477HSM025M Equivalent & Substitute Parts

Part Overview

The 477HSM025M is a 470 µF, 25 V aluminum electrolytic capacitor in radial, can package manufactured by Cornell Dubilier / Illinois Capacitor. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and production continuity. The part 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 through-hole radial capacitor mounting.

Key Parameters

Parameter	Value
Capacitance	470 µF
Voltage Rating	25 V
Tolerance	±20%
Package Type	Radial, Can
Mounting Type	Through Hole
Lead Spacing	0.197" (5.00 mm)
Diameter	0.394" (10.00 mm)
Height (Maximum)	0.846" (21.50 mm)
Operating Temperature Range	-40°C to 125°C
Lifetime at Temperature	2000 Hrs @ 125°C
Polarization	Polar

Substitute Part Grouping Explanation

Substitution of the 477HSM025M is determined by the following critical parameters: capacitance value (470 µF), voltage rating, tolerance (±20%), package configuration (radial, can), mounting type (through-hole), and physical dimensions (lead spacing, diameter, and height). Substitute parts are grouped into two categories based on voltage rating compatibility:

Direct Equivalents (25 V Rating): Parts maintaining the original 25 V voltage specification with identical capacitance, tolerance, and package dimensions. These parts are pin-compatible and electrically equivalent for circuits designed for 25 V operation.

Upgraded Substitutes (35 V Rating): Parts with elevated voltage ratings (35 V) that maintain the same 470 µF capacitance, ±20% tolerance, and physical package dimensions. These parts are mechanically and electrically compatible with 25 V circuit designs while providing enhanced voltage margin and improved performance characteristics in many cases.

Parameter Comparison

Part Number	Manufacturer	Capacitance	Voltage	Tolerance	Lifetime @ Temp	Operating Temp Range	Lead Spacing	Diameter	Height (Max)	Product Status
477HSM025M	Cornell Dubilier / Illinois Capacitor	470 µF	25 V	±20%	2000 Hrs @ 125°C	-40°C to 125°C	0.197" (5.00 mm)	0.394" (10.00 mm)	0.846" (21.50 mm)	Obsolete
EEU-TA1E471	Panasonic Electronic Components	470 µF	25 V	±20%	2000 Hrs @ 125°C	-40°C to 125°C	0.197" (5.00 mm)	0.394" (10.00 mm)	0.866" (22.00 mm)	Active
B41896C5477M000	EPCOS - TDK Electronics	470 µF	25 V	±20%	3500 Hrs @ 125°C	-55°C to 125°C	0.197" (5.00 mm)	0.394" (10.00 mm)	0.866" (22.00 mm)	Active
EGXL250EC3471MJ20S	Chemi-Con	470 µF	25 V	±20%	5000 Hrs @ 125°C	-40°C to 125°C	0.197" (5.00 mm)	0.394" (10.00 mm)	0.846" (21.50 mm)	Active
EGXL250ELL471MJ20S	Chemi-Con	470 µF	25 V	±20%	5000 Hrs @ 125°C	-40°C to 125°C	0.197" (5.00 mm)	0.394" (10.00 mm)	0.846" (21.50 mm)	Active
MAL214066471E3	Vishay Beyschlag/Draloric/BC Components	470 µF	25 V	±20%	3000 Hrs @ 125°C	-55°C to 125°C	0.197" (5.00 mm)	0.394" (10.00 mm)	0.866" (22.00 mm)	Active
MAL214056471E3	Vishay Beyschlag/Draloric/BC Components	470 µF	25 V	±20%	3000 Hrs @ 125°C	-55°C to 125°C	0.197" (5.00 mm)	0.394" (10.00 mm)	0.866" (22.00 mm)	Active
35RX30470M10X20	Rubycon	470 µF	35 V	±20%	2000 Hrs @ 130°C	-40°C to 130°C	0.197" (5.00 mm)	0.394" (10.00 mm)	0.866" (22.00 mm)	Active
35RX30470MSG10X20	Rubycon	470 µF	35 V	±20%	2000 Hrs @ 130°C	-40°C to 130°C	0.197" (5.00 mm)	0.394" (10.00 mm)	0.866" (22.00 mm)	Active
B41866C7477M000	EPCOS - TDK Electronics	470 µF	35 V	±20%	3000 Hrs @ 125°C	-55°C to 125°C	0.197" (5.00 mm)	0.394" (10.00 mm)	0.866" (22.00 mm)	Active
MAL214650471E3	Vishay Beyschlag/Draloric/BC Components	470 µF	35 V	±20%	3000 Hrs @ 125°C	-55°C to 125°C	0.197" (5.00 mm)	0.394" (10.00 mm)	0.866" (22.00 mm)	Active

Engineering Selection Recommendations

For Direct Replacement (25 V Applications):

The EEU-TA1E471 (Panasonic) and EGXL250EC3471MJ20S / EGXL250ELL471MJ20S (Chemi-Con) are active production parts with identical voltage and capacitance specifications. The Chemi-Con parts offer extended lifetime ratings (5000 hours at 125°C) compared to the original 2000-hour specification. The Panasonic EEU-TA1E471 maintains the original 2000-hour lifetime rating. Both manufacturers provide ROHS3 compliance and REACH compliance status.

