SA54CA B0G Equivalent & Substitute Parts

Part Overview

The SA54CA B0G is a transient voltage suppressor (TVS) diode manufactured by Taiwan Semiconductor Corporation, designed for general-purpose voltage clamping applications. This component features a 54V reverse standoff voltage with an 87.1V maximum clamping voltage and 6A peak pulse current capability in a through-hole DO-204AC (DO-15) axial package. The SA54CA B0G is currently discontinued at DiGi Electronics, necessitating identification of functionally equivalent alternatives to maintain design continuity and ensure component availability for production and repair applications.

Substiute Parts

SA54CA B0G

Taiwan Semiconductor CorporationIn Stock: 1137SA54CA B0G Datasheet

Current PartRFQ

SA54CA A0G

Taiwan Semiconductor CorporationIn Stock: 1138SA54CA A0G Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SA54CA B0G is determined by strict equivalence across all critical electrical and mechanical parameters. The substitute part must maintain identical specifications for voltage ratings (reverse standoff, breakdown, and clamping voltages), peak pulse current, power dissipation capability, package type, and operating temperature range. The SA54CA B0G belongs to the SA series base product family (SA54), and substitutes are identified within this same series and manufacturer lineage.

The primary substitution criterion is the matching of all electrical performance parameters:

• Voltage - Reverse Standoff (Typ): 54V
• Voltage - Breakdown (Min): 60V
• Voltage - Clamping (Max) @ Ipp: 87.1V
• Current - Peak Pulse (10/1000µs): 6A
• Power - Peak Pulse: 500W

Secondary criteria include package compatibility (DO-204AC/DO-15 axial through-hole), thermal operating range (-55°C to 175°C), and compliance certifications (RoHS3, REACH Unaffected).

Parameter Comparison

Engineering Selection Recommendations

The SA54CA A0G serves as the direct functional equivalent to the SA54CA B0G. Both components are manufactured by Taiwan Semiconductor Corporation and share identical electrical specifications, package configuration, and compliance certifications. The SA54CA A0G differs only in product status, maintaining an active availability status compared to the discontinued SA54CA B0G.

Selection of the SA54CA A0G is appropriate for applications requiring the SA54CA B0G specifications. The substitute part maintains full compliance with RoHS3 and REACH requirements, ensuring regulatory alignment with the original component. The through-hole DO-204AC (DO-15) axial package format is identical, permitting direct board-level substitution without layout modifications.

The SA54CA A0G is currently in stock with 1057 pieces available as new original inventory, providing supply continuity for production and field replacement requirements.

Frequently Asked Questions (FAQ)

Q: Can the SA54CA A0G be used as a direct replacement for the SA54CA B0G?

A: Yes. The SA54CA A0G is electrically and mechanically identical to the SA54CA B0G across all specified parameters, including voltage ratings, current capacity, power dissipation, package type, and operating temperature range. Direct substitution is supported without circuit modifications.

Q: What is the difference between the SA54CA B0G and SA54CA A0G?

A: The components are functionally equivalent. The primary difference is product status: the SA54CA B0G is discontinued at DiGi Electronics, while the SA54CA A0G maintains active status with current inventory availability.

Q: Are the packages identical between these two parts?

A: Yes. Both the SA54CA B0G and SA54CA A0G use the DO-204AC (DO-15) axial through-hole package. No board layout or footprint changes are required for substitution.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the SA54CA B0G and SA54CA A0G are RoHS3 compliant and REACH unaffected, meeting identical regulatory requirements.

Q: What are the critical voltage parameters for this TVS diode?

A: The critical voltage parameters are: 54V reverse standoff voltage (typical), 60V minimum breakdown voltage, and 87.1V maximum clamping voltage at peak pulse current. These parameters define the component's protective characteristics and must be matched for substitution.

Q: Can this TVS diode be used for power line protection applications?

A: No. The SA54CA B0G and SA54CA A0G are designated for general-purpose applications and do not support power line protection functions.

Q: What is the peak pulse current rating?

A: The peak pulse current rating is 6A at a 10/1000µs pulse duration, with a corresponding peak pulse power rating of 500W.

Q: What is the operating temperature range?

A: Both components operate across a junction temperature range of -55°C to 175°C (TJ), suitable for industrial and extended-temperature applications.