Equivalent & Substitute Parts for 477HSM050M

Part Overview

The 477HSM050M is a 470 µF, 50 V aluminum electrolytic capacitor in radial, can package manufactured by Cornell Dubilier / Illinois Capacitor. This component is classified as obsolete, with 1129 pieces currently in stock. The HSM series capacitor is rated for general purpose applications with a 2000-hour lifetime at 125°C and an operating temperature range of -40°C to 125°C.

Due to the obsolete product status of the 477HSM050M, equivalent and substitute parts from active manufacturers are necessary to ensure long-term component availability and supply chain continuity. The substitute parts listed maintain the core electrical specifications (470 µF capacitance, 50 V rated voltage, ±20% tolerance) while offering improved performance characteristics, extended lifetime ratings, and active production status.

Key Parameters

Parameter	477HSM050M
Capacitance	470 µF
Voltage - Rated	50 V
Tolerance	±20%
ESR (Equivalent Series Resistance)	353 mOhm @ 120 Hz
Lifetime @ Temperature	2000 Hrs @ 125°C
Operating Temperature Range	-40°C ~ 125°C
Ripple Current @ 120 Hz	570 mA
Ripple Current @ 100 kHz	712.5 mA
Lead Spacing	0.197" (5.00 mm)
Size / Dimension	0.492" Dia (12.50 mm)
Height - Seated (Max)	1.043" (26.50 mm)
Mounting Type	Through Hole
Package / Case	Radial, Can
Polarization	Polar
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution eligibility for the 477HSM050M is determined by strict adherence to the following core electrical and mechanical parameters:

Mandatory Matching Parameters:

Capacitance: 470 µF (exact match required)
Voltage - Rated: 50 V (exact match required)
Tolerance: ±20% (exact match required)
Lead Spacing: 0.197" (5.00 mm) (exact match required)
Size / Dimension: 0.492" Dia (12.50 mm) (exact match required)
Mounting Type: Through Hole (exact match required)
Package / Case: Radial, Can (exact match required)
Polarization: Polar (exact match required)

Allowable Variation Parameters:

ESR (Equivalent Series Resistance): Lower values are acceptable
Lifetime @ Temperature: Equal or extended values are acceptable
Operating Temperature Range: Equal or extended ranges are acceptable
Ripple Current: Equal or higher values are acceptable
Height - Seated (Max): Minor variations within mechanical tolerance are acceptable (up to 1.063")

All substitute parts listed meet or exceed the mandatory matching parameters. Variations in performance characteristics represent improvements or equivalent functionality suitable for direct replacement in the original application.

Parameter Comparison

Parameter	477HSM050M	EEU-TA1H471L	50RX30470M12.5X25	50RX30470MCE12.5X25	50RX30470MZO12.5X25	B41866C6477M000	B41896E6477M000	EGXE500ELL471MK25S	MAL214091473E3	MAL214091475E3	MAL214091476E3
Capacitance	470 µF	470 µF	470 µF	470 µF	470 µF	470 µF	470 µF	470 µF	470 µF	470 µF	470 µF
Voltage - Rated	50 V	50 V	50 V	50 V	50 V	50 V	50 V	50 V	50 V	50 V	50 V
Tolerance	±20%	±20%	±20%	±20%	±20%	±20%	±20%	±20%	±20%	±20%	±20%
Lead Spacing	0.197" (5.00 mm)	0.197" (5.00 mm)	0.197" (5.00 mm)	0.197" (5.00 mm)	0.197" (5.00 mm)	0.197" (5.00 mm)	0.197" (5.00 mm)	0.197" (5.00 mm)	0.197" (5.00 mm)	0.197" (5.00 mm)	0.197" (5.00 mm)
Size / Dimension	0.492" Dia (12.50 mm)	0.492" Dia (12.50 mm)	0.492" Dia (12.50 mm)	0.492" Dia (12.50 mm)	0.492" Dia (12.50 mm)	0.492" Dia (12.50 mm)	0.492" Dia (12.50 mm)	0.492" Dia (12.50 mm)	0.492" Dia (12.50 mm)	0.492" Dia (12.50 mm)	0.492" Dia (12.50 mm)
Height - Seated (Max)	1.043" (26.50 mm)	1.063" (27.00 mm)	1.063" (27.00 mm)	1.063" (27.00 mm)	1.063" (27.00 mm)	1.063" (27.00 mm)	1.063" (27.00 mm)	1.063" (27.00 mm)	1.063" (27.00 mm)	1.063" (27.00 mm)	1.063" (27.00 mm)
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
Package / Case	Radial, Can	Radial, Can	Radial, Can	Radial, Can	Radial, Can	Radial, Can	Radial, Can	Radial, Can	Radial, Can	Radial, Can	Radial, Can
Polarization	Polar	Polar	Polar	Polar	Polar	Polar	Polar	Polar	Polar	Polar	Polar
Operating Temperature Range	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 130°C	-40°C ~ 130°C	-40°C ~ 130°C	-55°C ~ 125°C	-55°C ~ 125°C	-40°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C
Lifetime @ Temperature	2000 Hrs @ 125°C	2000 Hrs @ 125°C	4000 Hrs @ 130°C	4000 Hrs @ 130°C	2000 Hrs @ 130°C	5000 Hrs @ 125°C	7000 Hrs @ 125°C	5000 Hrs @ 125°C	3000 Hrs @ 125°C	3000 Hrs @ 125°C	3000 Hrs @ 125°C
Product Status	Obsolete	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active

Engineering Selection Recommendations

Direct Equivalent (Active Status, Matching Specifications):

The EEU-TA1H471L from Panasonic Electronic Components is the direct equivalent substitute. This part maintains identical electrical specifications (470 µF, 50 V, ±20% tolerance) and identical operating temperature range (-40°C to 125°C). The EEU-TA1H471L is in active production status with 1074 pieces in stock, ensuring long-term availability. This part is suitable for direct replacement in general purpose applications without design modification.

