F1399BB03 Equivalent & Substitute Parts

Part Overview

The F1399BB03 is a single-phase EMC/EMI line filter manufactured by Curtis Industries, rated for 250VAC at 3A with 50/60Hz operation. This chassis-mount filter features two-stage configuration with wire lead termination and is designed for general-purpose applications requiring electromagnetic compatibility filtering. The part is currently active in production with 802 units in stock. Alternative models become necessary when addressing specific application requirements such as extended operating temperature ranges, broader frequency support, or alternative packaging and compliance certifications.

Substiute Parts

F1399BB03

Curtis IndustriesIn Stock: 868F1399BB03 Datasheet

Current PartRFQ

3ER3

TE Connectivity Corcom FiltersIn Stock: 9613ER3 Datasheet

SimilarRFQ

FN2060-3-07

Schaffner EMC Inc.In Stock: 1341FN2060-3-07 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the F1399BB03 is determined by strict equivalence across core electrical and mechanical parameters. All qualified substitute parts must maintain:

• Single-phase filter configuration with two-stage design
• 250VAC rated voltage
• 3A current capacity
• Chassis-mount installation method
• Wire lead termination
• General-purpose application suitability
• ROHS3 compliance status

The substitute parts identified—3ER3 (TE Connectivity Corcom Filters) and FN2060-3-07 (Schaffner EMC Inc.)—satisfy all mandatory equivalence criteria. Variations in operating temperature range, frequency bandwidth, inductance specifications, packaging format, and regulatory certifications represent secondary differentiators that do not disqualify substitution but may influence selection based on specific deployment contexts.

Parameter Comparison

Engineering Selection Recommendations

All three parts maintain active production status and ROHS3 compliance, confirming ongoing availability and environmental regulatory alignment. Selection between F1399BB03, 3ER3, and FN2060-3-07 should be based on application-specific requirements:

The F1399BB03 provides certification coverage through CE, CSA, TUV, and UR agencies, making it suitable for applications requiring TUV or UR-specific validation. The 3ER3 operates within a constrained temperature envelope (-10°C to 40°C) and carries CSA, UR, and VDE certifications, appropriate for standard industrial environments with VDE compliance requirements. The FN2060-3-07 offers the broadest operational temperature range (-25°C to 100°C) and extended frequency support (DC to 400Hz), with CE, CSA, ENEC, and UR certifications, positioning it for demanding thermal and frequency-variable applications.

Packaging format differences (box, bag, tray) reflect inventory and logistics considerations rather than functional performance variations.

Frequently Asked Questions (FAQ)

Q: Can 3ER3 directly replace F1399BB03 in all applications?

A: Yes, within the scope of standard industrial environments. Both parts share identical electrical ratings (250VAC, 3A, 50/60Hz), configuration (two-stage single-phase), and mounting specifications. The 3ER3 operates within -10°C to 40°C; applications requiring extended temperature operation should evaluate FN2060-3-07.

Q: What is the significance of the frequency difference between F1399BB03 (50/60Hz) and FN2060-3-07 (DC ~ 400Hz)?

A: The FN2060-3-07 supports DC and frequencies up to 400Hz, providing broader application flexibility for variable-frequency drive systems and non-standard power environments. The F1399BB03 and 3ER3 are optimized for standard AC mains frequencies (50/60Hz). Selection depends on actual operating frequency requirements.

Q: How do inductance values (4.62mH for 3ER3 vs. 2.5mH for FN2060-3-07) affect substitution?

A: Inductance affects filtering performance and impedance characteristics. The FN2060-3-07's lower inductance (2.5mH) may provide different attenuation profiles compared to the 3ER3 (4.62mH). Applications with specific EMI/EMC filtering requirements should confirm inductance compatibility with system design specifications.

Q: Are there certification differences that restrict substitution?

A: Each part carries distinct certification combinations. F1399BB03 includes TUV certification; 3ER3 includes VDE; FN2060-3-07 includes ENEC. All three hold CSA and UR certifications. Applications requiring specific regional or industry certifications must verify alignment with the substitute part's approval agency list.

Q: Does packaging format (box, bag, tray) affect electrical performance?

A: No. Packaging format is a logistics and inventory consideration only. Electrical and mechanical performance remains identical regardless of packaging type.