USF1C150MDD Equivalent & Substitute Parts

Part Overview

The Nichicon USF1C150MDD is a 15 µF, 16 V aluminum electrolytic capacitor in radial, can package with through-hole mounting. This component is rated for 1000 hours at 105°C and is classified as obsolete. Due to its obsolete status, equivalent and substitute parts from active product lines are necessary to maintain design continuity and ensure long-term component availability for new production and field replacements.

Key Parameters

Parameter	Value
Capacitance	15 µF
Voltage Rating	16 V
Tolerance	±20%
Polarization	Polar
Lifetime @ Temperature	1000 Hrs @ 105°C
Operating Temperature Range	-55°C ~ 105°C
Package Type	Radial, Can
Mounting Type	Through Hole
Lead Spacing	0.059" (1.50mm)
Size / Dimension	0.157" Dia (4.00mm)
Height - Seated (Max)	0.315" (8.00mm)
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution for the USF1C150MDD is determined by the following critical parameters: capacitance value (15 µF), voltage rating (minimum 16 V), tolerance (±20%), polarization (polar), package type (radial, can), and mounting type (through hole). The substitute parts are grouped into two categories:

Direct Equivalents (Same Electrical Specifications): Parts that maintain identical capacitance, voltage rating, tolerance, and physical package dimensions. These parts are pin-compatible and can be used as direct replacements without circuit modification.

Functional Equivalents (Enhanced Specifications): Parts that exceed the original specifications in voltage rating, lifetime, or ripple current capability while maintaining the same capacitance, tolerance, and package compatibility. These parts provide improved performance margins and are suitable for applications requiring higher reliability or thermal performance.

Parameter Comparison

Part Number	Manufacturer	Capacitance	Voltage Rating	Tolerance	Lifetime @ 105°C	Lead Spacing	Size / Dimension	Height (Max)	Product Status
USF1C150MDD	Nichicon	15 µF	16 V	±20%	1000 Hrs	0.059" (1.50mm)	0.157" Dia (4.00mm)	0.315" (8.00mm)	Obsolete
EEA-FC1C150H	Panasonic	15 µF	16 V	±20%	1000 Hrs	0.098" (2.50mm)	0.157" Dia (4.00mm)	0.315" (8.00mm)	Active
EEA-FC1C150B	Panasonic	15 µF	16 V	±20%	1000 Hrs	0.197" (5.00mm)	0.157" Dia (4.00mm)	0.374" (9.50mm)	Active
EEA-FC1C150	Panasonic	15 µF	16 V	±20%	1000 Hrs	0.059" (1.50mm)	0.157" Dia (4.00mm)	0.315" (8.00mm)	Active
RNS1D150MDS1	Nichicon	15 µF	20 V	±20%	2000 Hrs	0.098" (2.50mm)	0.248" Dia (6.30mm)	0.315" (8.00mm)	Active
UPM1H150MDD	Nichicon	15 µF	50 V	±20%	2000 Hrs	0.079" (2.00mm)	0.197" Dia (5.00mm)	0.492" (12.50mm)	Obsolete

Engineering Selection Recommendations

For Direct Pin-Compatible Replacement: Select EEA-FC1C150 (Panasonic). This part maintains identical electrical specifications (15 µF, 16 V, ±20%, 1000 Hrs @ 105°C) and physical dimensions (0.059" lead spacing, 0.157" diameter, 0.315" height) as the USF1C150MDD. The part is active and carries AEC-Q200 automotive qualification and ROHS3 compliance.

For Lead Spacing Accommodation: If PCB layout requires alternative lead spacing, EEA-FC1C150H (2.50mm lead spacing) or EEA-FC1C150B (5.00mm lead spacing) are available from Panasonic with identical electrical performance and active product status.

For Enhanced Reliability: RNS1D150MDS1 (Nichicon polymer aluminum capacitor) provides 20 V voltage rating and 2000-hour lifetime at 105°C, offering improved thermal performance and ripple current capability (170 mA @ 120 Hz vs. 35 mA for the original). This part requires PCB layout verification due to different lead spacing (0.098") and larger diameter (0.248").

For Higher Voltage Margin: UPM1H150MDD (Nichicon) provides 50 V rating with 2000-hour lifetime, suitable for applications requiring significant voltage derating. This part requires PCB layout verification due to increased height (0.492") and different lead spacing (0.079").

All recommended active parts carry ROHS3 compliance and REACH unaffected status, meeting current regulatory requirements.

Frequently Asked Questions (FAQ)

Q: Can EEA-FC1C150 directly replace USF1C150MDD without PCB modification?

A: Yes. EEA-FC1C150 maintains identical lead spacing (0.059" / 1.50mm), diameter (0.157" / 4.00mm), and height (0.315" / 8.00mm). Electrical specifications are identical: 15 µF, 16 V, ±20% tolerance, 1000 Hrs @ 105°C. No PCB layout changes are required.

Q: What is the difference between EEA-FC1C150, EEA-FC1C150H, and EEA-FC1C150B?

A: All three parts are Panasonic FC series with identical electrical specifications (15 µF, 16 V, ±20%, 1000 Hrs @ 105°C). The differences are in lead spacing and height: EEA-FC1C150 has 0.059" lead spacing and 0.315" height; EEA-FC1C150H has 0.098" lead spacing and 0.315" height; EEA-FC1C150B has 0.197" lead spacing and 0.374" height. Selection depends on PCB hole pattern requirements.

Q: Why would I select RNS1D150MDS1 instead of a direct equivalent?

A: RNS1D150MDS1 is a polymer aluminum capacitor with enhanced specifications: 20 V rating (vs. 16 V), 2000-hour lifetime (vs. 1000 hours), and significantly higher ripple current (170 mA @ 120 Hz vs. 35 mA). This part is suitable for applications requiring improved thermal stability or higher ripple current handling. PCB layout verification is required due to different lead spacing and diameter.

Q: Is UPM1H150MDD suitable as a substitute?

A: UPM1H150MDD provides 50 V rating and 2000-hour lifetime, offering substantial voltage and thermal margin. However, this part is obsolete and has different physical dimensions (0.492" height vs. 0.315", 0.079" lead spacing vs. 0.059"). Use only if PCB layout accommodates the larger package and lead spacing changes.

Q: Are all recommended parts RoHS3 compliant?

A: Yes. All active substitute parts (EEA-FC1C150, EEA-FC1C150H, EEA-FC1C150B, and RNS1D150MDS1) are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements for new production.

Q: What is the ripple current difference between the original and substitutes?

A: USF1C150MDD is rated for 35 mA @ 120 Hz. EEA-FC1C150 series parts are rated for 42.25 mA @ 120 Hz. RNS1D150MDS1 (polymer type) is rated for 170 mA @ 120 Hz, providing significantly higher ripple current capability. UPM1H150MDD is rated for 72 mA @ 120 Hz. Selection depends on circuit ripple current requirements.

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