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FB03YTYH301 Ferrite Bead 300 Ohm 0603 Equivalent & Substitute Parts
Part Overview
The FB03YTYH301 is a 300 Ohm ferrite bead manufactured by Stackpole Electronics Inc, designed for power line filtering applications in 0603 (1608 Metric) surface mount packages. This single-line ferrite bead operates at 300 Ohms impedance at 100 MHz with a maximum current rating of 1.5A and DC resistance of 120 mOhm. The part is active in production status and operates across the temperature range of -55°C to 125°C.
Equivalent and substitute parts are necessary when the primary part becomes unavailable, when alternative manufacturers offer improved performance characteristics, or when design requirements necessitate different electrical or mechanical specifications within the same functional category.
Substiute Parts
Key Parameters
| Parameter | Value | Unit |
|---|---|---|
| Impedance @ Frequency | 300 Ohms @ 100 MHz | Ohms |
| Current Rating (Max) | 1.5 | A |
| DC Resistance (DCR) (Max) | 120 | mOhm |
| Package / Case | 0603 (1608 Metric) | — |
| Mounting Type | Surface Mount | — |
| Operating Temperature | -55°C ~ 125°C | °C |
| Number of Lines | 1 | — |
| Filter Type | Power Line | — |
Substitute Part Grouping Explanation
Substitution of ferrite beads is determined by strict equivalence across the following critical parameters:
Primary Equivalence Criteria:
- Impedance value and frequency specification (300 Ohms @ 100 MHz)
- Package and case size (0603 / 1608 Metric)
- Number of lines (1 line configuration)
- Operating temperature range (-55°C ~ 125°C)
- Mounting type (Surface Mount)
Secondary Compatibility Parameters:
- Current rating (equal to or greater than 1.5A)
- DC resistance (equal to or less than 120 mOhm)
- Physical dimensions and height
Parts are grouped into two categories:
Category A - Direct Electrical Equivalents: Parts matching 300 Ohms @ 100 MHz impedance with identical or superior current and DCR specifications.
Category B - Functional Alternatives: Parts with 330 Ohms @ 100 MHz impedance, which represent a 10% impedance increase and are suitable only when circuit design permits impedance tolerance variation.
Parameter Comparison
| Manufacturer Part Number | Manufacturer | Impedance @ 100 MHz | Current Rating (Max) | DCR (Max) | Height (Max) | Product Status |
|---|---|---|---|---|---|---|
| FB03YTYH301 | Stackpole Electronics Inc | 300 Ohms | 1.5A | 120 mOhm | 0.037" (0.95mm) | Active |
| BBHV00160808301Y00 | Pulse Electronics | 300 Ohms | 2A | 80 mOhm | 0.037" (0.95mm) | Active |
| BBPY00160808301Y00 | Pulse Electronics | 300 Ohms | 1.5A | 120 mOhm | 0.037" (0.95mm) | Active |
| CZP1JFTTD301P | KOA Speer Electronics, Inc. | 300 Ohms | 2A | 100 mOhm | 0.037" (0.95mm) | Active |
| FBH160808T-301Y-S | Cal-Chip Electronics, Inc. | 300 Ohms | 2A | 100 mOhm | 0.037" (0.95mm) | Active |
| HCB05-301-RC | Allied Components International | 300 Ohms | 1.5A | 120 mOhm | 0.039" (1.00mm) | Active |
| BBHV00160808331Y00 | Pulse Electronics | 330 Ohms | 2A | 80 mOhm | 0.037" (0.95mm) | Active |
| BBPY00160808331Y00 | Pulse Electronics | 330 Ohms | 1.5A | 120 mOhm | 0.037" (0.95mm) | Active |
| BBUP00160805331Y00 | Pulse Electronics | 330 Ohms | 1.5A | 70 mOhm | 0.026" (0.65mm) | Active |
| BLM18KG331SN1D | Murata Electronics | 330 Ohms | 1.7A | 80 mOhm | 0.037" (0.95mm) | Active |
| BLM18SG331TN1D | Murata Electronics | 330 Ohms | 1.5A | 70 mOhm | 0.026" (0.65mm) | Active |
Engineering Selection Recommendations
Direct Electrical Equivalents (300 Ohms @ 100 MHz):
BBPY00160808301Y00 (Pulse Electronics) provides identical electrical specifications to the FB03YTYH301 with ROHS3 compliance and unlimited moisture sensitivity level. This part is recommended as the primary substitute when Stackpole availability is constrained.
