SA11AHB0G Equivalent & Substitute Parts

Part Overview

The SA11AHB0G is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Taiwan Semiconductor Corporation, designed for transient overvoltage protection in electronic circuits. This component features an 11V reverse standoff voltage with an 18.2V maximum clamping voltage and 28A peak pulse current capability in a through-hole DO-204AC (DO-15) axial package. The SA11AHB0G is classified as discontinued at DiGi Electronics, necessitating identification of equivalent substitute components that maintain identical electrical and mechanical specifications for continued system design and production support.

Substiute Parts

SA11AHB0G

Taiwan Semiconductor CorporationIn Stock: 908SA11AHB0G Datasheet

Current PartRFQ

SA11AHA0G

Taiwan Semiconductor CorporationIn Stock: 713SA11AHA0G Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SA11AHB0G is determined by strict equivalence across all critical electrical and mechanical parameters. The substitute part must maintain identical specifications in the following categories:

Electrical Parameters:

• Reverse standoff voltage: 11V (Typ)
• Breakdown voltage minimum: 12.2V
• Maximum clamping voltage at peak pulse current: 18.2V
• Peak pulse current rating: 28A (10/1000µs)
• Peak pulse power dissipation: 500W
• Operating temperature range: -55°C to 175°C (TJ)

Mechanical & Compliance Parameters:

• Package type: DO-204AC (DO-15) axial through-hole
• Automotive grade classification
• AEC-Q101 qualification
• ROHS3 compliance
• MSL rating: 1 (Unlimited)
• REACH unaffected status

The SA11AHB0G belongs to the SA series base product family. Substitute parts must originate from the same manufacturer and maintain identical part designation structure with only the suffix designation varying, indicating alternative manufacturing or packaging batches with equivalent performance characteristics.

Parameter Comparison

Engineering Selection Recommendations

The SA11AHA0G serves as a direct functional equivalent to the SA11AHB0G for applications requiring 11V reverse standoff TVS diode protection with 18.2V clamping characteristics. Both components are manufactured by Taiwan Semiconductor Corporation and maintain identical electrical performance specifications across all rated parameters.

The primary distinction between these components is product status: the SA11AHB0G is discontinued at DiGi Electronics, while the SA11AHA0G maintains active product status. Both components carry automotive-grade classification with AEC-Q101 qualification, confirming suitability for automotive and industrial applications requiring transient overvoltage suppression.

Compliance certifications are equivalent across both parts: ROHS3 compliance, REACH unaffected status, and MSL rating of 1 (Unlimited) ensure compatibility with modern manufacturing and environmental requirements. The through-hole DO-204AC (DO-15) axial package format is identical, permitting direct board-level substitution without circuit layout modifications.

Selection of the SA11AHA0G over the discontinued SA11AHB0G is supported by maintained availability and active product status, ensuring continued supply chain access for production and replacement applications.

Frequently Asked Questions (FAQ)

Q: Can the SA11AHA0G be used as a direct replacement for the SA11AHB0G in existing circuit designs?

A: Yes. The SA11AHA0G is electrically and mechanically equivalent to the SA11AHB0G. All electrical parameters, including reverse standoff voltage (11V), clamping voltage (18.2V), and peak pulse current (28A), are identical. The through-hole DO-204AC (DO-15) axial package format is unchanged, permitting direct substitution without circuit modifications.

Q: What is the difference between the SA11AHB0G and SA11AHA0G part numbers?

A: The suffix designation (B versus A) indicates different manufacturing batches or packaging variants from Taiwan Semiconductor Corporation. Both parts maintain identical electrical specifications and automotive-grade AEC-Q101 qualification. The primary difference is product status: SA11AHB0G is discontinued, while SA11AHA0G is active.

Q: Are both parts suitable for automotive applications?

A: Yes. Both the SA11AHB0G and SA11AHA0G carry automotive-grade classification and AEC-Q101 qualification, confirming suitability for automotive transient overvoltage protection circuits.

Q: What are the key electrical parameters that define substitution compatibility for this TVS diode?

A: Substitution compatibility is determined by: reverse standoff voltage (11V), breakdown voltage minimum (12.2V), maximum clamping voltage at peak pulse current (18.2V), peak pulse current rating (28A), and peak pulse power dissipation (500W). All substitute parts must maintain these specifications within the operating temperature range of -55°C to 175°C (TJ).

Q: Does the package format differ between these parts?

A: No. Both the SA11AHB0G and SA11AHA0G use the identical DO-204AC (DO-15) axial through-hole package format. No board layout or footprint modifications are required for substitution.

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

A: No. Both parts maintain identical compliance status: ROHS3 compliant, REACH unaffected, and MSL rating of 1 (Unlimited). Environmental and regulatory requirements are equivalent.

Q: Why is the SA11AHB0G discontinued while the SA11AHA0G remains active?

A: Product discontinuation decisions are made by manufacturers based on production planning and market demand. The SA11AHA0G remains in active production and is the recommended source for new designs and replacement inventory.