SF13M-TP Equivalent & Substitute Parts

Part Overview

The SF13M-TP is a general-purpose rectifier diode manufactured by Micro Commercial Co, rated for 150 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 active production. Identification of equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for applications utilizing this diode specification.

Substiute Parts

SF13M-TP

Micro Commercial CoIn Stock: 943SF13M-TP Datasheet

Current PartRFQ

ES1D-LTP

Micro Commercial CoIn Stock: 335351ES1D-LTP Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SF13M-TP is determined by electrical and mechanical compatibility within the following criteria:

Mandatory Compatibility Parameters:

• Mounting Type: Surface Mount
• Package / Case: DO-214AC (SMA form factor)
• Current - Average Rectified (Io): 1 A minimum
• Reverse Recovery Time (trr): 35 ns (Fast Recovery classification)
• Technology: Standard rectifier diode

Allowable Parameter Variations:

• Voltage - DC Reverse (Vr) (Max): Equal to or greater than 150 V
• Operating Temperature - Junction: Equal to or greater than the specified range
• Current - Reverse Leakage: Equal to or less than specified values at rated voltage
• Capacitance: Equivalent or lower values acceptable

The ES1D-LTP qualifies as a direct substitute based on these criteria. It maintains identical mounting, package, current rating, and recovery time specifications while providing enhanced voltage rating (200 V vs. 150 V) and extended temperature range (-65°C ~ 175°C vs. -65°C ~ 150°C).

Parameter Comparison

Engineering Selection Recommendations

The ES1D-LTP is a qualified substitute for the obsolete SF13M-TP based on the following engineering factors:

Product Status Consideration: The SF13M-TP is classified as obsolete, while the ES1D-LTP maintains active production status with substantial inventory availability (335,300 pieces). This ensures long-term supply chain reliability and component availability for ongoing production and field support.

Electrical Compatibility: The ES1D-LTP maintains all critical electrical parameters identical to the SF13M-TP: 1 A average rectified current, 35 ns reverse recovery time, and fast recovery classification. The substitute provides a higher voltage rating (200 V vs. 150 V), which is compatible with applications designed for 150 V operation and provides additional design margin.

Compliance and Certification: Both components maintain identical RoHS3 compliance, moisture sensitivity level (MSL 1), ECCN classification (EAR99), and HTSUS code (8541.10.0080). No compliance barriers exist for substitution.

Thermal Performance: The ES1D-LTP extends the operating temperature range to -65°C ~ 175°C, compared to the SF13M-TP range of -65°C ~ 150°C. This provides enhanced thermal margin for applications operating at elevated junction temperatures.

Package and Mounting: Both components utilize identical surface mount DO-214AC (SMA) packaging, ensuring mechanical and electrical compatibility without PCB redesign or assembly process modification.

Frequently Asked Questions (FAQ)

Q: Can the ES1D-LTP be used as a direct replacement for the SF13M-TP without circuit modification?

A: Yes. The ES1D-LTP is electrically and mechanically compatible with the SF13M-TP. Both components share identical current ratings (1 A), recovery time (35 ns), package type (DO-214AC SMA), and mounting configuration. The higher voltage rating of the ES1D-LTP (200 V vs. 150 V) is compatible with circuits designed for 150 V operation.

Q: What is the primary reason for substituting the SF13M-TP?

A: The SF13M-TP is classified as obsolete and no longer in active production. The ES1D-LTP is an active product with substantial inventory availability, ensuring supply chain continuity and long-term component availability.

Q: Are there any thermal performance differences between these diodes?

A: The ES1D-LTP provides an extended operating temperature range (-65°C ~ 175°C) compared to the SF13M-TP (-65°C ~ 150°C). This represents a 25°C extension at the upper temperature limit, providing additional thermal margin for high-temperature applications.

Q: Do both components meet the same compliance standards?

A: Yes. Both the SF13M-TP and ES1D-LTP are RoHS3 compliant, carry identical moisture sensitivity level (MSL 1), and share the same ECCN (EAR99) and HTSUS (8541.10.0080) classifications.

Q: Is the package footprint identical between these two diodes?

A: Yes. Both components utilize the DO-214AC (SMA) surface mount package. No PCB layout modifications are required for substitution.

Q: What is the forward voltage specification for the ES1D-LTP?

A: The ES1D-LTP forward voltage is specified as 950 mV maximum at 1 A forward current. This specification was not provided for the SF13M-TP in the available documentation.

Q: Are there any electrical parameter differences that would affect circuit performance?

A: The reverse recovery time (35 ns) and capacitance (15 pF @ 4 V, 1 MHz) are identical between both components. The reverse leakage current specification is equivalent (5 µA at rated voltage). The ES1D-LTP provides a higher voltage rating, which does not negatively impact circuits designed for 150 V operation.