M1MA152KT1 Equivalent & Substitute Parts

Part Overview

The M1MA152KT1 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, necessitating identification of active equivalent and substitute parts for new designs and production continuity. Active alternatives with matching or superior electrical characteristics are available from the same manufacturer and qualified cross-reference sources.

Key Parameters

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

Substitute Part Grouping Explanation

Substitute parts for the M1MA152KT1 are identified based on the following critical parameters:

Electrical Compatibility Criteria:

Voltage - DC Reverse (Vr) rating must equal or exceed 80 V
Current - Average Rectified (Io) rating must equal or exceed 100 mA
Forward voltage (Vf) characteristics must be compatible with circuit design
Reverse recovery time (trr) must support circuit switching requirements
Reverse leakage current must not exceed application limits

Mechanical Compatibility Criteria:

Mounting type: Surface Mount
Package compatibility: TO-236-3, SC-59, or SOT-23-3

Compliance Criteria:

Product status: Active preferred for new designs
RoHS compliance status
Moisture sensitivity level (MSL)

Substitute parts are classified into two categories: direct equivalents (identical electrical and mechanical specifications) and similar alternatives (equal or superior ratings with compatible packaging).

Parameter Comparison

Parameter	M1MA152KT1	M1MA152KT1G	MMBD914-E3-08
Manufacturer	onsemi	onsemi	Vishay General Semiconductor - Diodes Division
Product Status	Obsolete	Active	Active
Voltage - DC Reverse (Vr) (Max)	80 V	80 V	100 V
Current - Average Rectified (Io)	100 mA	100 mA	200 mA
Voltage - Forward (Vf) (Max) @ If	1.2 V @ 100 mA	1.2 V @ 100 mA	1 V @ 10 mA
Reverse Recovery Time (trr)	3 ns	3 ns	4 ns
Current - Reverse Leakage @ Vr	100 nA @ 75 V	100 nA @ 75 V	5 µA @ 75 V
Capacitance @ Vr, F	2 pF @ 0 V, 1 MHz	2 pF @ 0 V, 1 MHz	4 pF @ 0 V, 1 MHz
Mounting Type	Surface Mount	Surface Mount	Surface Mount
Package / Case	TO-236-3, SC-59, SOT-23-3	TO-236-3, SC-59, SOT-23-3	TO-236-3, SC-59, SOT-23-3
Supplier Device Package	SC-59	SC-59	SOT-23-3
Operating Temperature - Junction (Max)	150°C	150°C	150°C
RoHS Status	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant
Packaging Type	Tube	Tape & Reel (TR)	Tape & Reel (TR)
Inventory Status	913 Pcs New Original In Stock	39400 Pcs New Original In Stock	1586 Pcs New Original In Stock

Engineering Selection Recommendations

M1MA152KT1G (Direct Equivalent - Recommended for Direct Replacement)

The M1MA152KT1G is the primary substitute for the obsolete M1MA152KT1. Both parts are manufactured by onsemi and share identical electrical specifications: 80 V reverse voltage, 100 mA average rectified current, 1.2 V forward voltage at 100 mA, 3 ns reverse recovery time, and 2 pF capacitance. The M1MA152KT1G is active in production with significantly higher inventory availability (39,400 units). The M1MA152KT1G is ROHS3 compliant, whereas the original M1MA152KT1 is RoHS non-compliant. Both parts use SC-59 supplier device packaging and support the same operating temperature range to 150°C. The M1MA152KT1G is supplied in Tape & Reel packaging, suitable for automated assembly processes.

MMBD914-E3-08 (Similar Alternative - For Applications Requiring Enhanced Ratings)

The MMBD914-E3-08, manufactured by Vishay General Semiconductor - Diodes Division, provides superior electrical ratings while maintaining mechanical compatibility. This part offers 100 V reverse voltage (20 V higher than the M1MA152KT1), 200 mA average rectified current (100 mA higher), and 4 ns reverse recovery time. The MMBD914-E3-08 is active in production and ROHS3 compliant. The forward voltage characteristic differs (1 V @ 10 mA versus 1.2 V @ 100 mA), and reverse leakage is higher at 5 µA @ 75 V compared to 100 nA @ 75 V. The MMBD914-E3-08 uses SOT-23-3 supplier device packaging and is supplied in Tape & Reel format. This part is suitable for applications where higher voltage and current margins are beneficial, provided circuit design accommodates the different forward voltage and leakage characteristics.

Frequently Asked Questions (FAQ)

Q: Can M1MA152KT1G be used as a direct replacement for M1MA152KT1?

A: Yes. The M1MA152KT1G is a direct electrical and mechanical equivalent. Both parts share identical voltage ratings (80 V), current ratings (100 mA), forward voltage (1.2 V @ 100 mA), reverse recovery time (3 ns), and reverse leakage current (100 nA @ 75 V). Both use SC-59 packaging and support 150°C maximum junction temperature. The primary difference is product status: M1MA152KT1G is active in production, while M1MA152KT1 is obsolete.

Q: What is the difference between M1MA152KT1 and M1MA152KT1G packaging?

A: The M1MA152KT1 is supplied in tube packaging, while M1MA152KT1G is supplied in Tape & Reel (TR) format. Both use the same SC-59 supplier device package. Tape & Reel packaging is standard for automated surface mount assembly processes.

Q: Can MMBD914-E3-08 replace M1MA152KT1 in all applications?

A: MMBD914-E3-08 provides higher voltage (100 V versus 80 V) and current (200 mA versus 100 mA) ratings, making it suitable for applications requiring enhanced electrical margins. However, the forward voltage characteristic differs (1 V @ 10 mA versus 1.2 V @ 100 mA), and reverse leakage is significantly higher (5 µA @ 75 V versus 100 nA @ 75 V). Circuit design must accommodate these differences. MMBD914-E3-08 uses SOT-23-3 packaging, which is mechanically compatible with SC-59 applications.

Q: Are all substitute parts RoHS compliant?

A: M1MA152KT1G and MMBD914-E3-08 are both ROHS3 compliant. The original M1MA152KT1 is RoHS non-compliant. For applications requiring RoHS compliance, M1MA152KT1G is the recommended direct replacement.

Q: What is the reverse recovery time significance for these diodes?

A: Reverse recovery time (trr) determines how quickly the diode transitions from conducting to blocking state. M1MA152KT1 and M1MA152KT1G both have 3 ns trr, while MMBD914-E3-08 has 4 ns. For most general-purpose rectification applications, this 1 ns difference is not significant. Applications with high-frequency switching requirements should verify compatibility with circuit design.

Q: How do reverse leakage currents compare?

A: M1MA152KT1 and M1MA152KT1G both exhibit 100 nA reverse leakage at 75 V, indicating very low leakage. MMBD914-E3-08 has 5 µA reverse leakage at 75 V, which is 50 times higher. For applications sensitive to leakage current (such as precision analog circuits), M1MA152KT1G is the preferred choice.

Q: Are these parts suitable for high-frequency applications?

A: These are classified as small signal diodes with reverse recovery times between 3-4 ns. They are suitable for general-purpose rectification and moderate-frequency switching applications. For high-frequency applications above several megahertz, specific high-speed diode designs should be evaluated.

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