SMCG48A-M3/9AT Equivalent & Substitute Parts Reference

Part Overview

The SMCG48A-M3/9AT, manufactured by Vishay General Semiconductor - Diodes Division, is a Transient Voltage Suppressor (TVS) diode designed for general-purpose overvoltage protection applications. This component offers a 48V reverse standoff voltage, 77.4V maximum clamping voltage, and can withstand a peak pulse current of 19.4A with a 1500W peak pulse power rating. It features a single unidirectional Zener-type channel and comes in a surface-mount DO-215AB (SMCG) package, compliant with ROHS3 and unaffected by REACH requirements. The part holds an active status, but finding alternative models is necessary to mitigate risks related to supply continuity, inventory management, and potential future obsolescence.

Substiute Parts

SMCG48A-M3/9AT

Vishay General Semiconductor - Diodes DivisionIn Stock: 749SMCG48A-M3/9AT Datasheet

Current PartRFQ

SMCG48A-E3/57T

Vishay General Semiconductor - Diodes DivisionIn Stock: 2446SMCG48A-E3/57T Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SMCG48A-M3/9AT are determined strictly by matching the following key parameters: Category (Transient Voltage Suppressors), voltage ratings (Reverse Standoff Voltage, Breakdown Voltage, Clamping Voltage), peak pulse current and power, type (Zener), channel configuration (unidirectional), surface-mount package compatibility (DO-215AB, SMC/SMCG), RoHS3 compliance, REACH unaffected status, and identical or unlimited MSL. Only parts satisfying all these requirements are grouped as direct substitutes.

Parameter Comparison

Engineering Selection Recommendations

Both SMCG48A-M3/9AT and SMCG48A-E3/57T are listed as active parts and conform to ROHS3 and REACH requirements with unlimited moisture sensitivity level classifications. Given identical product status and environmental compliance, either part number is appropriate for applications requiring a 48V, 1500W TVS diode in the specified package.

Frequently Asked Questions (FAQ)

Q1: Which parameters are critical when selecting a substitute for the SMCG48A-M3/9AT TVS diode?
A1: The most critical parameters are the voltage ratings (reverse standoff, breakdown, clamping), peak pulse current and power, number of channels, device type (Zener, unidirectional), mounting type, and package/case.

Q2: Is the SMCG48A-E3/57T an exact substitute for the SMCG48A-M3/9AT?
A2: The SMCG48A-E3/57T matches all listed electrical, mechanical, and compliance parameters of the SMCG48A-M3/9AT.

Q3: Are there differences in compliance or reliability between the substitute and the main part?
A3: Both parts are ROHS3 compliant, REACH unaffected, and have an MSL rating of 1 (Unlimited), with identical environmental and regulatory classifications.

Q4: Are the package and footprint identical between SMCG48A-M3/9AT and SMCG48A-E3/57T?
A4: Both use the DO-215AB, SMC Gull Wing package, ensuring footprint compatibility.

Q5: How should one ensure the substitute part fits directly into an existing design?
A5: Match the package/case, supplier device package designation, and mounting type as provided in the comparison table. All listed parameters for these parts are identical.