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UHE1V331MPD Equivalent & Substitute Parts
Part Overview
The UHE1V331MPD is a 330 µF, 35 V aluminum electrolytic capacitor in radial configuration manufactured by Nichicon. This component is classified as Not For New Designs, indicating it has been superseded in Nichicon's product portfolio. The UHE series offers a 7000-hour lifetime rating at 105°C, making it suitable for general-purpose applications requiring moderate operational longevity. Identifying equivalent and substitute parts is necessary due to the product's discontinued status for new designs and potential supply constraints.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Capacitance | 330 µF |
| Voltage Rating | 35 V |
| Tolerance | ±20% |
| Lifetime @ 105°C | 7000 Hrs |
| Operating Temperature Range | -40°C ~ 105°C |
| Polarization | Polar |
| Mounting Type | Through Hole |
| Package | Radial, Can |
| Lead Spacing | 0.197" (5.00 mm) |
| Diameter | 0.394" (10.00 mm) |
| Height | 0.630" (16.00 mm) |
| RoHS Status | ROHS3 Compliant |
Substitute Part Grouping Explanation
Substitution validity for the UHE1V331MPD is determined by strict equivalence across the following parameters: capacitance (330 µF), voltage rating (35 V), tolerance (±20%), polarization (polar), mounting type (through hole), package type (radial can), and lead spacing (5.00 mm). The diameter and height may vary within mechanical constraints of the PCB layout. Lifetime rating and ripple current specifications are secondary considerations that may differ between substitutes without affecting basic electrical function, though they influence reliability in specific thermal and AC stress environments.
Substitute parts are grouped into two categories:
Similar Substitutes (Nichicon UHE/UHD/UHV Series): Direct Nichicon alternatives within the same manufacturer ecosystem, offering identical electrical specifications with variations in lifetime ratings (4000–7000 hours) and physical dimensions.
Active Substitutes (Panasonic and Chemi-Con): Parts from alternative manufacturers with active product status, providing equivalent electrical performance with enhanced or comparable lifetime ratings and full compliance certifications.
Parameter Comparison
| Part Number | Manufacturer | Capacitance | Voltage | Tolerance | Lifetime @ 105°C | Diameter (mm) | Height (mm) | Lead Spacing (mm) | Product Status | RoHS |
|---|---|---|---|---|---|---|---|---|---|---|
| UHE1V331MPD | Nichicon | 330 µF | 35 V | ±20% | 7000 Hrs | 10.00 | 16.00 | 5.00 | Not For New Designs | ROHS3 |
| UHD1V331MPD | Nichicon | 330 µF | 35 V | ±20% | 4000 Hrs | 10.00 | 17.50 | 5.00 | Not For New Designs | ROHS3 |
| UHV1V331MPD | Nichicon | 330 µF | 35 V | ±20% | 6000 Hrs | 10.00 | 14.00 | 5.00 | Not For New Designs | ROHS3 |
| EEU-EB1V331 | Panasonic | 330 µF | 35 V | ±20% | 10000 Hrs | 10.00 | 17.00 | 5.00 | Active | ROHS3 |
| EKY-350ELL331MJ16S | Chemi-Con | 330 µF | 35 V | ±20% | 7000 Hrs | 10.00 | 17.50 | 5.00 | Active | ROHS3 |
| EEU-FM1V331 | Panasonic | 330 µF | 35 V | ±20% | 4000 Hrs | 10.00 | 17.50 | 5.00 | Active | ROHS3 |
| EEU-FM1V331B | Panasonic | 330 µF | 35 V | ±20% | 4000 Hrs | 10.00 | 17.50 | 5.00 | Active | ROHS3 |
| EEU-FM1V331L | Panasonic | 330 µF | 35 V | ±20% | 4000 Hrs | 8.00 | 22.00 | 4.60 | Active | ROHS3 |
| EEU-FM1V331LB | Panasonic | 330 µF | 35 V | ±20% | 4000 Hrs | 8.00 | 22.00 | 5.00 | Active | ROHS3 |
| EEU-FM1V331LBJ | Panasonic | 330 µF | 35 V | ±20% | 4000 Hrs | 8.00 | 22.00 | 5.00 | Active | ROHS3 |
| EKZE350ELL331MJ16S | Chemi-Con | 330 µF | 35 V | ±20% | 4000 Hrs | 10.00 | 17.50 | 5.00 | Active | ROHS3 |
Engineering Selection Recommendations
Direct Mechanical Fit (Identical Footprint): UHD1V331MPD, UHV1V331MPD, EEU-EB1V331, EKY-350ELL331MJ16S, EEU-FM1V331, EEU-FM1V331B, and EKZE350ELL331MJ16S maintain the 10.00 mm diameter and 5.00 mm lead spacing of the UHE1V331MPD. These parts require no PCB layout modification and provide direct drop-in replacement capability.
