337HSM050M Equivalent & Substitute Parts Reference

Part Overview

The 337HSM050M is a 330 µF, 50 V aluminum electrolytic capacitor in radial, can package manufactured by Cornell Dubilier / Illinois Capacitor. This component is classified as obsolete, making equivalent substitutes necessary for ongoing production and maintenance applications. 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 stable capacitance and low equivalent series resistance.

Key Parameters

Parameter	Specification
Capacitance	330 µF
Voltage Rating	50 V
Tolerance	±20%
Polarization	Polar
Package Type	Radial, Can
Lead Spacing	0.197" (5.00 mm)
Diameter	0.492" (12.50 mm)
Height (Seated Max)	0.846" - 0.866" (21.50 - 22.00 mm)
Mounting Type	Through Hole
Operating Temperature	-40°C to 125°C
Lifetime @ Temperature	2000 Hrs @ 125°C

Substitute Part Grouping Explanation

Substitution eligibility for the 337HSM050M is determined by the following mandatory parameters:

Core Electrical Parameters:

Capacitance: 330 µF (exact match required)
Voltage Rating: 50 V (exact match required)
Tolerance: ±20% (exact match required)
Polarization: Polar (exact match required)

Core Mechanical Parameters:

Package Type: Radial, Can (exact match required)
Lead Spacing: 0.197" (5.00 mm) (exact match required)
Diameter: 0.492" (12.50 mm) (exact match required)
Mounting Type: Through Hole (exact match required)

Operational Parameters:

Operating Temperature Range: Minimum -40°C to 125°C (substitute must meet or exceed)
Lifetime @ Temperature: Minimum 2000 Hrs @ 125°C (substitute may exceed)

All identified substitute parts meet these core requirements. Variations in ESR, ripple current capacity, impedance, and extended lifetime ratings represent performance enhancements or automotive-grade certifications that do not affect direct substitutability.

Parameter Comparison

Part Number	Manufacturer	Capacitance	Voltage	Tolerance	Lead Spacing	Diameter	Height (Max)	Operating Temp	Lifetime @ 125°C	Product Status
337HSM050M	Cornell Dubilier / Illinois Capacitor	330 µF	50 V	±20%	0.197" (5.00 mm)	0.492" (12.50 mm)	0.846" (21.50 mm)	-40°C ~ 125°C	2000 Hrs	Obsolete
EEU-TA1H331	Panasonic Electronic Components	330 µF	50 V	±20%	0.197" (5.00 mm)	0.492" (12.50 mm)	0.866" (22.00 mm)	-40°C ~ 125°C	2000 Hrs	Active
50RX30330M12.5X20	Rubycon	330 µF	50 V	±20%	0.197" (5.00 mm)	0.492" (12.50 mm)	0.866" (22.00 mm)	-40°C ~ 130°C	4000 Hrs	Active
B41866C6337M000	EPCOS - TDK Electronics	330 µF	50 V	±20%	0.197" (5.00 mm)	0.492" (12.50 mm)	0.866" (22.00 mm)	-55°C ~ 125°C	5000 Hrs	Active
B41896C6337M000	EPCOS - TDK Electronics	330 µF	50 V	±20%	0.197" (5.00 mm)	0.492" (12.50 mm)	0.866" (22.00 mm)	-55°C ~ 125°C	7000 Hrs	Active
MAL214051331E3	Vishay Beyschlag/Draloric/BC Components	330 µF	50 V	±20%	0.197" (5.00 mm)	0.492" (12.50 mm)	0.866" (22.00 mm)	-55°C ~ 125°C	3000 Hrs	Active
MAL214061331E3	Vishay Beyschlag/Draloric/BC Components	330 µF	50 V	±20%	0.197" (5.00 mm)	0.492" (12.50 mm)	0.866" (22.00 mm)	-55°C ~ 125°C	3000 Hrs	Active
UBT1H331MHD8	Nichicon	330 µF	50 V	±20%	0.197" (5.00 mm)	0.492" (12.50 mm)	0.866" (22.00 mm)	-40°C ~ 125°C	10000 Hrs	Active
UBW1H331MHD	Nichicon	330 µF	50 V	±20%	0.197" (5.00 mm)	0.492" (12.50 mm)	0.866" (22.00 mm)	-55°C ~ 135°C	3000 Hrs	Active

Engineering Selection Recommendations

All substitute parts listed are electrically and mechanically compatible with the 337HSM050M based on core parameter alignment. Selection among substitutes depends on application-specific requirements:

For General-Purpose Applications: EEU-TA1H331 (Panasonic) provides direct functional equivalence with active product status and identical operating temperature range. This part maintains the same lifetime specification as the original component.

