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Equivalent & Substitute Parts for UWZ1A331MCL1GS
Part Overview
The UWZ1A331MCL1GS is a 330 µF, 10 V aluminum electrolytic capacitor in surface mount radial can package manufactured by Nichicon. This component is rated for 1000 hours at 105°C and is designed for high temperature reflow applications. The part is active and in production status with ROHS3 compliance.
Substitute parts are necessary when the original component becomes unavailable, when design requirements change to accommodate higher voltage ratings or extended lifetime specifications, or when alternative packaging formats are required for manufacturing optimization.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Capacitance | 330 µF |
| Voltage Rating | 10 V |
| Tolerance | ±20% |
| Lifetime @ 105°C | 1000 Hrs |
| Operating Temperature Range | -55°C ~ 105°C |
| Package Type | Radial, Can - SMD |
| Mounting Type | Surface Mount |
| Size / Dimension | 0.315" Dia (8.00mm) |
| Height - Seated (Max) | 0.394" (10.00mm) |
| Polarization | Polar |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitution of the UWZ1A331MCL1GS is determined by the following criteria:
Upgrade Substitutes maintain identical capacitance (330 µF) and tolerance (±20%) while increasing voltage rating or lifetime. These parts are electrically compatible in applications where the original 10 V rating is conservative or where higher voltage margin is required:
- UWT1C331MNL1GS: 16 V rating, same 1000 Hr lifetime, different packaging (Cut Tape)
- UWT1E331MNL1GS: 25 V rating, same 1000 Hr lifetime, different packaging (Cut Tape)
- UWZ1C331MCL1GS: 16 V rating, same 1000 Hr lifetime, same packaging (Tape & Reel)
Similar Substitutes maintain the same 330 µF capacitance, 10 V voltage rating, and ±20% tolerance but differ in lifetime rating, physical dimensions, or series designation. These parts are functionally equivalent for the same voltage class:
- UCL1A331MCL6GS: 2000 Hr lifetime, larger case (0.394" Dia), different impedance
- UCL1A331MNL1GS: 2000 Hr lifetime, same case size, lower impedance (80 mOhms)
- UUA1A331MNL1GS: 5000 Hr lifetime, larger case (0.394" Dia)
- UUD1A331MNL1GS: 5000 Hr lifetime, AEC-Q200 rated, automotive qualified
- UUX1A331MNL1GS: 2000 Hr lifetime, larger case (0.394" Dia)
- UUX1A331MNL6GS: 2000 Hr lifetime, same case size
- UWD1A331MCL1GS: 5000 Hr lifetime, same case size
Parameter Comparison
| Part Number | Manufacturer | Series | Capacitance | Voltage | Tolerance | Lifetime @ 105°C | Size / Dimension | Height (Max) | Packaging | RoHS Status |
|---|---|---|---|---|---|---|---|---|---|---|
| UWZ1A331MCL1GS | Nichicon | UWZ | 330 µF | 10 V | ±20% | 1000 Hrs | 0.315" Dia (8.00mm) | 0.394" (10.00mm) | Tape & Reel | ROHS3 |
| UWT1C331MNL1GS | Nichicon | UWT | 330 µF | 16 V | ±20% | 1000 Hrs | 0.315" Dia (8.00mm) | 0.394" (10.00mm) | Cut Tape & Digi-Reel | ROHS3 |
| UWT1E331MNL1GS | Nichicon | UWT | 330 µF | 25 V | ±20% | 1000 Hrs | 0.315" Dia (8.00mm) | 0.394" (10.00mm) | Cut Tape & Digi-Reel | ROHS3 |
| UWZ1C331MCL1GS | Nichicon | UWZ | 330 µF | 16 V | ±20% | 1000 Hrs | 0.315" Dia (8.00mm) | 0.394" (10.00mm) | Tape & Reel | ROHS3 |
| UCL1A331MCL6GS | Nichicon | UCL | 330 µF | 10 V | ±20% | 2000 Hrs | 0.394" Dia (10.00mm) | 0.303" (7.70mm) | Tape & Reel | ROHS3 |
| UCL1A331MNL1GS | Nichicon | UCL | 330 µF | 10 V | ±20% | 2000 Hrs | 0.315" Dia (8.00mm) | 0.394" (10.00mm) | Tape & Reel | ROHS3 |
| UUA1A331MNL1GS | Nichicon | UUA | 330 µF | 10 V | ±20% | 5000 Hrs | 0.394" Dia (10.00mm) | 0.394" (10.00mm) | Tape & Reel | ROHS3 |
| UUD1A331MNL1GS | Nichicon | UUD | 330 µF | 10 V | ±20% | 5000 Hrs | 0.315" Dia (8.00mm) | 0.413" (10.50mm) | Tape & Reel | ROHS3 |
