AHA337M16F24B-F Equivalent & Substitute Parts

Part Overview

The AHA337M16F24B-F is a 330 µF, 16 V aluminum electrolytic capacitor manufactured by Cornell Dubilier Electronics (CDE) in surface mount radial can package. This component is rated for automotive applications with AEC-Q200 compliance and operates across a temperature range of -55°C to 105°C with a 2000-hour lifetime at 105°C. The part is currently discontinued at DiGi Electronics, necessitating identification of equivalent alternatives that maintain electrical and mechanical compatibility for existing designs.

Key Parameters

Parameter	Value
Capacitance	330 µF
Voltage Rating	16 V
Tolerance	±20%
Lifetime @ Temperature	2000 Hrs @ 105°C
Operating Temperature Range	-55°C ~ 105°C
Polarization	Polar
Package Type	Radial, Can - SMD
Mounting Type	Surface Mount
Size / Dimension	0.315" Dia (8.00mm)
Height - Seated (Max)	0.402" (10.20mm)
Surface Mount Land Size	0.327" L x 0.327" W (8.30mm x 8.30mm)
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the AHA337M16F24B-F is determined by strict equivalence across the following critical parameters:

Mandatory Equivalence Parameters:

Capacitance: 330 µF (exact match required)
Voltage Rating: 16 V (exact match required)
Tolerance: ±20% (exact match required)
Lifetime @ Temperature: 2000 Hrs @ 105°C (exact match required)
Operating Temperature Range: -55°C ~ 105°C (exact match required)
Polarization: Polar (exact match required)
Package Type: Radial, Can - SMD (exact match required)
Mounting Type: Surface Mount (exact match required)
Surface Mount Land Size: 0.327" L x 0.327" W (8.30mm x 8.30mm) (exact match required)

Compatible Variation Parameters:

Physical dimensions (diameter and height) within PCB layout constraints
ESR and impedance values (performance optimization, not substitution barrier)
Ripple current ratings (performance optimization, not substitution barrier)
Manufacturer identity (functional equivalence maintained across suppliers)

All identified substitute parts meet the mandatory equivalence parameters and are therefore direct functional replacements for the AHA337M16F24B-F in circuit applications.

Parameter Comparison

Part Number	Manufacturer	Capacitance	Voltage	Tolerance	Lifetime @ 105°C	Operating Temp Range	Size (Dia)	Height (Max)	Land Size	Product Status	AEC-Q200
AHA337M16F24B-F	Cornell Dubilier Electronics	330 µF	16 V	±20%	2000 Hrs	-55°C ~ 105°C	0.315" (8.00mm)	0.402" (10.20mm)	0.327" x 0.327" (8.30mm x 8.30mm)	Discontinued	Yes
AHA337M16G24B-F	Cornell Dubilier Electronics	330 µF	16 V	±20%	2000 Hrs	-55°C ~ 105°C	0.394" (10.00mm)	0.402" (10.20mm)	0.406" x 0.406" (10.30mm x 10.30mm)	Active	Yes
EEE-FK1C331AP	Panasonic Electronic Components	330 µF	16 V	±20%	2000 Hrs	-55°C ~ 105°C	0.315" (8.00mm)	0.413" (10.50mm)	0.327" x 0.327" (8.30mm x 8.30mm)	Active	Yes
EEE-FK1C331P	Panasonic Electronic Components	330 µF	16 V	±20%	2000 Hrs	-55°C ~ 105°C	0.315" (8.00mm)	0.413" (10.50mm)	0.327" x 0.327" (8.30mm x 8.30mm)	Active	Yes
EMVY160ARA331MHA0G	Chemi-Con	330 µF	16 V	±20%	2000 Hrs	-55°C ~ 105°C	0.315" (8.00mm)	0.394" (10.00mm)	0.327" x 0.327" (8.30mm x 8.30mm)	Active	No
EMZA160ARA331MHA0G	Chemi-Con	330 µF	16 V	±20%	2000 Hrs	-55°C ~ 105°C	0.315" (8.00mm)	0.413" (10.50mm)	0.327" x 0.327" (8.30mm x 8.30mm)	Active	Yes
UCL1C331MNL1GS	Nichicon	330 µF	16 V	±20%	2000 Hrs	-55°C ~ 105°C	0.315" (8.00mm)	0.394" (10.00mm)	0.327" x 0.327" (8.30mm x 8.30mm)	Active	No

