STB15100 Equivalent & Substitute Parts

Part Overview

The STB15100 is an active Schottky rectifier diode manufactured by SMC Diode Solutions, rated for 100 V DC reverse voltage and packaged in the D2PAK (TO-263-3) surface mount configuration. This component is designed for fast recovery applications with switching speeds ≤ 500 ns and is currently in active production status with full RoHS3 compliance. Equivalent and substitute parts are identified to support procurement flexibility, inventory management, and design continuity when the primary part becomes unavailable or when alternative electrical characteristics better suit specific application requirements.

Substiute Parts

STB15100

SMC Diode SolutionsIn Stock: 1298STB15100 Datasheet

Current PartRFQ

STPS8H100G-TR

STMicroelectronicsIn Stock: 7061STPS8H100G-TR Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the STB15100 are qualified based on the following critical parameters that determine functional equivalence and interchangeability:

Mandatory Matching Parameters:

• Voltage - DC Reverse (Vr) (Max): 100 V
• Package / Case: TO-263-3, D2PAK (2 Leads + Tab)
• Mounting Type: Surface Mount
• Technology: Schottky
• Speed: Fast Recovery ≤ 500 ns, > 200 mA (Io)

Allowable Variation Parameters:

• Voltage - Forward (Vf) (Max) @ If: Substitute may have lower forward voltage drop
• Current - Reverse Leakage @ Vr: Substitute may have lower leakage current
• Operating Temperature - Junction (Max): Substitute may have higher maximum junction temperature
• Current - Average Rectified (Io): Substitute may have higher rated current capacity

The STPS8H100G-TR meets all mandatory matching criteria and provides improved electrical characteristics in leakage current and forward voltage performance, making it a direct substitute for the STB15100 in D2PAK surface mount applications rated for 100 V operation.

Parameter Comparison

Engineering Selection Recommendations

Both the STB15100 and STPS8H100G-TR are active production components with full RoHS3 compliance and MSL Level 1 (Unlimited) moisture sensitivity ratings, ensuring compatibility with standard surface mount assembly processes and long-term storage without desiccant requirements.

The STPS8H100G-TR is qualified as a direct substitute for the STB15100 based on identical voltage ratings (100 V), matching D2PAK package configuration, identical fast recovery switching speed specification (≤ 500 ns), and equivalent Schottky technology. Both components support surface mount assembly in TO-263-3 footprints without modification.

The STPS8H100G-TR provides improved electrical performance characteristics, including reduced reverse leakage current (4.5 µA versus 500 µA at 100 V) and lower forward voltage drop (710 mV @ 8 A versus 750 mV @ 15 A). The STPS8H100G-TR also supports higher maximum junction temperature operation (175°C maximum versus 150°C maximum).

Selection between these parts is determined by application current requirements, thermal operating conditions, and procurement availability. Both components are suitable for 100 V Schottky rectifier applications in D2PAK surface mount configurations.

Frequently Asked Questions (FAQ)

Q: Can the STPS8H100G-TR be used as a direct replacement for the STB15100 in existing designs?

A: Yes. Both components share identical voltage ratings (100 V), package configuration (D2PAK/TO-263-3), mounting type (surface mount), and fast recovery switching speed (≤ 500 ns). The STPS8H100G-TR is electrically compatible and requires no PCB layout modifications.

Q: What are the key differences between these two parts?

A: The STPS8H100G-TR has a specified average rectified current rating of 8 A, lower reverse leakage current (4.5 µA versus 500 µA at 100 V), lower forward voltage drop (710 mV @ 8 A versus 750 mV @ 15 A), and higher maximum junction temperature (175°C versus 150°C). The STB15100 does not specify an average rectified current rating.

Q: Are both parts suitable for high-temperature applications?

A: The STPS8H100G-TR supports higher maximum junction temperature operation at 175°C compared to the STB15100 at 150°C. For applications requiring sustained operation above 150°C, the STPS8H100G-TR is the appropriate selection.

Q: Do these parts require different handling or storage procedures?

A: No. Both components have identical Moisture Sensitivity Level ratings (MSL 1 - Unlimited), indicating no special desiccant storage requirements and equivalent handling procedures for surface mount assembly.

Q: What is the significance of the lower reverse leakage current in the STPS8H100G-TR?

A: Lower reverse leakage current (4.5 µA versus 500 µA) reduces standby power dissipation and improves circuit efficiency in applications where the diode is reverse-biased during idle periods. This is a performance improvement over the STB15100.

Q: Are both parts RoHS compliant?

A: Yes. Both the STB15100 and STPS8H100G-TR are ROHS3 Compliant, meeting environmental and regulatory requirements for lead-free manufacturing and hazardous substance restrictions.

Q: Can these parts be used interchangeably in the same PCB assembly?

A: Yes. Both components use identical D2PAK (TO-263-3) package footprints with 2 leads plus tab configuration. No PCB redesign or footprint modification is required for substitution.