478HSM010M Equivalent & Substitute Parts

Part Overview

The Cornell Dubilier/Illinois Capacitor 478HSM010M is a 4700 µF, 10 V aluminum electrolytic capacitor in radial, can package configuration. This component is classified as obsolete, necessitating identification of active equivalent and substitute parts for ongoing design support and procurement. The 478HSM010M operates across a temperature range of -40°C to 125°C with a rated lifetime of 2000 hours at 125°C, serving general-purpose applications requiring moderate capacitance and voltage ratings in through-hole mounting configurations.

Key Parameters

Parameter	Value
Capacitance	4700 µF
Voltage Rating	10 V
Tolerance	±20%
Package Type	Radial, Can
Mounting Type	Through Hole
Lead Spacing	0.295" (7.50 mm)
Case Diameter	0.630" (16.00 mm)
Operating Temperature Range	-40°C to 125°C
Polarization	Polar
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution of the 478HSM010M is determined by strict equivalence across the following critical parameters: capacitance value (4700 µF), voltage rating (10 V), tolerance (±20%), package type (radial, can), mounting type (through hole), lead spacing (0.295" / 7.50 mm), and case diameter (0.630" / 16.00 mm). These parameters establish mechanical and electrical compatibility within the original circuit design.

Substitute parts are grouped into three categories based on their relationship to the original specification:

Direct Equivalents maintain all critical parameters with identical or compatible physical dimensions and electrical ratings at 10 V.

Upgrade Substitutes provide enhanced performance characteristics such as extended lifetime ratings, improved impedance specifications, or extended temperature operating ranges, while maintaining core electrical and mechanical compatibility.

Similar Alternatives share the same capacitance and voltage ratings but may exhibit variations in physical dimensions or packaging format that require board-level verification.

Parameter Comparison

Part Number	Manufacturer	Capacitance	Voltage	Tolerance	Lifetime @ 125°C	Case Diameter	Height (Max)	Lead Spacing	Product Status	RoHS Status
478HSM010M	Cornell Dubilier / Illinois Capacitor	4700 µF	10 V	±20%	2000 Hrs	0.630" (16.00 mm)	1.299" (33.00 mm)	0.295" (7.50 mm)	Obsolete	Not Specified
EEU-TA1A472	Panasonic Electronic Components	4700 µF	10 V	±20%	2000 Hrs	0.630" (16.00 mm)	1.319" (33.50 mm)	0.295" (7.50 mm)	Active	ROHS3 Compliant
EGXE100ELL472MLN3S	Chemi-Con	4700 µF	10 V	±20%	5000 Hrs	0.630" (16.00 mm)	1.319" (33.50 mm)	0.295" (7.50 mm)	Active	ROHS3 Compliant
MAL214054472E3	Vishay Beyschlag/Draloric/BC Components	4700 µF	10 V	±20%	4000 Hrs	0.630" (16.00 mm)	1.319" (33.50 mm)	0.295" (7.50 mm)	Active	ROHS3 Compliant
MAL214064472E3	Vishay Beyschlag/Draloric/BC Components	4700 µF	10 V	±20%	4000 Hrs	0.630" (16.00 mm)	1.319" (33.50 mm)	0.295" (7.50 mm)	Active	ROHS3 Compliant
MAL214695475E3	Vishay Beyschlag/Draloric/BC Components	4700 µF	16 V	±20%	6000 Hrs	0.630" (16.00 mm)	1.319" (33.50 mm)	0.295" (7.50 mm)	Active	ROHS3 Compliant
UBT1A472MHD8	Nichicon	4700 µF	10 V	±20%	10000 Hrs	0.630" (16.00 mm)	1.319" (33.50 mm)	0.295" (7.50 mm)	Active	ROHS3 Compliant
UBW1A472MHD	Nichicon	4700 µF	10 V	±20%	3000 Hrs @ 135°C	0.630" (16.00 mm)	1.319" (33.50 mm)	0.295" (7.50 mm)	Active	ROHS3 Compliant
EEU-TA1A472SB	Panasonic Electronic Components	4700 µF	10 V	±20%	2000 Hrs	0.709" (18.00 mm)	1.063" (27.00 mm)	0.295" (7.50 mm)	Active	ROHS3 Compliant

Engineering Selection Recommendations

Direct Equivalent Selection:

The EEU-TA1A472 (Panasonic) serves as the primary direct equivalent to the 478HSM010M. This part maintains identical capacitance, voltage rating, tolerance, and lead spacing specifications. The marginal height increase (0.020" / 0.50 mm) is within typical PCB layout tolerances for through-hole radial capacitors. The part is active in production with ROHS3 compliance.

