AVGA338M16P44T-F Equivalent & Substitute Parts

Part Overview

The AVGA338M16P44T-F is a 3300 µF, 16 V aluminum electrolytic capacitor in surface mount radial can package manufactured by Cornell Dubilier Electronics (CDE). This component is classified as obsolete, which necessitates identification of equivalent substitute parts for ongoing design support and procurement continuity. The part is suitable for general-purpose applications requiring bulk capacitance storage and energy buffering in low-frequency circuits.

Substiute Parts

AVGA338M16P44T-F

Cornell Dubilier Electronics (CDE)In Stock: 873AVGA338M16P44T-F Datasheet

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AFK338M16P44T-F

Cornell Dubilier Electronics (CDE)In Stock: 1156AFK338M16P44T-F Datasheet

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AFK338M16P44VT-F

Cornell Dubilier Electronics (CDE)In Stock: 834AFK338M16P44VT-F Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the AVGA338M16P44T-F is determined by strict equivalence in the following electrical and mechanical parameters:

Mandatory Equivalence Criteria:

• Capacitance value: 3300 µF (exact match required)
• Voltage rating: 16 V (exact match required)
• Tolerance: ±20% (exact match required)
• Polarization: Polar (exact match required)
• Package type: Radial, Can - SMD (exact match required)
• Physical diameter: 0.630" (16.00 mm) (exact match required)
• Mounting type: Surface Mount (exact match required)

Acceptable Variation Parameters:

• ESR (Equivalent Series Resistance): Lower values indicate improved performance
• Lifetime at temperature: Higher values indicate extended operational life
• Operating temperature range: Extended ranges provide broader application compatibility
• Ripple current capability: Higher values indicate improved current handling
• Product status: Active parts are preferred over obsolete parts for long-term availability

The two substitute parts listed below satisfy all mandatory equivalence criteria while offering improvements in ESR, lifetime, temperature range, and ripple current performance.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: AFK338M16P44T-F

The AFK338M16P44T-F is the direct functional equivalent of the AVGA338M16P44T-F with superior performance characteristics. Both parts maintain identical electrical specifications (3300 µF, 16 V, ±20% tolerance) and physical dimensions (0.630" diameter, 0.669" height). The AFK338M16P44T-F offers significant improvements: ESR is reduced from 190 mOhm to 35 mOhm, operational lifetime is extended from 2000 hours to 5000 hours at 105°C, and ripple current capability increases from 950 mA to 1.35 A at 120 Hz. The operating temperature range extends to -55°C, providing broader environmental compatibility. The part carries AEC-Q200 automotive qualification and is currently in active production status, ensuring long-term availability. Packaging is supplied in Tape & Reel format suitable for automated assembly processes.

Secondary Substitute: AFK338M16P44VT-F

The AFK338M16P44VT-F provides equivalent electrical performance to the AFK338M16P44T-F with identical capacitance, voltage, tolerance, ESR, lifetime, and temperature range specifications. This variant differs in physical height (0.681" versus 0.669") and surface mount land size (0.327" L x 0.374" W versus 0.669" L x 0.748" W). The AFK338M16P44VT-F is suitable for applications where the slightly increased height and modified land pattern are compatible with PCB layout constraints. This part also carries AEC-Q200 automotive qualification and is in active production.

Selection Basis:

Both substitute parts are active products from the same manufacturer, ensuring procurement continuity and technical support. The transition from the obsolete AVGA series to the active AFK series provides improved reliability metrics and extended operational life. All three parts maintain ROHS3 compliance and unlimited moisture sensitivity rating. Selection between AFK338M16P44T-F and AFK338M16P44VT-F depends on PCB footprint compatibility and physical space constraints.

Frequently Asked Questions (FAQ)

Q: Can the AFK338M16P44T-F directly replace the AVGA338M16P44T-F in existing designs?

A: Yes. Both parts share identical capacitance (3300 µF), voltage rating (16 V), tolerance (±20%), physical diameter (0.630"), and height (0.669"). The AFK338M16P44T-F is a direct pin-compatible and footprint-compatible substitute. The improved ESR and extended lifetime provide enhanced performance without design modification.

Q: What is the difference between AFK338M16P44T-F and AFK338M16P44VT-F?

A: Both parts have identical electrical specifications and ESR characteristics. The primary differences are physical height (0.669" versus 0.681") and surface mount land size. The AFK338M16P44VT-F has a smaller land pattern (0.327" L x 0.374" W) compared to the AFK338M16P44T-F (0.669" L x 0.748" W). Selection depends on PCB layout requirements and available mounting space.

Q: Why is the ESR specification measured at different frequencies?

A: The AVGA338M16P44T-F specifies ESR at 120 Hz (190 mOhm), while the AFK series specifies ESR at 100 kHz (35 mOhm). ESR varies with frequency; lower frequency measurements typically show higher values. The AFK series measurement at 100 kHz represents performance in higher-frequency applications and demonstrates superior low-impedance characteristics across the operating frequency range.

Q: Are the substitute parts suitable for automotive applications?

A: Yes. Both AFK338M16P44T-F and AFK338M16P44VT-F carry AEC-Q200 automotive qualification, making them suitable for automotive-grade applications. The AVGA338M16P44T-F does not specify automotive qualification.

Q: What is the impact of the extended operating temperature range (-55°C to 105°C) in the substitute parts?

A: The substitute parts extend the lower operating temperature limit from -40°C to -55°C, providing compatibility with applications requiring operation in colder environments. The upper temperature limit remains 105°C. This extended range does not affect performance in applications operating within the original -40°C to 105°C range.

Q: How does the increased ripple current capability affect circuit design?

A: The substitute parts support higher ripple current (1.35 A at 120 Hz versus 950 mA), indicating improved thermal performance and lower internal heating. This allows the capacitor to handle higher AC current stress without exceeding temperature limits, beneficial in high-ripple-current applications such as power supply filtering and energy storage circuits.

Q: What packaging format should be selected for production?

A: The AFK338M16P44T-F and AFK338M16P44VT-F are supplied in Tape & Reel (TR) format, standard for automated surface mount assembly. The original AVGA338M16P44T-F was supplied in bulk packaging. Tape & Reel format is preferred for high-volume manufacturing and automated pick-and-place equipment.

Q: Are there any compliance or certification differences between the parts?

A: All three parts are ROHS3 compliant, REACH unaffected, and classified as EAR99 for export control purposes. The substitute parts additionally carry AEC-Q200 automotive qualification. All parts have unlimited moisture sensitivity level (MSL 1).