SLP151M350A5P3

Part Overview

The SLP151M350A5P3 is a 150 µF, 350 V aluminum electrolytic capacitor in radial, can snap-in package manufactured by Cornell Dubilier Electronics (CDE). This component is classified as Active product status. Alternative equivalent and substitute parts are necessary when the primary component is unavailable, when extended operational lifetime is required, or when higher voltage ratings are needed for enhanced system reliability margins.

Key Parameters

Parameter	SLP151M350A5P3
Manufacturer	Cornell Dubilier Electronics (CDE)
Capacitance	150 µF
Voltage - Rated	350 V
Tolerance	±20%
ESR @ 120Hz	2.212 Ω
Lifetime @ 105°C	3000 Hrs
Operating Temperature Range	-25°C to 105°C
Ripple Current @ 120 Hz	820 mA
Ripple Current @ 20 kHz	1.21 A
Lead Spacing	0.394" (10.00 mm)
Size / Diameter	0.866" (22.00 mm)
Height - Seated (Max)	1.457" (37.00 mm)
Package / Case	Radial, Can - Snap-In
Mounting Type	Through Hole
RoHS Status	ROHS3 Compliant
Polarization	Polar

Substitute Part Grouping Explanation

Substitute parts for the SLP151M350A5P3 are qualified based on the following criteria:

Critical Parameters for Substitution:

Capacitance: 150 µF (exact match required)
Tolerance: ±20% (exact match required)
Voltage Rating: Equal to or greater than 350 V (upgrades permitted)
Lead Spacing: 0.394" (10.00 mm) (exact match required)
Size / Diameter: 0.866" (22.00 mm) (exact match required)
Height - Seated: 1.457" (37.00 mm) or compatible height (37.50 mm acceptable)
Package / Case: Radial, Can - Snap-In (exact match required)
Mounting Type: Through Hole (exact match required)
Operating Temperature Range: -25°C to 105°C (exact match required)
Polarization: Polar (exact match required)
RoHS Status: ROHS3 Compliant (exact match required)

Substitutes with higher voltage ratings (400 V, 420 V, 450 V) are permissible as they provide enhanced voltage margin and maintain backward compatibility with the original 350 V application. Extended operational lifetime (5000 Hrs vs. 3000 Hrs @ 105°C) represents performance enhancement without introducing compatibility issues.

Parameter Comparison

Part Number	Manufacturer	Capacitance	Voltage (V)	Tolerance	Lifetime @ 105°C	Lead Spacing	Diameter	Height (Max)	Ripple @ 120Hz
SLP151M350A5P3	CDE	150 µF	350	±20%	3000 Hrs	0.394" (10mm)	0.866" (22mm)	1.457" (37mm)	820 mA
400MXG150MEFCSN22X35	Rubycon	150 µF	400	±20%	3000 Hrs	0.394" (10mm)	0.866" (22mm)	1.457" (37mm)	1.13 A
420VXH150MEFCSN22X35	Rubycon	150 µF	420	±20%	5000 Hrs	0.394" (10mm)	0.866" (22mm)	1.457" (37mm)	1.12 A
450MXG150MEFCSN22X35	Rubycon	150 µF	450	±20%	3000 Hrs	0.394" (10mm)	0.866" (22mm)	1.457" (37mm)	1.13 A
450VXH150MEFCSN22X35	Rubycon	150 µF	450	±20%	5000 Hrs	0.394" (10mm)	0.866" (22mm)	1.457" (37mm)	1.13 A
ELXS421VSN151MP35S	Chemi-Con	150 µF	420	±20%	5000 Hrs	0.394" (10mm)	0.866" (22mm)	1.476" (37.5mm)	930 mA
LGX2G151MELZ35	Nichicon	150 µF	400	±20%	5000 Hrs	0.394" (10mm)	0.866" (22mm)	1.457" (37mm)	860 mA
LQSW6151MELZ35	Nichicon	150 µF	420	±20%	3000 Hrs	0.394" (10mm)	0.866" (22mm)	1.457" (37mm)	840 mA

Engineering Selection Recommendations

All listed substitute parts maintain Active product status and ROHS3 compliance, ensuring regulatory conformity and manufacturing continuity. Selection among substitutes should prioritize:

Higher Voltage Rating Substitutes (400 V - 450 V): These components provide voltage margin enhancement while maintaining all mechanical and electrical compatibility parameters with the original 350 V design. Substitution to higher voltage ratings introduces no functional risk and enhances system reliability.

Extended Lifetime Alternatives (5000 Hrs vs. 3000 Hrs @ 105°C): The 420VXH150MEFCSN22X35, 450VXH150MEFCSN22X35, ELXS421VSN151MP35S, and LGX2G151MELZ35 provide extended operational lifetime without additional mechanical or electrical constraints. These options support applications with extended service requirements.

Manufacturer Diversity: Rubycon, Chemi-Con, and Nichicon substitutes provide alternative sourcing when primary CDE components reach inventory limitations. All manufacturers maintain equivalent electrical performance within specified tolerance and lifetime parameters.

Frequently Asked Questions (FAQ)

Q: Can any of these substitute parts directly replace the SLP151M350A5P3? A: Yes. All listed parts share identical capacitance (150 µF), tolerance (±20%), lead spacing (10 mm), diameter (22 mm), package type (Radial, Can - Snap-In), and operating temperature range (-25°C to 105°C). Higher voltage ratings (400 V, 420 V, 450 V) represent full electrical compatibility for applications rated at 350 V.

Q: What is the advantage of selecting a 420 V or 450 V substitute over the original 350 V part? A: Higher voltage ratings provide additional voltage headroom in the application circuit, reducing component stress and improving system reliability margins. The capacitance, physical dimensions, and mounting requirements remain identical.

Q: Does the 1.476" (37.50 mm) height of ELXS421VSN151MP35S create a compatibility issue? A: The height tolerance of 0.019" (0.5 mm) difference from the standard 1.457" (37.00 mm) dimension is within typical PCB assembly tolerances for through-hole snap-in packages. Verification of available mounting clearance in the target application is required.

Q: What is the significance of lifetime rating differences (3000 Hrs vs. 5000 Hrs @ 105°C)? A: Extended lifetime ratings indicate longer operational capability at maximum temperature. For applications operating at lower temperatures or with duty cycles below continuous maximum-rated conditions, both 3000-hour and 5000-hour components deliver equivalent service life.

Q: Are there differences in ripple current capability among the substitutes? A: Ripple current ratings vary slightly across manufacturers. The original SLP151M350A5P3 specifies 820 mA @ 120 Hz. Substitute parts range from 840 mA to 1.13 A @ 120 Hz. Higher ripple current capability indicates enhanced thermal stability and is compatible with applications rated for the original component's ripple current specification.

Q: Which substitute offers the lowest equivalent series resistance (ESR)? A: The original SLP151M350A5P3 specifies ESR of 2.212 Ω @ 120 Hz. ESR values for substitute parts are not provided in the specification data. Selection based on ripple current capability (which correlates with ESR performance) indicates the Rubycon MXG and VXH series (400MXG150MEFCSN22X35, 450MXG150MEFCSN22X35, 450VXH150MEFCSN22X35) and Chemi-Con ELXS421VSN151MP35S as suitable alternatives.

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