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Equivalent & Substitute Parts for UWT1C331MNR1GS
Part Overview
The UWT1C331MNR1GS is a 330 µF, 16 V aluminum electrolytic capacitor in surface mount radial can package manufactured by Nichicon. This part operates across -55°C to 105°C with a rated lifetime of 1000 hours at 105°C and is classified as obsolete. Due to its obsolete status, equivalent and substitute parts with improved specifications, active product status, and enhanced compliance certifications are available to ensure design continuity and supply chain reliability.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Capacitance | 330 µF |
| Voltage Rating | 16 V |
| Tolerance | ±20% |
| Package Type | Radial, Can - SMD |
| Physical Dimensions | 0.315" Dia (8.00mm) × 0.394" H (10.00mm) |
| Surface Mount Land Size | 0.327" L × 0.327" W (8.30mm × 8.30mm) |
| Operating Temperature Range | -55°C to 105°C |
| Polarization | Polar |
| Mounting Type | Surface Mount |
| RoHS Status | RoHS3 Compliant (substitutes) |
Substitute Part Grouping Explanation
Substitution for UWT1C331MNR1GS is determined by strict equivalence in the following parameters: capacitance (330 µF), voltage rating (16 V), tolerance (±20%), package type (Radial, Can - SMD), physical dimensions (0.315" diameter, 0.394" height maximum), surface mount land size (0.327" × 0.327"), operating temperature range (-55°C to 105°C), and polarization (polar). Substitute parts are grouped into three categories:
Direct Equivalents (Same Voltage, Same Lifetime): Parts maintaining 16 V rating and 1000 hour lifetime at 105°C with identical physical footprint.
Direct Substitutes (Same Voltage, Enhanced Lifetime): Parts maintaining 16 V rating with improved lifetime specifications (2000 or 5000 hours at 105°C), identical physical footprint, and active product status.
Upgrade Options (Higher Voltage Rating): Parts with 25 V rating that maintain 330 µF capacitance, identical physical footprint, and enhanced lifetime, suitable for applications requiring voltage margin.
Parameter Comparison
| Part Number | Manufacturer | Series | Capacitance | Voltage | Lifetime @ 105°C | Height (Max) | Product Status | RoHS Status | Packaging |
|---|---|---|---|---|---|---|---|---|---|
| UWT1C331MNR1GS | Nichicon | UWT | 330 µF | 16 V | 1000 Hrs | 0.394" (10.00mm) | Obsolete | Non-compliant | SMD |
| UWT1C331MNL1GS | Nichicon | UWT | 330 µF | 16 V | 1000 Hrs | 0.394" (10.00mm) | Active | ROHS3 Compliant | Cut Tape & Digi-Reel |
| UCL1C331MNL1GS | Nichicon | UCL | 330 µF | 16 V | 2000 Hrs | 0.394" (10.00mm) | Active | ROHS3 Compliant | Tape & Reel |
| UUD1C331MNL1GS | Nichicon | UUD | 330 µF | 16 V | 5000 Hrs | 0.413" (10.50mm) | Active | ROHS3 Compliant | Cut Tape & Digi-Reel |
| UCD1C331MNL1GS | Nichicon | UCD | 330 µF | 16 V | 5000 Hrs | 0.413" (10.50mm) | Active | ROHS3 Compliant | Cut Tape & Digi-Reel |
| UWZ1C331MCL1GS | Nichicon | UWZ | 330 µF | 16 V | 1000 Hrs | 0.394" (10.00mm) | Active | ROHS3 Compliant | Tape & Reel |
| UCD1E331MNL1GS | Nichicon | UCD | 330 µF | 25 V | 5000 Hrs | 0.413" (10.50mm) | Active | ROHS3 Compliant | Tape & Reel |
| UCL1E331MNL1GS | Nichicon | UCL | 330 µF | 25 V | 2000 Hrs | 0.394" (10.00mm) | Active | ROHS3 Compliant | Tape & Reel |
| EMVY160ARA331MHA0G | Chemi-Con | Alchip™- MVY | 330 µF | 16 V | 2000 Hrs | 0.394" (10.00mm) | Active | ROHS3 Compliant | Tape & Reel |
| 865060353008 | Würth Elektronik | WCAP-ASLL | 330 µF | 16 V | 5000 Hrs | 0.413" (10.50mm) | Active | ROHS3 Compliant | Tape & Reel |
| 865060453008 | Würth Elektronik | WCAP-ASLL | 330 µF | 25 V | 5000 Hrs | 0.413" (10.50mm) | Active | ROHS3 Compliant | Tape & Reel |
Engineering Selection Recommendations
For Direct Replacement (Same Specifications): UWT1C331MNL1GS is the direct equivalent with identical electrical and physical specifications. This part maintains the 1000-hour lifetime at 105°C and 16 V rating while offering active product status and ROHS3 compliance, eliminating obsolescence risk.