| UUX1A331MNL1GS | Nichicon | UUX | 330 µF | 10 V | ±20% | 2000 Hrs | 0.394" Dia (10.00mm) | 0.413" (10.50mm) | Tape & Reel | ROHS3 |
| UUX1A331MNL6GS | Nichicon | UUX | 330 µF | 10 V | ±20% | 2000 Hrs | 0.315" Dia (8.00mm) | 0.413" (10.50mm) | Tape & Reel | ROHS3 |
| UWD1A331MCL1GS | Nichicon | UWD | 330 µF | 10 V | ±20% | 5000 Hrs | 0.315" Dia (8.00mm) | 0.394" (10.00mm) | Tape & Reel | ROHS3 |
Engineering Selection Recommendations
For Direct Replacement (Same Voltage, Same Lifetime): UWZ1C331MCL1GS is the preferred direct substitute, maintaining identical electrical specifications and packaging format (Tape & Reel) while increasing voltage rating to 16 V. This part is suitable for applications where the original 10 V specification is adequate but higher voltage margin is desired.
For Voltage Upgrade Applications: UWT1C331MNL1GS (16 V) or UWT1E331MNL1GS (25 V) provide higher voltage ratings with identical 1000 Hr lifetime. These parts require accommodation of different packaging format (Cut Tape & Digi-Reel) in manufacturing processes.
For Extended Lifetime Requirements: UCL1A331MNL1GS provides 2000 Hr lifetime in the same case size (0.315" Dia, 8.00mm) and maintains Tape & Reel packaging. UWD1A331MCL1GS provides 5000 Hr lifetime with identical case dimensions and packaging format.
For Automotive Applications: UUD1A331MNL1GS is AEC-Q200 qualified and rated for 5000 Hr lifetime at 105°C, suitable for automotive-grade designs requiring extended reliability.
All substitute parts maintain ROHS3 compliance, MSL Level 1 (Unlimited), and identical operating temperature range (-55°C ~ 105°C).
Frequently Asked Questions (FAQ)
Q: Can UWT1C331MNL1GS replace UWZ1A331MCL1GS directly on the PCB? A: Electrically yes, but the packaging differs. UWT1C331MNL1GS uses Cut Tape & Digi-Reel packaging versus Tape & Reel for the original part. Physical dimensions are identical (0.315" Dia, 0.394" height), so PCB footprint compatibility is maintained. Manufacturing processes for tape handling must be adjusted.
Q: What is the difference between UCL1A331MNL1GS and UWZ1A331MCL1GS? A: Both are 330 µF, 10 V, ±20% tolerance parts in identical case size. UCL1A331MNL1GS provides 2000 Hr lifetime versus 1000 Hr for the original, offering extended operational life. The UCL series is designated for general purpose applications versus high temperature reflow for the UWZ series.
Q: Is UUD1A331MNL1GS suitable for non-automotive applications? A: Yes. UUD1A331MNL1GS is AEC-Q200 qualified, meaning it exceeds automotive reliability standards and is suitable for any application requiring 5000 Hr lifetime at 105°C. The automotive qualification does not restrict use in other industries.
Q: Why do some substitute parts have different physical heights? A: Different Nichicon series use varying internal construction methods. UCL1A331MCL6GS has a lower seated height (0.303") due to different internal design, while UUD1A331MNL1GS and UUX series have heights up to 0.413". PCB layout must accommodate these dimensional variations.
Q: Can I use a 25 V rated capacitor (UWT1E331MNL1GS) in a 10 V circuit? A: Yes. Higher voltage ratings are backward compatible in lower voltage applications. The 25 V part will function correctly in a 10 V circuit with no performance degradation. This provides additional safety margin and is a valid substitution strategy.
Q: What does MSL Level 1 mean for these capacitors? A: MSL (Moisture Sensitivity Level) 1 indicates unlimited shelf life without moisture bake requirements. These parts can be stored indefinitely without special moisture control, simplifying inventory management and reducing manufacturing constraints.
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