SA60C-B Equivalent & Substitute Parts

Part Overview

The SA60C-B is a transient voltage suppressor (TVS) diode manufactured by Littelfuse Inc., designed for telecom applications. This bidirectional Zener diode operates with a 60V reverse standoff voltage and provides 96.8V clamping at peak pulse current. The device is packaged in a DO-204AC (DO-15) through-hole axial configuration and rated for 500W peak pulse power dissipation across an operating temperature range of -65°C to 175°C.

The SA60C-B carries an obsolete product status. Identifying equivalent substitute parts ensures design continuity and maintains supply chain reliability for applications requiring this voltage suppression specification.

Substiute Parts

SA60C-B

Littelfuse Inc.In Stock: 958SA60C-B Datasheet

Current PartRFQ

SA60CA

Taiwan Semiconductor CorporationIn Stock: 724SA60CA Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SA60C-B is determined by electrical and mechanical parameter equivalence within the TVS diode category. The following parameters establish substitution validity:

Critical Electrical Parameters:

• Voltage - Reverse Standoff (Typ): 60V
• Voltage - Clamping (Max) @ Ipp: 96.8V
• Current - Peak Pulse (10/1000µs): 5.3A minimum
• Power - Peak Pulse: 500W

Critical Mechanical Parameters:

• Package / Case: DO-204AC (DO-15) Axial
• Mounting Type: Through Hole
• Bidirectional Channels: 1

The SA60CA qualifies as a direct substitute based on matching all critical electrical specifications and identical package configuration. The SA60CA maintains the same voltage ratings, clamping characteristics, and power dissipation capability while providing equivalent through-hole axial mounting compatibility.

Parameter Comparison

Engineering Selection Recommendations

The SA60CA serves as a direct electrical and mechanical substitute for the SA60C-B. Both devices maintain identical voltage suppression characteristics (60V standoff, 96.8V clamping) and package configuration (DO-204AC through-hole axial).

Compliance Considerations:

The SA60CA carries active product status from Taiwan Semiconductor Corporation, ensuring ongoing availability and supply chain support. Both the original SA60C-B and substitute SA60CA meet RoHS compliance requirements, with the SA60CA additionally certified to ROHS3 standards and REACH unaffected status.

Temperature Range Consideration:

The SA60CA operating temperature range (-55°C to 175°C) is narrower than the SA60C-B (-65°C to 175°C) at the lower temperature extreme. Applications requiring operation below -55°C require verification against specific system requirements.

Peak Pulse Current:

The SA60CA provides 5.4A peak pulse current capability, which exceeds the SA60C-B specification of 5.3A. This represents a performance enhancement with no derating impact on the original design.

Frequently Asked Questions (FAQ)

Q: Can the SA60CA directly replace the SA60C-B in existing designs?

A: The SA60CA provides electrical and mechanical equivalence for the SA60C-B. Both devices share identical voltage ratings (60V standoff, 96.8V clamping), power dissipation (500W), and DO-204AC through-hole axial packaging. The SA60CA peak pulse current (5.4A) exceeds the original specification (5.3A), presenting no functional limitation. Designs operating below -55°C require assessment against application temperature requirements.

Q: What is the primary reason for substitution?

A: The SA60C-B carries obsolete product status. The SA60CA, manufactured by Taiwan Semiconductor Corporation, maintains active production status and ensures continued component availability for new production and field replacement applications.

Q: Are there packaging differences between these parts?

A: Both the SA60C-B and SA60CA utilize identical DO-204AC (DO-15) through-hole axial packaging. The SA60C-B is supplied in standard packaging, while the SA60CA is available in Tape & Reel (TR) format. Both configurations are mechanically and electrically compatible for through-hole PCB assembly.

Q: Do compliance certifications differ between these parts?

A: Both parts meet RoHS compliance. The SA60CA carries ROHS3 certification and REACH unaffected status, representing current regulatory compliance standards. The SA60C-B meets RoHS compliance as originally specified.

Q: What is the significance of the peak pulse current difference?

A: The SA60CA provides 5.4A peak pulse current compared to the SA60C-B specification of 5.3A. This 0.1A increase represents enhanced performance capability with no negative impact on circuit design or component reliability.

Q: Are there application differences between the original and substitute?

A: The SA60C-B is specified for telecom applications, while the SA60CA is designated for general purpose applications. Both devices function identically within the specified electrical parameters and are suitable for transient voltage suppression across equivalent application categories.