SF15M-TP Equivalent & Substitute Parts

Part Overview

The SF15M-TP is a general-purpose rectifier diode manufactured by Micro Commercial Co, rated for 300 V DC reverse voltage and 1 A average rectified current in a surface mount DO-214AC (HSMA) package. This component is classified as obsolete, indicating discontinuation from the manufacturer. Identification of equivalent and substitute parts is necessary to maintain design continuity and ensure component availability for new production runs, repairs, and system upgrades.

Substiute Parts

SF15M-TP

Micro Commercial CoIn Stock: 876SF15M-TP Datasheet

Current PartRFQ

ES1G-LTP

Micro Commercial CoIn Stock: 13588ES1G-LTP Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SF15M-TP is determined by the following critical electrical and mechanical parameters:

Electrical Compatibility Criteria:

• Voltage - DC Reverse (Vr) rating must equal or exceed 300 V
• Current - Average Rectified (Io) must equal or exceed 1 A
• Reverse Recovery Time (trr) must be ≤ 500 ns (fast recovery classification)
• Reverse Leakage Current must be acceptable at rated voltage
• Operating temperature range must accommodate application requirements

Mechanical Compatibility Criteria:

• Package / Case must be DO-214AC (SMA or HSMA variant)
• Mounting Type must be Surface Mount
• Technology classification must be Standard

The ES1G-LTP meets all substitution criteria with enhanced voltage rating (400 V vs. 300 V), identical current rating (1 A), matching fast recovery characteristics (35 ns trr), and compatible surface mount packaging. The higher voltage rating provides additional design margin without compromising functional compatibility.

Parameter Comparison

Engineering Selection Recommendations

The ES1G-LTP is a direct functional substitute for the obsolete SF15M-TP based on the following engineering factors:

Product Status Consideration: The SF15M-TP is classified as obsolete, making the ES1G-LTP the appropriate active alternative from the same manufacturer. The ES1G-LTP maintains active production status with confirmed inventory availability (13,565 pcs), ensuring long-term supply chain reliability.

Electrical Compatibility: The ES1G-LTP exceeds the minimum electrical requirements of the SF15M-TP. The 400 V reverse voltage rating provides a 100 V margin above the original 300 V specification, while maintaining identical current handling (1 A), recovery time (35 ns), and leakage characteristics (5 µA). This enhanced voltage rating is backward-compatible with applications designed for 300 V operation.

Compliance and Certifications: Both parts maintain identical RoHS3 compliance and MSL Level 1 (Unlimited) moisture sensitivity ratings. The ES1G-LTP includes REACH Unaffected status, confirming regulatory alignment with current environmental standards.

Thermal Performance: The ES1G-LTP operates across a wider junction temperature range (-65 to 175 °C) compared to the SF15M-TP (-65 to 150 °C), providing additional thermal margin for demanding applications.

Package and Mounting Compatibility: Both components utilize the DO-214AC surface mount package with identical pin configuration and footprint, enabling direct PCB-level substitution without layout modifications.

Frequently Asked Questions (FAQ)

Q: Can the ES1G-LTP be used as a direct replacement for the SF15M-TP in existing designs?

A: Yes. The ES1G-LTP is electrically and mechanically compatible with the SF15M-TP. Both components share identical current ratings (1 A), fast recovery characteristics (35 ns), capacitance (15 pF), and surface mount DO-214AC packaging. The ES1G-LTP's higher voltage rating (400 V vs. 300 V) and extended temperature range (-65 to 175 °C vs. -65 to 150 °C) provide additional design margin without requiring circuit modifications.

Q: What is the primary difference between the SF15M-TP and ES1G-LTP?

A: The primary differences are voltage rating and product status. The ES1G-LTP is rated for 400 V reverse voltage compared to the SF15M-TP's 300 V rating, and the ES1G-LTP maintains active production status while the SF15M-TP is obsolete. All other electrical parameters, including current, recovery time, and leakage characteristics, are identical.

Q: Are there any package differences between these components?

A: Both components use the DO-214AC surface mount package. The SF15M-TP is specified as DO-214AC (HSMA), while the ES1G-LTP is specified as DO-214AC (SMA). Both designations refer to the same physical package footprint and pin configuration, ensuring PCB compatibility without layout changes.

Q: What is the inventory status of the ES1G-LTP?

A: The ES1G-LTP has 13,565 pcs of new original stock available, confirming immediate availability and long-term supply continuity. The SF15M-TP, being obsolete, has limited remaining inventory (779 pcs).

Q: Do both parts meet the same regulatory and compliance standards?

A: Yes. Both the SF15M-TP and ES1G-LTP are RoHS3 compliant, carry MSL Level 1 (Unlimited) moisture sensitivity ratings, and share identical ECCN (EAR99) and HTSUS classifications. The ES1G-LTP additionally carries REACH Unaffected status.

Q: Can the ES1G-LTP handle the same reverse voltage as the SF15M-TP?

A: Yes. The ES1G-LTP is rated for 400 V reverse voltage, which exceeds the SF15M-TP's 300 V rating. Applications designed for 300 V operation operate within the ES1G-LTP's rated specifications with additional voltage margin.

Q: Are the forward voltage characteristics comparable?

A: The ES1G-LTP specifies a maximum forward voltage of 1.25 V @ 1 A. This parameter was not provided for the SF15M-TP in the available data. Both components are fast recovery diodes with identical 35 ns reverse recovery time, indicating comparable switching performance in rectification applications.