STPS1L20M Equivalent & Substitute Parts

Part Overview

The STPS1L20M is a Schottky rectifier diode manufactured by STMicroelectronics, rated for 20 V DC reverse voltage and 1 A average rectified current. This component is packaged in DO-216AA surface mount configuration and is classified as Active product status with full RoHS3 compliance. The STPS1L20M serves in applications requiring fast recovery rectification with low forward voltage drop characteristics typical of Schottky technology.

Equivalent and substitute parts are identified based on matching electrical ratings, mechanical packaging, and performance specifications. Substitute components must maintain compatibility across voltage ratings, current capacity, mounting type, and thermal operating ranges to ensure functional equivalence in circuit applications.

Substiute Parts

STPS1L20M

STMicroelectronicsIn Stock: 9209STPS1L20M Datasheet

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MBRM120LT1G

onsemiIn Stock: 125509MBRM120LT1G Datasheet

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MBRM120LT3G

onsemiIn Stock: 16455MBRM120LT3G Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the STPS1L20M are qualified based on the following electrical and mechanical parameters:

Primary Matching Criteria:

• Voltage - DC Reverse (Vr) (Max): 20 V
• Current - Average Rectified (Io): 1 A
• Package / Case: DO-216AA
• Mounting Type: Surface Mount
• Technology: Schottky
• Speed: Fast Recovery ≤ 500ns, > 200mA (Io)

Secondary Compatibility Factors:

• RoHS3 Compliance
• Moisture Sensitivity Level (MSL): 1 (Unlimited)
• REACH Status: REACH Unaffected

The substitute parts MBRM120LT1G and MBRM120LT3G, both manufactured by onsemi, meet all primary matching criteria. Both components are rated for identical voltage and current specifications, utilize the same DO-216AA package, and employ Schottky rectifier technology with equivalent fast recovery characteristics. Both substitute parts maintain RoHS3 compliance and MSL Level 1 rating, ensuring compatibility with the original STPS1L20M in equivalent circuit applications.

Parameter Comparison

Engineering Selection Recommendations

STPS1L20M (STMicroelectronics)

The STPS1L20M is the primary component specification. This part maintains Active product status with full RoHS3 compliance and REACH Unaffected designation. The component features a maximum junction temperature rating of 150°C and exhibits lower reverse leakage current (75 µA @ 20 V) compared to substitute options. The STPS1L20M is suitable for applications requiring optimized leakage characteristics within the specified voltage and current envelope.

MBRM120LT1G and MBRM120LT3G (onsemi)

Both onsemi substitute parts maintain Active product status with identical RoHS3 compliance and REACH Unaffected status. These components are electrically equivalent to the STPS1L20M across all primary ratings: 20 V reverse voltage, 1 A average rectified current, and fast recovery Schottky technology. The onsemi parts operate within a -55°C to 125°C junction temperature range, providing extended low-temperature operation compared to the STPS1L20M specification.

Differences in forward voltage (450 mV versus 430 mV at 1 A) and reverse leakage current (400 µA versus 75 µA at 20 V) are within acceptable substitution tolerances for Schottky rectifier applications. Both substitute parts are packaged identically in DO-216AA surface mount configuration and maintain equivalent moisture sensitivity and regulatory compliance profiles.

Frequently Asked Questions (FAQ)

Q: Can MBRM120LT1G and MBRM120LT3G be used interchangeably with STPS1L20M?

A: Yes. Both onsemi parts meet all primary electrical specifications: 20 V reverse voltage rating, 1 A average rectified current, fast recovery Schottky technology, and DO-216AA surface mount packaging. Both components maintain RoHS3 compliance and MSL Level 1 rating. The parts are functionally equivalent for circuit applications within the specified electrical envelope.

Q: What are the differences between MBRM120LT1G and MBRM120LT3G?

A: Both parts are electrically identical across all provided specifications. The designation difference (LT1G versus LT3G) reflects packaging or tape configuration variants. Both components are supplied in Cut Tape (CT) & Digi-Reel® packaging and maintain identical electrical performance characteristics.

Q: How do forward voltage differences affect substitution?

A: The STPS1L20M specifies 430 mV maximum forward voltage at 1 A, while MBRM120LT1G and MBRM120LT3G specify 450 mV at 1 A. This 20 mV difference is typical variation within Schottky rectifier technology and does not prevent functional substitution. Circuit designs accommodating standard Schottky forward voltage tolerance ranges accept this variation.

Q: What is the significance of reverse leakage current differences?

A: The STPS1L20M exhibits 75 µA reverse leakage at 20 V, while substitute parts specify 400 µA at 20 V. This difference reflects manufacturing process variations between STMicroelectronics and onsemi. Applications sensitive to leakage current should evaluate this parameter against circuit requirements. Standard rectifier applications tolerate this leakage variation.

Q: Are there temperature operating range considerations?

A: The STPS1L20M specifies a maximum junction temperature of 150°C. The onsemi substitutes operate across -55°C to 125°C. Applications requiring operation above 125°C junction temperature require the STPS1L20M. Applications within the -55°C to 125°C range accept either component.

Q: Do packaging differences affect PCB layout?

A: All three parts utilize identical DO-216AA surface mount packaging. PCB footprints, solder pad dimensions, and mounting procedures are equivalent. No layout modifications are required when substituting between these components.

Q: Are regulatory and compliance certifications equivalent?

A: Yes. All three parts maintain RoHS3 compliance, REACH Unaffected status, and MSL Level 1 (Unlimited) moisture sensitivity rating. Regulatory and environmental compliance profiles are identical across the STPS1L20M and both onsemi substitute parts.