UWD1E151MCL1GS Equivalent & Substitute Parts

Part Overview

The UWD1E151MCL1GS is a 150 µF, 25 V aluminum electrolytic capacitor in surface mount radial can package manufactured by Nichicon. This component is rated for 5000 hours at 105°C and is designed for general purpose applications. The part is currently active in production with ROHS3 compliance and unlimited moisture sensitivity rating.

Equivalent and substitute parts are identified when electrical parameters (capacitance, voltage rating, ripple current capability, and impedance) and mechanical parameters (package dimensions, mounting type, and land size) align within acceptable tolerances for the application circuit. Alternative manufacturers and series variants are documented to support supply chain flexibility and design optimization.

Key Parameters

Parameter	Value	Unit
Capacitance	150	µF
Voltage Rating	25	V
Tolerance	±20%	—
Lifetime @ 105°C	5000	Hrs
Operating Temperature Range	-55 to 105	°C
Ripple Current @ 120 Hz	225	mA
Ripple Current @ 100 kHz	450	mA
Impedance	170	mOhms
Package Diameter	8.00	mm
Package Height	10.00	mm
Land Size	8.30 × 8.30	mm
Mounting Type	Surface Mount	—
RoHS Status	ROHS3 Compliant	—
MSL Rating	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict alignment of electrical and mechanical parameters. The following criteria define acceptable substitutes:

Primary Substitution Criteria:

Capacitance: 150 µF (exact match required)
Voltage Rating: 25 V minimum (equal or higher acceptable)
Tolerance: ±20% (matching specification)
Package Type: Radial, Can - SMD (exact match required)
Mounting: Surface Mount (exact match required)
Land Size: 8.30 × 8.30 mm (exact match required)
Operating Temperature: -55°C to 105°C minimum (equal or wider range acceptable)
Polarization: Polar (exact match required)

Secondary Considerations:

Ripple current capability (higher values provide design margin)
Impedance (lower values preferred for performance)
Lifetime rating (5000 hours at 105°C is baseline; higher ratings acceptable)
Product status (Active preferred for long-term availability)
Compliance certifications (AEC-Q200 for automotive applications)

Substitutes are categorized as Upgrade (enhanced specifications within same package) or Similar (equivalent electrical performance with minor parameter variations).

Parameter Comparison

Part Number	Manufacturer	Series	Capacitance (µF)	Voltage (V)	Lifetime @ 105°C (Hrs)	Ripple Current @ 120 Hz (mA)	Ripple Current @ 100 kHz (mA)	Impedance (mOhms)	Height (mm)	AEC-Q200	Application
UWD1E151MCL1GS	Nichicon	UWD	150	25	5000	225	450	170	10.00	—	General Purpose
UUD1E151MNL1GS	Nichicon	UUD	150	25	5000	225	450	170	10.50	Yes	Automotive
UUD1V151MNL1GS	Nichicon	UUD	150	35	5000	225	450	170	10.50	Yes	Automotive
UWD1V151MCL1GS	Nichicon	UWD	150	35	5000	225	450	170	10.00	—	General Purpose
UCD1E151MNL1GS	Nichicon	UCD	150	25	5000	300	600	160	10.50	Yes	Automotive
UCL1E151MCL6GS	Nichicon	UCL	150	25	2000	425	850	100	7.70	—	General Purpose
UCL1E151MNL1GS	Nichicon	UCL	150	25	2000	425	850	80	10.00	—	General Purpose
EEE-FK1E151AP	Panasonic	FK	150	25	2000	390	600	160	10.50	Yes	Automotive, High Temperature Reflow
EEE-FK1E151P	Panasonic	FK	150	25	2000	450	600	160	10.50	Yes	Automotive

Engineering Selection Recommendations

Direct Equivalent (Same Electrical & Mechanical Specifications):

UUD1E151MNL1GS is the primary equivalent to UWD1E151MCL1GS. Both parts share identical electrical parameters (150 µF, 25 V, 5000 Hrs @ 105°C, 170 mOhms impedance) and compatible package dimensions (8.00 mm diameter, land size 8.30 × 8.30 mm). The UUD series carries AEC-Q200 automotive qualification, providing enhanced reliability documentation for applications requiring automotive-grade components.

Voltage-Upgraded Alternatives (Higher Voltage Rating):

UWD1V151MCL1GS and UUD1V151MNL1GS both provide 35 V rating while maintaining 150 µF capacitance and identical ripple current specifications. These parts are suitable for circuits where voltage margin is required or where 35 V rated capacitors are preferred for design standardization. UUD1V151MNL1GS includes AEC-Q200 certification.

