Equivalent & Substitute Parts for NFM21PC105F1C3D

Part Overview

The NFM21PC105F1C3D is a 1 µF feed-through capacitor rated at 16V with a 2 A current rating, manufactured by Murata Electronics in the EMIFIL® NFM21 series. This component is packaged in 0805 (2012 Metric) surface mount format with 3 PC pad configuration. The part is currently obsolete, necessitating identification of functionally equivalent alternatives for ongoing design support and procurement.

Substiute Parts

NFM21PC105F1C3D

Murata ElectronicsIn Stock: 2754NFM21PC105F1C3D Datasheet

Current PartRFQ

NFM21PC105B1C3D

Murata ElectronicsIn Stock: 205433NFM21PC105B1C3D Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the NFM21PC105F1C3D is determined by the following critical parameters:

• Capacitance Value: 1 µF (exact match required)
• Voltage Rating: 16V minimum (equal or higher acceptable)
• Package Configuration: 0805 (2012 Metric), 3 PC Pad (physical and electrical compatibility)
• Mounting Type: Surface Mount (assembly process compatibility)
• Operating Temperature Range: -40°C ~ 85°C (environmental specification match)
• Series Compatibility: EMIFIL® NFM21 series (electrical characteristics and performance envelope)
• Compliance Standards: ROHS3, REACH Unaffected (regulatory requirement match)

The NFM21PC105B1C3D qualifies as a direct substitute based on identical capacitance, voltage rating, package type, mounting configuration, temperature range, and compliance certifications. Enhanced specifications (higher current rating and lower DCR) provide improved performance margins without compromising compatibility.

Parameter Comparison

Engineering Selection Recommendations

The NFM21PC105B1C3D is the manufacturer-recommended substitute for the obsolete NFM21PC105F1C3D. Both components maintain identical electrical specifications for capacitance (1 µF), voltage rating (16V), package configuration (0805 with 3 PC pad), and operating temperature range (-40°C ~ 85°C). Both components satisfy ROHS3 compliance and REACH unaffected status requirements.

The substitute part offers enhanced performance characteristics: current rating increased from 2 A to 4 A, tighter tolerance specification (±20% versus -20%, +80%), and specified DC resistance of 20 mOhm maximum. These improvements provide superior electrical performance while maintaining full compatibility with existing PCB layouts and assembly processes.

The active product status of NFM21PC105B1C3D ensures ongoing availability and supply chain continuity, eliminating procurement risk associated with the obsolete main part number.

Frequently Asked Questions (FAQ)

Q: Can NFM21PC105B1C3D be used as a direct replacement for NFM21PC105F1C3D in existing designs?

A: Yes. Both parts share identical capacitance (1 µF), voltage rating (16V), package type (0805 with 3 PC pad), physical dimensions, and operating temperature range (-40°C ~ 85°C). PCB layout and assembly processes require no modification.

Q: What are the key differences between these two parts?

A: The substitute part provides enhanced specifications: current rating of 4 A (versus 2 A), tighter capacitance tolerance of ±20% (versus -20%, +80%), and specified maximum DC resistance of 20 mOhm. The substitute maintains active product status while the original is obsolete.

Q: Are there any compliance or certification differences?

A: No. Both parts are ROHS3 compliant, REACH unaffected, and carry identical moisture sensitivity level (MSL 1 - Unlimited). Regulatory and environmental compliance requirements are fully satisfied by either part.

Q: Does the improved current rating of the substitute part affect circuit behavior?

A: No. The higher current rating (4 A) of NFM21PC105B1C3D represents an enhanced performance margin. The part will operate identically to the original in circuits designed for 2 A operation, with reduced thermal stress and improved reliability margins.

Q: Are packaging and mounting considerations identical?

A: Yes. Both parts use 0805 (2012 Metric) surface mount package with 3 PC pad configuration. Physical dimensions (0.079" L x 0.049" W, 0.037" maximum height) are identical, ensuring compatibility with existing pick-and-place equipment and reflow profiles.