Littelfuse 90065-015 Equivalent & Substitute Parts

Part Overview

The Littelfuse 90065-015 is a 430 V, 22.5 kA Varistor designed for transient voltage suppression in chassis mount applications with blade terminals. This component is classified as obsolete, making identification of suitable substitute parts essential for ongoing system maintenance and new design implementations. The part operates within a maximum AC voltage rating of 275 V and provides 300 J energy dissipation capacity in a single-circuit configuration.

Substiute Parts

90065-015

Littelfuse Inc.In Stock: 94990065-015 Datasheet

Current PartRFQ

V271DB40

Littelfuse Inc.In Stock: 837V271DB40 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 90065-015 is determined by the following critical electrical and mechanical parameters:

• Varistor Voltage Range: 387 V (Min) to 473 V (Max) — maintains voltage clamping consistency
• Mounting Type: Chassis Mount — ensures mechanical compatibility
• Package Configuration: Blade Type terminals — required for connection interface compatibility
• Number of Circuits: 1 — single-circuit topology requirement
• Series Classification: DB — product family alignment

The substitute part V271DB40 satisfies all substitution criteria while offering enhanced surge current capacity (40 kA versus 22.5 kA) and increased energy dissipation (400 J versus 300 J). Both parts maintain identical varistor voltage specifications and operate within the same voltage classification.

Parameter Comparison

Engineering Selection Recommendations

The V271DB40 is the manufacturer-recommended substitute for the obsolete 90065-015. Selection of this substitute is supported by the following engineering factors:

• Electrical Compatibility: Identical varistor voltage specifications (387 V to 473 V range) ensure equivalent voltage clamping performance in transient suppression circuits.
• Enhanced Performance Margin: Increased surge current capacity (40 kA) and energy dissipation (400 J) provide superior transient handling compared to the original part.
• Active Product Status: The V271DB40 maintains active production status, ensuring long-term availability and supply chain continuity.
• Regulatory Compliance: ROHS3 compliance of the substitute part aligns with current environmental and regulatory requirements, whereas the original part is non-compliant.
• Mechanical Compatibility: Both parts utilize chassis mount configuration with blade-type terminals, maintaining interface compatibility in existing designs.

Frequently Asked Questions (FAQ)

Q: Can the V271DB40 be used as a direct replacement for the 90065-015?

A: Yes. Both parts share identical varistor voltage specifications (430 V typical), maximum AC voltage rating (275 V), and single-circuit chassis mount configuration. The substitute offers enhanced surge current and energy dissipation capabilities.

Q: What are the key differences between these parts?

A: The V271DB40 provides 40 kA surge current capacity compared to 22.5 kA in the original part, and 400 J energy dissipation versus 300 J. The substitute is ROHS3 compliant and maintains active production status.

Q: Are there any mechanical compatibility concerns?

A: Both parts use blade-type terminals and chassis mount configuration. The V271DB40 is specified as "Blade Type, Encased" while the original is "Chassis Mount, Blade Terminals." This encased design provides additional mechanical protection without affecting terminal compatibility.

Q: Does the operating temperature specification affect substitution?

A: The V271DB40 specifies an operating temperature range of -55°C to 85°C. The original part does not provide temperature specifications. The substitute's defined temperature range ensures predictable performance across standard industrial operating conditions.

Q: Is RoHS compliance a factor in selecting the substitute?

A: Yes. The V271DB40 is ROHS3 compliant, meeting current environmental regulations. The original 90065-015 is non-compliant. For new designs and systems subject to RoHS requirements, the substitute is the appropriate selection.