ESMQ451VSN151MP35S Equivalent & Substitute Parts

Part Overview

The ESMQ451VSN151MP35S is a 150 µF, 450 V aluminum electrolytic capacitor manufactured by Chemi-Con in the SMQ series. This radial, can-type snap-in capacitor is designed for general-purpose applications requiring through-hole mounting. The part is currently active in production with 825 pieces in stock. Substitute parts are necessary to address supply chain continuity, extended operational lifetime requirements, or enhanced temperature performance specifications.

Substiute Parts

ESMQ451VSN151MP35S

Chemi-ConIn Stock: 848ESMQ451VSN151MP35S Datasheet

Current PartRFQ

450VXH150MEFCSN22X35

RubyconIn Stock: 3919450VXH150MEFCSN22X35 Datasheet

DirectRFQ

LGG2W151MELZ35

NichiconIn Stock: 1137LGG2W151MELZ35 Datasheet

DirectRFQ

450MXG150MEFCSN22X35

RubyconIn Stock: 1000369450MXG150MEFCSN22X35 Datasheet

UpgradeRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ESMQ451VSN151MP35S is determined by strict equivalence in the following parameters:

Critical Matching Parameters:

• Capacitance: 150 µF (exact match required)
• Tolerance: ±20% (exact match required)
• Voltage - Rated: 450 V (exact match required)
• Lead Spacing: 0.394" (10.00 mm) (exact match required)
• Size / Dimension: 0.866" Dia (22.00 mm) (exact match required)
• Height - Seated (Max): 1.457" (37.00 mm) (exact match required)
• Package / Case: Radial, Can - Snap-In (exact match required)
• Mounting Type: Through Hole (exact match required)
• Polarization: Polar (exact match required)

Allowable Variation Parameters:

• Operating Temperature Range: May extend beyond -25°C ~ 85°C
• Lifetime @ Temperature: May exceed 2000 Hrs @ 85°C
• Ripple Current: May vary within acceptable operational limits
• RoHS Status: May upgrade from RoHS Compliant to ROHS3 Compliant

All substitute parts listed meet these criteria and are direct functional equivalents suitable for board-level replacement without design modification.

Parameter Comparison

Engineering Selection Recommendations

Direct Equivalent (450VXH150MEFCSN22X35 - Rubycon VXH Series): This substitute provides extended operational lifetime of 5000 hours at 105°C compared to the original 2000 hours at 85°C. The part maintains identical physical dimensions, lead spacing, and electrical ratings. ROHS3 compliance represents an upgrade from RoHS compliance. This part is suitable for applications requiring enhanced reliability and extended service life within the same thermal envelope.

Direct Equivalent (LGG2W151MELZ35 - Nichicon LGG Series): This substitute maintains the 2000-hour lifetime specification but extends the maximum operating temperature to 105°C. Physical dimensions and electrical ratings remain identical to the original part. ROHS3 compliance is provided. This part is suitable for applications operating at elevated ambient temperatures while maintaining equivalent reliability metrics.

Upgrade Option (450MXG150MEFCSN22X35 - Rubycon MXG Series): This substitute offers intermediate lifetime performance of 3000 hours at 105°C, positioned between the original and the VXH series. Extended operating temperature range to 105°C and ROHS3 compliance are provided. Significantly higher inventory availability (1,000,300 pieces) supports supply chain continuity. This part is suitable for applications requiring improved thermal performance and supply security.

All three substitute parts are active products with current manufacturing status and full regulatory compliance documentation.

Frequently Asked Questions (FAQ)

Q: Can the 450VXH150MEFCSN22X35 be used as a direct replacement for the ESMQ451VSN151MP35S?

A: Yes. The 450VXH150MEFCSN22X35 is a direct functional equivalent. All critical parameters including capacitance (150 µF), voltage rating (450 V), tolerance (±20%), physical dimensions (0.866" diameter, 1.457" height, 10.00 mm lead spacing), and package type (radial, can-type snap-in) are identical. The substitute provides enhanced lifetime performance (5000 hours at 105°C versus 2000 hours at 85°C) and extended operating temperature range (-25°C to 105°C).

Q: What is the difference between the three substitute parts?

A: The three substitutes differ in lifetime specifications and inventory availability. The 450VXH150MEFCSN22X35 (Rubycon VXH) provides the longest lifetime at 5000 hours @ 105°C. The 450MXG150MEFCSN22X35 (Rubycon MXG) offers 3000 hours @ 105°C with the highest inventory availability. The LGG2W151MELZ35 (Nichicon LGG) provides 2000 hours @ 105°C. All three maintain identical electrical and physical specifications.

Q: Are there any physical compatibility concerns when substituting these parts?

A: No. All substitute parts maintain identical lead spacing (0.394" / 10.00 mm), case diameter (0.866" / 22.00 mm), and maximum seated height (1.457" / 37.00 mm). All are radial, can-type snap-in packages with through-hole mounting. Direct board-level substitution is possible without PCB modification.

Q: Do the substitute parts meet the same regulatory requirements?

A: The substitute parts exceed the regulatory requirements of the original part. The ESMQ451VSN151MP35S is RoHS Compliant. All three substitutes are ROHS3 Compliant, representing an upgrade in regulatory compliance. All parts are REACH Unaffected and carry EAR99 ECCN classification.

Q: Which substitute should be selected for high-temperature applications?

A: All three substitutes support extended operating temperature to 105°C, compared to the original 85°C maximum. Selection should be based on lifetime requirements at the elevated temperature. For applications requiring maximum reliability at 105°C, the 450VXH150MEFCSN22X35 (5000 hours @ 105°C) is the optimal choice. For cost-optimized solutions with adequate reliability, the 450MXG150MEFCSN22X35 (3000 hours @ 105°C) is suitable.

Q: Can ripple current specifications vary between the original and substitute parts?

A: Yes. Ripple current values may vary between manufacturers while maintaining functional equivalence. The original ESMQ451VSN151MP35S specifies 1.19 A @ 120 Hz and 1.7017 A @ 50 kHz. Substitutes provide comparable ripple current handling within their respective specifications. Circuit design should reference the specific ripple current rating of the selected substitute part for thermal margin calculations.