For Extended Lifetime Requirements: B41896C6337M000 (EPCOS - TDK Electronics) offers 7000 hours lifetime at 125°C with AEC-Q200 automotive rating. B41866C6337M000 (EPCOS - TDK Electronics) provides 5000 hours lifetime with extended lower temperature operation to -55°C. UBT1H331MHD8 (Nichicon) delivers 10000 hours lifetime at 125°C for applications requiring maximum reliability.

For Extended Temperature Range: B41866C6337M000, B41896C6337M000, MAL214051331E3, MAL214061331E3, and UBW1H331MHD all operate to -55°C, exceeding the original -40°C lower limit. UBW1H331MHD extends upper temperature operation to 135°C.

For Automotive Applications: B41896C6337M000 (EPCOS - TDK Electronics) and 50RX30330M12.5X20 (Rubycon) carry AEC-Q200 certification. UBT1H331MHD8 and UBW1H331MHD (Nichicon) are designated for automotive use.

For RoHS3 Compliance: All substitute parts except the original 337HSM050M carry RoHS3 Compliant status. All parts maintain REACH Unaffected or REACH Affected status as specified.

Frequently Asked Questions (FAQ)

Q: Can I use any of these substitute parts as a direct replacement for the 337HSM050M?

A: Yes. All listed substitute parts meet the core electrical and mechanical parameters: 330 µF capacitance, 50 V voltage rating, ±20% tolerance, radial can package, 0.197" lead spacing, 0.492" diameter, and through-hole mounting. Physical height varies slightly (0.866" maximum versus 0.846" original), but remains within standard PCB layout tolerances for radial capacitors.

Q: What is the difference between the substitute parts?

A: Substitute parts differ in manufacturer, product series, lifetime rating at temperature, operating temperature range, and compliance certifications. Core electrical and mechanical specifications remain identical. Extended lifetime ratings (3000 to 10000 hours at 125°C) and expanded temperature ranges (-55°C to 135°C) represent performance enhancements beyond the original 2000-hour, -40°C to 125°C specification.

Q: Which substitute should I choose for a new design?

A: Selection depends on application requirements. For general-purpose circuits, EEU-TA1H331 (Panasonic) provides equivalent performance with active product status. For automotive applications, select B41896C6337M000 (EPCOS - TDK Electronics) or 50RX30330M12.5X20 (Rubycon) for AEC-Q200 certification. For maximum reliability, UBT1H331MHD8 (Nichicon) offers 10000-hour lifetime.

Q: Are there any height restrictions I should consider?

A: The original 337HSM050M has a seated height of 0.846" (21.50 mm). All substitute parts have a maximum seated height of 0.866" (22.00 mm), representing a 0.020" (0.50 mm) increase. Verify PCB clearance for components mounted adjacent to this capacitor location.

Q: Do all substitutes have the same ESR and ripple current specifications?

A: No. ESR and ripple current values vary among manufacturers and series. The original part specifies 502 mOhm @ 120 Hz and 430 mA @ 120 Hz. Substitute parts provide lower ESR values (55 to 120 mOhms) and higher ripple current capacity (435 to 1820 mA depending on frequency). These represent performance improvements and do not affect substitutability.

Q: What is the REACH status difference between parts?

A: Most substitute parts carry REACH Unaffected status. UBT1H331MHD8 and UBW1H331MHD (Nichicon) carry REACH Affected status. Verify compliance requirements for your specific application and region.

Q: Can I mix different substitute parts in the same circuit?

A: Yes. All substitute parts meet identical core specifications and are mechanically compatible. Mixing different manufacturers or series in the same circuit does not create compatibility issues, though using a single part number per design simplifies procurement and inventory management.

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