P6SMB180A-M3/5B Equivalent & Substitute Parts

Part Overview

The P6SMB180A-M3/5B is a unidirectional Zener transient voltage suppressor (TVS) diode manufactured by Vishay General Semiconductor - Diodes Division. This surface mount component operates in the 154V reverse standoff voltage class with a 246V maximum clamping voltage and 2.4A peak pulse current rating. The device is designed for general purpose transient voltage suppression applications and is currently in active production status with 948 units in stock. Equivalent parts are identified to support procurement flexibility, supply chain continuity, and design standardization across manufacturing environments.

Key Parameters

Parameter	Value	Unit
Voltage - Reverse Standoff (Typ)	154	V
Voltage - Breakdown (Min)	171	V
Voltage - Clamping (Max) @ Ipp	246	V
Current - Peak Pulse (10/1000µs)	2.4	A
Power - Peak Pulse	600	W
Operating Temperature Range	-65 to 150	°C (TJ)
Mounting Type	Surface Mount	—
Package / Case	DO-214AA, SMB	—
Type	Zener	—
Unidirectional Channels	1	—

Substitute Part Grouping Explanation

Substitution eligibility for the P6SMB180A-M3/5B 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): minimum 2.4A
Power - Peak Pulse: 600W
Mounting Type: Surface Mount
Package / Case: DO-214AA or SMB
Type: Zener
Unidirectional Channels: 1

The substitute part P6SMB180A from Eaton - Electronics Division meets all critical electrical parameters and maintains functional equivalence. Both parts operate within the same voltage class, deliver identical clamping performance, and are housed in compatible SMB surface mount packages. Differences in operating temperature range and peak pulse current do not preclude substitution when the substitute meets or exceeds the minimum requirements of the original specification.

Parameter Comparison

Parameter	P6SMB180A-M3/5B (Vishay)	P6SMB180A (Eaton)	Match Status
Voltage - Reverse Standoff (Typ)	154V	154V	Equivalent
Voltage - Breakdown (Min)	171V	171V	Equivalent
Voltage - Clamping (Max) @ Ipp	246V	246V	Equivalent
Current - Peak Pulse (10/1000µs)	2.4A	2.5A	Substitute Exceeds
Power - Peak Pulse	600W	600W	Equivalent
Operating Temperature Range	-65 to 150°C	-55 to 150°C	Substitute Limited
Mounting Type	Surface Mount	Surface Mount	Equivalent
Package / Case	DO-214AA, SMB	DO-214AA, SMB	Equivalent
Type	Zener	Zener	Equivalent
Unidirectional Channels	1	1	Equivalent
RoHS Status	ROHS3 Compliant	RoHS Compliant	Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	Equivalent

Engineering Selection Recommendations

The P6SMB180A from Eaton - Electronics Division is a direct functional equivalent to the P6SMB180A-M3/5B. Both components are active production items with full RoHS compliance and identical moisture sensitivity ratings. The Eaton substitute provides equivalent electrical performance across all critical voltage and power parameters, with peak pulse current capability that exceeds the original specification by 0.1A.

Selection between the original and substitute part should be based on procurement availability, supply chain requirements, and application-specific operating temperature constraints. The Vishay part supports operation down to -65°C, while the Eaton substitute operates from -55°C minimum. For applications requiring extended low-temperature performance below -55°C, the original P6SMB180A-M3/5B is required. For standard industrial and telecom applications within the -55 to 150°C range, either part is suitable.

Frequently Asked Questions (FAQ)

Q: Can the Eaton P6SMB180A replace the Vishay P6SMB180A-M3/5B in all applications?

A: The Eaton substitute is functionally equivalent for applications operating within the -55 to 150°C temperature range. If your application requires operation below -55°C, the original Vishay part is necessary.

Q: What is the difference between the packaging designations TB and TR?

A: TB (Tape & Box) and TR (Tape & Reel) refer to the physical packaging format for shipment and handling. Both contain the same component in DO-214AA SMB package format. Selection depends on manufacturing assembly requirements and inventory management practices.

Q: Are the electrical characteristics identical between these parts?

A: The critical electrical parameters—reverse standoff voltage, breakdown voltage, clamping voltage, and power rating—are identical. The Eaton part provides 2.5A peak pulse current versus 2.4A for the Vishay part, representing a performance improvement rather than a limitation.

Q: Do both parts meet the same compliance standards?

A: Both parts are RoHS compliant with MSL 1 (Unlimited) moisture sensitivity rating. The Vishay part carries ROHS3 certification while the Eaton part carries RoHS certification. Both are suitable for regulated manufacturing environments.

Q: What is the significance of the series designation P6SMB?

A: P6SMB identifies the product family and voltage class. Both the original and substitute parts belong to this series, confirming their functional relationship and interchangeability within the specified parameters.

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