Equivalent & Substitute Parts for UCY2C151MHD

Part Overview

The UCY2C151MHD is a 150 µF, 160 V aluminum electrolytic capacitor in radial, can package manufactured by Nichicon. This component is classified as Active product status and is designed for general purpose applications requiring reliable energy storage and filtering in power supply circuits. The need to identify equivalent and substitute parts arises from inventory availability, lead time considerations, and manufacturing continuity requirements across different suppliers and packaging configurations.

Key Parameters

Parameter	Value
Capacitance	150 µF
Voltage - Rated	160 V
Tolerance	±20%
Operating Temperature Range	-40°C ~ 105°C
Polarization	Polar
Mounting Type	Through Hole
Package / Case	Radial, Can
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the UCY2C151MHD is determined by the following core electrical and mechanical parameters:

Electrical Equivalence Criteria:

Capacitance: 150 µF (exact match required)
Voltage Rating: 160 V (exact match required)
Tolerance: ±20% (exact match required)
Operating Temperature: -40°C ~ 105°C (exact match required)
Polarization: Polar (exact match required)

Mechanical Compatibility Criteria:

Mounting Type: Through Hole (exact match required)
Package / Case: Radial, Can (exact match required)

Compliance Criteria:

RoHS Status: ROHS3 Compliant (required for regulatory alignment)

The substitute parts UCY2C151MHD3 and EKXG161ELL151ML20S meet all electrical equivalence criteria and mechanical compatibility requirements. Variations in physical dimensions (lead spacing, diameter, height) and ripple current ratings do not disqualify substitution when the core parameters align, as these represent design variations within the same functional category.

Parameter Comparison

Parameter	UCY2C151MHD	UCY2C151MHD3	EKXG161ELL151ML20S
Manufacturer	Nichicon	Nichicon	Chemi-Con
Series	UCY	UCY	KXG
Capacitance	150 µF	150 µF	150 µF
Voltage - Rated	160 V	160 V	160 V
Tolerance	±20%	±20%	±20%
Operating Temperature	-40°C ~ 105°C	-40°C ~ 105°C	-40°C ~ 105°C
Polarization	Polar	Polar	Polar
Mounting Type	Through Hole	Through Hole	Through Hole
Package / Case	Radial, Can	Radial, Can	Radial, Can
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Lifetime @ Temp.	12000 Hrs @ 105°C	12000 Hrs @ 105°C	10000 Hrs @ 105°C
Lead Spacing	0.197" (5.00mm)	0.295" (7.50mm)	0.295" (7.50mm)
Size / Dimension	0.492" Dia (12.50mm)	0.630" Dia (16.00mm)	0.630" Dia (16.00mm)
Height - Seated (Max)	1.299" (33.00mm)	0.846" (21.50mm)	0.787" (20.00mm)
Ripple Current @ 120 Hz	905 mA	945 mA	770 mA
Ripple Current @ 100 kHz	1.81 A	1.89 A	1.7325 A
Product Status	Active	Active	Active

Engineering Selection Recommendations

All three parts—UCY2C151MHD, UCY2C151MHD3, and EKXG161ELL151ML20S—maintain Active product status and ROHS3 compliance, ensuring regulatory alignment and manufacturing continuity.

UCY2C151MHD3 is a direct Nichicon series substitute with identical electrical specifications and lifetime rating (12000 Hrs @ 105°C). Physical dimensions differ, with larger diameter and reduced height compared to the primary part. Lead spacing increases from 5.00mm to 7.50mm, which may require PCB layout verification for through-hole mounting compatibility.

EKXG161ELL151ML20S is a Chemi-Con KXG series alternative meeting all core electrical requirements. The lifetime rating is 10000 Hrs @ 105°C, representing a 2000-hour reduction compared to Nichicon options. Physical dimensions align with UCY2C151MHD3 (16.00mm diameter, 7.50mm lead spacing). Ripple current performance at 120 Hz is lower (770 mA versus 905 mA for the primary part), which may be a consideration in high-ripple current applications.

Selection between substitutes depends on PCB layout constraints (lead spacing and physical dimensions), required lifetime specifications, and ripple current performance thresholds for the target application.

Frequently Asked Questions (FAQ)

Q: Can UCY2C151MHD3 be used as a direct replacement for UCY2C151MHD?

A: UCY2C151MHD3 is electrically equivalent with identical capacitance, voltage rating, tolerance, and lifetime specifications. However, physical dimensions and lead spacing differ. PCB layout verification is required to confirm through-hole mounting compatibility before substitution.

Q: What is the primary difference between the Nichicon and Chemi-Con options?

A: Both manufacturers provide 150 µF, 160 V radial capacitors meeting core electrical requirements. The Nichicon UCY series (both variants) offers 12000 Hrs @ 105°C lifetime, while the Chemi-Con KXG series provides 10000 Hrs @ 105°C. Physical dimensions and ripple current ratings also differ between manufacturers.

Q: Does EKXG161ELL151ML20S have lower ripple current capability?

A: EKXG161ELL151ML20S exhibits lower ripple current at 120 Hz (770 mA) compared to UCY2C151MHD (905 mA). High-frequency ripple current performance (100 kHz) remains comparable across all three parts. Application-specific ripple current requirements should be evaluated before selection.

Q: Are all three parts RoHS compliant?

A: Yes, all three parts—UCY2C151MHD, UCY2C151MHD3, and EKXG161ELL151ML20S—are ROHS3 Compliant, meeting regulatory requirements for hazardous substance restrictions.

Q: What should I verify before substituting parts with different physical dimensions?

A: Lead spacing (5.00mm versus 7.50mm) and component height (33.00mm versus 20-21.50mm) must be verified against PCB layout and available mounting space. Through-hole pad spacing and clearance to adjacent components require confirmation to ensure mechanical fit and electrical integrity.

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