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Equivalent & Substitute Parts for EEE-1AA221P
Part Overview
The EEE-1AA221P is a 220 µF, 10 V aluminum electrolytic capacitor in SMD radial can package manufactured by Panasonic Electronic Components. This part operates across -40°C to 85°C with a rated lifetime of 2000 hours at 85°C and is qualified to AEC-Q200 automotive standards. The product status is Not For New Designs, making identification of active equivalent and substitute parts essential for ongoing production support and design updates.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Capacitance | 220 µF |
| Voltage Rating | 10 V |
| Tolerance | ±20% |
| Operating Temperature Range | -40°C to 85°C |
| Lifetime @ Temperature | 2000 Hrs @ 85°C |
| Package / Case | Radial, Can - SMD |
| Size / Dimension | 0.315" Dia (8.00mm) |
| Height - Seated (Max) | 0.244" (6.20mm) |
| Surface Mount Land Size | 0.327" L x 0.327" W (8.30mm x 8.30mm) |
| Mounting Type | Surface Mount |
| Polarization | Polar |
| AEC-Q200 Rating | Yes |
| RoHS Status | RoHS Compliant |
| Moisture Sensitivity Level | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitution of the EEE-1AA221P is determined by strict equivalence in the following parameters:
- Capacitance: 220 µF (exact match required)
- Voltage Rating: 10 V minimum (higher voltage ratings are acceptable as upgrades)
- Tolerance: ±20% (standard tolerance maintained)
- Package / Case: Radial, Can - SMD (physical footprint compatibility)
- Surface Mount Land Size: 0.327" L x 0.327" W (8.30mm x 8.30mm) (PCB layout compatibility)
- Mounting Type: Surface Mount (assembly process compatibility)
- Polarization: Polar (electrical circuit requirement)
- AEC-Q200 Rating: Required for automotive applications
Substitute parts are categorized as follows:
Direct Equivalents (Same Voltage, Active Status): Parts with 10 V rating and Active product status that maintain identical electrical and mechanical specifications.
Manufacturer Recommended Substitutes (Same Voltage, Enhanced Performance): Parts with 10 V rating and Active status offering improved thermal performance or lower ESR characteristics.
Voltage Upgrades (Higher Voltage Rating): Parts with 16 V rating that provide enhanced voltage margin while maintaining 220 µF capacitance and SMD package compatibility. These are electrically compatible and suitable for applications where higher voltage headroom is beneficial.
Enhanced Performance Variants (Lower ESR, Higher Ripple Current): Parts with improved electrical characteristics including lower impedance and higher ripple current handling capacity.
Dimensional Variants (Different Case Size): Parts with different physical dimensions that require PCB layout verification before substitution.
Parameter Comparison
| Part Number | Manufacturer | Series | Capacitance | Voltage | Tolerance | Operating Temp Range | Lifetime @ Temp | Size / Dimension | Height (Max) | Land Size | Product Status | Packaging |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| EEE-1AA221P | Panasonic | S | 220 µF | 10 V | ±20% | -40°C ~ 85°C | 2000 Hrs @ 85°C | 0.315" Dia (8.00mm) | 0.244" (6.20mm) | 0.327" x 0.327" (8.30mm x 8.30mm) | Not For New Designs | Tape & Reel |
| EEE-FK1A221AP | Panasonic | FK | 220 µF | 10 V | ±20% | -55°C ~ 105°C | 2000 Hrs @ 105°C | 0.315" Dia (8.00mm) | 0.256" (6.50mm) | 0.327" x 0.327" (8.30mm x 8.30mm) | Active | Cut Tape & Digi-Reel |
| EEE-FK1A221P | Panasonic | FK | 220 µF | 10 V | ±20% | -55°C ~ 105°C | 2000 Hrs @ 105°C | 0.315" Dia (8.00mm) | 0.256" (6.50mm) | 0.327" x 0.327" (8.30mm x 8.30mm) | Active | Tape & Reel |
| EEE-FK1C221AP | Panasonic | FK | 220 µF | 16 V | ±20% | -55°C ~ 105°C | 2000 Hrs @ 105°C | 0.315" Dia (8.00mm) | 0.256" (6.50mm) | 0.327" x 0.327" (8.30mm x 8.30mm) | Active | Cut Tape & Digi-Reel |
| EEE-FK1C221P | Panasonic | FK | 220 µF | 16 V | ±20% | -55°C ~ 105°C | 2000 Hrs @ 105°C | 0.315" Dia (8.00mm) | 0.256" (6.50mm) | 0.327" x 0.327" (8.30mm x 8.30mm) | Active | Tape & Reel |
| EEE-FP1A221AP | Panasonic | FP | 220 µF | 10 V | ±20% | -55°C ~ 105°C | 2000 Hrs @ 105°C | 0.315" Dia (8.00mm) | 0.244" (6.20mm) | 0.327" x 0.327" (8.30mm x 8.30mm) | Active | Tape & Reel |
| EEE-FP1C221AP | Panasonic | FP | 220 µF | 16 V | ±20% | -55°C ~ 105°C | 2000 Hrs @ 105°C | 0.315" Dia (8.00mm) | 0.244" (6.20mm) | 0.327" x 0.327" (8.30mm x 8.30mm) | Active | Tape & Reel |
| EEE-HBA221UAP | Panasonic | HB | 220 µF | 10 V | ±20% | -40°C ~ 105°C | 2000 Hrs @ 105°C | 0.315" Dia (8.00mm) | 0.244" (6.20mm) | 0.327" x 0.327" (8.30mm x 8.30mm) | Active | Tape & Reel |
| EEE-1CA221UP | Panasonic | S | 220 µF | 16 V | ±20% | -40°C ~ 85°C | 2000 Hrs @ 85°C | 0.315" Dia (8.00mm) | 0.244" (6.20mm) | 0.327" x 0.327" (8.30mm x 8.30mm) | Not For New Designs | Cut Tape & Digi-Reel |
