M1MA152AT1 Equivalent & Substitute Parts

Part Overview

The M1MA152AT1 is a general-purpose rectifier diode rated for 80 V DC reverse voltage and 100 mA average rectified current in a surface mount SC-59 package. This component is classified as obsolete, which necessitates identification of active equivalent parts for ongoing design and procurement requirements. The M1MA152AT1 maintains full electrical and mechanical compatibility with its active substitute, differing only in product status and packaging configuration.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	80	V
Current - Average Rectified (Io)	100	mA
Voltage - Forward (Vf) (Max) @ If	1.2 @ 100 mA	V
Reverse Recovery Time (trr)	3	ns
Current - Reverse Leakage @ Vr	100 @ 75 V	nA
Capacitance @ Vr, F	2 @ 0V, 1MHz	pF
Operating Temperature - Junction (Max)	150	°C
Package / Case	TO-236-3, SC-59, SOT-23-3	—
Mounting Type	Surface Mount	—

Substitute Part Grouping Explanation

Substitution of the M1MA152AT1 with the M1MA152KT1G is based on identical electrical performance across all critical parameters. Both parts share the same base product number (M1MA152) and maintain equivalent specifications for reverse voltage, forward current, forward voltage drop, reverse recovery time, reverse leakage current, and junction capacitance. Both components utilize the same package designation (TO-236-3, SC-59, SOT-23-3) and surface mount mounting technology.

The primary distinction between these parts is product status and packaging format. The M1MA152AT1 is classified as obsolete, while the M1MA152KT1G is active. The M1MA152KT1G is supplied in Tape & Reel (TR) packaging, whereas the M1MA152AT1 packaging format is not specified in the provided data. Additionally, the M1MA152KT1G meets ROHS3 compliance requirements, whereas the M1MA152AT1 is RoHS non-compliant.

Substitution is valid when the following conditions are met:

Reverse voltage rating of 80 V or greater
Average rectified current capacity of 100 mA or greater
Surface mount SC-59 package compatibility
Small signal diode speed classification
Operating temperature range supporting 150°C maximum junction temperature

Parameter Comparison

Parameter	M1MA152AT1	M1MA152KT1G	Match
Manufacturer	onsemi	onsemi	Yes
Category	Diodes, Rectifiers	Diodes, Rectifiers	Yes
Voltage - DC Reverse (Vr) (Max)	80 V	80 V	Yes
Current - Average Rectified (Io)	100 mA	100 mA	Yes
Voltage - Forward (Vf) (Max) @ If	1.2 V @ 100 mA	1.2 V @ 100 mA	Yes
Speed	Small Signal ≤ 200mA (Io), Any Speed	Small Signal ≤ 200mA (Io), Any Speed	Yes
Reverse Recovery Time (trr)	3 ns	3 ns	Yes
Current - Reverse Leakage @ Vr	100 nA @ 75 V	100 nA @ 75 V	Yes
Capacitance @ Vr, F	2 pF @ 0V, 1MHz	2 pF @ 0V, 1MHz	Yes
Mounting Type	Surface Mount	Surface Mount	Yes
Package / Case	TO-236-3, SC-59, SOT-23-3	TO-236-3, SC-59, SOT-23-3	Yes
Operating Temperature - Junction (Max)	150°C	150°C	Yes
Product Status	Obsolete	Active	No
Packaging Format	Not specified	Tape & Reel (TR)	Different
RoHS Status	RoHS non-compliant	ROHS3 Compliant	No

Engineering Selection Recommendations

The M1MA152KT1G is the direct active equivalent for the obsolete M1MA152AT1. All electrical parameters, mechanical dimensions, and functional characteristics are identical between the two parts. Selection of the M1MA152KT1G is appropriate for new designs and replacement applications requiring the M1MA152AT1 specification.

The M1MA152KT1G offers the additional advantage of ROHS3 compliance, which satisfies regulatory requirements for products subject to Restriction of Hazardous Substances directives. The M1MA152AT1, being RoHS non-compliant, may present procurement and regulatory challenges for applications with environmental compliance mandates.

Both parts share identical REACH and ECCN classifications (REACH Unaffected, EAR99), indicating equivalent export and regulatory treatment.

The M1MA152KT1G is supplied in Tape & Reel packaging format, which is standard for high-volume surface mount assembly operations. Inventory availability for the M1MA152KT1G (39,400 pieces) exceeds that of the M1MA152AT1 (18,900 pieces), supporting long-term supply chain continuity.

Frequently Asked Questions (FAQ)

Q: Can the M1MA152KT1G directly replace the M1MA152AT1 in existing circuit designs?

A: Yes. The M1MA152KT1G is electrically and mechanically identical to the M1MA152AT1. All electrical parameters, including reverse voltage, forward current, forward voltage drop, reverse recovery time, and junction capacitance, are equivalent. Both components use the same SC-59 surface mount package.

Q: What is the primary reason for substituting the M1MA152AT1?

A: The M1MA152AT1 is classified as obsolete. The M1MA152KT1G is the active equivalent part from the same manufacturer (onsemi) with identical electrical specifications and packaging.

Q: Are there packaging differences between these parts?

A: The M1MA152KT1G is supplied in Tape & Reel (TR) format, which is standard for automated surface mount assembly. The packaging format for the M1MA152AT1 is not specified in the available data.

Q: Does the M1MA152KT1G meet RoHS compliance requirements?

A: Yes. The M1MA152KT1G is ROHS3 compliant. The M1MA152AT1 is RoHS non-compliant. For applications subject to RoHS directives, the M1MA152KT1G is the appropriate selection.

Q: Are the reverse voltage and current ratings identical?

A: Yes. Both parts are rated for 80 V DC reverse voltage and 100 mA average rectified current. Forward voltage drop is 1.2 V maximum at 100 mA for both parts.

Q: What is the reverse recovery time for both parts?

A: Both the M1MA152AT1 and M1MA152KT1G have a reverse recovery time of 3 nanoseconds, classifying them as small signal diodes suitable for high-frequency applications.

Q: Is the M1MA152KT1G suitable for high-temperature applications?

A: Both parts support a maximum junction temperature of 150°C, providing equivalent thermal performance for applications requiring elevated temperature operation.

Q: What are the REACH and export classification statuses?

A: Both parts share identical REACH status (REACH Unaffected) and ECCN classification (EAR99), indicating equivalent regulatory treatment for export and environmental compliance purposes.

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