SF53-TP General Purpose Rectifier Diode Equivalent & Substitute Parts

Part Overview

The SF53-TP is a general purpose rectifier diode manufactured by Micro Commercial Co, rated for 150 V DC reverse voltage and 5 A average rectified current in a DO-201AD axial through-hole package. This component is classified as obsolete, necessitating identification of active equivalent and substitute parts for ongoing design requirements and procurement needs. The SF53-TP features fast recovery characteristics with a reverse recovery time of 35 ns and operates across a junction temperature range of -55°C to 150°C.

Substiute Parts

SF53-TP

Micro Commercial CoIn Stock: 957SF53-TP Datasheet

Current PartRFQ

SF53G-TP

Micro Commercial CoIn Stock: 787SF53G-TP Datasheet

DirectRFQ

ER501A_R2_00001

Panjit International Inc.In Stock: 810ER501A_R2_00001 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SF53-TP are classified into two categories based on parametric equivalence and product status:

Direct Manufacturer Substitute (Active Status): The SF53G-TP from Micro Commercial Co maintains identical electrical specifications for reverse voltage (150 V), average rectified current (5 A), forward voltage drop (950 mV @ 5 A), and reverse recovery time (35 ns). This part is in active production status, eliminating obsolescence concerns. The SF53G-TP operates across an extended lower temperature range (-65°C to 150°C) and exhibits marginally higher capacitance (50 pF vs. 45 pF @ 4V, 1MHz).

Parametric Equivalent (Alternative Manufacturer): The ER501A_R2_00001 from Panjit International Inc. provides parametric equivalence across all critical electrical specifications: 150 V reverse voltage, 5 A average rectified current, 950 mV forward voltage drop, and 35 ns reverse recovery time. This part is in active production and supplied in Tape & Reel packaging. The ER501A_R2_00001 exhibits superior reverse leakage characteristics (1 µA vs. 5 µA @ 150 V) and higher capacitance (65 pF @ 4V, 1MHz).

Substitution eligibility is determined by matching the following critical parameters: reverse voltage rating, average rectified current, forward voltage drop, reverse recovery time, package type (DO-201AD), and mounting configuration (through-hole axial).

Parameter Comparison

Engineering Selection Recommendations

SF53G-TP Selection: This part is the primary recommended substitute for the obsolete SF53-TP. Both components originate from the same manufacturer and maintain identical electrical performance specifications. The SF53G-TP is in active production status, ensuring long-term availability and supply chain stability. The extended lower operating temperature range (-65°C vs. -55°C) provides additional thermal margin for applications operating in cold environments. ROHS3 compliance and unlimited moisture sensitivity level (MSL 1) match the original part specifications.

ER501A_R2_00001 Selection: This parametric equivalent from Panjit International Inc. is suitable for applications where cross-manufacturer sourcing is acceptable. The ER501A_R2_00001 maintains all critical electrical specifications and offers superior reverse leakage performance (1 µA vs. 5 µA), which may benefit applications sensitive to leakage current. This part is supplied in Tape & Reel packaging, which differs from the main part's standard packaging but is compatible with automated assembly processes. ROHS3 compliance and REACH unaffected status confirm regulatory alignment.

Both substitute parts are in active production status, eliminating the obsolescence risk associated with the SF53-TP. Selection between SF53G-TP and ER501A_R2_00001 depends on packaging requirements, supply chain preferences, and leakage current sensitivity in the target application.

Frequently Asked Questions (FAQ)

Q: Can the SF53G-TP directly replace the SF53-TP in existing designs?

A: Yes. The SF53G-TP maintains identical electrical specifications for reverse voltage (150 V), average rectified current (5 A), forward voltage drop (950 mV @ 5 A), and reverse recovery time (35 ns). Both components use the DO-201AD axial through-hole package. The SF53G-TP is in active production, eliminating obsolescence concerns.

Q: What are the key differences between SF53G-TP and ER501A_R2_00001?

A: Both parts meet identical electrical specifications for voltage, current, and recovery time. The ER501A_R2_00001 exhibits lower reverse leakage current (1 µA vs. 5 µA @ 150 V) and higher capacitance (65 pF vs. 50 pF @ 4V, 1MHz). The ER501A_R2_00001 is supplied in Tape & Reel packaging, while SF53G-TP uses standard packaging. Both are ROHS3 compliant and in active production.

Q: Are there packaging differences between these substitute parts?

A: The SF53-TP and SF53G-TP use standard packaging configurations. The ER501A_R2_00001 is supplied in Tape & Reel (TR) format, which is compatible with automated assembly equipment but differs from the standard packaging of the other two parts. All three components use the DO-201AD axial through-hole package case.

Q: Do all substitute parts meet RoHS compliance requirements?

A: Yes. The SF53G-TP and ER501A_R2_00001 are both ROHS3 compliant, matching the compliance status of the original SF53-TP. The ER501A_R2_00001 additionally carries REACH unaffected status.

Q: What is the operating temperature range difference between these parts?

A: The SF53-TP and ER501A_R2_00001 operate across -55°C to 150°C. The SF53G-TP extends the lower temperature limit to -65°C, providing additional thermal margin for cold environment applications. All three parts maintain the same upper temperature limit of 150°C.

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

A: The SF53G-TP is the primary choice for new designs, as it is from the same manufacturer as the original part and maintains identical specifications with active production status. The ER501A_R2_00001 is suitable when cross-manufacturer sourcing is preferred or when the superior reverse leakage characteristics (1 µA) are beneficial to the application.