UCD0J101MCL6GS Equivalent & Substitute Parts

Part Overview

The UCD0J101MCL6GS is a 100 µF, 6.3 V aluminum electrolytic capacitor manufactured by Nichicon in the UCD series. This surface mount component is rated for 2000 hours at 105°C and meets AEC-Q200 automotive qualification standards. The part is currently active in production with 3728 units in stock.

Substitute parts are necessary when the original component becomes unavailable, when design requirements change, or when alternative manufacturers offer improved performance characteristics within the same electrical and mechanical specifications.

Key Parameters

Parameter	Value
Capacitance	100 µF
Voltage Rating	6.3 V
Tolerance	±20%
Lifetime @ Temperature	2000 Hrs @ 105°C
Operating Temperature Range	-55°C ~ 105°C
Package Type	Radial, Can - SMD
Mounting Type	Surface Mount
Size / Dimension	0.197" Dia (5.00mm)
Height - Seated (Max)	0.240" (6.10mm)
Surface Mount Land Size	0.209" L x 0.209" W (5.30mm x 5.30mm)
RoHS Status	ROHS3 Compliant
AEC-Q200 Rating	Yes

Substitute Part Grouping Explanation

Substitution of the UCD0J101MCL6GS is determined by the following critical parameters:

Electrical Compatibility:

Capacitance: 100 µF (exact match required)
Voltage Rating: 6.3 V minimum (higher voltage ratings are acceptable as upgrades)
Tolerance: ±20% (standard tolerance for aluminum electrolytic capacitors)
Operating Temperature: -55°C ~ 105°C (minimum requirement)
Lifetime: 2000 Hrs @ 105°C (minimum requirement for automotive applications)

Mechanical Compatibility:

Package Type: Radial, Can - SMD (surface mount only)
Mounting Type: Surface Mount
Size / Dimension: 0.197" Dia (5.00mm) or compatible footprint
Height - Seated (Max): 0.240" (6.10mm) or less
Surface Mount Land Size: 0.209" L x 0.209" W (5.30mm x 5.30mm) or compatible

Compliance & Certification:

RoHS3 Compliant (required)
AEC-Q200 Rating (required for automotive applications)

Substitute parts are grouped into three categories:

Direct Equivalents: Identical electrical and mechanical specifications, same manufacturer (Nichicon series variants)
Upgraded Substitutes: Higher voltage rating (16 V) with same capacitance and footprint, providing enhanced reliability margin
Cross-Manufacturer Equivalents: Alternative manufacturers (Panasonic) meeting identical electrical and mechanical requirements

Parameter Comparison

Part Number	Manufacturer	Capacitance	Voltage	Lifetime @ 105°C	Size Dia	Height Max	Impedance	Product Status	AEC-Q200
UCD0J101MCL6GS	Nichicon	100 µF	6.3 V	2000 Hrs	5.00mm	6.10mm	700 mOhms	Active	Yes
UCM1C101MCL1GS	Nichicon	100 µF	16 V	2000 Hrs	5.00mm	6.10mm	360 mOhms	Active	Yes
UCL0J101MCL1GS	Nichicon	100 µF	6.3 V	2000 Hrs	6.30mm	5.80mm	260 mOhms	Active	No
UCL0J101MCL6GS	Nichicon	100 µF	6.3 V	2000 Hrs	5.00mm	5.80mm	360 mOhms	Active	No
UUD0J101MCL1GS	Nichicon	100 µF	6.3 V	2000 Hrs	6.30mm	6.10mm	440 mOhms	Active	Yes
UWD0J101MCL1GS	Nichicon	100 µF	6.3 V	2000 Hrs	6.30mm	5.80mm	440 mOhms	Active	No
UWF0J101MCL1GB	Nichicon	100 µF	6.3 V	1000 Hrs	6.30mm	5.50mm	1.3 Ohms	Obsolete	No
UWG0J101MCL1GB	Nichicon	100 µF	6.3 V	1000 Hrs	6.30mm	5.40mm	1 Ohm	Active	Yes
EEE-FPJ101UAR	Panasonic	100 µF	6.3 V	2000 Hrs	5.00mm	5.80mm	360 mOhms	Active	Yes
EEE-FK1C101SR	Panasonic	100 µF	16 V	2000 Hrs	5.00mm	6.10mm	700 mOhms	Not For New Designs	Yes
EEE-FKJ101UAR	Panasonic	100 µF	6.3 V	2000 Hrs	5.00mm	6.10mm	700 mOhms	Active	Yes

