EEU-FC2A390LB Equivalent & Substitute Parts

Part Overview

The EEU-FC2A390LB is a 39 µF, 100 V aluminum electrolytic capacitor in radial configuration manufactured by Panasonic Electronic Components. This component is rated for automotive applications with AEC-Q200 compliance and features a 2000-hour lifetime at 105°C operating temperature. The part is currently in active production status with 698 units in stock.

Substitute parts are identified when equivalent electrical and mechanical specifications are maintained across the same product series, enabling direct replacement in circuit designs without performance degradation.

Substiute Parts

EEU-FC2A390LB

Panasonic Electronic ComponentsIn Stock: 722EEU-FC2A390LB Datasheet

Current PartRFQ

EEU-FC2A390L

Panasonic Electronic ComponentsIn Stock: 1019EEU-FC2A390L Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the EEU-FC2A390LB is determined by strict equivalence across the following parameters:

• Capacitance value: 39 µF (exact match required)
• Voltage rating: 100 V (exact match required)
• Tolerance: ±20% (exact match required)
• Lifetime specification: 2000 Hrs @ 105°C (exact match required)
• Operating temperature range: -55°C ~ 105°C (exact match required)
• Polarization: Polar (exact match required)
• Mounting type: Through Hole (exact match required)
• Package configuration: Radial, Can (exact match required)
• Lead spacing: 0.197" (5.00 mm) (exact match required)
• Ripple current ratings: 295.8 mA @ 120 Hz and 455 mA @ 100 kHz (exact match required)
• Impedance: 330 mOhms (exact match required)
• Automotive compliance: AEC-Q200 (exact match required)

The EEU-FC2A390L meets all substitution criteria and is classified as a direct equivalent within the Panasonic FC series.

Parameter Comparison

Engineering Selection Recommendations

Both the EEU-FC2A390LB and EEU-FC2A390L are active production components with full AEC-Q200 automotive compliance and RoHS3 certification. The primary distinction between these parts is the seated height specification: the EEU-FC2A390LB has a maximum seated height of 1.024" (26.00 mm), while the EEU-FC2A390L has a maximum seated height of 0.866" (22.00 mm).

Selection between these equivalents should be based on available PCB space and mechanical clearance requirements. Both parts maintain identical electrical performance characteristics, thermal ratings, and automotive qualification status. The EEU-FC2A390L currently has higher inventory availability at 996 units compared to 698 units for the EEU-FC2A390LB.

Frequently Asked Questions (FAQ)

Q: Can the EEU-FC2A390L be used as a direct replacement for the EEU-FC2A390LB?

A: Yes, the EEU-FC2A390L is electrically and mechanically equivalent to the EEU-FC2A390LB across all specified parameters. The only difference is the seated height dimension. Verify that your PCB layout accommodates the 0.866" (22.00 mm) maximum height of the EEU-FC2A390L before substitution.

Q: What are the critical parameters that define substitution eligibility?

A: Substitution requires exact equivalence in capacitance (39 µF), voltage rating (100 V), tolerance (±20%), lifetime specification (2000 Hrs @ 105°C), operating temperature range (-55°C ~ 105°C), lead spacing (0.197" / 5.00 mm), ripple current ratings, impedance (330 mOhms), and automotive compliance (AEC-Q200).

Q: Are both parts suitable for automotive applications?

A: Yes, both the EEU-FC2A390LB and EEU-FC2A390L carry AEC-Q200 qualification and are rated for automotive applications with identical thermal and electrical performance specifications.

Q: What is the significance of the height difference between these parts?

A: The EEU-FC2A390LB has a maximum seated height of 1.024" (26.00 mm), while the EEU-FC2A390L has a maximum seated height of 0.866" (22.00 mm). This 4.00 mm difference may be critical in space-constrained PCB designs. Confirm your mechanical clearance requirements before selecting either part.

Q: Do both parts have the same packaging and lead configuration?

A: Yes, both parts use identical through-hole radial can packaging with 0.197" (5.00 mm) lead spacing and are supplied in Tape & Box (TB) format.