SD101A-TP Equivalent & Substitute Parts

Part Overview

The SD101A-TP is a Schottky rectifier diode manufactured by Micro Commercial Co, rated for 60 V DC reverse voltage and 15 mA average rectified current in a DO-35 through-hole package. This component is classified as obsolete, necessitating identification of equivalent and substitute parts for ongoing design support and procurement continuity. Active alternatives with matching or enhanced electrical characteristics are available from current manufacturers.

Substiute Parts

SD101A-TP

Micro Commercial CoIn Stock: 753SD101A-TP Datasheet

Current PartRFQ

1N6263

STMicroelectronicsIn Stock: 32191N6263 Datasheet

UpgradeRFQ

BAT42

STMicroelectronicsIn Stock: 45306BAT42 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SD101A-TP is determined by the following critical electrical and mechanical parameters:

Voltage Rating: The reverse voltage specification of 60 V establishes the maximum allowable reverse bias condition. Substitute parts must maintain this rating or exceed it without degrading circuit performance.

Current Rating: The average rectified current of 15 mA defines the forward current capacity. Substitute parts rated at or above this level are acceptable.

Forward Voltage Drop: The forward voltage specification of 1 V @ 15 mA ensures predictable voltage regulation and power dissipation characteristics in the application circuit.

Reverse Leakage Current: The reverse leakage specification of 200 nA @ 50 V establishes acceptable off-state current performance.

Package and Mounting: The DO-35 through-hole axial package ensures mechanical and electrical compatibility with existing PCB layouts and assembly processes.

Technology: Schottky diode technology is required to maintain the specified switching speed and forward voltage characteristics.

Substitute parts are classified into two categories:

Upgrade Equivalent: Parts with identical or superior electrical ratings across all critical parameters, enabling direct replacement without circuit modification.

Similar Alternative: Parts with different electrical ratings that may require circuit evaluation before implementation.

Parameter Comparison

Engineering Selection Recommendations

1N6263 (Upgrade Equivalent)

The 1N6263 manufactured by STMicroelectronics is an upgrade equivalent to the SD101A-TP. This part maintains identical voltage and current ratings (60 V, 15 mA) and forward voltage characteristics (1 V @ 15 mA). The 1N6263 is classified as active product status, ensuring long-term availability and supply chain continuity. Both parts are ROHS3 compliant and carry identical moisture sensitivity levels. The 1N6263 provides an extended operating temperature range (−65°C ~ 200°C) compared to the SD101A-TP maximum of 125°C, offering improved thermal performance in demanding applications. Direct substitution is supported without circuit modification.

BAT42 (Similar Alternative)

The BAT42 manufactured by STMicroelectronics is classified as a similar alternative. This part shares the same Schottky technology and DO-35 package but differs in electrical ratings: 30 V reverse voltage (versus 60 V) and 200 mA average rectified current (versus 15 mA). The BAT42 is suitable only for applications where the circuit voltage does not exceed 30 V and where higher current capacity is beneficial or neutral. The BAT42 exhibits higher reverse leakage current (500 nA @ 25 V) and longer reverse recovery time (5 ns) compared to the SD101A-TP (200 nA @ 50 V, 1 ns). Circuit evaluation is required before implementing the BAT42 as a substitute.

Both substitute parts are ROHS3 compliant and REACH unaffected, meeting regulatory requirements equivalent to the main part.

Frequently Asked Questions (FAQ)

Q: Can the 1N6263 be used as a direct replacement for the SD101A-TP?

A: Yes. The 1N6263 maintains identical voltage (60 V), current (15 mA), and forward voltage (1 V @ 15 mA) specifications. Both parts use Schottky technology and the DO-35 through-hole package. No circuit modification is required.

Q: What is the primary difference between the 1N6263 and BAT42?

A: The 1N6263 matches the SD101A-TP voltage and current ratings (60 V, 15 mA). The BAT42 has a lower reverse voltage rating (30 V) but higher current capacity (200 mA). The BAT42 is not suitable for circuits requiring 60 V reverse voltage protection.

Q: Why is the SD101A-TP classified as obsolete?

A: The SD101A-TP is no longer manufactured by Micro Commercial Co. Active alternatives from current manufacturers, such as the 1N6263, are available for new designs and replacement applications.

Q: Are the substitute parts available in the same packaging format?

A: Yes. Both the 1N6263 and BAT42 are supplied in DO-35 through-hole axial packages, matching the mechanical form factor of the SD101A-TP. The 1N6263 and BAT42 are available in Cut Tape (CT) packaging.

Q: Do the substitute parts meet the same regulatory compliance standards?

A: Yes. Both the 1N6263 and BAT42 are ROHS3 compliant and REACH unaffected, matching the compliance status of the SD101A-TP.

Q: What is the operating temperature range difference between the main part and substitutes?

A: The SD101A-TP operates to a maximum junction temperature of 125°C. The 1N6263 extends this range to −65°C ~ 200°C, providing broader thermal operating capability. The BAT42 operates from −65°C ~ 125°C.

Q: Can the BAT42 be used in a 60 V circuit?

A: No. The BAT42 is rated for a maximum reverse voltage of 30 V. Using it in a 60 V circuit exceeds its voltage rating and risks component failure.

Q: What inventory levels are available for each substitute part?

A: The 1N6263 has 3,200 pieces in stock. The BAT42 has 45,200 pieces in stock. The SD101A-TP has 682 pieces in stock as obsolete inventory.