477LMU200M2BF Equivalent & Substitute Parts Reference

Part Overview

The 477LMU200M2BF is a 470 µF, 200 V aluminum electrolytic capacitor manufactured by Cornell Dubilier / Illinois Capacitor in the LMU series. This component is a radial, can-style snap-in capacitor designed for general-purpose applications with a rated lifetime of 2000 hours at 105°C. The part is currently obsolete, making equivalent and substitute parts necessary for ongoing system support and new designs requiring compatible specifications.

Key Parameters

Parameter	Value	Unit
Capacitance	470	µF
Tolerance	±20%	—
Voltage - Rated	200	V
ESR @ 120Hz	352.737	mOhm
Lifetime @ 105°C	2000	Hrs
Operating Temperature Range	-40 to 105	°C
Lead Spacing	10.00	mm
Diameter	22.00	mm
Height - Seated (Max)	42.00	mm
Mounting Type	Through Hole	—
Package / Case	Radial, Can - Snap-In	—
Polarization	Polar	—
Applications	General Purpose	—

Substitute Part Grouping Explanation

Substitution of the 477LMU200M2BF is determined by the following critical parameters:

Primary Matching Criteria:

Capacitance: 470 µF (exact match required)
Tolerance: ±20% (exact match required)
Voltage Rating: 200 V (minimum; higher voltage ratings are acceptable upgrades)
Package / Case: Radial, Can - Snap-In (exact match required)
Lead Spacing: 10.00 mm (exact match required)
Mounting Type: Through Hole (exact match required)
Polarization: Polar (exact match required)

Secondary Compatibility Parameters:

Operating Temperature Range: -40°C to 105°C (minimum requirement)
Diameter: 22.00 mm (exact match required for mechanical fit)
Height - Seated (Max): Physical height must not exceed available board space; variations acceptable within design constraints

Performance Parameters (Non-Critical for Substitution):

ESR, Ripple Current, and Lifetime @ 105°C: These parameters may vary between substitute parts. Selection depends on application requirements and thermal management considerations.

Substitute parts are grouped into two categories:

Direct Substitutes (200 V Rating): Parts maintaining the exact 200 V voltage rating with identical mechanical dimensions and electrical specifications suitable for direct replacement.

Upgrade Substitutes (250 V Rating): Parts with elevated voltage ratings (250 V) that provide enhanced voltage margin while maintaining all other critical parameters. These are electrically and mechanically compatible but offer improved reliability in applications subject to voltage transients.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Series	Capacitance (µF)	Voltage (V)	Tolerance	Lifetime @ 105°C (Hrs)	Height - Seated (mm)	Product Status	RoHS Compliance
477LMU200M2BF	Cornell Dubilier / Illinois Capacitor	LMU	470	200	±20%	2000	42.00	Obsolete	Not Specified
200MXC470MEFC22X35	Rubycon	MXC	470	200	±20%	3000	37.00	Active	Non-compliant
381LR471M200H032	Cornell Dubilier Electronics (CDE)	381LR	470	200	±20%	3000	37.00	Active	ROHS3 Compliant
LAR2D471MELZ30	Nichicon	LAR	470	200	±20%	2000	30.00	Active	ROHS3 Compliant
LGN2D471MELZ30	Nichicon	LGN	470	200	±20%	3000	32.00	Active	ROHS3 Compliant
LGR2D471MELZ40	Nichicon	LGR	470	200	±20%	10000	42.00	Active	ROHS3 Compliant
LGU2D471MELZ	Nichicon	LGU	470	200	±20%	3000	35.00	Active	ROHS3 Compliant
LGW2D471MELZ30	Nichicon	LGW	470	200	±20%	3000	30.00	Active	ROHS3 Compliant
477LMH250M2BF	Cornell Dubilier / Illinois Capacitor	LMH	470	250	±20%	2000	42.00	Active	ROHS3 Compliant
250MXG470MEFCSN22X40	Rubycon	MXG	470	250	±20%	3000	42.00	Active	ROHS3 Compliant
B43508E2477M000	EPCOS - TDK Electronics	B43508	470	250	±20%	3000	42.00	Active	ROHS3 Compliant

Engineering Selection Recommendations

Direct Replacement (200 V Rating):

For applications requiring exact voltage specification and immediate compatibility, the following active parts are suitable direct replacements:

LGU2D471MELZ (Nichicon, LGU series): Active product status with ROHS3 compliance. Maintains 200 V rating with 3000-hour lifetime at 105°C. Height of 35.00 mm accommodates standard board layouts. Highest inventory availability (72,121 pcs) ensures supply continuity.
381LR471M200H032 (Cornell Dubilier Electronics, 381LR series): Active product status with ROHS3 compliance. Offers extended 3000-hour lifetime at 105°C with improved ESR characteristics (523 mOhm @ 120Hz). Height of 37.00 mm is compatible with most applications. Substantial inventory (3,989 pcs) supports production requirements.
LGR2D471MELZ40 (Nichicon, LGR series): Active product status with ROHS3 compliance. Provides extended 10,000-hour lifetime at 105°C for applications requiring maximum thermal endurance. Maintains original 42.00 mm height. Suitable for long-life applications with thermal stress.

