SA90CA B0G Equivalent & Substitute Parts

Part Overview

The SA90CA B0G is a Transient Voltage Suppressor (TVS) diode manufactured by Taiwan Semiconductor Corporation, designed for general-purpose voltage protection applications. This component features a 90V reverse standoff voltage with a 146V maximum clamping voltage and 3.5A peak pulse current capability in a through-hole DO-204AC (DO-15) axial package. The SA90CA B0G is currently discontinued at DiGi Electronics, necessitating identification of functionally equivalent alternatives to maintain circuit design continuity and procurement availability.

Substiute Parts

SA90CA B0G

Taiwan Semiconductor CorporationIn Stock: 1004SA90CA B0G Datasheet

Current PartRFQ

SA90CA A0G

Taiwan Semiconductor CorporationIn Stock: 950SA90CA A0G Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SA90CA B0G is determined by strict equivalence across the following critical parameters:

• Voltage Rating: Reverse standoff voltage of 90V, breakdown voltage minimum of 100V, and maximum clamping voltage of 146V
• Current Handling: Peak pulse current of 3.5A at 10/1000µs pulse duration
• Power Dissipation: Peak pulse power rating of 500W
• Package Configuration: Through-hole mounting in DO-204AC (DO-15) axial format
• Device Type: Zener-type TVS diode with single bidirectional channel
• Temperature Range: Operating junction temperature range of -55°C to 175°C

Parts meeting all these electrical and mechanical specifications are classified as direct equivalents. Compliance certifications (RoHS3, REACH Unaffected) and moisture sensitivity level (MSL 1) remain consistent across equivalent devices.

Parameter Comparison

Engineering Selection Recommendations

The SA90CA A0G serves as a direct functional equivalent to the discontinued SA90CA B0G. Both components are manufactured by Taiwan Semiconductor Corporation and share identical electrical specifications across all critical parameters: 90V reverse standoff voltage, 146V clamping voltage, 3.5A peak pulse current, and 500W peak pulse power rating. Both devices are housed in the DO-204AC (DO-15) through-hole axial package and operate across the same temperature range of -55°C to 175°C.

The primary distinction between these parts is product status: the SA90CA B0G is discontinued, while the SA90CA A0G maintains active status with confirmed inventory availability (901 pieces in stock). Both components satisfy identical compliance requirements, including RoHS3 compliance, REACH Unaffected status, and MSL 1 moisture sensitivity classification.

For applications requiring the SA90CA B0G, the SA90CA A0G provides complete electrical and mechanical interchangeability without design modification or circuit re-evaluation.

Frequently Asked Questions (FAQ)

Q: Can the SA90CA A0G be used as a direct replacement for the SA90CA B0G?

A: Yes. The SA90CA A0G is electrically and mechanically identical to the SA90CA B0G across all specified parameters, including voltage ratings, current handling, power dissipation, package format, and operating temperature range. Direct substitution is supported without circuit modification.

Q: What are the key electrical parameters that define substitution compatibility?

A: Substitution compatibility is determined by matching the following parameters: reverse standoff voltage (90V), breakdown voltage minimum (100V), maximum clamping voltage (146V), peak pulse current (3.5A at 10/1000µs), peak pulse power (500W), and operating temperature range (-55°C to 175°C). All these parameters are identical between the SA90CA B0G and SA90CA A0G.

Q: Are the package configurations identical?

A: Yes. Both the SA90CA B0G and SA90CA A0G utilize the DO-204AC (DO-15) through-hole axial package format. Physical dimensions, lead spacing, and mounting characteristics are identical, enabling direct board-level substitution.

Q: Do compliance certifications differ between these parts?

A: No. Both components maintain identical compliance status: RoHS3 compliant, REACH Unaffected, and MSL 1 (Unlimited moisture sensitivity level). Regulatory and environmental requirements are satisfied equally by both parts.

Q: Why is the SA90CA B0G discontinued?

A: The SA90CA B0G is discontinued at DiGi Electronics. The SA90CA A0G remains in active production and is the current equivalent offering from Taiwan Semiconductor Corporation for this voltage and current rating.

Q: Are there any performance differences between the SA90CA B0G and SA90CA A0G?

A: No performance differences exist. Both devices are specified identically across all electrical and thermal parameters. The only distinction is product lifecycle status.