P6SMB530 Equivalent & Substitute Parts

Part Overview

The P6SMB530 is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Littelfuse Inc., designed for general-purpose transient voltage protection in surface-mount applications. This component operates with a reverse standoff voltage of 451V and provides peak pulse power dissipation of 600W. The part is currently classified as obsolete, making identification of suitable substitute components essential for ongoing design support and production continuity. The P6SMB530A serves as the direct active-production equivalent, offering compatible electrical and mechanical characteristics within the P6SMB series.

Substiute Parts

P6SMB530

Littelfuse Inc.In Stock: 1125P6SMB530 Datasheet

Current PartRFQ

P6SMB530A

Littelfuse Inc.In Stock: 7856P6SMB530A Datasheet

DirectRFQ

P6SMB530A

Littelfuse Inc.In Stock: 7856P6SMB530A Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the P6SMB530 is based on strict equivalence across the following critical parameters:

• Reverse standoff voltage: 451V (identical across all variants)
• Peak pulse current rating: 800mA (identical across all variants)
• Peak pulse power dissipation: 600W (identical across all variants)
• Operating temperature range: -55°C to 150°C (identical across all variants)
• Package and mounting type: DO-214AA SMB surface mount (identical across all variants)
• Unidirectional topology: Single channel (identical across all variants)

The P6SMB530A is classified as a direct manufacturer equivalent. While the breakdown voltage minimum and clamping voltage specifications differ slightly from the main part (P6SMB530 breakdown min: 477V vs. P6SMB530A breakdown min: 504.6V; P6SMB530 clamping max: 761.25V vs. P6SMB530A clamping max: 725V), both components maintain the same reverse standoff voltage and current/power ratings. The P6SMB530A is the active-production successor within the P6SMB series.

Parameter Comparison

Engineering Selection Recommendations

The P6SMB530A is the recommended substitute for the obsolete P6SMB530. Both components are manufactured by Littelfuse Inc. and maintain identical reverse standoff voltage, peak pulse current, and peak pulse power ratings. Both achieve ROHS3 compliance and carry MSL Level 1 (unlimited moisture sensitivity), ensuring compatibility with standard surface-mount assembly processes.

The P6SMB530A holds active product status, ensuring ongoing availability and manufacturer support. The slight variation in breakdown voltage minimum (504.6V vs. 477V) and clamping voltage maximum (725V vs. 761.25V) reflects normal manufacturing tolerance ranges within the P6SMB series and does not affect functional equivalence for general-purpose transient voltage suppression applications.

Frequently Asked Questions (FAQ)

Q: Can the P6SMB530A directly replace the P6SMB530 in existing designs?

A: Yes. Both components share identical reverse standoff voltage (451V), peak pulse current (800mA), peak pulse power (600W), operating temperature range (-55°C to 150°C), and DO-214AA SMB surface-mount package. The P6SMB530A is the active-production equivalent within the P6SMB series.

Q: What is the significance of the different breakdown voltage and clamping voltage specifications?

A: The P6SMB530A exhibits a higher minimum breakdown voltage (504.6V vs. 477V) and lower maximum clamping voltage (725V vs. 761.25V). These variations fall within normal manufacturing tolerances for the P6SMB series and do not affect substitution eligibility for general-purpose applications.

Q: Are there packaging differences between the P6SMB530 and P6SMB530A?

A: Both components use the DO-214AA (SMBJ) surface-mount package. The P6SMB530A is supplied in Tape & Reel (TR) format, which is standard for active production components and compatible with automated assembly equipment.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the P6SMB530 and P6SMB530A are ROHS3 compliant, carry MSL Level 1 (unlimited), and share identical ECCN (EAR99) and HTSUS (8541.10.0080) classifications.

Q: Why is the P6SMB530 classified as obsolete?

A: The P6SMB530 has been superseded by the P6SMB530A within Littelfuse's active product portfolio. The P6SMB530A provides equivalent electrical performance with the advantage of ongoing manufacturer support and production availability.