Voltage Upgrade (250 V Rating):

For applications where voltage margin enhancement is beneficial:

B43508E2477M000 (EPCOS - TDK Electronics, B43508 series): Active product status with ROHS3 compliance. Provides 250 V rating with 3000-hour lifetime at 105°C. Maintains 42.00 mm height matching original dimensions. Exceptional inventory availability (842,300 pcs) ensures reliable sourcing. ESR of 250 mOhm @ 100Hz provides superior electrical performance.
477LMH250M2BF (Cornell Dubilier / Illinois Capacitor, LMH series): Active product status with ROHS3 compliance. Maintains manufacturer continuity with 250 V upgrade. Identical 42.00 mm height and lead spacing. Suitable for designs requiring same-manufacturer sourcing strategy.

Height-Constrained Applications:

For designs with limited vertical clearance:

LAR2D471MELZ30 (Nichicon, LAR series): Compact 30.00 mm height with 2000-hour lifetime at 105°C. ROHS3 compliant and active status.
LGW2D471MELZ30 (Nichicon, LGW series): Compact 30.00 mm height with 3000-hour lifetime at 105°C. Highest ripple current capability (2.17 A @ 120Hz). ROHS3 compliant and active status. Largest inventory (528,374 pcs).

Compliance Considerations:

All recommended active substitutes carry ROHS3 compliance certification. The original 477LMU200M2BF (obsolete status) does not specify RoHS compliance. Designs transitioning to new production should prioritize ROHS3-compliant alternatives to meet current regulatory requirements.

Frequently Asked Questions (FAQ)

Q: Can the 477LMU200M2BF be replaced with a 250 V rated capacitor?

A: Yes. A 250 V rated capacitor with identical capacitance (470 µF), tolerance (±20%), package (Radial, Can - Snap-In), lead spacing (10.00 mm), and diameter (22.00 mm) is electrically and mechanically compatible. The higher voltage rating provides additional safety margin without affecting circuit operation at 200 V or below.

Q: What is the impact of different height dimensions on substitution?

A: Height variations affect physical board layout and clearance. The original part specifies 42.00 mm maximum seated height. Substitute parts with reduced heights (30.00 mm to 37.00 mm) fit within the same footprint and are mechanically compatible. Parts with greater heights may require board redesign. Verify available vertical clearance before selecting height-variant substitutes.

Q: Does ESR variation between substitute parts affect circuit performance?

A: ESR (Equivalent Series Resistance) influences ripple current handling and thermal characteristics. The original part specifies 352.737 mOhm @ 120Hz. Substitute parts with higher ESR values generate more heat under ripple current stress; those with lower ESR values provide improved thermal performance. Selection depends on application ripple current levels and thermal management requirements. For general-purpose applications, ESR variations within the specified ranges are acceptable.

Q: Are all substitute parts RoHS compliant?

A: All recommended active substitute parts carry ROHS3 compliance certification. The original 477LMU200M2BF does not specify RoHS status. New designs and production transitions should prioritize ROHS3-compliant alternatives to meet current regulatory and customer requirements.

Q: What is the difference between direct substitutes and upgrade substitutes?

A: Direct substitutes maintain the original 200 V voltage rating and are suitable for applications with strict voltage specifications. Upgrade substitutes feature 250 V ratings, providing enhanced voltage margin for applications subject to transient overvoltages or where additional safety margin is desired. Both categories maintain identical capacitance, tolerance, package, and lead spacing.

Q: Can the 477LMU200M2BF be used interchangeably with parts having different lifetimes at 105°C?

A: Lifetime specifications indicate thermal endurance under rated conditions. The original part specifies 2000 hours at 105°C. Substitute parts with extended lifetimes (3000 or 10,000 hours) provide superior thermal reliability and are suitable for applications with sustained elevated temperature exposure. Parts with identical or longer lifetimes are directly compatible. Selection depends on application thermal profile and reliability requirements.

Q: What inventory considerations apply to substitute part selection?

A: Inventory levels vary significantly among substitute options. LGU2D471MELZ (Nichicon) offers the highest availability at 72,121 pcs, ensuring supply continuity for high-volume production. B43508E2477M000 (EPCOS - TDK Electronics) provides 842,300 pcs for 250 V applications. Smaller inventory parts (919 to 3,989 pcs) are suitable for lower-volume requirements. Verify supplier inventory status before finalizing design selections.

Q: Are all substitute parts rated for the same operating temperature range?

A: Most substitute parts operate across -40°C to 105°C, matching the original specification. The exception is 250MXG470MEFCSN22X40 (Rubycon), which operates -25°C to 105°C, providing a narrower low-temperature range. For applications requiring operation below -25°C, select alternatives with -40°C minimum rating.

Q: What is the significance of snap-in package designation?

A: Snap-in packaging indicates mechanical mounting via spring clips or similar retention mechanisms on the PCB, as opposed to solder-only through-hole mounting. All listed parts maintain this snap-in configuration, ensuring mechanical compatibility with existing board designs and assembly processes.

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