MBRM130LT1 Equivalent & Substitute Parts

Part Overview

The MBRM130LT1 is a 30V, 1A Schottky rectifier diode manufactured by onsemi in a DO-216AA (Powermite) surface mount package. This component is classified as obsolete, indicating discontinuation from the manufacturer. Equivalent and substitute parts are necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for applications utilizing this diode specification.

Key Parameters

Parameter	Value
Voltage - DC Reverse (Vr) (Max)	30 V
Current - Average Rectified (Io)	1 A
Voltage - Forward (Vf) (Max) @ If	380 mV @ 1 A
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)
Current - Reverse Leakage @ Vr	410 µA @ 30 V
Mounting Type	Surface Mount
Package / Case	DO-216AA
Operating Temperature - Junction	-55°C ~ 150°C
Technology	Schottky

Substitute Part Grouping Explanation

Substitution of the MBRM130LT1 is determined by the following critical parameters:

Primary Substitution Criteria:

Voltage - DC Reverse (Vr) (Max): 30 V minimum
Current - Average Rectified (Io): 1 A minimum
Technology: Schottky
Mounting Type: Surface Mount
Speed: Fast Recovery ≤ 500ns, > 200mA (Io)

Secondary Compatibility Factors:

Package / Case compatibility or functional equivalence
Operating Temperature range coverage
Forward voltage characteristics within acceptable tolerance
Reverse leakage current specifications

Substitute parts are grouped into two categories: direct equivalents (identical electrical and package specifications) and functional equivalents (meeting or exceeding electrical requirements with alternative packaging).

Parameter Comparison

Parameter	MBRM130LT1	MBRM130LT1G	SS1P3L-M3/84A	STPS1L30M
Manufacturer	onsemi	onsemi	Vishay General Semiconductor - Diodes Division	STMicroelectronics
Voltage - DC Reverse (Vr) (Max)	30 V	30 V	30 V	30 V
Current - Average Rectified (Io)	1 A	1 A	1.5 A	1 A
Voltage - Forward (Vf) (Max) @ If	380 mV @ 1 A	380 mV @ 1 A	450 mV @ 1 A	390 mV @ 1 A
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)
Current - Reverse Leakage @ Vr	410 µA @ 30 V	410 µA @ 30 V	200 µA @ 30 V	390 µA @ 30 V
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Package / Case	DO-216AA	DO-216AA	DO-220AA	DO-216AA
Operating Temperature - Junction	-55°C ~ 150°C	-55°C ~ 125°C	-55°C ~ 150°C	-55°C ~ 150°C
Product Status	Obsolete	Active	Active	Active
RoHS Status	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

MBRM130LT1G (onsemi) is the primary direct equivalent substitute. This part maintains identical electrical specifications (30V, 1A, 380mV forward voltage) and package configuration (DO-216AA Powermite) as the obsolete MBRM130LT1. The MBRM130LT1G is active in production status with ROHS3 compliance, providing regulatory alignment and supply chain continuity. The operating temperature maximum is reduced to 125°C compared to the original 150°C specification; this difference must be evaluated against application requirements.

STPS1L30M (STMicroelectronics) is a functional equivalent meeting all primary substitution criteria. This part maintains the 30V reverse voltage, 1A average rectified current, and DO-216AA package format. Forward voltage is marginally higher at 390mV versus 380mV, and reverse leakage is slightly lower at 390µA. The STPS1L30M is active in production with ROHS3 compliance and full -55°C to 150°C operating temperature range coverage.

SS1P3L-M3/84A (Vishay General Semiconductor - Diodes Division) is a functional equivalent with enhanced current capability (1.5A versus 1A). This part meets the 30V reverse voltage requirement and fast recovery speed specification. The package differs (DO-220AA versus DO-216AA), requiring PCB layout modification. Forward voltage is higher at 450mV, and reverse leakage is lower at 200µA. The SS1P3L-M3/84A is active in production with ROHS3 compliance and full -55°C to 150°C operating temperature range.

Selection between active substitutes depends on application-specific requirements: package compatibility, thermal environment, and forward voltage tolerance.

Frequently Asked Questions (FAQ)

Q: Can MBRM130LT1G be used as a direct replacement for MBRM130LT1?

A: Yes. The MBRM130LT1G is a direct equivalent with identical electrical specifications (30V, 1A, 380mV forward voltage) and package configuration (DO-216AA Powermite). The primary difference is product status (active versus obsolete) and regulatory compliance (ROHS3 compliant). The operating temperature maximum is 125°C versus 150°C; applications operating above 125°C junction temperature require evaluation.

Q: What are the key differences between STPS1L30M and the original MBRM130LT1?

A: The STPS1L30M meets all primary electrical requirements: 30V reverse voltage, 1A average rectified current, and fast recovery speed. Differences include forward voltage (390mV versus 380mV), reverse leakage (390µA versus 410µA), and package supplier designation (STmite versus Powermite). Both use DO-216AA packaging. The STPS1L30M provides full -55°C to 150°C operating temperature range.

Q: Why does SS1P3L-M3/84A have a different package designation?

A: The SS1P3L-M3/84A uses DO-220AA (SMP) packaging, which differs from the DO-216AA (Powermite) of the original part. DO-220AA is a larger surface mount package. This substitution requires PCB layout modification and is suitable only when package footprint changes are acceptable. The higher current rating (1.5A) provides design margin for applications with variable load conditions.

Q: Are all substitute parts RoHS compliant?

A: Yes. The MBRM130LT1G, STPS1L30M, and SS1P3L-M3/84A are all ROHS3 compliant. The original MBRM130LT1 is RoHS non-compliant. Regulatory requirements for new designs or production transitions necessitate selection of compliant alternatives.

Q: What is the impact of forward voltage differences between substitutes?

A: Forward voltage differences (380mV, 390mV, and 450mV) affect power dissipation and circuit performance. Applications with tight voltage regulation or high-frequency switching may be sensitive to these variations. The STPS1L30M (390mV) and MBRM130LT1G (380mV) are closely matched. The SS1P3L-M3/84A (450mV) introduces higher forward voltage drop and requires thermal analysis for power dissipation impact.

Q: Can reverse leakage current differences affect circuit operation?

A: Reverse leakage current differences (200µA to 410µA) are generally acceptable for rectifier applications. Lower leakage (SS1P3L-M3/84A at 200µA) provides improved performance in low-current or high-impedance circuits. Higher leakage (MBRM130LT1 and MBRM130LT1G at 410µA) is within acceptable limits for standard rectification applications. Circuits with stringent leakage requirements should prioritize the SS1P3L-M3/84A.

Q: What packaging considerations apply to each substitute?

A: MBRM130LT1G and STPS1L30M both use DO-216AA packaging, enabling direct PCB footprint compatibility with the original MBRM130LT1. SS1P3L-M3/84A uses DO-220AA packaging, which is larger and requires PCB redesign. Packaging selection depends on available board space and design flexibility.

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