SB1230-TP Equivalent & Substitute Parts

Part Overview

The SB1230-TP is a Schottky rectifier diode manufactured by Micro Commercial Co, housed in a DO-201AD axial through-hole package with a rated current capacity of 3A. This component is classified as obsolete, necessitating identification of active equivalent parts for ongoing design requirements and procurement needs. Substitute parts must maintain functional compatibility through matching electrical ratings and mechanical packaging specifications.

Substiute Parts

SB1230-TP

Micro Commercial CoIn Stock: 989SB1230-TP Datasheet

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SR303 A0G

Taiwan Semiconductor CorporationIn Stock: 1189SR303 A0G Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the SB1230-TP is determined by the following critical parameters:

Electrical Compatibility:

• Schottky diode technology classification
• Current rating of 3A minimum
• Reverse voltage rating sufficient for application requirements

Mechanical Compatibility:

• DO-201AD axial package format
• Through-hole mounting configuration

Regulatory Compliance:

• ROHS3 compliance status
• Moisture Sensitivity Level 1 classification

The SR303 A0G meets all substitution criteria through identical package specification (DO-201AD, Axial), matching current rating (3A), and equivalent regulatory compliance (ROHS3 Compliant, MSL 1). The SR303 A0G operates as an active product with documented electrical specifications including 30V reverse voltage rating and fast recovery characteristics.

Parameter Comparison

Engineering Selection Recommendations

The SR303 A0G serves as the primary substitute for the obsolete SB1230-TP based on the following factors:

Product Status: The SR303 A0G maintains active product status with current manufacturing and distribution support, eliminating supply chain discontinuity associated with the obsolete SB1230-TP.

Regulatory Compliance: Both components achieve ROHS3 compliance and MSL 1 classification, ensuring compatibility with modern manufacturing and environmental standards.

Electrical and Mechanical Specifications: The SR303 A0G provides identical current rating (3A) and package configuration (DO-201AD, Axial, Through Hole), enabling direct mechanical and electrical substitution without circuit board redesign.

Documented Performance: The SR303 A0G includes complete electrical characterization including reverse voltage (30V), forward voltage drop (550 mV @ 3A), and operating temperature range (-55°C ~ 125°C), providing design verification data not available for the obsolete SB1230-TP.

Frequently Asked Questions (FAQ)

Q: Can the SR303 A0G be used as a direct replacement for the SB1230-TP?

A: Yes. Both components share identical package specification (DO-201AD, Axial), mounting type (Through Hole), current rating (3A), and regulatory compliance status (ROHS3, MSL 1). No circuit board modifications are required.

Q: What is the primary advantage of substituting to the SR303 A0G?

A: The SR303 A0G is an active product with ongoing manufacturing support, whereas the SB1230-TP is obsolete. This ensures long-term component availability and supply chain stability.

Q: Are there electrical performance differences between the SB1230-TP and SR303 A0G?

A: The SR303 A0G provides documented electrical specifications (30V reverse voltage, 550 mV forward voltage @ 3A, -55°C to 125°C operating range). The SB1230-TP specifications are not fully documented in available data. The SR303 A0G specifications are suitable for standard Schottky rectifier applications requiring 3A current capacity.

Q: Does the SR303 A0G fit the same circuit board footprint as the SB1230-TP?

A: Yes. Both components use the DO-201AD axial package format with identical through-hole lead configuration, requiring no PCB layout modifications.

Q: Are there alternative substitutes listed for the SR303 A0G?

A: The SR303 A0G documentation references additional equivalent parts including 1N5821-E3/54, 1N5821-TP, SB530-E3/54, SB530, and SB330-E3/54. These alternatives maintain the same package and current rating specifications.

Q: What compliance certifications apply to the SR303 A0G?

A: The SR303 A0G is ROHS3 compliant, REACH unaffected, and classified as MSL 1 (Unlimited moisture sensitivity level). These certifications match the SB1230-TP compliance profile.