P6SMB9.1CA Equivalent & Substitute Parts

Part Overview

The P6SMB9.1CA is a bidirectional Zener transient voltage suppressor (TVS) diode manufactured by Littelfuse Inc., designed for general-purpose overvoltage protection applications. This surface-mount component operates across a temperature range of -55°C to 150°C and is RoHS3 compliant. The part is currently in active production status with substantial inventory availability (30,300 pcs). Substitute parts may be required due to supply chain constraints, regional availability, or specific application requirements while maintaining equivalent electrical and mechanical performance.

Substiute Parts

P6SMB9.1CA

Littelfuse Inc.In Stock: 30373P6SMB9.1CA Datasheet

Current PartRFQ

P6SMB9-1CA

Eaton - Electronics DivisionIn Stock: 6959P6SMB9-1CA Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the P6SMB9.1CA is determined by the following critical parameters:

• Voltage - Reverse Standoff (Typ): 7.78V
• Voltage - Breakdown (Min): 8.65V
• Voltage - Clamping (Max) @ Ipp: 13.4V
• Operating Temperature Range: -55°C ~ 150°C (TJ)
• Package / Case: DO-214AA, SMB (Surface Mount)
• Bidirectional Channels: 1
• Type: Zener

The P6SMB9-1CA, manufactured by Eaton - Electronics Division, meets all critical electrical and mechanical substitution criteria. Both parts share identical voltage specifications, temperature operating range, and package configuration. The substitute maintains the same series designation (P6SMB) and functional classification as a bidirectional Zener TVS diode.

Parameter Comparison

Engineering Selection Recommendations

Both the P6SMB9.1CA and P6SMB9-1CA are active production components with full RoHS compliance. The primary distinction between these parts is the peak pulse current specification: the Littelfuse part is rated at 45.5A, while the Eaton equivalent is rated at 4.9A. This difference must be evaluated against circuit requirements. Both parts maintain identical voltage clamping characteristics, temperature operating range, and package configuration. Selection should be based on application current requirements and component availability. Both parts carry REACH compliance status and are classified under ECCN EAR99.

Frequently Asked Questions (FAQ)

Q: Can P6SMB9-1CA replace P6SMB9.1CA in all applications?

A: Substitution is valid only when the application peak pulse current requirement does not exceed 4.9A. The P6SMB9-1CA is rated for 4.9A peak pulse current, compared to 45.5A for the P6SMB9.1CA. Voltage clamping, temperature range, and package specifications are identical.

Q: Are the package dimensions identical between these parts?

A: Both parts use the DO-214AA (SMB) surface-mount package. Physical dimensions and PCB footprints are compatible.

Q: What is the difference in RoHS compliance between these parts?

A: The P6SMB9.1CA is RoHS3 compliant, while the P6SMB9-1CA is RoHS compliant. Both meet current regulatory requirements for hazardous substance restrictions.

Q: Do both parts have the same moisture sensitivity rating?

A: Yes. Both parts carry MSL 1 (Unlimited), indicating no moisture sensitivity restrictions for storage or handling.

Q: Are there application differences between the Littelfuse and Eaton versions?

A: The P6SMB9.1CA is specified for general-purpose applications, while the P6SMB9-1CA is specified for telecom applications. Both share identical electrical protection characteristics within their respective current ratings.