Higher Ripple Current Capability:

UCD1E151MNL1GS (Nichicon UCD series) and EEE-FK1E151P (Panasonic FK series) deliver enhanced ripple current handling: 300 mA @ 120 Hz and 600 mA @ 100 kHz, compared to the baseline 225 mA and 450 mA. Both parts maintain 150 µF, 25 V specifications with 5000 Hrs (UCD) or 2000 Hrs (Panasonic) lifetime ratings. Both carry AEC-Q200 certification. These are suitable for high-current ripple applications.

Lower Impedance Options:

UCL1E151MNL1GS provides 80 mOhms impedance (versus 170 mOhms baseline) with 425 mA @ 120 Hz and 850 mA @ 100 kHz ripple current. This part is suitable for applications requiring lower ESR performance. Lifetime is 2000 Hrs @ 105°C.

Cross-Manufacturer Alternatives:

Panasonic EEE-FK1E151AP and EEE-FK1E151P are qualified cross-manufacturer substitutes with AEC-Q200 certification. Both maintain 150 µF, 25 V specifications with 2000 Hrs lifetime. EEE-FK1E151AP is rated for high temperature reflow applications.

Product Status & Compliance:

All listed parts are Active in production status. All parts are ROHS3 compliant. Nichicon UCD and UUD series, plus Panasonic FK series, carry AEC-Q200 automotive qualification. Selection should prioritize AEC-Q200 certified parts for automotive or mission-critical applications.

Frequently Asked Questions (FAQ)

Q: Can UUD1E151MNL1GS replace UWD1E151MCL1GS directly?

A: Yes. Both parts are 150 µF, 25 V aluminum electrolytic capacitors with identical electrical performance (5000 Hrs @ 105°C, 170 mOhms impedance, 225 mA @ 120 Hz ripple current). Package dimensions are compatible (8.00 mm diameter, 8.30 × 8.30 mm land size). UUD1E151MNL1GS includes AEC-Q200 automotive certification, making it suitable for applications requiring higher reliability documentation.

Q: What is the difference between UWD and UUD series capacitors?

A: The UWD series is rated for general purpose applications, while the UUD series carries AEC-Q200 automotive qualification. Both series share identical electrical specifications when voltage and capacitance ratings match. The UUD series provides enhanced qualification documentation and stricter manufacturing controls suitable for automotive environments.

Q: Can I use a 35 V rated capacitor (UWD1V151MCL1GS or UUD1V151MNL1GS) in place of a 25 V rated capacitor?

A: Yes. A higher voltage rating capacitor is electrically compatible in circuits designed for lower voltage. The 35 V rated parts provide additional voltage margin and are suitable for applications where voltage standardization across multiple designs is preferred. Physical package dimensions remain compatible.

Q: What is the advantage of UCD1E151MNL1GS over the baseline UWD1E151MCL1GS?

A: UCD1E151MNL1GS provides higher ripple current capability (300 mA @ 120 Hz, 600 mA @ 100 kHz versus 225 mA and 450 mA) and lower impedance (160 mOhms versus 170 mOhms). It maintains 150 µF, 25 V specifications with 5000 Hrs lifetime and includes AEC-Q200 certification. This part is suitable for high-current ripple applications.

Q: Are Panasonic EEE-FK series capacitors compatible with Nichicon UWD series?

A: Yes. EEE-FK1E151AP and EEE-FK1E151P are cross-manufacturer equivalents with matching 150 µF, 25 V specifications and compatible package dimensions (8.00 mm diameter, 8.30 × 8.30 mm land size). Both carry AEC-Q200 certification. Lifetime rating is 2000 Hrs @ 105°C, which is lower than the baseline 5000 Hrs. These parts are suitable for applications where cross-manufacturer sourcing is required.

Q: What does MSL 1 (Unlimited) mean for moisture sensitivity?

A: MSL 1 indicates the component has unlimited shelf life without moisture bake-out requirements. The part can be stored and handled under standard conditions without special moisture control procedures. This applies to all listed substitute parts except UCD1E151MNL1GS, which is listed as Not Applicable (indicating automotive-grade handling protocols may apply).

Q: Can UCL1E151MNL1GS be used as a substitute despite lower lifetime rating?

A: UCL1E151MNL1GS is electrically compatible (150 µF, 25 V, 8.00 mm diameter, 8.30 × 8.30 mm land size) but has a 2000 Hrs @ 105°C lifetime versus the baseline 5000 Hrs. This part is suitable only for applications where the reduced lifetime does not impact system reliability requirements. The lower impedance (80 mOhms) and higher ripple current (425 mA @ 120 Hz, 850 mA @ 100 kHz) may provide performance benefits in specific circuit designs.

Q: Which substitute part should I select for automotive applications?

A: For automotive applications, select parts with AEC-Q200 certification: UUD1E151MNL1GS, UUD1V151MNL1GS, UCD1E151MNL1GS, EEE-FK1E151AP, or EEE-FK1E151P. UUD1E151MNL1GS is the primary automotive equivalent to the baseline UWD1E151MCL1GS, offering identical electrical specifications with automotive qualification.

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