Enhanced Reliability (Active Product Status): EEU-EB1V331 (Panasonic) and EKY-350ELL331MJ16S (Chemi-Con) are classified as Active products with full manufacturer support. EEU-EB1V331 offers extended lifetime (10000 hours at 105°C) compared to the original 7000-hour rating. Both parts carry ROHS3 compliance and are suitable for new design implementations.
Packaging Considerations: EEU-FM1V331B and EEU-FM1V331LBJ are available in Cut Tape (CT) packaging, suitable for automated assembly processes. EEU-FM1V331 and EKZE350ELL331MJ16S are supplied in Bulk packaging. Selection depends on production volume and assembly methodology.
Dimensional Variants: EEU-FM1V331L, EEU-FM1V331LB, and EEU-FM1V331LBJ feature reduced diameter (8.00 mm) and increased height (22.00 mm). These parts are suitable only if PCB layout accommodates the modified footprint. EEU-FM1V331L uses 4.60 mm lead spacing, requiring PCB redesign; EEU-FM1V331LB and EEU-FM1V331LBJ maintain 5.00 mm spacing.
Frequently Asked Questions (FAQ)
Q: Can UHD1V331MPD replace UHE1V331MPD directly? A: Yes. Both parts share identical capacitance (330 µF), voltage rating (35 V), tolerance (±20%), diameter (10.00 mm), and lead spacing (5.00 mm). The primary difference is reduced lifetime (4000 hours versus 7000 hours at 105°C). Direct PCB substitution is mechanically and electrically valid.
Q: What is the advantage of EEU-EB1V331 over the original UHE1V331MPD? A: EEU-EB1V331 is an active Panasonic product with 10000-hour lifetime at 105°C, compared to UHE1V331MPD's 7000-hour rating. It maintains identical electrical specifications and footprint (10.00 mm diameter, 5.00 mm lead spacing). The extended lifetime provides improved reliability in thermally stressed applications.
Q: Are EEU-FM1V331L and EEU-FM1V331LB interchangeable with UHE1V331MPD? A: Electrically, yes. Mechanically, only EEU-FM1V331LB is a direct fit, as it maintains 5.00 mm lead spacing and 10.00 mm diameter compatibility. EEU-FM1V331L uses 4.60 mm lead spacing and requires PCB modification. Both feature reduced diameter (8.00 mm) and increased height (22.00 mm), necessitating layout verification.
Q: What is the difference between EEU-FM1V331, EEU-FM1V331B, and EEU-FM1V331LBJ? A: All three are Panasonic FM-A series parts with identical electrical specifications (330 µF, 35 V, 4000-hour lifetime). EEU-FM1V331 is supplied in Bulk packaging. EEU-FM1V331B is Cut Tape (CT) packaged. EEU-FM1V331LBJ is also Cut Tape but with unspecified packaging designation. EEU-FM1V331 and EEU-FM1V331B share identical dimensions (10.00 mm diameter, 17.50 mm height, 5.00 mm lead spacing).
Q: Which substitute offers the best balance of availability and reliability? A: EEU-FM1V331 (Panasonic) provides high inventory (75,615 pieces), active product status, and ROHS3 compliance. EKY-350ELL331MJ16S (Chemi-Con) offers matching 7000-hour lifetime with 8,462 pieces in stock. Both maintain identical footprint to UHE1V331MPD.
Q: Are all substitutes ROHS3 compliant? A: Yes. All listed substitute parts carry ROHS3 Compliant certification, meeting regulatory requirements for hazardous substance restrictions.
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