The MAL214066471E3 and MAL214056471E3 (Vishay) are active production alternatives with 3000-hour lifetime ratings at 125°C and extended operating temperature range (-55°C to 125°C). These parts are suitable for general-purpose applications.

The B41896C5477M000 (EPCOS - TDK Electronics) provides 3500-hour lifetime at 125°C with AEC-Q200 automotive qualification and extended temperature range (-55°C to 125°C).

For Upgraded Voltage Applications (35 V):

The 35RX30470M10X20 and 35RX30470MSG10X20 (Rubycon) are AEC-Q200 qualified automotive-grade parts with 35 V rating and extended operating temperature to 130°C. These parts maintain identical physical dimensions and lead spacing.

The B41866C7477M000 (EPCOS - TDK Electronics) provides 35 V rating with 3000-hour lifetime at 125°C and AEC-Q200 automotive qualification.

The MAL214650471E3 (Vishay) offers 35 V rating with 3000-hour lifetime at 125°C and AEC-Q200 automotive qualification, with the highest inventory availability (10,189 pieces).

All substitute parts maintain the same 0.197" (5.00 mm) lead spacing and 0.394" (10.00 mm) diameter, ensuring mechanical compatibility with the original 477HSM025M footprint.

Frequently Asked Questions (FAQ)

Q: Can I use a 35 V rated capacitor in place of the 477HSM025M (25 V)?

A: Yes. A 35 V rated capacitor is electrically and mechanically compatible with a 25 V circuit design. The higher voltage rating provides additional safety margin and does not affect circuit operation. All 35 V substitute parts listed maintain identical capacitance (470 µF), tolerance (±20%), lead spacing (5.00 mm), and diameter (10.00 mm).

Q: What is the difference between the Chemi-Con EGXL250EC3471MJ20S and EGXL250ELL471MJ20S?

A: Both parts are 470 µF, 25 V aluminum electrolytic capacitors with identical electrical specifications, lifetime ratings (5000 hours at 125°C), and physical dimensions. They are interchangeable direct substitutes for the 477HSM025M.

Q: Are there height differences between substitute parts?

A: Yes. The original 477HSM025M has a maximum seated height of 0.846" (21.50 mm). The Chemi-Con parts (EGXL250EC3471MJ20S and EGXL250ELL471MJ20S) match this height. Most other substitutes have a maximum seated height of 0.866" (22.00 mm), a difference of 0.020" (0.50 mm). Verify PCB clearance for applications with tight vertical space constraints.

Q: Which substitute parts have automotive qualification?

A: The following parts carry AEC-Q200 automotive qualification: B41896C5477M000 (25 V), 35RX30470M10X20 (35 V), 35RX30470MSG10X20 (35 V), B41866C7477M000 (35 V), EGXL250EC3471MJ20S (25 V), EGXL250ELL471MJ20S (25 V), and MAL214650471E3 (35 V).

Q: What is the lead spacing for all listed parts?

A: All substitute parts maintain the original 0.197" (5.00 mm) lead spacing, ensuring direct PCB footprint compatibility with the 477HSM025M.

Q: Do all substitute parts have the same diameter?

A: Yes. All substitute parts have a diameter of 0.394" (10.00 mm), matching the original 477HSM025M specification.

Q: Which substitute offers the longest lifetime rating?

A: The Chemi-Con parts EGXL250EC3471MJ20S and EGXL250ELL471MJ20S offer the longest lifetime rating at 5000 hours at 125°C, compared to the original 2000-hour specification.

Q: Are all substitute parts RoHS3 compliant?

A: All active production substitute parts listed are RoHS3 compliant. The original 477HSM025M (obsolete) does not have RoHS3 compliance status specified.

Q: What is the operating temperature range of the substitute parts?

A: Most substitute parts operate from -40°C to 125°C, matching the original 477HSM025M. The Rubycon parts (35RX30470M10X20 and 35RX30470MSG10X20) extend to -40°C to 130°C. The Vishay and EPCOS parts extend to -55°C to 125°C.

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