P6SMB480 Equivalent & Substitute Parts

Part Overview

The P6SMB480 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 features a 408V reverse standoff voltage, 690.9V maximum clamping voltage, and 600W peak pulse power rating in a DO-214AA (SMB) package.

The P6SMB480 is classified as obsolete. Equivalent and substitute parts are available from active product lines that maintain electrical and mechanical compatibility within the specified parameter tolerances for this TVS diode category.

Substiute Parts

P6SMB480

Littelfuse Inc.In Stock: 912P6SMB480 Datasheet

Current PartRFQ

P6SMB480A

Eaton - Electronics DivisionIn Stock: 25367P6SMB480A Datasheet

MFR RecommendedRFQ

P6SMB480AHE3_AIH

Vishay General Semiconductor - Diodes DivisionIn Stock: 647P6SMB480AHE3_AIH Datasheet

DirectRFQ

P6SMB480A

Eaton - Electronics DivisionIn Stock: 25367P6SMB480A Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the P6SMB480 is determined by strict equivalence in the following electrical and mechanical parameters:

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

Two substitute parts meet these criteria and are available from active product lines:

1. P6SMB480A (Eaton - Electronics Division) — MFR Recommended substitute with active product status
2. P6SMB480AHE3_AIH (Vishay General Semiconductor - Diodes Division) — Direct manufacturer equivalent with automotive qualification

Parameter Comparison

Engineering Selection Recommendations

P6SMB480A (Eaton - Electronics Division) is designated as the MFR Recommended substitute. This part maintains identical electrical specifications to the original P6SMB480, with active product status and RoHS compliance. Packaging is supplied as Tape & Reel (TR), suitable for automated assembly processes. This option provides the highest inventory availability (25,355 pcs in stock).

P6SMB480AHE3_AIH (Vishay General Semiconductor - Diodes Division) is a direct manufacturer equivalent with extended lower operating temperature range (-65°C vs. -55°C) and automotive-grade qualification (AEC-Q101). The clamping voltage is lower (658V vs. 690.9V), providing enhanced transient suppression margin. This option is suitable for automotive and extended-temperature applications. ROHS3 compliance and REACH unaffected status are confirmed.

Both substitutes are electrically and mechanically compatible within the specified parameter tolerances for the P6SMB480 application category.

Frequently Asked Questions (FAQ)

Q: Can P6SMB480A be used as a direct replacement for P6SMB480?

A: Yes. P6SMB480A maintains identical reverse standoff voltage (408V), peak pulse current (900mA), and power rating (600W). The clamping voltage is lower (658V vs. 690.9V), which provides improved transient suppression performance. Both parts use the same DO-214AA (SMB) package.

Q: What is the difference between P6SMB480A and P6SMB480AHE3_AIH?

A: Both parts share the same electrical specifications (408V standoff, 658V clamping, 900mA+ peak pulse current, 600W power). P6SMB480AHE3_AIH offers extended lower temperature operation (-65°C vs. -55°C) and carries AEC-Q101 automotive qualification. P6SMB480A is available in higher volume (Tape & Reel packaging).

Q: Are the substitute parts available in the same package?

A: Yes. All three parts use the DO-214AA (SMB) surface-mount package, ensuring mechanical and footprint compatibility on PCB assemblies.

Q: What compliance certifications apply to the substitute parts?

A: P6SMB480A is RoHS Compliant with REACH Unaffected status. P6SMB480AHE3_AIH is ROHS3 Compliant with REACH Unaffected status and carries AEC-Q101 automotive qualification.

Q: Why is the clamping voltage lower on the substitute parts?

A: The substitute parts (P6SMB480A and P6SMB480AHE3_AIH) both specify 658V maximum clamping voltage compared to 690.9V on the original P6SMB480. This lower clamping voltage provides faster transient suppression and is within the allowed parameter range for this TVS diode category. Both substitutes maintain the 408V reverse standoff voltage specification.