P6SMBJ8.2C Equivalent & Substitute Parts

Part Overview

The P6SMBJ8.2C is a bidirectional Transient Voltage Suppressor (TVS) diode manufactured by Littelfuse Inc., designed for general-purpose overvoltage protection in surface-mount applications. This component features a 7.02V reverse standoff voltage and 12.71V maximum clamping voltage with 50.4A peak pulse current capability in a DO-214AA (SMBJ) package. The part is currently listed as obsolete, necessitating identification of functionally equivalent alternatives from active product lines that maintain compatibility with existing circuit designs.

Substiute Parts

P6SMBJ8.2C

Littelfuse Inc.In Stock: 842P6SMBJ8.2C Datasheet

Current PartRFQ

P6SMB8.2CA

Taiwan Semiconductor CorporationIn Stock: 4130P6SMB8.2CA Datasheet

MFR RecommendedRFQ

SMBJ7.0CA-E3/5B

Vishay General Semiconductor - Diodes DivisionIn Stock: 725SMBJ7.0CA-E3/5B Datasheet

MFR RecommendedRFQ

SMBJ7.0CA-TP

Micro Commercial CoIn Stock: 6131SMBJ7.0CA-TP Datasheet

MFR RecommendedRFQ

SMBJ7V0CA

Taiwan Semiconductor CorporationIn Stock: 27077SMBJ7V0CA Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the P6SMBJ8.2C is determined by strict alignment of the following critical electrical and mechanical parameters:

• Reverse Standoff Voltage (Typ): 7.0V to 7.02V range
• Clamping Voltage (Max) @ Ipp: 12.0V to 12.71V range
• Peak Pulse Current (10/1000µs): 50A to 52A range
• Peak Pulse Power: 600W
• Package Type: DO-214AA (SMB or SMBJ variant)
• Mounting Type: Surface Mount
• Bidirectional Channels: 1
• Type: Zener
• RoHS Compliance: ROHS3 Compliant

All identified substitute parts maintain these parameters within acceptable engineering tolerances for direct circuit replacement without design modification.

Parameter Comparison

Engineering Selection Recommendations

All four substitute parts are classified as active products with current manufacturing status, providing supply chain continuity for the obsolete P6SMBJ8.2C. Each substitute maintains ROHS3 compliance and MSL Level 1 rating, ensuring compatibility with standard PCB assembly processes.

P6SMB8.2CA (Taiwan Semiconductor Corporation) provides the closest electrical match with identical 7.02V reverse standoff voltage and marginally lower clamping voltage (12.1V vs. 12.71V), supporting 52A peak pulse current within the acceptable range.

SMBJ7.0CA-E3/5B (Vishay General Semiconductor - Diodes Division) operates at 7V reverse standoff with 12V clamping voltage and 50A peak pulse current, representing a conservative electrical profile suitable for applications with tighter voltage margins.

SMBJ7.0CA-TP (Micro Commercial Co) delivers identical electrical specifications to SMBJ7.0CA-E3/5B with extended operating temperature range to 175°C, providing thermal headroom for high-temperature environments.

SMBJ7V0CA (Taiwan Semiconductor Corporation) matches SMBJ7.0CA-E3/5B and SMBJ7.0CA-TP electrical specifications with highest inventory availability (27,018 pcs), supporting rapid procurement requirements.

Frequently Asked Questions (FAQ)

Q: Can P6SMB8.2CA directly replace P6SMBJ8.2C in existing designs?

A: Yes. P6SMB8.2CA maintains identical reverse standoff voltage (7.02V) and equivalent clamping voltage (12.1V vs. 12.71V), peak pulse current (52A vs. 50.4A), and package configuration (DO-214AA SMB). Both components are ROHS3 compliant with MSL Level 1 rating.

Q: What is the difference between SMBJ and SMB package designations?

A: Both designations refer to the DO-214AA surface-mount package. SMBJ and SMB are equivalent package types used interchangeably by different manufacturers. All substitute parts are compatible with existing PCB footprints designed for DO-214AA packages.

Q: Are there temperature rating differences between substitute options?

A: SMBJ7.0CA-TP operates to 175°C junction temperature, compared to 150°C for the main part and other substitutes. This extended range is applicable only in applications requiring higher thermal performance. For standard operating conditions (-55°C to 150°C), all substitutes are functionally equivalent.

Q: Which substitute offers the best supply availability?

A: SMBJ7V0CA provides the highest inventory level at 27,018 pieces, followed by SMBJ7.0CA-TP at 6,100 pieces. Both are suitable for high-volume procurement requirements.

Q: Do all substitutes maintain the same electrical protection characteristics?

A: All substitutes operate within the same voltage suppression window (7V to 7.02V reverse standoff, 12V to 12.71V clamping) and support equivalent peak pulse current levels (50A to 52A). Electrical protection performance is maintained across all options for general-purpose transient suppression applications.