| EEE-1AA221XAP | Panasonic | S | 220 µF | 10 V | ±20% | -40°C ~ 85°C | 2000 Hrs @ 85°C | 0.248" Dia (6.30mm) | 0.303" (7.70mm) | 0.260" x 0.260" (6.60mm x 6.60mm) | Not For New Designs | Tape & Reel |
| EEE-1AA221XP | Panasonic | S | 220 µF | 10 V | ±20% | -40°C ~ 85°C | 2000 Hrs @ 85°C | 0.248" Dia (6.30mm) | 0.303" (7.70mm) | 0.260" x 0.260" (6.60mm x 6.60mm) | Not For New Designs | Tape & Reel |
Engineering Selection Recommendations
For Direct Replacement (Same Electrical Performance, Active Status):
EEE-FK1A221P is the manufacturer-recommended direct substitute. This part maintains 220 µF capacitance and 10 V voltage rating with identical SMD package footprint (0.327" x 0.327" land size). The FK series offers Active product status with extended thermal performance (2000 Hrs @ 105°C versus 2000 Hrs @ 85°C), expanded operating temperature range (-55°C to 105°C), and ROHS3 compliance. Tape & Reel packaging matches the original part format.
For Voltage Margin Enhancement:
EEE-FK1C221P provides 16 V rating while maintaining 220 µF capacitance and identical SMD package compatibility. This upgrade is suitable for applications requiring higher voltage headroom. Active product status and ROHS3 compliance are maintained. Tape & Reel packaging is available.
For Enhanced Ripple Current Performance:
EEE-FP1A221AP (10 V) and EEE-FP1C221AP (16 V) offer superior ripple current handling (500 mA @ 100 kHz versus 300 mA @ 100 kHz in FK series) with lower ESR (180 mOhm @ 100 kHz). These parts maintain identical SMD package footprint and Active product status with ROHS3 compliance.
For Constrained Thermal Environments:
EEE-HBA221UAP operates across -40°C to 105°C with 2000 Hrs @ 105°C lifetime rating. This part maintains 10 V rating, 220 µF capacitance, and SMD package compatibility with Active product status.
Avoid for New Designs:
EEE-1AA221XAP and EEE-1AA221XP have Not For New Designs status and feature different physical dimensions (0.248" Dia, 6.30mm versus 0.315" Dia, 8.00mm) requiring PCB layout modification. EEE-1CA221UP also carries Not For New Designs status despite 16 V upgrade.
Frequently Asked Questions (FAQ)
Q: Can EEE-FK1A221P directly replace EEE-1AA221P without PCB modification?
A: Yes. Both parts share identical SMD package footprint with 0.327" x 0.327" (8.30mm x 8.30mm) land size and 0.315" diameter (8.00mm). Height difference (0.256" versus 0.244") does not affect PCB assembly compatibility. Electrical specifications (220 µF, ±20%, 10 V) are equivalent.
Q: What is the primary advantage of EEE-FK series over the original EEE-1AA221P?
A: EEE-FK series offers Active product status, extended thermal lifetime (2000 Hrs @ 105°C versus 85°C), expanded operating temperature range (-55°C to 105°C), and ROHS3 compliance. These improvements support long-term production continuity and enhanced reliability in automotive applications.
Q: Are 16 V rated parts (EEE-FK1C221P, EEE-FP1C221AP) electrically compatible with 10 V circuit designs?
A: Yes. Higher voltage-rated capacitors are electrically compatible in circuits designed for lower voltages. The 16 V rating provides additional voltage margin and does not affect circuit operation at 10 V or below. Capacitance (220 µF) and tolerance (±20%) remain identical.
Q: What is the difference between EEE-FK1A221AP (Cut Tape) and EEE-FK1A221P (Tape & Reel)?
A: Both parts are electrically and mechanically identical. The difference is packaging format: Cut Tape & Digi-Reel is suitable for lower-volume or manual assembly operations, while Tape & Reel is optimized for high-volume automated assembly. Select based on production volume and assembly equipment requirements.
Q: Why do EEE-1AA221XAP and EEE-1AA221XP have different physical dimensions?
A: These parts use a smaller case size (0.248" Dia, 6.30mm versus 0.315" Dia, 8.00mm) with different land size (0.260" x 0.260" versus 0.327" x 0.327"). PCB layout modification is required for substitution. Both carry Not For New Designs status.
Q: Which substitute offers the best ripple current performance?
A: EEE-FP1A221AP and EEE-FP1C221AP deliver the highest ripple current capacity (500 mA @ 100 kHz) with lowest ESR (180 mOhm @ 100 kHz). These parts are suitable for high-frequency switching applications requiring superior current handling.
Q: Is RoHS3 compliance required for my application?
A: EEE-FK and EEE-FP series parts carry ROHS3 compliance. The original EEE-1AA221P and similar S-series parts carry RoHS compliance (not ROHS3). Verify compliance requirements with your procurement or quality department before selection.
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