MBRM130LT3G Equivalent & Substitute Parts

Part Overview

The MBRM130LT3G is a Schottky rectifier diode manufactured by onsemi, rated for 30 V DC reverse voltage and 1 A average rectified current in a Powermite surface mount package. This component is classified as obsolete, necessitating identification of equivalent and substitute parts for ongoing design requirements and procurement needs. Active alternatives with identical or enhanced electrical characteristics are available from onsemi and other manufacturers.

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 ~ 125°C
Technology	Schottky
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution of the MBRM130LT3G is determined by the following critical parameters: voltage rating (Vr), current rating (Io), forward voltage drop (Vf), reverse leakage current, package type, and operating temperature range. Substitute parts are grouped into two categories:

Parametric Equivalent: Parts with identical electrical specifications and the same package footprint, differing only in packaging format (tape & reel versus cut tape).

Manufacturer Recommended Substitute: Parts with enhanced voltage or current ratings that maintain backward compatibility while providing additional design margin.

Similar Alternatives: Parts from alternative manufacturers with equivalent electrical performance and compatible package types, though with potential variations in reverse leakage or forward voltage characteristics.

Parameter Comparison

Part Number	Manufacturer	Vr (Max)	Io	Vf (Max) @ 1A	Reverse Leakage @ Vr	Package	Status
MBRM130LT3G	onsemi	30 V	1 A	380 mV	410 µA @ 30 V	DO-216AA	Obsolete
MBRM130LT1G	onsemi	30 V	1 A	380 mV	410 µA @ 30 V	DO-216AA	Active
MBRM140T1G	onsemi	40 V	1 A	550 mV	500 µA @ 40 V	DO-216AA	Active
SS1P3L-M3/84A	Vishay General Semiconductor - Diodes Division	30 V	1.5 A	450 mV	200 µA @ 30 V	DO-220AA	Active
STPS1L30M	STMicroelectronics	30 V	1 A	390 mV	390 µA @ 30 V	DO-216AA	Active

Engineering Selection Recommendations

Direct Replacement (Parametric Equivalent): The MBRM130LT1G is the primary equivalent for the obsolete MBRM130LT3G. Both parts share identical electrical specifications and package geometry. The MBRM130LT1G is currently in active production status with high inventory availability (125,100 pcs), making it the preferred selection for direct substitution without circuit redesign.

Enhanced Voltage Rating Alternative: The MBRM140T1G provides a higher voltage rating (40 V versus 30 V) while maintaining the same 1 A current rating and DO-216AA package. This part is suitable for applications requiring additional voltage margin. Forward voltage increases to 550 mV at 1 A, which must be evaluated for thermal and efficiency impacts. The MBRM140T1G is in active production with substantial inventory (125,200 pcs).

Alternative Manufacturer Options: The STPS1L30M (STMicroelectronics) and SS1P3L-M3/84A (Vishay) provide equivalent 30 V ratings with identical or superior electrical characteristics. The STPS1L30M maintains the DO-216AA package with forward voltage of 390 mV and reverse leakage of 390 µA. The SS1P3L-M3/84A offers higher current capacity (1.5 A) and lower reverse leakage (200 µA) but uses the DO-220AA package, requiring PCB layout modification.

All substitute parts listed are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements.

Frequently Asked Questions (FAQ)

Q: Can MBRM130LT1G be used as a direct replacement for MBRM130LT3G? A: Yes. The MBRM130LT1G is a parametric equivalent with identical voltage, current, and forward voltage specifications. The only difference is packaging format (cut tape versus tape & reel). No circuit modifications are required.

Q: What is the difference between MBRM130LT3G and MBRM140T1G? A: The MBRM140T1G has a higher reverse voltage rating (40 V versus 30 V) and higher forward voltage drop (550 mV versus 380 mV at 1 A). Use MBRM140T1G only if the application requires the additional voltage margin, as the higher forward voltage will increase power dissipation.

Q: Can I use SS1P3L-M3/84A as a substitute? A: The SS1P3L-M3/84A is electrically compatible with identical 30 V rating and superior reverse leakage characteristics (200 µA versus 410 µA). However, it uses the DO-220AA package instead of DO-216AA, requiring PCB footprint modification. Current capacity is also higher at 1.5 A.

Q: Are all substitute parts RoHS compliant? A: Yes. All listed substitute parts are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory standards.

Q: Which substitute offers the best thermal performance? A: The SS1P3L-M3/84A has the lowest reverse leakage current (200 µA) and can handle higher current (1.5 A), potentially offering better thermal characteristics in high-current applications. However, package change requires PCB redesign.

Q: What is the operating temperature range for substitute parts? A: MBRM130LT1G, MBRM140T1G, and STPS1L30M all operate from -55°C to 125°C. The SS1P3L-M3/84A extends to 150°C maximum junction temperature, providing additional thermal margin in high-temperature environments.

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