SA85CA B0G Equivalent & Substitute Parts

Part Overview

The SA85CA B0G is a transient voltage suppressor (TVS) diode manufactured by Taiwan Semiconductor Corporation, designed for general-purpose overvoltage protection applications. This component features a 85V reverse standoff voltage with a 137V maximum clamping voltage and 3.8A peak pulse current capability in a through-hole DO-204AC (DO-15) axial package format.

The SA85CA B0G is currently discontinued at DiGi Electronics. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for applications utilizing this TVS diode specification.

Substiute Parts

SA85CA B0G

Taiwan Semiconductor CorporationIn Stock: 912SA85CA B0G Datasheet

Current PartRFQ

SA85CA A0G

Taiwan Semiconductor CorporationIn Stock: 838SA85CA A0G Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SA85CA B0G are identified based on electrical and mechanical parameter equivalence within the TVS diode category. The substitution logic is based on the following critical parameters:

Electrical Parameters:

• Voltage - Reverse Standoff (Typ): 85V
• Voltage - Breakdown (Min): 94.4V
• Voltage - Clamping (Max) @ Ipp: 137V
• Current - Peak Pulse (10/1000µs): 3.8A
• Power - Peak Pulse: 500W
• Operating Temperature Range: -55°C to 175°C (TJ)

Mechanical Parameters:

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

Parts meeting all specified electrical and mechanical parameters are classified as direct substitutes. Compliance certifications (RoHS3, REACH Unaffected) and moisture sensitivity level (MSL 1) are maintained across substitute selections.

Parameter Comparison

Engineering Selection Recommendations

The SA85CA A0G is a direct electrical and mechanical equivalent to the SA85CA B0G. Both components share identical specifications across all critical TVS diode parameters: reverse standoff voltage, breakdown voltage, clamping voltage, peak pulse current, and power dissipation rating. Both are housed in the DO-204AC (DO-15) through-hole axial package format.

The primary distinction between these parts is product status. The SA85CA B0G is discontinued at DiGi Electronics, while the SA85CA A0G maintains active product status. Both parts maintain equivalent compliance certifications: RoHS3 compliance, REACH Unaffected status, and MSL 1 moisture sensitivity level.

For applications currently specified with SA85CA B0G, the SA85CA A0G provides full functional and physical compatibility without design modification. Component selection should prioritize the active product status and current inventory availability of the SA85CA A0G.

Frequently Asked Questions (FAQ)

Q: Can the SA85CA A0G be used as a direct replacement for the SA85CA B0G?

A: Yes. The SA85CA A0G is electrically and mechanically equivalent to the SA85CA B0G. All electrical parameters—including 85V reverse standoff voltage, 137V clamping voltage, and 3.8A peak pulse current—are identical. Both components use the DO-204AC (DO-15) through-hole axial package. No circuit design modifications are required.

Q: What is the difference between the SA85CA B0G and SA85CA A0G?

A: The SA85CA B0G is discontinued at DiGi Electronics, while the SA85CA A0G maintains active product status. All electrical specifications, mechanical dimensions, and compliance certifications are identical between the two parts.

Q: Are there any compliance or certification differences between these parts?

A: No. Both the SA85CA B0G and SA85CA A0G carry identical compliance certifications: RoHS3 compliance, REACH Unaffected status, and MSL 1 (Unlimited) moisture sensitivity level.

Q: Can these TVS diodes be used in both polarities?

A: Yes. Both the SA85CA B0G and SA85CA A0G are bidirectional TVS diodes with one channel, providing transient voltage suppression in both forward and reverse bias directions.

Q: What is the operating temperature range for these components?

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

Q: Are there any package or mounting differences?

A: No. Both components are supplied in the DO-204AC (DO-15) axial through-hole package format with identical mechanical specifications and mounting requirements.