Equivalent & Substitute Parts for P6SMB120A-M3/5B

Part Overview

The P6SMB120A-M3/5B is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Vishay General Semiconductor - Diodes Division. This component operates as a Zener-type TVS device in the P6SMB series, designed for surface mount applications in the DO-214AA (SMB) package. The part is Active status and RoHS3 compliant. Substitute parts are necessary to address supply chain availability, packaging preferences, or inventory requirements while maintaining electrical and mechanical compatibility.

Substiute Parts

P6SMB120A-M3/5B

Vishay General Semiconductor - Diodes DivisionIn Stock: 918P6SMB120A-M3/5B Datasheet

Current PartRFQ

SZP6SMB120AT3G

Littelfuse Inc.In Stock: 920SZP6SMB120AT3G Datasheet

DirectRFQ

SMBJP6KE120A-TP

Micro Commercial CoIn Stock: 3757SMBJP6KE120A-TP Datasheet

UpgradeRFQ

P6SMB120A

Eaton - Electronics DivisionIn Stock: 47267P6SMB120A Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the P6SMB120A-M3/5B is determined by the following critical parameters:

• Voltage - Reverse Standoff (Typ): 102V
• Voltage - Breakdown (Min): 114V
• Voltage - Clamping (Max) @ Ipp: 165V
• Current - Peak Pulse (10/1000µs): 3.6A minimum
• Power - Peak Pulse: 600W
• Package / Case: DO-214AA, SMB
• Mounting Type: Surface Mount
• Type: Zener
• Unidirectional Channels: 1
• Operating Temperature Range: -65°C ~ 150°C (TJ)

All substitute parts listed maintain these core electrical specifications and package requirements. Variations in peak pulse current above 3.6A and packaging format (Tape & Reel versus Tape & Box) do not affect functional compatibility.

Parameter Comparison

Engineering Selection Recommendations

All substitute parts maintain Active product status and full compliance with RoHS and REACH regulations. Selection among these alternatives should be based on:

• Packaging format availability: P6SMB120A-M3/5B and SZP6SMB120AT3G are supplied in Tape & Reel format; P6SMB120A-M3/5B is supplied in Tape & Box format.
• Inventory levels: SMBJP6KE120A-TP (Micro Commercial Co) offers the highest stock availability at 3680 pieces.
• Temperature range: P6SMB120A (Eaton) operates from -55°C to 150°C, which is narrower than the -65°C to 150°C range of other alternatives.
• Automotive qualification: SZP6SMB120AT3G (Littelfuse) carries AEC-Q101 qualification for automotive applications.
• Peak pulse current: SMBJP6KE120A-TP and P6SMB120A (Eaton) provide 3.7A peak pulse current, exceeding the 3.6A specification of the main part.

Frequently Asked Questions (FAQ)

Q: Can SMBJP6KE120A-TP replace P6SMB120A-M3/5B directly?

A: Yes. Both parts maintain identical voltage specifications (102V standoff, 114V breakdown minimum, 165V clamping maximum), identical power rating (600W), identical package (DO-214AA, SMB), and identical operating temperature range (-65°C to 150°C). The 3.7A peak pulse current of SMBJP6KE120A-TP exceeds the 3.6A requirement, providing equivalent or superior performance.

Q: What is the difference between SZP6SMB120AT3G and P6SMB120A-M3/5B?

A: Both parts are electrically identical across all critical parameters. The primary differences are manufacturer (Littelfuse versus Vishay), packaging format (Tape & Reel versus Tape & Box), and automotive qualification (SZP6SMB120AT3G carries AEC-Q101 certification). Functional compatibility is maintained.

Q: Is the P6SMB120A (Eaton) suitable for applications requiring -65°C operation?

A: No. The Eaton P6SMB120A operates from -55°C to 150°C, which does not meet the -65°C lower temperature limit of the original specification. Use this part only in applications with minimum operating temperature of -55°C or higher.

Q: Does packaging format affect electrical performance?

A: No. Tape & Reel and Tape & Box packaging formats do not affect electrical characteristics or functional performance. Selection between formats is based on assembly process requirements and inventory management.

Q: Are all substitute parts RoHS compliant?

A: Yes. All substitute parts listed are RoHS compliant. P6SMB120A-M3/5B, SZP6SMB120AT3G, and SMBJP6KE120A-TP are ROHS3 compliant. P6SMB120A (Eaton) is RoHS compliant.