AFK476M2AH32B-F Equivalent & Substitute Parts

Part Overview

The AFK476M2AH32B-F is a 47 µF, 100 V aluminum electrolytic capacitor in surface mount radial can package, manufactured by Cornell Dubilier Electronics (CDE). This component is rated for automotive applications with AEC-Q200 compliance and operates across -55°C to 105°C. The part is currently obsolete, necessitating identification of equivalent and substitute parts for ongoing production and maintenance requirements. Alternative parts with identical or superior electrical and mechanical characteristics are available from both CDE and Panasonic.

Key Parameters

Parameter	Value
Capacitance	47 µF
Voltage Rating	100 V
Tolerance	±20%
ESR @ 100 kHz	320 mOhm
Lifetime @ 105°C	5000 Hrs
Operating Temperature Range	-55°C to 105°C
Case Size (Diameter)	0.492" (12.50 mm)
Height (Seated)	0.551" (14.00 mm)
Surface Mount Land Size	0.531" L x 0.590" W (13.50 mm x 15.00 mm)
Ripple Current @ 120 Hz	375 mA
Ripple Current @ 100 kHz	500 mA
Package Type	Radial, Can - SMD
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
MSL Rating	1 (Unlimited)
Automotive Rating	AEC-Q200

Substitute Part Grouping Explanation

Substitution validity for the AFK476M2AH32B-F is determined by exact matching across the following critical parameters: capacitance (47 µF), voltage rating (100 V), tolerance (±20%), case size (0.492" diameter, 0.551" height), surface mount land dimensions, ripple current specifications (375 mA @ 120 Hz, 500 mA @ 100 kHz), operating temperature range (-55°C to 105°C), lifetime rating (5000 Hrs @ 105°C), and compliance certifications (AEC-Q200, ROHS3, MSL-1).

All identified substitutes maintain these parameters identically. The primary differentiator among substitute parts is packaging format (Tape & Reel vs. Bulk) and manufacturer. ESR specifications and surface mount land dimensions vary slightly between Panasonic alternatives; however, these remain within acceptable equivalency for the stated application category.

Parameter Comparison

Parameter	AFK476M2AH32B-F (Main)	AFK476M2AH32T-F	EEE-FK2A470AQ	EEV-FK2A470Q
Manufacturer	CDE	CDE	Panasonic	Panasonic
Capacitance	47 µF	47 µF	47 µF	47 µF
Voltage Rating	100 V	100 V	100 V	100 V
Tolerance	±20%	±20%	±20%	±20%
Operating Temperature Range	-55°C to 105°C	-55°C to 105°C	-55°C to 105°C	-55°C to 105°C
Lifetime @ 105°C	5000 Hrs	5000 Hrs	5000 Hrs	5000 Hrs
Case Size (Dia)	0.492" (12.50 mm)	0.492" (12.50 mm)	0.492" (12.50 mm)	0.492" (12.50 mm)
Height (Seated)	0.551" (14.00 mm)	0.551" (14.00 mm)	0.551" (14.00 mm)	0.551" (14.00 mm)
Ripple Current @ 120 Hz	375 mA	375 mA	375 mA	375 mA
Ripple Current @ 100 kHz	500 mA	500 mA	500 mA	500 mA
Impedance	320 mOhms	320 mOhms	320 mOhms	320 mOhms
Surface Mount Land Size	0.531" L x 0.590" W (13.50 x 15.00 mm)	0.531" L x 0.590" W (13.50 x 15.00 mm)	0.531" L x 0.531" W (13.50 x 13.50 mm)	0.531" L x 0.531" W (13.50 x 13.50 mm)
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
AEC-Q200	Yes	Yes	Yes	Yes
MSL Rating	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Packaging	Bulk	Tape & Reel (TR)	Tape & Reel (TR)	Tape & Reel (TR)
Product Status	Obsolete	Active	Active	Active

Engineering Selection Recommendations

Primary Replacement (CDE Source): AFK476M2AH32T-F is the direct CDE equivalent, offering identical electrical specifications and mechanical dimensions while in active production status with Tape & Reel packaging. This part maintains continuity with the original manufacturer platform.

Alternative Manufacturers: EEE-FK2A470AQ and EEV-FK2A470Q from Panasonic provide functional equivalence with all critical electrical and thermal parameters matching specification. Both parts hold active product status and AEC-Q200 automotive certification. Surface mount land dimensions on Panasonic parts differ slightly (0.531" x 0.531" versus 0.531" x 0.590"), requiring PCB footprint evaluation.

All substitute parts are ROHS3 compliant and carry MSL-1 ratings consistent with the original component.

Frequently Asked Questions (FAQ)

Q: Can AFK476M2AH32T-F directly replace AFK476M2AH32B-F? A: Yes. AFK476M2AH32T-F is the active production equivalent with identical electrical specifications, case dimensions, and performance ratings. The difference is packaging format (Tape & Reel vs. Bulk) and product status (Active vs. Obsolete).

Q: Are Panasonic parts (EEE-FK2A470AQ, EEV-FK2A470Q) compatible substitutes? A: Yes, both Panasonic parts are functionally equivalent with matching capacitance, voltage, tolerance, operating temperature, lifetime rating, and ripple current specifications. PCB designers should confirm surface mount land dimensions; Panasonic parts use square landing pads (0.531" x 0.531") compared to the rectangular pad on the original (0.531" x 0.590").

Q: What is the difference between EEE-FK2A470AQ and EEV-FK2A470Q? A: Both are Panasonic 47 µF, 100 V surface mount aluminum electrolytic capacitors with identical electrical and thermal characteristics. Base product numbers (EEE-FK vs. EEV-FK) indicate internal design variants within Panasonic's product family. Selection between these parts does not affect circuit performance.

Q: Is AEC-Q200 certification maintained across all substitutes? A: Yes. All identified substitutes carry AEC-Q200 automotive qualification, qualifying them for use in automotive bypass and decoupling applications.

Q: What is the MSL rating significance? A: All parts carry MSL-1 (Unlimited moisture sensitivity level), meaning no moisture reflow precautions are required for assembly.

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