BBHV00160808301Y00 (Pulse Electronics) offers superior current handling (2A versus 1.5A) and reduced DC resistance (80 mOhm versus 120 mOhm) while maintaining 300 Ohms impedance. This part is suitable for applications requiring enhanced thermal performance or higher current margins.
CZP1JFTTD301P (KOA Speer Electronics) and FBH160808T-301Y-S (Cal-Chip Electronics) both provide 2A current rating with 100 mOhm DCR. Both parts are active in production and RoHS compliant. FBH160808T-301Y-S carries power line filter type designation matching the original part.
HCB05-301-RC (Allied Components International) matches the FB03YTYH301 specification exactly with 1.5A current and 120 mOhm DCR. Height specification is 0.039" (1.00mm), which is 0.04mm greater than the original. This part is suitable for applications with relaxed height constraints.
Functional Alternatives (330 Ohms @ 100 MHz):
Parts with 330 Ohms impedance represent a 10% increase from the 300 Ohms specification. These parts are suitable only when circuit design permits impedance tolerance variation or when the application benefits from higher impedance filtering.
BBPY00160808331Y00 (Pulse Electronics) matches current and DCR specifications of the original part with 330 Ohms impedance.
BBUP00160805331Y00 (Pulse Electronics) provides reduced height (0.026" / 0.65mm) and improved DCR (70 mOhm) at 330 Ohms impedance.
BLM18SG331TN1D (Murata Electronics EMIFIL® series) offers reduced height (0.026" / 0.65mm) and improved DCR (70 mOhm) with power line filter designation at 330 Ohms impedance.
BLM18KG331SN1D (Murata Electronics EMIFIL® series) provides 1.7A current rating with 80 mOhm DCR at 330 Ohms impedance and standard height (0.037" / 0.95mm).
All substitute parts listed are active in production status with ROHS3 compliance and unlimited moisture sensitivity level (MSL 1).
Frequently Asked Questions (FAQ)
Q: Can BBHV00160808301Y00 be used as a direct replacement for FB03YTYH301?
A: Yes. BBHV00160808301Y00 is a direct electrical equivalent with identical impedance (300 Ohms @ 100 MHz), package (0603), and operating temperature range. The part provides superior current handling (2A versus 1.5A) and lower DC resistance (80 mOhm versus 120 mOhm), making it suitable for direct substitution in all applications where FB03YTYH301 is specified.
Q: What is the difference between 300 Ohm and 330 Ohm ferrite beads?
A: The impedance difference represents a 10% increase in filtering capability. 330 Ohm beads provide greater attenuation at the specified frequency but may alter circuit performance if the original design was optimized for 300 Ohms. Substitution with 330 Ohm parts is permissible only when circuit analysis confirms impedance tolerance acceptance.
Q: Are all listed substitute parts RoHS compliant?
A: All substitute parts listed are RoHS compliant. BBHV00160808301Y00, BBPY00160808301Y00, BBUP00160805331Y00, and CZP1JFTTD301P carry ROHS3 designation. FBH160808T-301Y-S and HCB05-301-RC carry RoHS Compliant designation. All parts have unlimited moisture sensitivity level (MSL 1).
Q: What is the significance of DC resistance (DCR) in ferrite bead selection?
A: DC resistance represents the resistive loss through the ferrite bead at direct current. Lower DCR values reduce power dissipation and heat generation. The FB03YTYH301 specifies 120 mOhm maximum DCR. Substitute parts with equal or lower DCR values (such as BBHV00160808301Y00 at 80 mOhm) provide improved thermal performance without compromising filtering characteristics.
Q: Can HCB05-301-RC be used if PCB height clearance is limited?
A: HCB05-301-RC has a maximum height of 0.039" (1.00mm), which is 0.04mm greater than the FB03YTYH301 specification of 0.037" (0.95mm). If PCB clearance is constrained to 0.95mm or less, HCB05-301-RC is not suitable. For reduced height applications, BBUP00160805331Y00 or BLM18SG331TN1D at 0.026" (0.65mm) are available alternatives.
Q: What is the difference between power line filter designation and general ferrite beads?
A: Power line filter ferrite beads are specifically designed and tested for power supply line filtering applications. FB03YTYH301, FBH160808T-301Y-S, BLM18KG331SN1D, and BLM18SG331TN1D carry explicit power line filter designation. Other substitute parts do not specify this designation but maintain equivalent electrical performance in 0603 package configuration.
Q: Are there inventory considerations when selecting substitute parts?
A: Inventory levels vary significantly among manufacturers. BBPY00160808331Y00 has 187,914 pieces in stock, while HCB05-301-RC has only 948 pieces. For applications requiring large quantities or long-term availability, parts with higher inventory levels provide supply chain stability.
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