MBRM110LT3 Equivalent & Substitute Parts

Part Overview

The MBRM110LT3 is a Schottky diode manufactured by onsemi, rated for 10 V DC reverse voltage and 1 A average rectified current in a Powermite surface mount package. This component is classified as obsolete, making equivalent and substitute parts necessary for new designs and ongoing production requirements. The part exhibits fast recovery characteristics (≤500 ns for currents >200 mA) and operates across a junction temperature range of -55°C to 125°C.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	10	V
Current - Average Rectified (Io)	1	A
Voltage - Forward (Vf) (Max) @ If	365 mV @ 1 A	mV
Speed	Fast Recovery ≤500 ns, >200 mA (Io)	ns
Current - Reverse Leakage @ Vr	500 µA @ 10 V	µA
Technology	Schottky	—
Mounting Type	Surface Mount	—
Package / Case	DO-216AA	—
Operating Temperature - Junction	-55°C to 125°C	°C
RoHS Status	RoHS non-compliant	—

Substitute Part Grouping Explanation

Substitution of the MBRM110LT3 is determined by the following electrical and mechanical parameters:

Primary Substitution Criteria:

Voltage - DC Reverse (Vr) rating must equal or exceed 10 V
Current - Average Rectified (Io) rating must equal or exceed 1 A
Technology must be Schottky diode
Mounting type must be Surface Mount
Speed classification must be Fast Recovery (≤500 ns, >200 mA)

Secondary Considerations:

Forward voltage (Vf) characteristics at rated current
Reverse leakage current at rated voltage
Operating temperature range
Package compatibility with circuit board layout
RoHS and regulatory compliance status

The substitute parts identified (PMEG1020EA,115 and SS2P2L-M3/84A) meet or exceed the primary electrical criteria. Both are active Schottky diodes with surface mount packaging and fast recovery characteristics. Differences in package type, current rating, and voltage rating are noted in the parameter comparison table below.

Parameter Comparison

Parameter	MBRM110LT3 (Main)	PMEG1020EA,115 (Substitute)	SS2P2L-M3/84A (Substitute)
Manufacturer	onsemi	Nexperia USA Inc.	Vishay General Semiconductor - Diodes Division
Product Status	Obsolete	Active	Active
Technology	Schottky	Schottky	Schottky
Voltage - DC Reverse (Vr) (Max)	10 V	10 V	20 V
Current - Average Rectified (Io)	1 A	2 A	2 A
Voltage - Forward (Vf) (Max) @ If	365 mV @ 1 A	460 mV @ 2 A	500 mV @ 2 A
Speed	Fast Recovery ≤500 ns, >200 mA	Fast Recovery ≤500 ns, >200 mA	Fast Recovery ≤500 ns, >200 mA
Current - Reverse Leakage @ Vr	500 µA @ 10 V	3 mA @ 10 V	200 µA @ 20 V
Mounting Type	Surface Mount	Surface Mount	Surface Mount
Package / Case	DO-216AA	SC-76, SOD-323	DO-220AA
Operating Temperature - Junction (Max)	125°C	150°C	150°C
RoHS Status	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant
Qualification	—	AEC-Q100 (Automotive)	—

Engineering Selection Recommendations

PMEG1020EA,115 (Nexperia USA Inc.): This substitute provides electrical equivalence with a matching 10 V reverse voltage rating and exceeds the 1 A current requirement at 2 A. The part is active and ROHS3 compliant, addressing regulatory requirements that the obsolete MBRM110LT3 does not meet. The SOD-323 package is significantly smaller than the DO-216AA, requiring circuit board layout modification. The AEC-Q100 automotive qualification provides additional reliability assurance for applications requiring automotive-grade components. Forward voltage is higher at 460 mV @ 2 A compared to 365 mV @ 1 A on the main part, which may impact power dissipation in current-limited applications.

SS2P2L-M3/84A (Vishay General Semiconductor - Diodes Division): This substitute exceeds electrical requirements with a 20 V reverse voltage rating and 2 A current capacity. The part is active and ROHS3 compliant. The DO-220AA package maintains similar form factor to the DO-216AA, simplifying board layout integration. The higher voltage rating provides additional design margin for transient protection. Forward voltage is 500 mV @ 2 A, representing the highest among the three options. Reverse leakage at 200 µA @ 20 V is lower than the main part's 500 µA @ 10 V, indicating superior leakage characteristics.

Both substitutes are suitable for applications where the MBRM110LT3 is no longer available. Selection between them depends on package compatibility with existing circuit board designs and compliance requirements specific to the end application.

Frequently Asked Questions (FAQ)

Q: Can the PMEG1020EA,115 directly replace the MBRM110LT3 without circuit board modifications?

A: The PMEG1020EA,115 uses an SOD-323 package, which is physically smaller than the DO-216AA package of the MBRM110LT3. Circuit board layout modifications are required to accommodate the different package footprint. Electrical functionality is compatible when the 1 A requirement of the original design does not exceed the substitute's 2 A rating.

Q: What is the impact of higher forward voltage in the substitute parts?

A: The PMEG1020EA,115 exhibits 460 mV forward voltage at 2 A, and the SS2P2L-M3/84A exhibits 500 mV at 2 A, compared to 365 mV at 1 A for the MBRM110LT3. In applications where the diode conducts at or near 1 A, the forward voltage difference results in increased power dissipation. Thermal analysis of the specific application circuit is necessary to determine if heat dissipation remains within acceptable limits.

Q: Are the substitute parts suitable for RoHS-compliant applications?

A: Yes. Both PMEG1020EA,115 and SS2P2L-M3/84A are ROHS3 compliant. The original MBRM110LT3 is RoHS non-compliant. Selection of either substitute addresses RoHS compliance requirements for new designs and production.

Q: What is the difference between the two substitute parts in terms of voltage rating?

A: The PMEG1020EA,115 maintains the 10 V reverse voltage rating of the original part. The SS2P2L-M3/84A provides a 20 V reverse voltage rating, offering additional design margin for transient overvoltage protection. The higher voltage rating does not degrade performance in 10 V applications but increases component cost and package size.

Q: Can either substitute part be used in automotive applications?

A: The PMEG1020EA,115 carries AEC-Q100 automotive qualification, making it suitable for automotive applications. The SS2P2L-M3/84A does not list automotive qualification in the provided specifications. Application requirements should determine whether automotive qualification is necessary.

Q: How do reverse leakage currents compare between the main part and substitutes?

A: The MBRM110LT3 exhibits 500 µA reverse leakage at 10 V. The PMEG1020EA,115 exhibits 3 mA reverse leakage at 10 V, which is higher. The SS2P2L-M3/84A exhibits 200 µA reverse leakage at 20 V, which is lower than the main part when normalized to voltage. Applications sensitive to leakage current should account for these differences in circuit analysis.

Q: What is the maximum junction temperature difference between the main part and substitutes?

A: The MBRM110LT3 operates to a maximum junction temperature of 125°C. Both substitutes operate to 150°C maximum junction temperature, providing 25°C additional thermal margin. This allows operation in higher ambient temperature environments or with higher power dissipation without exceeding maximum ratings.

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