UTS1C331MPD Equivalent & Substitute Parts

Part Overview

The UTS1C331MPD is a 330 µF, 16 V aluminum electrolytic capacitor in radial, can package manufactured by Nichicon. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and production continuity. The UTS series operates at 5000 hours lifetime at 105°C with general-purpose applications across consumer and industrial electronics requiring stable capacitance and ripple current handling.

Key Parameters

Parameter	Value
Capacitance	330 µF
Voltage Rating	16 V
Tolerance	±20%
Lifetime @ 105°C	5000 Hrs
Operating Temperature Range	-40°C ~ 105°C
Polarization	Polar
Package Type	Radial, Can
Mounting Type	Through Hole
Lead Spacing	0.138" (4.60mm)
Diameter	0.315" (8.00mm)
Height	0.354" (9.00mm)
Ripple Current @ 120 Hz	126 mA
Ripple Current @ 100 kHz	210 mA

Substitute Part Grouping Explanation

Substitution for the UTS1C331MPD is determined by strict electrical and mechanical compatibility criteria:

Electrical Parameters (Non-Negotiable):

Capacitance: 330 µF (exact match required)
Voltage Rating: 16 V (minimum, equal or higher acceptable)
Tolerance: ±20% (matching tolerance class)
Polarization: Polar (electrolytic type maintained)
Operating Temperature: -40°C ~ 105°C (full range coverage)

Mechanical Parameters (Package Compatibility):

Package Type: Radial, Can (through-hole form factor)
Lead Spacing: 0.138" (4.60mm) or 0.197" (5.00mm) acceptable with PCB redesign consideration
Diameter: 0.315" (8.00mm) standard
Height: Varies by series (9.00mm to 17.50mm) — board clearance must be verified

Performance Considerations:

Lifetime @ 105°C: Ranges from 1000 to 7000 hours across substitute options
Ripple Current Capability: Varies significantly (126 mA to 665 mA @ 120 Hz)
Impedance: Provided where available for high-frequency applications

Product Status:

Active status preferred for new designs
Not For New Designs acceptable for legacy system support
Obsolete parts require immediate substitution

Parameter Comparison

Part Number	Manufacturer	Capacitance	Voltage	Tolerance	Lifetime @ 105°C	Lead Spacing	Height (Max)	Ripple Current @ 120 Hz	Product Status
UTS1C331MPD	Nichicon	330 µF	16 V	±20%	5000 Hrs	0.138" (4.60mm)	0.354" (9.00mm)	126 mA	Obsolete
UHD1C331MPD	Nichicon	330 µF	16 V	±20%	3000 Hrs	0.138" (4.60mm)	0.512" (13.00mm)	532 mA	Not For New Designs
UHE1C331MPD	Nichicon	330 µF	16 V	±20%	7000 Hrs	0.138" (4.60mm)	0.453" (11.50mm)	448 mA	Not For New Designs
UHV1C331MPD	Nichicon	330 µF	16 V	±20%	6000 Hrs	0.138" (4.60mm)	0.512" (13.00mm)	415 mA	Not For New Designs
UKL1C331MPDANA	Nichicon	330 µF	16 V	±20%	1000 Hrs	0.197" (5.00mm)	0.689" (17.50mm)	420 mA	Not For New Designs
EEU-FM1C331	Panasonic	330 µF	16 V	±20%	3000 Hrs	0.138" (4.60mm)	0.512" (13.00mm)	665 mA	Active
EEU-FM1C331B	Panasonic	330 µF	16 V	±20%	3000 Hrs	0.197" (5.00mm)	0.512" (13.00mm)	665 mA	Active
EEU-FM1C331BJ	Panasonic	330 µF	16 V	±20%	3000 Hrs	0.197" (5.00mm)	0.512" (13.00mm)	665 mA	Active
EKZE160ELL331MHB5D	Chemi-Con	330 µF	16 V	±20%	3000 Hrs	0.138" (4.60mm)	0.512" (13.00mm)	380 mA	Active
MAL214235331E3	Vishay	330 µF	16 V	±20%	2500 Hrs	0.197" (5.00mm)	0.512" (13.00mm)	—	Active
MAL214255331E3	Vishay	330 µF	16 V	±20%	2500 Hrs	0.138" (4.60mm)	0.512" (13.00mm)	—	Active

