AFBC-Q0603-301-T Equivalent & Substitute Parts

Part Overview

The AFBC-Q0603-301-T is a ferrite bead manufactured by Abracon LLC, designed for electromagnetic interference (EMI) suppression in surface mount applications. This 0603 (1608 Metric) package component operates at 300 Ohms impedance at 100 MHz with a maximum current rating of 1A and is qualified to AEC-Q200 automotive standards. The part is active in production and widely available in inventory. Equivalent and substitute parts are identified to support component sourcing flexibility, supply chain continuity, and design optimization across compatible electrical and mechanical specifications.

Substiute Parts

AFBC-Q0603-301-T

Abracon LLCIn Stock: 5114AFBC-Q0603-301-T Datasheet

Current PartRFQ

BLM18KG331WH1D

Murata ElectronicsIn Stock: 6162BLM18KG331WH1D Datasheet

Parametric EquivalentRFQ

MFBA2V1608-301-R

Eaton - Electronics DivisionIn Stock: 17362MFBA2V1608-301-R Datasheet

Parametric EquivalentRFQ

MFBA2V1608P-301-R

Eaton - Electronics DivisionIn Stock: 2356MFBA2V1608P-301-R Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the AFBC-Q0603-301-T are qualified based on the following criteria:

Primary Substitution Criteria:

• Identical impedance at 100 MHz (300 Ohms)
• Identical or higher current rating (≥1A)
• Identical or lower DC resistance (≤200 mOhm)
• Identical package / case (0603 / 1608 Metric)
• Identical operating temperature range (-55°C to 150°C)
• Surface mount mounting type
• Single line configuration
• AEC-Q200 qualification
• RoHS3 compliance

Substitute Categories:

Full Electrical & Mechanical Equivalents: Parts meeting all primary criteria with identical electrical performance and package dimensions.

Parametric Equivalents with Enhanced Performance: Parts exceeding minimum specifications in current rating or DC resistance while maintaining identical impedance and package compatibility.

Application-Specific Variants: Parts with identical core electrical specifications but designated for specific filter applications (signal line, power line) within the same package footprint.

Parameter Comparison

Engineering Selection Recommendations

Direct Substitutes (Identical Electrical Performance):

MFBA2V1608-301-R and MFBA2V1608P-301-R from Eaton - Electronics Division are direct electrical equivalents to the AFBC-Q0603-301-T. Both parts maintain identical impedance (300 Ohms @ 100 MHz), current rating (1A), and DC resistance (200 mOhm) specifications. Both are AEC-Q200 qualified and RoHS3 compliant. The primary difference is package height (0.95 mm versus 0.80 mm for the Abracon part), which remains within standard 0603 package tolerances. MFBA2V1608-301-R is designated for signal line applications, while MFBA2V1608P-301-R carries no specific filter type designation. Both are suitable for direct board-level substitution.

Enhanced Performance Substitute:

BLM18KG331WH1D from Murata Electronics provides enhanced electrical performance with higher impedance (330 Ohms @ 100 MHz), increased current rating (1.25A), and reduced DC resistance (110 mOhm). This part is designated for power line filtering applications. While impedance differs by 30 Ohms, this part qualifies as a parametric equivalent within ferrite bead substitution standards. The enhanced current rating and lower DC resistance provide margin for higher-power applications. AEC-Q200 qualification and RoHS3 compliance are maintained. Selection of this part requires confirmation that the 330 Ohm impedance is acceptable for the target application.

Compliance & Availability:

All substitute parts maintain AEC-Q200 automotive qualification, RoHS3 compliance, and MSL 1 (Unlimited) moisture sensitivity rating. All parts are active in production with confirmed inventory availability.

Frequently Asked Questions (FAQ)

Q: Can MFBA2V1608-301-R be used as a direct replacement for AFBC-Q0603-301-T?

A: Yes. MFBA2V1608-301-R is a direct electrical equivalent with identical impedance (300 Ohms @ 100 MHz), current rating (1A), and DC resistance (200 mOhm). The package height difference (0.95 mm versus 0.80 mm) is within standard 0603 package tolerances and does not affect PCB assembly compatibility.

Q: What is the difference between MFBA2V1608-301-R and MFBA2V1608P-301-R?

A: Both parts are electrically identical with 300 Ohms impedance, 1A current rating, and 200 mOhm DC resistance. MFBA2V1608-301-R is designated as a signal line ferrite bead, while MFBA2V1608P-301-R carries no specific filter type designation. Both are suitable for general EMI suppression applications.

Q: Can BLM18KG331WH1D replace AFBC-Q0603-301-T in all applications?

A: BLM18KG331WH1D is a parametric equivalent with enhanced performance (330 Ohms impedance, 1.25A current rating, 110 mOhm DC resistance). The 30 Ohm impedance increase must be evaluated against application requirements. This part is designated for power line filtering. Substitution is valid only when the higher impedance specification is acceptable for the target circuit.

Q: Are all substitute parts AEC-Q200 qualified?

A: Yes. MFBA2V1608-301-R, MFBA2V1608P-301-R, and BLM18KG331WH1D all carry AEC-Q200 automotive qualification, matching the original AFBC-Q0603-301-T specification.

Q: What is the package compatibility across all parts?

A: All parts use the 0603 (1608 Metric) surface mount package with identical footprint dimensions (0.063" L x 0.031" W / 1.60 mm x 0.80 mm). Package height varies between 0.80 mm and 0.95 mm, which is within standard 0603 package tolerance and does not affect PCB assembly or reflow compatibility.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All substitute parts listed are RoHS3 compliant and REACH unaffected, matching the environmental compliance profile of the AFBC-Q0603-301-T.

Q: What is the moisture sensitivity level for substitute parts?

A: All substitute parts maintain MSL 1 (Unlimited) moisture sensitivity rating, indicating no special moisture control requirements during storage or handling.