NF08AA0330M-- Inrush Current Limiter Equivalent & Substitute Parts

Part Overview

The NF08AA0330M-- is a 33 Ohm inrush current limiter manufactured by KYOCERA AVX with a steady-state current rating of 1.3 A and 8.00mm diameter. This component is classified as obsolete, making identification of suitable substitute parts essential for ongoing system support and new design implementations. The NF08 series is no longer in active production, necessitating evaluation of functionally equivalent alternatives that maintain electrical and mechanical compatibility.

Substiute Parts

NF08AA0330M--

KYOCERA AVXIn Stock: 1114NF08AA0330M-- Datasheet

Current PartRFQ

B57153S0330M000

EPCOS - TDK ElectronicsIn Stock: 5248B57153S0330M000 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the NF08AA0330M-- is determined by the following critical electrical and mechanical parameters:

• Resistance value: 33 Ohms
• Tolerance: ±20%
• Steady-state current rating: 1.3 A minimum
• Physical diameter: Compatible with 8.00mm form factor
• Lead spacing: Accommodation of axial lead configuration
• Environmental compliance: RoHS and REACH status alignment

The B57153S0330M000 from EPCOS - TDK Electronics meets these substitution criteria. Both components share identical electrical specifications (33 Ohms ±20%, 1.3 A rating) and operate within compatible physical envelopes. The substitute maintains the same functional performance as an inrush current limiter within the specified parameter range.

Parameter Comparison

Engineering Selection Recommendations

The B57153S0330M000 serves as the primary substitute for the obsolete NF08AA0330M--. Selection is based on the following factors:

• Electrical equivalence: Both components provide 33 Ohms ±20% resistance with 1.3 A steady-state current capacity, ensuring functional parity in inrush current limiting applications.
• Active product status: The B57153S0330M000 is in active production, providing long-term availability and supply chain stability compared to the obsolete NF08AA0330M--.
• Regulatory compliance: The substitute achieves ROHS3 compliance and carries UL approval, addressing modern environmental and safety standards that the original component does not meet.
• Physical accommodation: The 8.50mm diameter and 5.00mm lead spacing of the substitute differ from the original specifications. PCB layout and mechanical mounting must be evaluated for compatibility with existing designs.

Frequently Asked Questions (FAQ)

Q: Can the B57153S0330M000 be used as a direct replacement for the NF08AA0330M--?

A: Electrical substitution is valid based on identical resistance, tolerance, and current ratings. However, the different lead spacing (5.00mm vs. 7.62mm) and slightly larger diameter (8.50mm vs. 8.00mm) require PCB layout verification before implementation.

Q: What are the key parameters that define substitution eligibility?

A: Substitution is determined by resistance value (33 Ohms), tolerance (±20%), and steady-state current rating (1.3 A). These parameters must match or exceed the original specification. Physical dimensions must accommodate the application's mechanical constraints.

Q: Why is the NF08AA0330M-- listed as obsolete?

A: The NF08 series is no longer manufactured by KYOCERA AVX. The B57153S0330M000 from EPCOS - TDK Electronics represents the active equivalent in the market.

Q: Does the substitute meet current regulatory requirements?

A: Yes. The B57153S0330M000 is ROHS3 compliant and carries UL approval, meeting modern environmental and safety standards. The original NF08AA0330M-- is RoHS non-compliant.

Q: Are there any lead spacing considerations for PCB design?

A: Yes. The substitute has a 5.00mm lead spacing compared to the original 7.62mm spacing. PCB footprints must be adjusted accordingly. The slightly larger diameter (8.50mm vs. 8.00mm) should also be verified for mechanical clearance in the application.