Enhanced Performance Substitutes (Active Status, Improved Specifications):

The following parts offer extended lifetime ratings or improved operating temperature ranges while maintaining all mandatory matching parameters:

B41896E6477M000 (EPCOS - TDK Electronics): Highest performance option with 7000-hour lifetime at 125°C, extended operating temperature range (-55°C to 125°C), and AEC-Q200 automotive rating. Lowest impedance at 34 mOhms. 5805 pieces in stock.
50RX30470M12.5X25 and 50RX30470MCE12.5X25 (Rubycon): Both offer 4000-hour lifetime at 130°C with extended operating temperature range (-40°C to 130°C) and AEC-Q200 automotive rating. 785 and 932 pieces in stock respectively.
EGXE500ELL471MK25S (Chemi-Con): 5000-hour lifetime at 125°C with AEC-Q200 automotive rating. 1423 pieces in stock.
MAL214091473E3, MAL214091475E3, MAL214091476E3 (Vishay Beyschlag/Draloric/BC Components): All three variants offer 3000-hour lifetime at 125°C with extended operating temperature range (-55°C to 125°C). Stock quantities: 1087, 710, and 1179 pieces respectively.

Compliance and Certifications:

All substitute parts are RoHS3 compliant. Parts designated for automotive applications (Rubycon RX30 series, EPCOS B41866/B41896 series, Chemi-Con GXE series) carry AEC-Q200 certification. Selection should be based on application requirements: general purpose applications may use any listed substitute; automotive applications should prioritize parts with AEC-Q200 rating.

Frequently Asked Questions (FAQ)

Q: Can the 477HSM050M be directly replaced with any of the listed substitute parts?

A: Yes. All listed substitute parts maintain the mandatory electrical and mechanical parameters: 470 µF capacitance, 50 V rated voltage, ±20% tolerance, identical lead spacing (5.00 mm), identical can diameter (12.50 mm), through-hole radial mounting, and polar configuration. Physical fit and electrical function are preserved.

Q: What is the difference between the direct equivalent and enhanced performance substitutes?

A: The EEU-TA1H471L is a direct equivalent with matching lifetime (2000 hours at 125°C) and operating temperature range (-40°C to 125°C). Enhanced performance substitutes offer extended lifetime ratings (3000 to 7000 hours at 125°C or 130°C) and/or extended operating temperature ranges (down to -55°C). These improvements do not affect compatibility; they represent superior performance characteristics.

Q: Are there height differences between the 477HSM050M and substitute parts?

A: The 477HSM050M has a maximum seated height of 1.043" (26.50 mm). Most substitute parts have a maximum seated height of 1.063" (27.00 mm), representing a 0.020" (0.50 mm) increase. This minor variation is within standard mechanical tolerance for through-hole radial capacitors and does not affect PCB layout compatibility in typical applications.

Q: Which substitute part should I select for automotive applications?

A: For automotive applications, select parts with AEC-Q200 certification: B41896E6477M000, B41866C6477M000, 50RX30470M12.5X25, 50RX30470MCE12.5X25, 50RX30470MZO12.5X25, or EGXE500ELL471MK25S. The B41896E6477M000 offers the highest performance specification with 7000-hour lifetime at 125°C.

Q: What does the ESR (Equivalent Series Resistance) specification indicate?

A: ESR represents the internal resistance of the capacitor at a specified frequency. Lower ESR values indicate better high-frequency performance and lower heat generation under ripple current conditions. The 477HSM050M has 353 mOhm ESR at 120 Hz. Substitute parts with lower ESR values (such as B41896E6477M000 at 34 mOhms) provide improved performance in applications with significant AC ripple current.

Q: Can I use a substitute part with a higher operating temperature range in a -40°C to 125°C application?

A: Yes. Parts with extended operating temperature ranges (such as -55°C to 125°C) are fully compatible with applications requiring -40°C to 125°C operation. The extended range provides additional design margin and flexibility for future application modifications.

Q: What is the significance of the 2000-hour, 3000-hour, 4000-hour, and 7000-hour lifetime ratings?

A: These ratings specify the expected operational lifetime at the stated temperature (typically 125°C or 130°C) under rated ripple current conditions. Extended lifetime ratings indicate improved reliability and longer service life. Selection should be based on application duty cycle and expected service life requirements.

Q: Are all substitute parts RoHS compliant?

A: Yes. All listed substitute parts are RoHS3 compliant, meeting current environmental and hazardous substance restrictions for electronic components.

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