UCS2C151MHD Equivalent & Substitute Parts

Part Overview

The UCS2C151MHD is a 150 µF, 160 V aluminum electrolytic capacitor in radial, can package manufactured by Nichicon. This component is rated for 10000 hours at 105°C and is designed for general purpose applications requiring reliable energy storage and filtering in power supply circuits. The part is currently active in production with full RoHS3 compliance.

Substitute parts are necessary when the original UCS2C151MHD becomes unavailable due to supply constraints, end-of-life status, or when design requirements allow for alternative components with equivalent or superior electrical and mechanical characteristics.

Key Parameters

Parameter	Value
Capacitance	150 µF
Voltage - Rated	160 V
Tolerance	±20%
Operating Temperature Range	-40°C ~ 105°C
Lifetime @ Temperature	10000 Hrs @ 105°C
Ripple Current @ 120 Hz	945 mA
Ripple Current @ 100 kHz	1.89 A
Lead Spacing	0.295" (7.50 mm)
Diameter	0.630" (16.00 mm)
Height - Seated (Max)	0.846" (21.50 mm)
Mounting Type	Through Hole
Package / Case	Radial, Can
Polarization	Polar

Substitute Part Grouping Explanation

Substitution of the UCS2C151MHD is permissible when the replacement component maintains electrical equivalence across the following critical parameters:

Capacitance value: 150 µF (±20% tolerance acceptable)
Rated voltage: 160 V or higher
Operating temperature range: -40°C ~ 105°C minimum
Ripple current ratings: 945 mA @ 120 Hz and 1.89 A @ 100 kHz minimum
Physical form factor: Radial, can package with 0.295" (7.50 mm) lead spacing
Mechanical dimensions: 0.630" diameter (16.00 mm) and 0.846" height (21.50 mm) maximum

The UCY2C151MHD3 meets all electrical and mechanical requirements for direct substitution. This part is manufactured by Nichicon in the UCY series and provides enhanced lifetime performance of 12000 hours at 105°C compared to the original 10000 hours.

Parameter Comparison

Parameter	UCS2C151MHD	UCY2C151MHD3
Manufacturer	Nichicon	Nichicon
Capacitance	150 µF	150 µF
Voltage - Rated	160 V	160 V
Tolerance	±20%	±20%
Operating Temperature	-40°C ~ 105°C	-40°C ~ 105°C
Lifetime @ 105°C	10000 Hrs	12000 Hrs
Ripple Current @ 120 Hz	945 mA	945 mA
Ripple Current @ 100 kHz	1.89 A	1.89 A
Lead Spacing	0.295" (7.50 mm)	0.295" (7.50 mm)
Diameter	0.630" (16.00 mm)	0.630" (16.00 mm)
Height - Seated (Max)	0.846" (21.50 mm)	0.846" (21.50 mm)
Mounting Type	Through Hole	Through Hole
Package / Case	Radial, Can	Radial, Can
Polarization	Polar	Polar
RoHS Status	ROHS3 Compliant	ROHS3 Compliant
ECCN	EAR99	EAR99
HTSUS	8532.22.0020	8532.22.0020

Engineering Selection Recommendations

The UCY2C151MHD3 is a direct functional equivalent to the UCS2C151MHD with superior reliability characteristics. Both components are manufactured by Nichicon, maintain identical electrical specifications, and are housed in the same physical package. The UCY2C151MHD3 provides 20% extended lifetime (12000 hours versus 10000 hours at 105°C), making it suitable for applications requiring enhanced long-term performance.

Both parts maintain full RoHS3 compliance and carry identical ECCN and HTSUS classifications. The UCY2C151MHD3 is classified as REACH Affected, whereas the UCS2C151MHD is REACH Unaffected. This distinction must be evaluated based on application requirements and regulatory obligations in the end-use market.

Selection between these components should be based on supply availability, cost considerations, and whether the extended lifetime of the UCY2C151MHD3 provides value for the intended application.

Frequently Asked Questions (FAQ)

Q: Can the UCY2C151MHD3 be used as a direct replacement for the UCS2C151MHD on existing PCBs?

A: Yes. Both components share identical lead spacing (0.295" / 7.50 mm), diameter (0.630" / 16.00 mm), and maximum height (0.846" / 21.50 mm). No PCB modifications are required for substitution.

Q: What is the difference between the UCS and UCY series?

A: Both are Nichicon aluminum electrolytic capacitors with identical electrical ratings for this part number. The UCY series provides extended lifetime performance (12000 hours at 105°C versus 10000 hours).

Q: Are there any compliance differences between these parts?

A: Both parts are RoHS3 compliant and carry the same ECCN (EAR99) and HTSUS (8532.22.0020) classifications. The UCY2C151MHD3 is REACH Affected while the UCS2C151MHD is REACH Unaffected. Verify REACH compliance requirements for your specific application and end-use market.

Q: Will substituting the UCY2C151MHD3 affect circuit performance?

A: No. Electrical parameters including capacitance (150 µF), rated voltage (160 V), ripple current ratings (945 mA @ 120 Hz, 1.89 A @ 100 kHz), and operating temperature range (-40°C ~ 105°C) are identical. The extended lifetime does not alter functional performance.

Q: What inventory levels are available?

A: The UCS2C151MHD has 707 pieces in stock. The UCY2C151MHD3 has 1290 pieces in stock. Both are available as new original components in bulk packaging.

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