NF10AA0100M-- Equivalent & Substitute Parts

Part Overview

The NF10AA0100M-- is an Inrush Current Limiter manufactured by KYOCERA AVX, rated at 10 Ohms ±20% with a maximum steady-state current of 2.8 A and a physical diameter of 0.453" (11.50mm). This component is classified as obsolete, indicating discontinuation from the manufacturer. Identifying equivalent substitute parts is necessary to maintain design continuity and ensure component availability for new production runs, repairs, and system upgrades.

Substiute Parts

NF10AA0100M--

KYOCERA AVXIn Stock: 1274NF10AA0100M-- Datasheet

Current PartRFQ

B57237S0100M000

EPCOS - TDK ElectronicsIn Stock: 2316B57237S0100M000 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the NF10AA0100M-- is determined by the following critical parameters:

• Resistance Value: 10 Ohms ±20% tolerance
• Steady-State Current Rating: Minimum 2.8 A
• Physical Dimensions: Compatible diameter and lead spacing for PCB mounting
• Electrical Characteristics: Inrush Current Limiter functionality
• Environmental Compliance: RoHS and REACH status for regulatory requirements

The substitute part B57237S0100M000 meets these criteria with equivalent resistance and tolerance specifications, while providing enhanced current capacity (3.7 A) and improved compliance status.

Parameter Comparison

Engineering Selection Recommendations

The B57237S0100M000 serves as the primary substitute for the obsolete NF10AA0100M--. Selection is justified on the following basis:

Electrical Equivalence: Both components maintain identical resistance values (10 Ohms) and tolerance specifications (±20%), ensuring functional compatibility in inrush current limiting applications.

Current Capacity: The substitute provides 3.7 A steady-state current rating, exceeding the original 2.8 A specification. This enhanced capacity provides operational margin without compromising circuit performance.

Compliance Status: The B57237S0100M000 is ROHS3 compliant and carries UL approval, addressing modern regulatory requirements. The original part's RoHS non-compliant status may restrict use in new designs subject to environmental regulations.

Product Availability: The substitute is classified as Active, ensuring continued manufacturing and supply chain availability, whereas the original is Obsolete.

Physical Compatibility: Lead spacing remains compatible (0.300" vs. 0.295"), permitting direct PCB mounting. The increased diameter (0.591" vs. 0.453") requires verification of available board space in existing layouts.

Frequently Asked Questions (FAQ)

Q: Can B57237S0100M000 be used as a direct replacement for NF10AA0100M--?

A: Yes, provided PCB layout accommodates the larger 0.591" (15.00mm) diameter. Electrical parameters are equivalent, and lead spacing is compatible.

Q: What is the significance of the higher 3.7 A rating on the substitute?

A: The increased current capacity provides operational margin. If the original design operates at or near 2.8 A, the substitute's 3.7 A rating ensures reliable performance without thermal stress.

Q: Does the RoHS3 compliance of B57237S0100M000 affect circuit performance?

A: No. RoHS3 compliance indicates material composition restrictions for environmental protection. Electrical and thermal characteristics remain unchanged.

Q: Are there any mechanical considerations when switching to B57237S0100M000?

A: Yes. The substitute's larger diameter (15.00mm vs. 11.50mm) requires verification that PCB layout and component placement allow the increased physical size. Lead spacing is compatible.

Q: What is the impact of UL approval on the substitute part?

A: UL approval indicates third-party safety certification, providing additional assurance for applications requiring regulatory compliance or safety-critical functions.

Q: Can the NF10AA0100M-- be sourced from alternative suppliers?

A: The part is classified as Obsolete. While inventory may exist through authorized distributors, long-term availability is not assured. Transition to the active substitute is recommended for production continuity.