 (Unlimited). Both are categorized as EAR99 for ECCN and share the same HTSUS code. Based on product status and compliance, SMCG40A-E3/57T is suitable for direct substitution within engineering and procurement processes.

Frequently Asked Questions (FAQ)

Q1: What parameters are critical for selecting substitute TVS diodes in this category?
A1: Critical parameters include type, unidirectional channels, reverse standoff voltage, breakdown voltage, clamping voltage, peak pulse current, peak pulse power, mounting type, and package/case.

Q2: Are the package and mounting types fully compatible between SMCG40A-M3/9AT and its substitute SMCG40A-E3/57T?
A2: Both models utilize the DO-215AB, SMC Gull Wing package and are designed for surface mount applications.

Q3: Do these parts share the same compliance and environmental standards?
A3: Both parts are ROHS3 compliant, REACH unaffected, and classified with MSL 1 (Unlimited).

Q4: When substituting, is there any difference in electrical parameters between SMCG40A-M3/9AT and SMCG40A-E3/57T?
A4: All key electrical parameters provided are identical.

Q5: Is there a difference in Supplier Device Package naming between these parts?
A5: SMCG40A-M3/9AT lists DO-214AB (SMCG), while SMCG40A-E3/57T lists SMCG (DO-215AB). Both refer to the same SMC surface mount package per the information provided.