Engineering Selection Recommendations

For Direct PCB Replacement (No Layout Modification):

Select parts matching the original lead spacing of 0.138" (4.60mm) and height constraints. EEU-FM1C331 (Panasonic, Active status) provides the closest electrical performance with higher ripple current capability (665 mA @ 120 Hz) and active product status. EKZE160ELL331MHB5D (Chemi-Con, Active status) offers equivalent lead spacing with ROHS3 compliance and active availability.

For Applications Requiring Extended Lifetime:

UHE1C331MPD (Nichicon, 7000 Hrs @ 105°C) delivers the longest operational life among Nichicon options, though classified as Not For New Designs. This part requires height clearance of 0.453" (11.50mm) and is suitable for legacy system maintenance.

For New Design Implementation:

Panasonic EEU-FM series (EEU-FM1C331, EEU-FM1C331B, EEU-FM1C331BJ) all carry Active product status with ROHS3 compliance. Lead spacing variants (0.138" and 0.197") accommodate different PCB pitch requirements. Impedance specification of 56 mOhms supports high-frequency ripple current applications.

For Cost-Optimized Legacy Support:

Vishay MAL214255331E3 (0.138" lead spacing) or MAL214235331E3 (0.197" lead spacing) provide 2500-hour lifetime with Active status and ROHS3 compliance at competitive availability levels.

Frequently Asked Questions (FAQ)

Q: Can UTS1C331MPD be replaced with any 330 µF, 16 V capacitor?

A: No. Substitution requires matching capacitance (330 µF), voltage rating (16 V minimum), tolerance (±20%), and package type (radial, can, through-hole). Lead spacing and height must be verified against PCB layout constraints. Ripple current and lifetime specifications should be evaluated for application requirements.

Q: What is the impact of different lead spacing (0.138" vs 0.197")?

A: Lead spacing determines PCB pad pitch. Parts with 0.138" spacing (UTS1C331MPD, EEU-FM1C331, EKZE160ELL331MHB5D, MAL214255331E3) mount directly on original footprints. Parts with 0.197" spacing (EEU-FM1C331B, EEU-FM1C331BJ, UKL1C331MPDANA, MAL214235331E3) require PCB redesign or adapter solutions.

Q: Does product status affect substitution eligibility?

A: Product status indicates manufacturer support and availability. Active parts (Panasonic EEU-FM series, Chemi-Con EKZE, Vishay MAL) are preferred for new designs and long-term supply assurance. Not For New Designs parts (Nichicon UHD, UHE, UHV) are acceptable for legacy system maintenance where supply exists. Obsolete parts (UTS1C331MPD) require immediate substitution.

Q: How do ripple current ratings affect component selection?

A: Ripple current capacity determines thermal stability under AC stress. The original UTS1C331MPD handles 126 mA @ 120 Hz. Substitutes range from 380 mA to 665 mA @ 120 Hz. Higher ripple current capability provides thermal margin; lower ratings require verification that application current does not exceed component specification.

Q: Are all substitute parts ROHS3 compliant?

A: Panasonic EEU-FM series, Chemi-Con EKZE, and Vishay MAL parts are ROHS3 compliant. Nichicon UTS, UHD, UHE, UHV series show ROHS3 compliance except where noted. Compliance status must be confirmed for regulated applications.

Q: What is the significance of lifetime @ 105°C variation?

A: Lifetime specification indicates expected operational hours at maximum rated temperature. UTS1C331MPD specifies 5000 hours. Substitutes range from 1000 to 7000 hours. For applications operating continuously at elevated temperatures, longer lifetime parts reduce failure risk. For room-temperature operation, lifetime impact is minimal.

Q: Can height differences affect board assembly?

A: Yes. Original UTS1C331MPD height is 0.354" (9.00mm). Substitutes range from 0.354" to 0.689" (17.50mm). Taller components may interfere with enclosure clearance, adjacent components, or conformal coating processes. Board layout must accommodate the selected substitute height.

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