Engineering Selection Recommendations

Tier 1 - Direct Equivalents (Preferred for Drop-In Replacement):

EEE-FKJ101UAR (Panasonic) is the primary cross-manufacturer equivalent. It matches the UCD0J101MCL6GS in all critical parameters: 100 µF capacitance, 6.3 V rating, 2000 hour lifetime at 105°C, identical footprint (5.00mm diameter, 6.10mm height), and AEC-Q200 automotive qualification. Product status is Active, ensuring long-term availability.

Tier 2 - Nichicon Series Variants (Same Manufacturer):

UCL0J101MCL6GS and UCL0J101MCL1GS are Nichicon alternatives with identical electrical specifications but different physical dimensions. UCL0J101MCL6GS maintains the 5.00mm diameter but reduces height to 5.80mm, suitable for space-constrained applications. Both are Active products with 2000 hour lifetime ratings. Note: These parts lack AEC-Q200 certification and are rated for General Purpose applications rather than automotive.

UUD0J101MCL1GS is an automotive-qualified Nichicon alternative (AEC-Q200) with 2000 hour lifetime. It features a larger 6.30mm diameter footprint and 6.10mm height, requiring PCB layout modification. This part is suitable only if space permits the larger package.

Tier 3 - Upgraded Voltage Rating:

UCM1C101MCL1GS (Nichicon) and EEE-FK1C101SR (Panasonic) provide 16 V rating with 100 µF capacitance. These upgrades offer enhanced voltage margin and improved reliability in applications where the 6.3 V rating approaches circuit operating voltage. Both maintain 2000 hour lifetime and AEC-Q200 certification. UCM1C101MCL1GS is Active; EEE-FK1C101SR is marked Not For New Designs.

Tier 4 - Reduced Lifetime (Not Recommended for Automotive):

UWG0J101MCL1GB is an AEC-Q200 qualified part with only 1000 hour lifetime at 105°C, half the original specification. Use only when the reduced lifetime meets application requirements.

UWF0J101MCL1GB is Obsolete and should not be selected for new designs.

Frequently Asked Questions (FAQ)

Q: Can I use a higher voltage rated capacitor as a substitute?

A: Yes. A 16 V rated capacitor (UCM1C101MCL1GS or EEE-FK1C101SR) is electrically compatible with a 6.3 V circuit. Higher voltage ratings provide additional safety margin and typically offer lower impedance. However, verify that the physical footprint matches your PCB layout.

Q: What is the difference between AEC-Q200 and non-AEC-Q200 parts?

A: AEC-Q200 certification indicates the part meets automotive industry reliability and qualification standards. For automotive applications, AEC-Q200 rated parts are required. Non-AEC-Q200 parts (UCL series, UWD series) are suitable only for general purpose applications.

Q: Can I substitute a part with a larger physical size?

A: Only if your PCB layout accommodates the larger footprint. UUD0J101MCL1GS and UWD0J101MCL1GS use 6.30mm diameter packages compared to the original 5.00mm. Verify clearance with surrounding components and solder pad compatibility before selection.

Q: Why do some substitutes have different impedance values?

A: Impedance varies with internal construction and materials. Lower impedance (260-360 mOhms) indicates better high-frequency performance. The original UCD0J101MCL6GS has 700 mOhms impedance. Substitutes with lower impedance (UCL0J101MCL1GS at 260 mOhms, EEE-FPJ101UAR at 360 mOhms) provide improved ripple current handling.

Q: Is the UWF0J101MCL1GB still available?

A: No. UWF0J101MCL1GB is marked Obsolete and should not be used for new designs. Select from Active status parts only.

Q: What does "Not For New Designs" mean for EEE-FK1C101SR?

A: This status indicates Panasonic is phasing out this part number. While currently available in inventory (6062 units), it is not recommended for new product designs. Use EEE-FKJ101UAR or UCM1C101MCL1GS instead.

Q: Are all substitutes RoHS3 compliant?

A: Yes. All listed substitute parts are RoHS3 compliant, matching the original UCD0J101MCL6GS specification.

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