Upgrade Substitute Selection:

For applications requiring extended operational lifetime, the UBT1A472MHD8 (Nichicon) provides a 5× improvement in rated lifetime (10,000 hours at 125°C versus 2,000 hours), maintaining identical electrical and mechanical specifications. This part is active with ROHS3 compliance and automotive-grade qualification.

The EGXE100ELL472MLN3S (Chemi-Con) offers a 2.5× lifetime extension (5,000 hours at 125°C) with AEC-Q200 automotive qualification and ROHS3 compliance, suitable for applications requiring enhanced reliability.

The MAL214054472E3 and MAL214064472E3 (Vishay) both provide 4,000-hour lifetime ratings with extended operating temperature range (-55°C to 125°C) and ROHS3 compliance.

Voltage Upgrade Consideration:

The MAL214695475E3 (Vishay) operates at 16 V rating with 6,000-hour lifetime and AEC-Q200 automotive qualification. This part is electrically compatible in 10 V circuits due to voltage derating principles but introduces a different voltage specification that requires circuit design verification.

Dimensional Variation:

The EEU-TA1A472SB (Panasonic) exhibits different physical dimensions (0.709" diameter, 1.063" height) compared to the original specification. This part requires PCB layout verification before implementation.

Frequently Asked Questions (FAQ)

Q: Can the EEU-TA1A472 directly replace the 478HSM010M without PCB modification?

A: The EEU-TA1A472 maintains identical lead spacing (0.295" / 7.50 mm) and case diameter (0.630" / 16.00 mm). The height difference of 0.020" (0.50 mm) is within standard PCB clearance tolerances for radial through-hole capacitors. Direct substitution is supported without PCB modification.

Q: What is the significance of the lifetime rating difference between substitute parts?

A: Lifetime ratings specify the operational duration at maximum rated temperature (125°C or 135°C) before capacitance degradation exceeds specified tolerance limits. Extended lifetime ratings indicate improved thermal stability and electrolyte formulation. Selection depends on application duty cycle and thermal environment.

Q: Is the MAL214695475E3 (16 V rating) suitable for 10 V circuit applications?

A: The MAL214695475E3 is electrically compatible in circuits rated for 10 V operation due to voltage derating. However, the 16 V specification represents a different component series. Substitution requires verification that the higher voltage rating does not introduce unintended circuit behavior or compliance conflicts.

Q: What does ROHS3 compliance indicate?

A: ROHS3 compliance certifies that the component meets Restriction of Hazardous Substances Directive requirements, restricting lead, cadmium, mercury, hexavalent chromium, and specified brominated flame retardants. All active substitute parts listed carry ROHS3 certification.

Q: How do impedance and ESR specifications affect substitution decisions?

A: Equivalent Series Resistance (ESR) and impedance values determine ripple current handling capability and frequency response characteristics. The original 478HSM010M specifies 99 mOhm ESR at 120 Hz. Substitute parts with lower impedance values (20-30 mOhms) provide improved high-frequency performance and reduced thermal dissipation.

Q: Can the EEU-TA1A472SB be used as a substitute despite dimensional differences?

A: The EEU-TA1A472SB maintains identical lead spacing but exhibits different case diameter (0.709" versus 0.630") and height (1.063" versus 1.299"). PCB layout verification is required to confirm clearance compatibility before implementation.

Q: What is the difference between Bulk and Tape & Box packaging?

A: Bulk packaging indicates loose component supply suitable for manual assembly or reel-fed automated processes. Tape & Box (TB) packaging indicates components supplied on carrier tape within a box, optimized for automated pick-and-place assembly equipment. Electrical and mechanical specifications remain identical; packaging selection depends on assembly process requirements.

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