MBR12120LPS-TP Equivalent & Substitute Parts

Part Overview

The MBR12120LPS-TP is a Schottky rectifier diode manufactured by Micro Commercial Co, rated for 120V DC reverse voltage and 12A average rectified current in a surface mount TO-277-3 package. This component is classified as obsolete, necessitating identification of equivalent substitute parts for ongoing design requirements and procurement needs. The part maintains ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1).

Key Parameters

Parameter	Value
Voltage - DC Reverse (Vr) (Max)	120 V
Current - Average Rectified (Io)	12 A
Voltage - Forward (Vf) (Max) @ If	800 mV @ 12 A
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)
Current - Reverse Leakage @ Vr	40 µA @ 120 V
Mounting Type	Surface Mount
Package / Case	TO-277, 3-PowerDFN
Operating Temperature - Junction	-55°C ~ 150°C
Technology	Schottky
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the MBR12120LPS-TP is determined by the following electrical and mechanical parameters:

Electrical Compatibility Criteria:

Voltage - DC Reverse (Vr) rating must equal or exceed 120V
Current - Average Rectified (Io) rating must equal or exceed 12A
Technology type must be Schottky
Speed classification must be Fast Recovery (≤ 500ns, > 200mA)
Operating temperature range must encompass -55°C to 150°C

Mechanical Compatibility Criteria:

Mounting type must be Surface Mount
Package must be TO-277 or compatible 3-PowerDFN variant
Moisture sensitivity level must be MSL 1 or better

Compliance Requirements:

RoHS3 compliance required
ECCN classification EAR99

The MBR15U150-TP meets all substitution criteria with enhanced electrical ratings that provide design margin while maintaining identical mechanical and thermal characteristics.

Parameter Comparison

Parameter	MBR12120LPS-TP	MBR15U150-TP
Manufacturer	Micro Commercial Co	Micro Commercial Co
Category	Diodes, Rectifiers	Diodes, Rectifiers
Technology	Schottky	Schottky
Voltage - DC Reverse (Vr) (Max)	120 V	150 V
Current - Average Rectified (Io)	12 A	15 A
Voltage - Forward (Vf) (Max) @ If	800 mV @ 12 A	840 mV @ 15 A
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)
Current - Reverse Leakage @ Vr	40 µA @ 120 V	100 µA @ 150 V
Mounting Type	Surface Mount	Surface Mount
Package / Case	TO-277, 3-PowerDFN	TO-277, 3-PowerDFN
Operating Temperature - Junction	-55°C ~ 150°C	-55°C ~ 150°C
RoHS Status	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)
Product Status	Obsolete	Active

Engineering Selection Recommendations

The MBR15U150-TP is the qualified substitute for the obsolete MBR12120LPS-TP. Selection of this substitute is based on the following factors:

Product Status: The MBR15U150-TP maintains Active product status, ensuring continued availability and supply chain reliability compared to the Obsolete MBR12120LPS-TP.

Electrical Ratings: The substitute provides enhanced voltage rating (150V versus 120V) and current rating (15A versus 12A), delivering increased design margin for the same application envelope.

Compliance Certification: Both parts maintain identical ROHS3 compliance and EAR99 ECCN classification, satisfying regulatory requirements without modification.

Thermal and Mechanical Compatibility: Identical operating temperature range (-55°C to 150°C), mounting type (Surface Mount), and package designation (TO-277, 3-PowerDFN) ensure direct substitution without PCB redesign or thermal management modifications.

Moisture Handling: Both parts carry MSL 1 (Unlimited) rating, indicating identical moisture sensitivity and storage requirements.

Frequently Asked Questions (FAQ)

Q: Can the MBR15U150-TP directly replace the MBR12120LPS-TP without PCB modifications?

A: Yes. Both parts use identical Surface Mount TO-277, 3-PowerDFN packages with matching pinout and footprint. No PCB layout changes are required.

Q: What are the electrical differences between these parts?

A: The MBR15U150-TP provides higher voltage rating (150V versus 120V) and higher current rating (15A versus 12A). Forward voltage at rated current is slightly higher (840mV @ 15A versus 800mV @ 12A). Reverse leakage current is higher at the substitute's rated voltage (100µA @ 150V versus 40µA @ 120V).

Q: Are there any thermal management differences?

A: No. Both parts share identical operating temperature range (-55°C to 150°C) and thermal characteristics. Thermal design considerations remain unchanged.

Q: Does the substitute affect compliance or certifications?

A: No. The MBR15U150-TP maintains ROHS3 compliance and EAR99 ECCN classification identical to the original part. Regulatory requirements are satisfied without modification.

Q: Why is the MBR12120LPS-TP classified as obsolete?

A: Product status is determined by manufacturer lifecycle decisions. The MBR15U150-TP remains in Active production status, providing continued supply availability.

Q: Are moisture sensitivity requirements the same?

A: Yes. Both parts carry MSL 1 (Unlimited) rating, indicating identical moisture sensitivity levels and storage/handling requirements.

Q: What is the primary substitution criterion?

A: Substitution is valid when the replacement part meets or exceeds the original part's voltage rating (120V minimum), current rating (12A minimum), maintains Schottky technology with Fast Recovery speed characteristics, operates within the same temperature range, and uses compatible Surface Mount TO-277 packaging.

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