APSA6R3ELL331MFA5G Equivalent & Substitute Parts

Part Overview

The APSA6R3ELL331MFA5G is a 330 µF, 6.3 V aluminum polymer capacitor manufactured by Chemi-Con in the NPCAP™-PSA series. This through-hole radial can capacitor is designed for general-purpose applications with a rated lifetime of 2000 hours at 105°C and an equivalent series resistance (ESR) of 28 mOhm. The part is currently obsolete, necessitating identification of functionally equivalent alternatives from active product lines that maintain the same electrical and mechanical specifications.

Key Parameters

Parameter	Value
Capacitance	330 µF
Voltage Rating	6.3 V
Type	Aluminum Polymer
Tolerance	±20%
ESR (Equivalent Series Resistance)	28 mOhm
Lifetime @ Temperature	2000 Hrs @ 105°C
Operating Temperature Range	-55°C ~ 105°C
Mounting Type	Through Hole
Package Type	Radial, Can
Lead Spacing	0.098" (2.50 mm)
Case Diameter	0.248" (6.30 mm)
Height (Seated Max)	0.413" (10.50 mm)
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution of the APSA6R3ELL331MFA5G is determined by strict equivalence in the following parameters:

Primary Equivalence Criteria:

Capacitance: 330 µF (exact match required)
Voltage Rating: 6.3 V (exact match required)
Tolerance: ±20% (exact match required)
Type: Aluminum Polymer (exact match required)
Mounting Type: Through Hole (exact match required)
Package Type: Radial, Can (exact match required)
Operating Temperature Range: -55°C ~ 105°C (exact match required)

Secondary Compatibility Parameters:

Lead Spacing: 0.098" (2.50 mm) preferred for direct PCB compatibility
Case Diameter: 0.248" (6.30 mm) preferred for direct mechanical fit
Height (Seated Max): 0.413" (10.50 mm) preferred for direct mechanical fit
ESR: Lower values acceptable (improved performance)
Lifetime @ Temperature: Equal or greater values acceptable (improved reliability)
Ripple Current: Equal or greater values acceptable (improved performance)

Substitute parts meeting all primary criteria are considered functionally equivalent. Variations in secondary parameters indicate mechanical or performance differences that may require PCB layout verification or thermal analysis.

Parameter Comparison

Parameter	APSA6R3ELL331MFA5G (Main)	PLF0J331MDL4	RR70J331MDN1	RS80J331MDN1JT	RS80J331MDNASQJT
Manufacturer	Chemi-Con	Nichicon	Nichicon	Nichicon	Nichicon
Product Status	Obsolete	Active	Active	Active	Active
Series	NPCAP™-PSA	PLF	FPCAP, RR7	FPCAP, RS8	FPCAP, RS8
Capacitance	330 µF	330 µF	330 µF	330 µF	330 µF
Voltage Rating	6.3 V	6.3 V	6.3 V	6.3 V	6.3 V
Tolerance	±20%	±20%	±20%	±20%	±20%
Type	Polymer	Polymer	Polymer	Polymer	Polymer
ESR (mOhm)	28	24	7	8	8
Lifetime @ 105°C	2000 Hrs	2000 Hrs	2000 Hrs	2000 Hrs	5000 Hrs
Operating Temperature	-55°C ~ 105°C	-55°C ~ 105°C	-55°C ~ 105°C	-55°C ~ 105°C	-55°C ~ 105°C
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
Package Type	Radial, Can	Radial, Can	Radial, Can	Radial, Can	Radial, Can
Lead Spacing	0.098" (2.50 mm)	0.098" (2.50 mm)	0.197" (5.00 mm)	0.098" (2.50 mm)	0.098" (2.50 mm)
Case Diameter	0.248" (6.30 mm)	0.248" (6.30 mm)	0.394" (10.00 mm)	0.248" (6.30 mm)	0.248" (6.30 mm)
Height (Seated Max)	0.413" (10.50 mm)	0.413" (10.50 mm)	0.551" (14.00 mm)	0.315" (8.00 mm)	0.315" (8.00 mm)
Ripple Current @ 100 kHz	3.16 A	3.3 A	6.1 A	5 A	5 A
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected

Engineering Selection Recommendations

Direct Mechanical Replacement (Preferred):

PLF0J331MDL4 (Nichicon) provides the closest mechanical and electrical compatibility. This part maintains identical lead spacing (0.098" / 2.50 mm), case diameter (0.248" / 6.30 mm), and height (0.413" / 10.50 mm) as the original APSA6R3ELL331MFA5G. The ESR is reduced to 24 mOhm, representing improved performance characteristics. Both parts share identical lifetime ratings (2000 Hrs @ 105°C) and are ROHS3 compliant. This substitute requires no PCB layout modifications.

