UST1V100MDD Equivalent & Substitute Parts

Part Overview

The UST1V100MDD is a 10 µF, 35 V aluminum electrolytic capacitor in radial, can package manufactured by Nichicon. This component is rated for 1000 hours at 105°C and is designed for general-purpose applications. The part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement.

Key Parameters

Parameter	Value
Capacitance	10 µF
Voltage Rating	35 V
Tolerance	±20%
Lifetime @ Temperature	1000 Hrs @ 105°C
Operating Temperature Range	-55°C ~ 105°C
Polarization	Polar
Mounting Type	Through Hole
Package Type	Radial, Can
Lead Spacing	0.079" (2.00mm)
Diameter	0.197" (5.00mm)
Height	0.315" (8.00mm)
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution for the UST1V100MDD is determined by strict equivalence across the following critical parameters:

Capacitance: 10 µF (exact match required)
Voltage Rating: 35 V (exact match required)
Tolerance: ±20% (exact match required)
Operating Temperature Range: -55°C ~ 105°C (exact match required)
Polarization: Polar (exact match required)
Package Type: Radial, Can (exact match required)
Mounting Type: Through Hole (exact match required)
Lead Spacing: 0.079" (2.00mm) (exact match required)
Diameter: 0.197" (5.00mm) (exact match required)

Substitute parts are categorized as follows:

Similar Substitutes (Nichicon Series): UPS1V100MDD and UPW1V100MDD meet all critical electrical and mechanical parameters. These parts offer extended lifetime ratings (2000 Hrs @ 105°C) compared to the original part, with variations in ripple current handling and impedance characteristics.

Surface Mount Alternative (Nichicon Series): UWT1V100MCL1GB provides equivalent electrical specifications in a surface mount package format, suitable for automated assembly processes.

Direct Equivalents (Panasonic GA-A Series): EEA-GA1V100, EEA-GA1V100B, and EEA-GA1V100H are manufactured by Panasonic and meet all critical parameters. These parts are active products with established supply chains. Lead spacing variations exist (0.079", 0.197", and 0.098" respectively) and must be verified against PCB layout requirements.

Parametric Equivalent (Chemi-Con Series): EKMG350ELL100ME11D and EKMA350ELL100ME07D are manufactured by Chemi-Con and satisfy all core electrical and mechanical requirements. Height variations (0.492" and 0.315" respectively) must be confirmed for space-constrained applications.

Parameter Comparison

Part Number	Manufacturer	Capacitance	Voltage	Tolerance	Lifetime @ 105°C	Operating Temp	Mounting	Package	Lead Spacing	Diameter	Height	Product Status
UST1V100MDD	Nichicon	10 µF	35 V	±20%	1000 Hrs	-55°C ~ 105°C	Through Hole	Radial, Can	0.079" (2.00mm)	0.197" (5.00mm)	0.315" (8.00mm)	Obsolete
UPS1V100MDD	Nichicon	10 µF	35 V	±20%	2000 Hrs	-55°C ~ 105°C	Through Hole	Radial, Can	0.079" (2.00mm)	0.197" (5.00mm)	0.492" (12.50mm)	Obsolete
UPW1V100MDD	Nichicon	10 µF	35 V	±20%	2000 Hrs	-55°C ~ 105°C	Through Hole	Radial, Can	0.079" (2.00mm)	0.197" (5.00mm)	0.433" (11.00mm)	Obsolete
UWT1V100MCL1GB	Nichicon	10 µF	35 V	±20%	1000 Hrs	-55°C ~ 105°C	Surface Mount	Radial, Can - SMD	N/A	0.197" (5.00mm)	0.213" (5.40mm)	Active
EEA-GA1V100	Panasonic	10 µF	35 V	±20%	1000 Hrs	-55°C ~ 105°C	Through Hole	Radial, Can	0.079" (2.00mm)	0.197" (5.00mm)	0.276" (7.00mm)	Active
EEA-GA1V100B	Panasonic	10 µF	35 V	±20%	1000 Hrs	-55°C ~ 105°C	Through Hole	Radial, Can	0.197" (5.00mm)	0.197" (5.00mm)	0.276" (7.00mm)	Active
EEA-GA1V100H	Panasonic	10 µF	35 V	±20%	1000 Hrs	-55°C ~ 105°C	Through Hole	Radial, Can	0.098" (2.50mm)	0.197" (5.00mm)	0.276" (7.00mm)	Active
EKMG350ELL100ME11D	Chemi-Con	10 µF	35 V	±20%	1000 Hrs	-55°C ~ 105°C	Through Hole	Radial, Can	0.079" (2.00mm)	0.197" (5.00mm)	0.492" (12.50mm)	Active
EKMA350ELL100ME07D	Chemi-Con	10 µF	35 V	±20%	1000 Hrs	-55°C ~ 105°C	Through Hole	Radial, Can	0.079" (2.00mm)	0.197" (5.00mm)	0.315" (8.00mm)	Obsolete

