P6SMBJ480C Equivalent & Substitute Parts

Part Overview

The P6SMBJ480C is a Transient Voltage Suppressor (TVS) diode manufactured by Littelfuse, designed for general-purpose transient voltage protection in surface-mount applications. This component features a 408V reverse standoff voltage with a 690.9V maximum clamping voltage and 900mA peak pulse current capability in a DO-214AA (SMB) package.

The P6SMBJ480C is classified as obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for systems utilizing this TVS diode specification.

Substiute Parts

P6SMBJ480C

LittelfuseIn Stock: 842P6SMBJ480C Datasheet

Current PartRFQ

P6SMB480CA

Eaton - Electronics DivisionIn Stock: 12452P6SMB480CA Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the P6SMBJ480C is determined by strict equivalence across the following critical parameters:

• Voltage - Reverse Standoff (Typ): 408V
• Voltage - Clamping (Max) @ Ipp: Must not exceed 690.9V to ensure protection threshold compatibility
• Current - Peak Pulse (10/1000µs): 900mA minimum
• Power - Peak Pulse: 600W minimum
• Operating Temperature Range: -55°C to 150°C (TJ)
• Package / Case: DO-214AA, SMB surface mount
• Type: Zener diode, bidirectional, single channel

The P6SMB480CA, manufactured by Eaton - Electronics Division, meets these substitution criteria. This part maintains identical reverse standoff voltage (408V), peak pulse current (900mA), and power dissipation (600W) specifications. The clamping voltage of 658V is lower than the original 690.9V, providing enhanced protection margins. Both parts operate across the same temperature range and utilize compatible SMB surface-mount packaging.

Parameter Comparison

Engineering Selection Recommendations

The P6SMB480CA is the qualified substitute for the obsolete P6SMBJ480C. Selection is based on the following engineering factors:

Product Status: The P6SMBJ480C is obsolete, making the active-status P6SMB480CA the appropriate replacement to ensure continued supply chain access and manufacturing support.

Compliance & Certifications: Both parts maintain RoHS compliance. The P6SMBJ480C carries RoHS3 Compliant status, while the P6SMB480CA is RoHS Compliant. Both are classified under ECCN EAR99 and HTSUS 8541.10.0080, ensuring regulatory alignment.

Electrical Equivalence: The P6SMB480CA maintains identical reverse standoff voltage (408V), peak pulse current (900mA), and power dissipation (600W) specifications. The lower clamping voltage (658V vs. 690.9V) provides tighter voltage regulation and enhanced transient suppression performance.

Packaging & Mounting: Both parts utilize DO-214AA (SMB) surface-mount packaging with identical mechanical and thermal characteristics, enabling direct board-level substitution without layout modifications.

Availability: The P6SMB480CA is available in high volume (12,400 pcs in stock) with active product status, ensuring reliable long-term supply compared to the obsolete P6SMBJ480C.

Frequently Asked Questions (FAQ)

Q: Can the P6SMB480CA be used as a direct replacement for the P6SMBJ480C?

A: Yes. Both parts share identical reverse standoff voltage (408V), peak pulse current (900mA), power dissipation (600W), operating temperature range (-55°C to 150°C), and SMB surface-mount packaging. The P6SMB480CA is the manufacturer-recommended substitute.

Q: What is the difference in clamping voltage between these parts?

A: The P6SMBJ480C has a maximum clamping voltage of 690.9V, while the P6SMB480CA clamps at 658V. The lower clamping voltage of the substitute provides tighter voltage regulation and improved transient suppression performance within the same protection envelope.

Q: Are there any package or mounting differences?

A: No. Both the P6SMBJ480C and P6SMB480CA use the DO-214AA (SMB) surface-mount package. They are mechanically and thermally compatible, requiring no PCB layout modifications for substitution.

Q: What compliance certifications apply to the P6SMB480CA?

A: The P6SMB480CA is RoHS Compliant, classified under ECCN EAR99, and assigned HTSUS code 8541.10.0080. These certifications align with the original P6SMBJ480C specifications.

Q: Why is the P6SMBJ480C obsolete?

A: The P6SMBJ480C has reached end-of-life status. The P6SMB480CA represents the active equivalent from Eaton - Electronics Division, ensuring continued availability and manufacturing support.

Q: What is the moisture sensitivity level for the substitute part?

A: The P6SMB480CA carries MSL 1 (Unlimited) rating, indicating no moisture sensitivity restrictions during storage or handling.