For Enhanced Reliability (Extended Lifetime): UCL1C331MNL1GS and EMVY160ARA331MHA0G provide 2000-hour lifetime at 105°C with identical physical dimensions. UUD1C331MNL1GS, UCD1C331MNL1GS, 865060353008, and 865060453008 extend lifetime to 5000 hours at 105°C. These options accommodate applications requiring extended operational life or higher thermal stress conditions.
For Voltage Margin Applications: UCD1E331MNL1GS, UCL1E331MNL1GS, and 865060453008 provide 25 V rating while maintaining 330 µF capacitance and identical footprint. These are suitable for circuits where voltage headroom is required or where supply voltage tolerance demands additional margin.
For Automotive Applications: UUD1C331MNL1GS and UCD1C331MNL1GS carry AEC-Q200 qualification, appropriate for automotive-grade designs requiring extended lifetime and enhanced reliability specifications.
For High-Temperature Reflow Processes: UWZ1C331MCL1GS is specified for high-temperature reflow applications while maintaining 1000-hour lifetime and identical physical footprint.
All substitute parts maintain ROHS3 compliance and identical surface mount land size (0.327" × 0.327"), ensuring PCB layout compatibility.
Frequently Asked Questions (FAQ)
Q: Can UWT1C331MNL1GS directly replace UWT1C331MNR1GS? A: Yes. UWT1C331MNL1GS is a direct equivalent with identical capacitance (330 µF), voltage rating (16 V), tolerance (±20%), physical dimensions (0.315" diameter, 0.394" height), and lifetime (1000 hours at 105°C). The primary difference is packaging format (Cut Tape & Digi-Reel versus SMD) and active product status.
Q: What is the difference between 16 V and 25 V rated parts? A: The 25 V rated parts (UCD1E331MNL1GS, UCL1E331MNL1GS, 865060453008) maintain identical capacitance and physical footprint but provide higher voltage margin. These are suitable for applications where circuit voltage may approach or exceed 16 V nominal, or where design standards require voltage derating.
Q: Why do some substitutes have different heights (0.394" versus 0.413")? A: Parts with 5000-hour lifetime at 105°C (UUD1C331MNL1GS, UCD1C331MNL1GS, 865060353008, 865060453008) have maximum seated height of 0.413" (10.50mm) compared to 0.394" (10.00mm) for 1000 and 2000-hour parts. This height difference must be verified against PCB clearance requirements before substitution.
Q: Are all substitute parts RoHS compliant? A: Yes. All substitute parts listed are ROHS3 compliant. The original UWT1C331MNR1GS is RoHS non-compliant, making substitution necessary for designs requiring RoHS compliance.
Q: What packaging options are available? A: Substitute parts are available in three packaging formats: Cut Tape & Digi-Reel (UWT1C331MNL1GS, UUD1C331MNL1GS, UCD1C331MNL1GS), Tape & Reel (UCL1C331MNL1GS, UWZ1C331MCL1GS, UCD1E331MNL1GS, UCL1E331MNL1GS, EMVY160ARA331MHA0G, 865060353008, 865060453008). Packaging selection depends on assembly process and supply chain requirements.
Q: Can I use a 5000-hour part in place of a 1000-hour part? A: Yes. Parts with extended lifetime (5000 hours) are direct substitutes for shorter-lifetime parts when physical dimensions are compatible. Verify height clearance: 5000-hour parts are 0.413" maximum height versus 0.394" for 1000-hour parts.
Q: Are automotive-rated parts (AEC-Q200) required for all applications? A: No. AEC-Q200 qualification (UUD1C331MNL1GS, UCD1C331MNL1GS) is required only for automotive applications. General-purpose applications can use non-automotive qualified parts.
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