MBR120LSFT1H Equivalent & Substitute Parts

Part Overview

The MBR120LSFT1H is a Schottky rectifier diode manufactured by onsemi, rated for 20 V DC reverse voltage and 1 A average rectified current in a surface mount SOD-123F package. This component is classified as obsolete, necessitating identification of active equivalent parts for new designs and ongoing production requirements. Substitute parts must maintain electrical performance within the specified parameters while offering active product status and improved availability.

Substiute Parts

MBR120LSFT1H

onsemiIn Stock: 994MBR120LSFT1H Datasheet

Current PartRFQ

MBR120LSFT1G

onsemiIn Stock: 25421MBR120LSFT1G Datasheet

DirectRFQ

SL02-GS08

Vishay General Semiconductor - Diodes DivisionIn Stock: 43948SL02-GS08 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the MBR120LSFT1H are selected based on strict electrical and mechanical parameter matching within the Schottky diode rectifier category. The substitution criteria are:

Primary Matching Parameters:

• Voltage - DC Reverse (Vr) (Max): 20 V minimum
• Current - Average Rectified (Io): 1 A minimum
• Technology: Schottky
• Mounting Type: Surface Mount
• Speed Classification: Fast Recovery ≤ 500ns, > 200mA (Io)
• Operating Temperature Range: -55°C to 125°C minimum
• RoHS3 Compliance: Required

Substitution Logic: Parts are classified as direct equivalents when all primary parameters match exactly. Parts are classified as similar substitutes when electrical ratings meet or exceed the main part specifications while maintaining the same technology and mounting type, with allowable variations in package form factor and forward voltage characteristics within acceptable operating margins.

Parameter Comparison

Engineering Selection Recommendations

MBR120LSFT1G (Direct Equivalent - Recommended Primary Choice)

The MBR120LSFT1G is the direct functional equivalent of the MBR120LSFT1H. Both parts share identical electrical specifications, package form factor (SOD-123F), and temperature operating range. The MBR120LSFT1G maintains active product status with significantly higher inventory availability (25,368 units in stock versus 955 units for the obsolete main part). Both parts carry ROHS3 compliance and REACH unaffected status. The MBR120LSFT1G features defined MSL rating (1 - Unlimited) compared to vendor undefined MSL for the main part, providing improved moisture handling documentation for manufacturing environments.

SL02-GS08 (Similar Substitute - Alternative Option)

The SL02-GS08 from Vishay General Semiconductor - Diodes Division is a similar substitute that meets or exceeds all primary electrical specifications. This part provides 1.1 A average rectified current (10% higher than the 1 A requirement), improved forward voltage characteristics (420 mV @ 1.1 A versus 450 mV @ 1 A), and lower reverse leakage current (250 µA @ 20 V versus 400 µA @ 20 V). The SL02-GS08 operates at a maximum junction temperature of 125°C, matching the upper limit of the main part's range. Package form factor differs (DO-219AB versus SOD-123F), requiring PCB layout verification. The SL02-GS08 maintains active product status, ROHS3 compliance, and MSL 1 rating with substantial inventory availability (43,938 units in stock).

Both substitute parts satisfy compliance requirements and provide active product status for production continuity.

Frequently Asked Questions (FAQ)

Q: Can the MBR120LSFT1G be used as a direct replacement for the MBR120LSFT1H?

A: Yes. The MBR120LSFT1G is a direct equivalent with identical electrical specifications, package type (SOD-123F), and operating temperature range (-55°C to 125°C). Both parts are Schottky rectifier diodes rated for 20 V and 1 A with 450 mV forward voltage at 1 A. No circuit modifications are required.

Q: What are the key differences between the MBR120LSFT1G and SL02-GS08?

A: The primary differences are manufacturer (onsemi versus Vishay), package form factor (SOD-123F versus DO-219AB), and electrical performance margins. The SL02-GS08 provides higher current rating (1.1 A versus 1 A), lower forward voltage (420 mV @ 1.1 A versus 450 mV @ 1 A), and lower reverse leakage (250 µA versus 400 µA). The SL02-GS08 requires PCB layout changes due to different package dimensions.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. The MBR120LSFT1G and SL02-GS08 are both ROHS3 compliant, matching the compliance status of the main part MBR120LSFT1H.

Q: What is the moisture sensitivity level (MSL) for these parts?

A: The MBR120LSFT1H has vendor undefined MSL. Both substitute parts carry MSL 1 (Unlimited), indicating no moisture sensitivity restrictions for storage and handling.

Q: Can the SL02-GS08 be used in place of the MBR120LSFT1H without circuit redesign?

A: The SL02-GS08 meets all electrical specifications and exceeds performance in key parameters (current, forward voltage, reverse leakage). However, the package form factor differs (DO-219AB versus SOD-123F), requiring PCB footprint verification and potential layout modifications. Electrical circuit operation remains compatible.

Q: Which substitute part should be selected for new designs?

A: The MBR120LSFT1G is the recommended choice for new designs due to identical package compatibility with the original part, active product status, and superior inventory availability. The SL02-GS08 is suitable when improved electrical performance margins and higher current capacity are beneficial and PCB layout modifications are acceptable.

Q: What is the operating temperature range for each part?

A: The MBR120LSFT1H and MBR120LSFT1G both operate from -55°C to 125°C junction temperature. The SL02-GS08 specifies a maximum junction temperature of 125°C without a defined minimum, requiring verification for applications requiring operation below 0°C.