P6SMB180AHM3_A/I Equivalent & Substitute Parts

Part Overview

The P6SMB180AHM3_A/I is a unidirectional Transient Voltage Suppressor (TVS) diode from Vishay General Semiconductor - Diodes Division, designed for telecom applications requiring transient protection. This component features a 154V reverse standoff voltage with 246V maximum clamping voltage and 2.4A peak pulse current capability in a surface mount DO-214AA (SMB) package. The part is currently classified as obsolete, necessitating identification of active equivalent alternatives to maintain design continuity and ensure supply chain availability.

Substiute Parts

P6SMB180AHM3_A/I

Vishay General Semiconductor - Diodes DivisionIn Stock: 968P6SMB180AHM3_A/I Datasheet

Current PartRFQ

P6SMB180AHM3_B/I

Vishay General Semiconductor - Diodes DivisionIn Stock: 935P6SMB180AHM3_B/I Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the P6SMB180AHM3_A/I is determined by strict equivalence across the following critical parameters:

• Voltage - Reverse Standoff (Typ): 154V
• Voltage - Breakdown (Min): 171V
• Voltage - Clamping (Max) @ Ipp: 246V
• Current - Peak Pulse (10/1000µs): 2.4A
• Power - Peak Pulse: 600W
• Package / Case: DO-214AA, SMB
• Unidirectional Channels: 1
• Operating Temperature Range: -65°C ~ 150°C (TJ)
• Automotive Grade and AEC-Q101 Qualification

The P6SMB180AHM3_B/I is classified as a manufacturer-recommended substitute. This part maintains identical electrical specifications and mechanical packaging while differing only in product status (Active vs. Obsolete) and packaging format (Tape & Reel vs. standard packaging). The active status of the substitute ensures continued availability and supply chain support.

Parameter Comparison

Engineering Selection Recommendations

The P6SMB180AHM3_B/I is the direct equivalent for the obsolete P6SMB180AHM3_A/I. Both parts are manufactured by Vishay and maintain identical electrical and mechanical specifications. The substitute part carries Active product status, ensuring long-term availability and supply chain continuity. Both parts meet automotive-grade requirements with AEC-Q101 qualification and ROHS3 compliance, making them suitable for equivalent circuit implementation without design modification. The primary distinction is packaging format: the substitute is supplied in Tape & Reel configuration, which is standard for high-volume production environments.

Frequently Asked Questions (FAQ)

Q: Can the P6SMB180AHM3_B/I be used as a direct replacement for the P6SMB180AHM3_A/I?

A: Yes. Both parts are electrically and mechanically identical, with matching voltage ratings (154V standoff, 246V clamping), current specifications (2.4A peak pulse), power dissipation (600W), and package format (DO-214AA SMB). The substitute is the manufacturer-recommended equivalent.

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

A: The primary difference is product status. The P6SMB180AHM3_A/I is obsolete, while the P6SMB180AHM3_B/I is active. Additionally, the substitute is supplied in Tape & Reel packaging, which is standard for production assembly. Electrical and mechanical specifications are identical.

Q: Are there any compatibility concerns with PCB assembly?

A: No. Both parts use the same DO-214AA (SMB) surface mount package with identical pin configuration and footprint. PCB designs require no modification for substitution.

Q: Do both parts meet automotive qualification requirements?

A: Yes. Both the P6SMB180AHM3_A/I and P6SMB180AHM3_B/I are automotive-grade components with AEC-Q101 qualification, suitable for automotive telecom applications.

Q: What is the operating temperature range for these parts?

A: Both parts operate across -65°C to 150°C junction temperature, meeting automotive environmental specifications.

Q: Are there any compliance or regulatory differences?

A: No. Both parts are ROHS3 compliant and REACH unaffected, with identical regulatory status.