Engineering Selection Recommendations

For Direct Replacement with Minimal PCB Modification: EEA-GA1V100 (Panasonic) is the preferred choice. This part is active, ROHS3 compliant, and matches the original height specification (0.276" vs. 0.315"). The 0.079" lead spacing is identical to the UST1V100MDD, requiring no PCB layout changes.

For Extended Operational Life: UPS1V100MDD or UPW1V100MDD (Nichicon) provide doubled lifetime ratings (2000 Hrs @ 105°C). These parts are suitable for applications requiring enhanced reliability. Height differences must be verified against available PCB clearance.

For Surface Mount Assembly: UWT1V100MCL1GB (Nichicon) is an active product suitable for automated assembly processes. This part maintains equivalent electrical specifications and is ROHS3 compliant with MSL rating of 1 (Unlimited).

For Space-Constrained Applications: EEA-GA1V100 or EEA-GA1V100H (Panasonic) offer the lowest profile heights (0.276" and 0.276" respectively). Lead spacing differences must be accommodated in PCB design.

For Parametric Equivalence with Established Supply: EKMG350ELL100ME11D (Chemi-Con) is an active product meeting all electrical and mechanical specifications. This part is suitable for applications where Chemi-Con supply chain is preferred.

All recommended substitutes are ROHS3 compliant and REACH unaffected, maintaining regulatory compliance with the original part.

Frequently Asked Questions (FAQ)

Q: Can I use UPS1V100MDD as a direct replacement for UST1V100MDD? A: UPS1V100MDD meets all critical electrical parameters (10 µF, 35 V, ±20%, -55°C ~ 105°C) and mechanical specifications (0.079" lead spacing, 0.197" diameter, radial through-hole package). However, the height is 0.492" compared to 0.315" for the original part. PCB clearance must be verified before substitution.

Q: What is the difference between EEA-GA1V100, EEA-GA1V100B, and EEA-GA1V100H? A: All three Panasonic parts are electrically identical (10 µF, 35 V, ±20%, 1000 Hrs @ 105°C). The differences are in lead spacing: EEA-GA1V100 uses 0.079" spacing, EEA-GA1V100B uses 0.197" spacing, and EEA-GA1V100H uses 0.098" spacing. PCB layout determines which variant is appropriate.

Q: Is UWT1V100MCL1GB compatible with through-hole PCB designs? A: No. UWT1V100MCL1GB is a surface mount component (SMD package). It is not compatible with through-hole PCB designs. This part is suitable only for automated surface mount assembly processes.

Q: Why are some substitute parts listed as obsolete? A: UPS1V100MDD, UPW1V100MDD, and EKMA350ELL100ME07D are classified as obsolete by their manufacturers. However, inventory remains available from authorized distributors. For new designs, active products such as EEA-GA1V100 (Panasonic) or EKMG350ELL100ME11D (Chemi-Con) are recommended.

Q: Do all substitute parts meet RoHS3 compliance? A: Yes. All substitute parts listed are ROHS3 compliant and REACH unaffected, maintaining regulatory compliance with the original UST1V100MDD.

Q: What is the impact of height differences on PCB design? A: Height variations range from 0.213" (UWT1V100MCL1GB) to 0.492" (UPS1V100MDD). Verify available vertical clearance on the PCB. Taller components may require design modifications to accommodate component placement and assembly processes.

Q: Can I substitute based on capacitance and voltage alone? A: No. Substitution requires matching all critical parameters: capacitance (10 µF), voltage (35 V), tolerance (±20%), operating temperature range (-55°C ~ 105°C), polarization (polar), package type (radial, can), mounting type (through hole for PCB compatibility), and lead spacing. Deviations in any parameter may result in functional or mechanical incompatibility.

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