P6SMB43AHM3_A/I Equivalent & Substitute Parts

Part Overview

The P6SMB43AHM3_A/I is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Vishay General Semiconductor - Diodes Division. This component is designed for transient overvoltage protection in telecom applications, featuring a 36.8V reverse standoff voltage and 59.3V maximum clamping voltage with 10.1A peak pulse current capability in a surface mount DO-214AA (SMB) package.

The P6SMB43AHM3_A/I carries an Obsolete product status. Identifying equivalent substitute parts is necessary to maintain design continuity and ensure component availability for production and field replacement applications.

Substiute Parts

P6SMB43AHM3_A/I

Vishay General Semiconductor - Diodes DivisionIn Stock: 1078P6SMB43AHM3_A/I Datasheet

Current PartRFQ

P6SMB43AHM3_B/I

Vishay General Semiconductor - Diodes DivisionIn Stock: 833P6SMB43AHM3_B/I Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the P6SMB43AHM3_A/I is determined by strict equivalence across the following critical parameters:

• Voltage - Reverse Standoff: 36.8V (Typ)
• Voltage - Breakdown: 40.9V (Min)
• Voltage - Clamping: 59.3V (Max) @ Ipp
• Current - Peak Pulse: 10.1A (10/1000µs)
• Power - Peak Pulse: 600W
• Package / Case: DO-214AA (SMB)
• Type: Zener, Unidirectional (1 channel)
• Operating Temperature Range: -65°C ~ 150°C (TJ)
• Automotive Grade with AEC-Q101 Qualification
• RoHS3 Compliance

The P6SMB43AHM3_B/I meets all these criteria and is classified as a direct manufacturer-recommended substitute. The primary distinction is product status (Active vs. Obsolete) and packaging format (Tape & Reel vs. standard packaging).

Parameter Comparison

Engineering Selection Recommendations

The P6SMB43AHM3_B/I is the manufacturer-recommended substitute for the obsolete P6SMB43AHM3_A/I. Both parts are manufactured by Vishay and share identical electrical and thermal specifications. The substitute maintains full compliance with automotive-grade requirements and AEC-Q101 qualification standards.

The primary operational difference is packaging format: the substitute is supplied in Tape & Reel (TR) configuration, which is standard for high-volume production environments. This packaging format does not affect component performance or electrical characteristics.

Both parts are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronic component manufacturing and distribution.

Frequently Asked Questions (FAQ)

Q: Can P6SMB43AHM3_B/I be used as a direct replacement for P6SMB43AHM3_A/I?

A: Yes. The P6SMB43AHM3_B/I is the manufacturer-recommended substitute. All electrical parameters, thermal ratings, package dimensions, and pin configurations are identical. The parts are functionally interchangeable in circuit design and PCB layout.

Q: What is the difference between the two part numbers?

A: The primary difference is packaging format. The P6SMB43AHM3_A/I uses standard packaging, while the P6SMB43AHM3_B/I is supplied in Tape & Reel (TR) format. This affects procurement and assembly processes but not component performance.

Q: Are both parts automotive-grade qualified?

A: Yes. Both the P6SMB43AHM3_A/I and P6SMB43AHM3_B/I carry automotive-grade classification with AEC-Q101 qualification. They meet the same reliability and performance standards for automotive applications.

Q: Does the Tape & Reel packaging affect circuit performance?

A: No. Tape & Reel packaging is a supply format used for automated assembly processes. Once the component is removed from the tape and reel and soldered to the PCB, its electrical and thermal performance is identical to components supplied in other packaging formats.

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

A: No. Both parts maintain identical RoHS3 compliance and REACH unaffected status. They meet the same regulatory requirements for electronic component manufacturing and distribution.

Q: Why is the P6SMB43AHM3_A/I marked as Obsolete?

A: The P6SMB43AHM3_A/I has been superseded by the P6SMB43AHM3_B/I in the manufacturer's product line. The substitute part is actively manufactured and supported by Vishay, ensuring long-term availability and supply chain continuity.