Engineering Selection Recommendations

Primary Substitutes (Highest Compatibility):

EEE-FK1C331AP and EEE-FK1C331P (Panasonic) are direct functional equivalents with identical land size footprints (0.327" x 0.327"), matching the original AHA337M16F24B-F. Both parts carry AEC-Q200 automotive qualification and are in active production status. EEE-FK1C331P offers higher inventory availability (7591 units) compared to EEE-FK1C331AP (1560 units).

EMZA160ARA331MHA0G (Chemi-Con) provides equivalent electrical and mechanical specifications with AEC-Q200 compliance and automotive application rating. This part maintains identical land size and operating parameters.

Secondary Substitutes (Dimensional Variation):

AHA337M16G24B-F (Cornell Dubilier Electronics) is an active production variant from the same manufacturer series. This part features a larger diameter (0.394" vs. 0.315") and modified land size (0.406" x 0.406"), requiring PCB layout verification before implementation.

EMVY160ARA331MHA0G (Chemi-Con) and UCL1C331MNL1GS (Nichicon) maintain identical land size and electrical specifications but lack AEC-Q200 automotive certification. These parts are suitable for general-purpose applications only.

Compliance Considerations:

For automotive applications requiring AEC-Q200 compliance, select from: EEE-FK1C331AP, EEE-FK1C331P, EMZA160ARA331MHA0G, or AHA337M16G24B-F.

For general-purpose applications without automotive qualification requirements, EMVY160ARA331MHA0G and UCL1C331MNL1GS are functionally equivalent alternatives.

All substitute parts maintain ROHS3 compliance, MSL Level 1 (Unlimited), and REACH Unaffected status consistent with the original part.

Frequently Asked Questions (FAQ)

Q: Can AHA337M16G24B-F be used as a direct replacement for AHA337M16F24B-F?

A: AHA337M16G24B-F is electrically equivalent but has different physical dimensions and land size (0.394" diameter vs. 0.315", and 0.406" x 0.406" land size vs. 0.327" x 0.327"). PCB layout verification is required to confirm mechanical compatibility before substitution.

Q: What is the difference between EEE-FK1C331AP and EEE-FK1C331P?

A: Both parts are electrically and mechanically identical 330 µF, 16 V Panasonic capacitors with matching land sizes and AEC-Q200 compliance. The primary difference is packaging format (both Tape & Reel) and inventory availability. EEE-FK1C331P has significantly higher stock levels.

Q: Are EMVY160ARA331MHA0G and EMZA160ARA331MHA0G interchangeable?

A: Both are Chemi-Con 330 µF, 16 V capacitors with identical electrical specifications and land sizes. EMZA160ARA331MHA0G carries AEC-Q200 automotive certification while EMVY160ARA331MHA0G does not. Selection depends on application requirements.

Q: Why do some substitute parts lack AEC-Q200 certification?

A: AEC-Q200 is an automotive-specific qualification standard. Parts without this certification are suitable for general-purpose applications but should not be used in automotive designs requiring this compliance level.

Q: Can I use UCL1C331MNL1GS in an automotive application?

A: UCL1C331MNL1GS lacks AEC-Q200 certification and is rated for general-purpose applications only. For automotive designs, select from parts carrying AEC-Q200 compliance: EEE-FK1C331AP, EEE-FK1C331P, EMZA160ARA331MHA0G, or AHA337M16G24B-F.

Q: What is the significance of the 0.327" x 0.327" land size specification?

A: The land size defines the PCB footprint dimensions required for surface mount assembly. Parts with identical land sizes (0.327" x 0.327") are mechanically compatible with the original AHA337M16F24B-F PCB layout without modification. Parts with different land sizes require PCB redesign.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All identified substitute parts maintain ROHS3 compliance consistent with the original AHA337M16F24B-F.

Q: What does MSL Level 1 (Unlimited) mean for moisture sensitivity?

A: MSL Level 1 indicates the component has unlimited shelf life and requires no special moisture control during storage or handling. All substitute parts carry this same MSL rating.

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