SA20A B0G Equivalent & Substitute Parts

Part Overview

The SA20A B0G is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Taiwan Semiconductor Corporation, designed for general-purpose overvoltage protection applications. This component features a 20V reverse standoff voltage with a 43V maximum clamping voltage and 16A peak pulse current capability in a through-hole DO-204AC (DO-15) axial package.

The SA20A B0G is currently discontinued at DiGi Electronics. Identifying equivalent substitute parts ensures continued availability for circuit protection applications requiring identical electrical and mechanical specifications.

Substiute Parts

SA20A B0G

Taiwan Semiconductor CorporationIn Stock: 831SA20A B0G Datasheet

Current PartRFQ

SA20A A0G

Taiwan Semiconductor CorporationIn Stock: 814SA20A A0G Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SA20A B0G are identified based on strict equivalence across all critical electrical and mechanical parameters. The substitution logic requires exact matching of the following parameters:

• Voltage - Reverse Standoff (Typ): 20V
• Voltage - Breakdown (Min): 22.2V
• Voltage - Clamping (Max) @ Ipp: 43V
• Current - Peak Pulse (10/1000µs): 16A
• Power - Peak Pulse: 500W
• Operating Temperature Range: -55°C to 175°C (TJ)
• Package / Case: DO-204AC, DO-15, Axial
• Mounting Type: Through Hole
• Type: Zener
• Unidirectional Channels: 1

Only parts meeting all these criteria are classified as direct substitutes. Variations in any parameter disqualify a part from this equivalence group.

Parameter Comparison

Engineering Selection Recommendations

The SA20A A0G is a direct substitute for the SA20A B0G. Both components are manufactured by Taiwan Semiconductor Corporation and share identical electrical specifications and mechanical packaging.

The primary distinction between these parts is product status: the SA20A B0G is discontinued at DiGi Electronics, while the SA20A A0G maintains active status. For new designs or ongoing production requiring 20V standoff TVS diode protection with 43V clamping and 16A peak pulse capability, the SA20A A0G is the appropriate selection.

Both parts maintain ROHS3 compliance, REACH unaffected status, and identical environmental operating ranges (-55°C to 175°C junction temperature). Moisture sensitivity level and regulatory classifications (ECCN, HTSUS) are identical across both components.

Frequently Asked Questions (FAQ)

Q: Can the SA20A A0G be used as a direct replacement for the SA20A B0G in existing circuits?

A: Yes. The SA20A A0G is electrically and mechanically identical to the SA20A B0G. All voltage ratings, current specifications, temperature ranges, and package configurations match exactly. Direct substitution is valid without circuit modification.

Q: What is the difference between the SA20A B0G and SA20A A0G?

A: The components are functionally identical. The difference lies in product status: SA20A B0G is discontinued at DiGi Electronics, while SA20A A0G is active. The alphanumeric suffix (B0G vs. A0G) indicates different manufacturing batches or revisions, but electrical and mechanical specifications remain unchanged.

Q: Are both parts available in the same DO-204AC (DO-15) axial package?

A: Yes. Both the SA20A B0G and SA20A A0G are supplied in the DO-204AC (DO-15) through-hole axial package configuration. Physical dimensions and pin spacing are identical, enabling direct board-level substitution.

Q: Do these TVS diodes meet current compliance requirements?

A: Both components are ROHS3 compliant and REACH unaffected. ECCN classification is EAR99 for both parts. Regulatory and environmental compliance is identical across both components.

Q: What applications are these TVS diodes suitable for?

A: Both the SA20A B0G and SA20A A0G are rated for general-purpose transient voltage suppression. The 20V standoff voltage, 43V clamping voltage, and 16A peak pulse current support protection of 20V nominal circuits against transient overvoltage events.

Q: Is there a difference in operating temperature range between these parts?

A: No. Both components operate across the identical temperature range of -55°C to 175°C (junction temperature). Thermal performance and reliability characteristics are equivalent.