Performance-Enhanced Alternatives:

RS80J331MDN1JT and RS80J331MDNASQJT (Nichicon) offer significantly reduced ESR (8 mOhm) and improved ripple current handling (5 A @ 100 kHz). Both maintain the same lead spacing (0.098" / 2.50 mm) and case diameter (0.248" / 6.30 mm) as the original part. However, the seated height is reduced to 0.315" (8.00 mm), which is 0.098" (2.50 mm) shorter than the original. PCB layout verification is required to confirm clearance compatibility. RS80J331MDNASQJT provides extended lifetime (5000 Hrs @ 105°C) compared to the original 2000-hour rating.

Alternative with Modified Footprint:

RR70J331MDN1 (Nichicon) offers the lowest ESR (7 mOhm) and highest ripple current capacity (6.1 A @ 100 kHz). This part features a larger case diameter (0.394" / 10.00 mm) and increased lead spacing (0.197" / 5.00 mm), requiring PCB layout modifications. Use this substitute only when thermal performance or ripple current handling is a critical design requirement and PCB space permits the larger footprint.

Compliance Status:

All substitute parts are active products with ROHS3 compliance and REACH unaffected status, meeting current regulatory requirements for new designs and production.

Frequently Asked Questions (FAQ)

Q: Can PLF0J331MDL4 be used as a direct replacement for APSA6R3ELL331MFA5G without PCB modifications?

A: Yes. PLF0J331MDL4 maintains identical mechanical dimensions (lead spacing, case diameter, and height) and electrical specifications (capacitance, voltage, tolerance, and operating temperature range). No PCB layout changes are required for this substitution.

Q: What is the difference between RS80J331MDN1JT and RS80J331MDNASQJT?

A: Both parts are electrically and mechanically identical with the same capacitance (330 µF), voltage (6.3 V), ESR (8 mOhm), and dimensions. The primary difference is lifetime rating: RS80J331MDN1JT is rated for 2000 hours at 105°C, while RS80J331MDNASQJT is rated for 5000 hours at 105°C. The extended lifetime part is suitable for applications requiring higher reliability or longer service life.

Q: Why is RR70J331MDN1 larger than the original part?

A: RR70J331MDN1 is designed with a larger case (0.394" diameter vs. 0.248" diameter) and wider lead spacing (0.197" vs. 0.098") to accommodate lower ESR (7 mOhm) and higher ripple current capacity (6.1 A @ 100 kHz). The larger physical size enables improved thermal dissipation and electrical performance characteristics.

Q: Can RS80J331MDN1JT be used in applications with height restrictions?

A: Yes. RS80J331MDN1JT has a seated height of 0.315" (8.00 mm), which is 0.098" (2.50 mm) shorter than the original APSA6R3ELL331MFA5G at 0.413" (10.50 mm). This reduced height makes it suitable for space-constrained applications. Verify that the shorter height does not affect circuit board layout or component clearances.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All substitute parts listed (PLF0J331MDL4, RR70J331MDN1, RS80J331MDN1JT, and RS80J331MDNASQJT) are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory standards.

Q: What does ESR mean and why does it matter for substitution?

A: ESR (Equivalent Series Resistance) is the internal resistance of the capacitor measured in milliohms (mOhm). Lower ESR values indicate better performance in high-frequency applications and reduced heat generation. The original part has 28 mOhm ESR; all substitutes have equal or lower ESR values, representing equal or improved performance.

Q: Can I use RR70J331MDN1 if my PCB has limited space?

A: No. RR70J331MDN1 has a larger footprint (0.394" diameter case and 0.197" lead spacing) compared to the original part (0.248" diameter case and 0.098" lead spacing). This substitute requires PCB layout modifications and additional board space. Use this part only when thermal performance or ripple current capacity is a critical requirement and space is available.

Q: What is the difference between the packaging options listed?

A: Packaging refers to how parts are supplied. Bulk packaging indicates loose parts, while Cut Tape (CT) indicates parts on carrier tape suitable for automated assembly. The electrical and mechanical specifications remain identical regardless of packaging format.

Q: Is the original APSA6R3ELL331MFA5G still available?

A: No. The APSA6R3ELL331MFA5G is obsolete. All substitute parts listed are active products currently in production and available for new designs and production orders.

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