SA7.0AHB0G Equivalent & Substitute Parts

Part Overview

The SA7.0AHB0G is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Taiwan Semiconductor Corporation, designed for through-hole applications in automotive-grade circuits. This component provides transient overvoltage protection with a 7V reverse standoff voltage and 12V maximum clamping voltage at peak pulse current. The SA7.0AHB0G is discontinued at DiGi Electronics, necessitating identification of functionally equivalent alternatives that maintain identical electrical and mechanical specifications for seamless circuit board replacement.

Substiute Parts

SA7.0AHB0G

Taiwan Semiconductor CorporationIn Stock: 1106SA7.0AHB0G Datasheet

Current PartRFQ

SA7.0AHA0G

Taiwan Semiconductor CorporationIn Stock: 823SA7.0AHA0G Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SA7.0AHB0G 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: 7V (Typ)
• Breakdown voltage minimum: 7.78V
• Maximum clamping voltage at peak pulse current: 12V
• Peak pulse current rating: 43A (10/1000µs)
• Peak pulse power dissipation: 500W

Mechanical & Environmental Parameters:

• Package type: DO-204AC (DO-15) axial through-hole configuration
• Operating temperature range: -55°C to 175°C (TJ)
• Automotive grade classification
• AEC-Q101 qualification
• RoHS3 compliance
• MSL rating: 1 (Unlimited)

Manufacturer Requirement:

• Taiwan Semiconductor Corporation SA series TVS diodes

Only components meeting all specified parameters across these categories are classified as direct substitutes.

Parameter Comparison

Engineering Selection Recommendations

The SA7.0AHA0G serves as a direct functional equivalent to the discontinued SA7.0AHB0G. Both components are manufactured by Taiwan Semiconductor Corporation within the SA series and share identical electrical ratings, mechanical packaging, and automotive-grade certifications.

Selection Basis:

The SA7.0AHA0G maintains active product status, ensuring continued availability and supply chain reliability. Both parts carry AEC-Q101 automotive qualification and ROHS3 compliance, meeting regulatory requirements for automotive and industrial applications. The identical operating temperature range (-55°C to 175°C) and MSL rating (1, Unlimited) confirm compatibility in equivalent thermal and moisture environments.

The through-hole DO-204AC (DO-15) axial package configuration is identical between both parts, enabling direct board-level substitution without PCB redesign or mechanical rework. Electrical parameters—including 7V reverse standoff voltage, 7.78V minimum breakdown voltage, 12V maximum clamping voltage, 43A peak pulse current, and 500W peak pulse power—are fully matched, ensuring equivalent circuit protection performance.

Frequently Asked Questions (FAQ)

Q: Can SA7.0AHA0G replace SA7.0AHB0G in existing circuit designs?

A: Yes. The SA7.0AHA0G is a direct substitute with identical electrical specifications, package configuration, and automotive certifications. No circuit modifications are required.

Q: Are the package dimensions identical between SA7.0AHB0G and SA7.0AHA0G?

A: Both components use the DO-204AC (DO-15) axial through-hole package. Mechanical compatibility is confirmed for direct PCB substitution.

Q: What is the difference between SA7.0AHB0G and SA7.0AHA0G?

A: The primary difference is product status. SA7.0AHB0G is discontinued at DiGi Electronics, while SA7.0AHA0G maintains active availability. All electrical and mechanical specifications are identical.

Q: Do both parts meet automotive qualification standards?

A: Yes. Both SA7.0AHB0G and SA7.0AHA0G carry AEC-Q101 automotive qualification and are classified as automotive-grade components.

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

A: No. Both parts are ROHS3 compliant, REACH unaffected, and carry identical MSL ratings (1, Unlimited). Regulatory compliance is equivalent.

Q: What is the operating temperature range for these TVS diodes?

A: Both components operate across -55°C to 175°C junction temperature (TJ), suitable for automotive and industrial environments.

Q: Can these parts be used interchangeably in high-reliability applications?

A: Yes. Identical electrical ratings, automotive-grade classification, and AEC-Q101 qualification confirm interchangeability in high-reliability circuit protection applications.