FB04YTYH301 Ferrite Bead 300 Ohm 1206 Equivalent & Substitute Parts

Part Overview

The FB04YTYH301 is a 1206 surface mount ferrite bead manufactured by Stackpole Electronics Inc. This component operates at 300 Ohms impedance at 100 MHz with a maximum current rating of 2A and 60mOhm DC resistance. Classified as a power line ferrite bead, it is designed for electromagnetic interference (EMI) suppression in power distribution circuits. The part maintains Active product status with full inventory availability. Equivalent and substitute parts are identified based on matching electrical characteristics, package dimensions, and operational parameters to ensure direct functional replacement in circuit applications.

Key Parameters

Parameter	Value
Manufacturer Part Number	FB04YTYH301
Manufacturer	Stackpole Electronics Inc
Impedance @ Frequency	300 Ohms @ 100 MHz
Current Rating (Max)	2A
DC Resistance (DCR) (Max)	60mOhm
Package / Case	1206 (3216 Metric)
Size / Dimension	0.126" L x 0.063" W (3.20mm x 1.60mm)
Height (Max)	0.051" (1.30mm)
Mounting Type	Surface Mount
Operating Temperature	-55°C ~ 125°C
Filter Type	Power Line
Number of Lines	1
Product Status	Active

Substitute Part Grouping Explanation

Substitute parts for the FB04YTYH301 are classified based on the following critical parameters that determine functional equivalence:

Primary Matching Criteria:

Impedance @ 100 MHz: 300 Ohms (exact match required)
Package / Case: 1206 (3216 Metric) (exact match required)
DC Resistance (DCR): 60mOhm (exact match required)
Operating Temperature Range: -55°C ~ 125°C (exact match required)
Mounting Type: Surface Mount (exact match required)
Number of Lines: 1 (exact match required)

Secondary Consideration:

Current Rating: Substitutes with equal or higher current ratings (2A or greater) are acceptable
Filter Type: Power line and signal line ferrite beads are functionally interchangeable in most applications due to identical impedance and frequency characteristics

Partial Match Category:

Part 74279221281 (Würth Elektronik WE-MPSB series) presents a near-equivalent with 280 Ohms impedance (7% deviation from 300 Ohms specification) and superior current rating (3.5A) with reduced DCR (35mOhm). This part is included as a functional alternative where impedance tolerance permits.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Impedance @ 100 MHz	Current Rating (Max)	DCR (Max)	Package	Filter Type	Inventory (Pcs)
FB04YTYH301	Stackpole Electronics Inc	300 Ohms	2A	60mOhm	1206 (3216 Metric)	Power Line	802
2512063017Y3	Fair-Rite Products Corp.	300 Ohms	3A	60mOhm	1206 (3216 Metric)	Signal Line	264578
742792121	Würth Elektronik	300 Ohms	3A	60mOhm	1206 (3216 Metric)	Signal Line	20677
74279221281	Würth Elektronik	280 Ohms	3.5A	35mOhm	1206 (3216 Metric)	Not Specified	27400
BBPY00321611301Y00	Pulse Electronics	300 Ohms	2A	60mOhm	1206 (3216 Metric)	Not Specified	1461
FBH321611T-301Y-S	Cal-Chip Electronics, Inc.	300 Ohms	3A	60mOhm	1206 (3216 Metric)	Power Line	30917
HCB20-301-RC	Allied Components International	300 Ohms	2A	60mOhm	1206 (3216 Metric)	Power Line	951

Engineering Selection Recommendations

Direct Equivalents (Identical Electrical and Mechanical Specifications):

BBPY00321611301Y00 (Pulse Electronics) and HCB20-301-RC (Allied Components International) are direct functional equivalents to FB04YTYH301, matching all critical parameters including impedance, current rating, DCR, and package dimensions. Both parts maintain Active product status and RoHS compliance. Selection between these options depends on inventory availability and supply chain requirements.

Enhanced Performance Substitutes (Higher Current Rating):

2512063017Y3 (Fair-Rite Products Corp.), 742792121 (Würth Elektronik), and FBH321611T-301Y-S (Cal-Chip Electronics, Inc.) provide identical impedance and DCR specifications with increased current ratings (3A). These parts are suitable for applications where the original 2A rating is marginal or where design margin improvement is desired. FBH321611T-301Y-S maintains power line classification matching the original part. All three parts are RoHS3 compliant with REACH unaffected status.

Near-Equivalent Alternative (Impedance Variance):

74279221281 (Würth Elektronik WE-MPSB series) operates at 280 Ohms impedance, representing a 7% deviation from the 300 Ohms specification. This part offers superior current handling (3.5A) and reduced DCR (35mOhm). Selection of this part requires circuit-level analysis to confirm impedance tolerance acceptance.

Compliance and Certification Status:

All substitute parts maintain Active product status. RoHS3 compliance is confirmed for Fair-Rite, Würth Elektronik, Pulse Electronics, and Cal-Chip parts. Allied Components International part carries RoHS compliance. REACH unaffected status is documented for all parts except HCB20-301-RC.

Frequently Asked Questions (FAQ)

Q: Can 2512063017Y3 directly replace FB04YTYH301 in a power line application?

A: Yes. Although 2512063017Y3 is classified as a signal line ferrite bead, it matches all critical electrical parameters (300 Ohms @ 100 MHz, 60mOhm DCR) and mechanical specifications (1206 package, surface mount). The higher current rating (3A vs 2A) provides additional design margin. Filter type classification does not prevent functional substitution when impedance and frequency characteristics are identical.

Q: What is the significance of the 280 Ohms impedance in part 74279221281?

A: The 280 Ohms impedance represents a 7% deviation from the 300 Ohms specification of FB04YTYH301. This part is included as a near-equivalent option for applications where impedance tolerance permits such variance. The superior current rating (3.5A) and reduced DCR (35mOhm) may justify selection in designs with adequate impedance margin.

Q: Are all substitute parts available in the same packaging format?

A: All substitute parts are packaged in 1206 (3216 Metric) surface mount format with identical dimensions (0.126" L x 0.063" W, 0.051" max height). Packaging compatibility is confirmed across all options. Tape & Reel (TR) and Cut Tape (CT) & Digi-Reel® formats are available depending on the specific part and supplier.

Q: Which substitute part offers the best inventory availability?

A: 2512063017Y3 (Fair-Rite Products Corp.) provides the highest inventory level at 264,578 pieces. FBH321611T-301Y-S (Cal-Chip Electronics, Inc.) offers 30,917 pieces. Both parts maintain robust stock levels suitable for high-volume production requirements.

Q: Do all substitute parts meet RoHS compliance requirements?

A: RoHS3 compliance is confirmed for 2512063017Y3, 742792121, 74279221281, BBPY00321611301Y00, and FBH321611T-301Y-S. HCB20-301-RC carries RoHS compliance status. All parts are suitable for applications requiring RoHS-compliant component selection.

Q: What is the operating temperature range for substitute parts?

A: All substitute parts operate across the identical temperature range of -55°C to 125°C, matching the FB04YTYH301 specification. No thermal performance variance exists between the main part and any substitute option.

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