CIC41P800NE Equivalent & Substitute Parts Reference

Part Overview

The CIC41P800NE is a power line ferrite bead manufactured by Samsung Electro-Mechanics, designed for electromagnetic interference suppression in 1806 (4516 Metric) surface mount applications. This component operates at 80 Ohms impedance at 100 MHz with a maximum current rating of 6A and 10mOhm DC resistance. The product is currently classified as obsolete, necessitating identification of active equivalent and substitute components to maintain design continuity and ensure supply chain availability for new production and field replacements.

Substiute Parts

CIC41P800NE

Samsung Electro-MechanicsIn Stock: 708CIC41P800NE Datasheet

Current PartRFQ

742792411

Würth ElektronikIn Stock: 4308742792411 Datasheet

SimilarRFQ

FBU451616T-720Y-S

Cal-Chip Electronics, Inc.In Stock: 11034FBU451616T-720Y-S Datasheet

Parametric EquivalentRFQ

FBU451616T-750Y-S

Cal-Chip Electronics, Inc.In Stock: 10905FBU451616T-750Y-S Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CIC41P800NE ferrite bead is determined by the following critical parameters that must align with the original design requirements:

Primary Substitution Criteria:

• Package / Case: 1806 (4516 Metric) surface mount form factor
• Number of Lines: Single line configuration
• Filter Type: Power Line application classification
• Current Rating (Max): Minimum 6A capability
• DC Resistance (DCR) (Max): Maximum 10mOhm
• Impedance @ Frequency: 80 Ohms nominal at 100 MHz (tolerance range acceptable)
• Operating Temperature Range: -55°C ~ 125°C minimum
• Mounting Type: Surface Mount
• RoHS Compliance: ROHS3 or equivalent

Substitute Categories:

Category 1 - Direct Functional Equivalent (Würth Elektronik 742792411): Identical impedance (80 Ohms @ 100 MHz), identical package, identical operating temperature range, and identical RoHS3 compliance. Differs in filter type classification (Signal Line vs. Power Line) and current rating (3A vs. 6A). DC resistance is higher at 40mOhm maximum.

Category 2 - Parametric Equivalents (Cal-Chip Electronics FBU Series): Both FBU451616T-720Y-S and FBU451616T-750Y-S maintain power line filter type classification, identical 6A current rating, and superior or equivalent DC resistance specifications. Impedance values deviate from 80 Ohms (72 Ohms and 75 Ohms respectively at 100 MHz). Both components are active products with RoHS compliance and identical package dimensions.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Identical Electrical Performance):

The Würth Elektronik 742792411 provides identical impedance specification (80 Ohms @ 100 MHz) and maintains the same operating temperature range and RoHS3 compliance as the obsolete CIC41P800NE. However, this component is classified as a Signal Line ferrite bead with a reduced current rating of 3A and elevated DC resistance of 40mOhm. Selection of this part is appropriate only when the application circuit operates at currents below 3A and can tolerate the increased DC resistance. The component is currently active with substantial inventory availability (4246 Pcs).

For Power Line Applications with Full Current Capacity:

The Cal-Chip Electronics FBU451616T-750Y-S is the preferred substitute for applications requiring the full 6A current rating in power line filtering. This component maintains the 6A current specification, achieves superior DC resistance performance at 8mOhm (lower than the original 10mOhm specification), and operates across the identical temperature range. The impedance specification of 75 Ohms @ 100 MHz represents a 6.25% deviation from the original 80 Ohms specification. This component is active with high inventory availability (10806 Pcs) and maintains RoHS compliance.

Alternative Power Line Option:

The Cal-Chip Electronics FBU451616T-720Y-S provides equivalent current capacity (6A) and DC resistance (10mOhm) to the original part, with impedance at 72 Ohms @ 100 MHz (10% deviation). This component is active with substantial inventory (11022 Pcs) and maintains RoHS compliance. Selection between the 720Y and 750Y variants depends on circuit impedance tolerance requirements.

Compliance and Supply Chain Considerations:

All substitute components maintain REACH Unaffected status and MSL Level 1 (Unlimited) moisture sensitivity classification, ensuring compatibility with standard manufacturing and storage protocols. The Cal-Chip FBU series components are available in Tape & Reel packaging, suitable for automated assembly processes. Product status verification confirms that both Cal-Chip variants are active components with no end-of-life notifications.

Frequently Asked Questions (FAQ)

Q: Can the Würth Elektronik 742792411 be used as a direct replacement for the CIC41P800NE in all applications?

A: The 742792411 provides identical impedance and package specifications but has critical limitations. The 3A current rating is insufficient for applications requiring the full 6A capacity of the original part. Additionally, the 40mOhm DC resistance is four times higher than the original 10mOhm specification, which may introduce unacceptable voltage drop in high-current circuits. This substitute is suitable only for signal line applications operating below 3A.

Q: What is the significance of the impedance deviation in the Cal-Chip FBU series substitutes?

A: The FBU451616T-720Y-S operates at 72 Ohms @ 100 MHz (10% below specification) and the FBU451616T-750Y-S operates at 75 Ohms @ 100 MHz (6.25% below specification), compared to the original 80 Ohms. These deviations affect the filtering effectiveness at the design frequency. Circuit analysis is required to determine whether the impedance tolerance is acceptable for the specific application. The 750Y variant provides closer impedance matching to the original specification.

Q: Are all substitute parts compatible with the same PCB footprint and assembly process?

A: Yes. All substitute components maintain identical package specifications (1806 / 4516 Metric), identical height (0.071" / 1.80mm maximum), and identical dimensions (0.177" L x 0.063" W / 4.50mm x 1.60mm). All are surface mount components suitable for standard reflow soldering processes. Tape & Reel packaging is available for all substitutes, enabling compatibility with automated pick-and-place assembly equipment.

Q: What are the key differences between power line and signal line ferrite beads?

A: Power line ferrite beads are designed for high-current applications and typically feature lower DC resistance and higher current ratings. Signal line ferrite beads are optimized for lower-current signal conditioning applications. The CIC41P800NE is classified as a power line component with 6A rating and 10mOhm DCR. The Würth 742792411 is classified as a signal line component with 3A rating and 40mOhm DCR. For power line applications, the Cal-Chip FBU series maintains the power line classification and full current capacity.

Q: How do the DC resistance specifications affect circuit performance?

A: DC resistance directly impacts voltage drop across the ferrite bead at operating current. The original CIC41P800NE specifies 10mOhm maximum DCR. At 6A, this produces a maximum voltage drop of 60mV. The Würth 742792411 at 40mOhm produces 240mV at 6A (exceeding its 3A rating). The Cal-Chip FBU451616T-750Y-S at 8mOhm produces 48mV at 6A, providing superior performance. The FBU451616T-720Y-S at 10mOhm matches the original specification exactly.

Q: What is the inventory status for each substitute component?

A: The Würth Elektronik 742792411 has 4246 Pcs available. The Cal-Chip FBU451616T-720Y-S has 11022 Pcs available. The Cal-Chip FBU451616T-750Y-S has 10806 Pcs available. All substitutes are currently in active production status with no supply constraints indicated.

Q: Do all components meet the same environmental and regulatory requirements?

A: All components maintain MSL Level 1 (Unlimited) moisture sensitivity classification and REACH Unaffected status. The original CIC41P800NE is ROHS3 Compliant. The Würth 742792411 is ROHS3 Compliant. The Cal-Chip FBU series components are RoHS Compliant. All components operate across the identical temperature range of -55°C ~ 125°C. Compliance documentation should be verified with manufacturers for specific regulatory requirements in target markets.