AFK157M10D16B-F Equivalent & Substitute Parts

Part Overview

The AFK157M10D16B-F is a 150 µF, 10 V aluminum electrolytic capacitor in surface mount radial can package manufactured by Cornell Dubilier Electronics (CDE). This component is designed for automotive, bypass, and decoupling applications with AEC-Q200 automotive qualification. The part is discontinued at DiGi Electronics, necessitating identification of functionally equivalent alternatives from active manufacturers to maintain supply chain continuity and design compatibility.

Substiute Parts

AFK157M10D16B-F

Cornell Dubilier Electronics (CDE)In Stock: 763AFK157M10D16B-F Datasheet

Current PartRFQ

EEE-FK1A151AP

Panasonic Electronic ComponentsIn Stock: 6609EEE-FK1A151AP Datasheet

DirectRFQ

EEE-FK1A151P

Panasonic Electronic ComponentsIn Stock: 63462EEE-FK1A151P Datasheet

DirectRFQ

UCL1A151MCL1GS

NichiconIn Stock: 3398UCL1A151MCL1GS Datasheet

DirectRFQ

UUD1A151MCL1GS

NichiconIn Stock: 10874UUD1A151MCL1GS Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the AFK157M10D16B-F is determined by strict equivalence across the following parameters:

Mandatory Match Criteria:

• Capacitance: 150 µF (exact)
• Voltage Rating: 10 V (exact)
• Tolerance: ±20% (exact or tighter)
• Package Type: Radial, Can - SMD (exact)
• Diameter: 0.248" (6.30mm) (exact)
• Polarization: Polar (exact)
• Mounting Type: Surface Mount (exact)

Allowable Variation Criteria:

• Height - Seated (Max): Must not exceed 0.240" (6.10mm)
• Surface Mount Land Size: Minor variations acceptable if within standard SMD pad tolerances
• Operating Temperature: Must span -55°C to 105°C minimum
• Lifetime @ Temp.: Must meet or exceed 2000 Hrs @ 105°C
• RoHS Status: Must be ROHS3 Compliant or equivalent
• MSL: Must be Level 1 or equivalent (unlimited)

Electrical Performance Considerations:

• ESR, Ripple Current, and Impedance values are provided for reference but do not disqualify substitutes if core parameters match
• Automotive qualification (AEC-Q200) is noted where applicable but is not a mandatory substitution criterion

All four substitute parts meet these criteria and are confirmed as direct functional equivalents.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitutes for Automotive Applications:

EEE-FK1A151P (Panasonic) and UUD1A151MCL1GS (Nichicon) are the preferred substitutes when the original AFK157M10D16B-F is unavailable. Both parts carry AEC-Q200 automotive qualification, matching the original part's automotive-grade specification. EEE-FK1A151P offers the highest inventory availability (63,423 units) and identical electrical performance characteristics. UUD1A151MCL1GS provides equivalent automotive qualification with REACH compliance status noted.

Secondary Substitute for General Purpose Applications:

EEE-FK1A151AP (Panasonic) is functionally equivalent with active product status and high availability (6,559 units). This variant is suitable for non-automotive applications or where high-temperature reflow processing is specified.

Alternative for Space-Constrained Designs:

UCL1A151MCL1GS (Nichicon) offers a reduced height of 0.228" (5.80mm) compared to the standard 0.240" (6.10mm), providing additional PCB clearance in height-restricted layouts. This part is rated for general purpose applications and does not carry AEC-Q200 automotive qualification.

Compliance Considerations:

All substitute parts are ROHS3 compliant and carry MSL Level 1 (unlimited) moisture sensitivity ratings, matching the original part's environmental compliance profile. UUD1A151MCL1GS is noted as REACH Affected; designs subject to REACH restrictions should prioritize EEE-FK1A151P, EEE-FK1A151AP, or UCL1A151MCL1GS.

Supply Chain Continuity:

The original AFK157M10D16B-F is discontinued at DiGi Electronics. All four substitute parts maintain active product status with established inventory levels, ensuring long-term supply availability for production and field service applications.

Frequently Asked Questions (FAQ)

Q: Can EEE-FK1A151P be used as a direct replacement for AFK157M10D16B-F in automotive circuits?

A: Yes. EEE-FK1A151P meets all mandatory electrical and physical specifications: 150 µF capacitance, 10 V rating, ±20% tolerance, identical package dimensions, and AEC-Q200 automotive qualification. The part is functionally equivalent for automotive bypass and decoupling applications.

Q: What is the difference between EEE-FK1A151P and EEE-FK1A151AP?

A: Both are Panasonic FK series 150 µF, 10 V capacitors with identical core specifications. EEE-FK1A151AP is specified for high-temperature reflow processing. EEE-FK1A151P is the standard variant. Selection depends on manufacturing process requirements. Both are direct substitutes for the original part.

Q: Why does UCL1A151MCL1GS have a lower height (0.228" vs 0.240")?

A: UCL1A151MCL1GS is from Nichicon's UCL series, which uses a different internal construction. The reduced height does not affect electrical performance but provides additional PCB clearance. This part is suitable for space-constrained designs but lacks AEC-Q200 automotive qualification.

Q: Are there any electrical performance differences between the substitute parts?

A: ESR and ripple current ratings vary slightly among substitutes. EEE-FK1A151P and EEE-FK1A151AP maintain 360 mOhms ESR matching the original. UCL1A151MCL1GS offers lower ESR (260 mOhms) and higher ripple current capability (300 mA @ 100 kHz). UUD1A151MCL1GS has slightly higher ESR (440 mOhms) and lower ripple current (230 mA @ 100 kHz). All values remain within acceptable ranges for standard bypass and decoupling applications.

Q: Which substitute has the best inventory availability?

A: EEE-FK1A151P (Panasonic) has the highest inventory level at 63,423 units in stock, followed by UUD1A151MCL1GS (Nichicon) at 10,812 units. Both ensure immediate availability for production requirements.

Q: Is REACH compliance a factor in selecting a substitute?

A: REACH compliance is relevant for designs subject to European Union regulations. UUD1A151MCL1GS is noted as REACH Affected. For REACH-compliant designs, select EEE-FK1A151P, EEE-FK1A151AP, or UCL1A151MCL1GS, all marked as REACH Unaffected.

Q: Can these parts be used interchangeably on the same PCB?

A: Yes, with one consideration: Surface mount land size varies slightly. The original AFK157M10D16B-F specifies 0.260" L x 0.307" W pads, while all substitutes use 0.260" L x 0.260" W pads. Standard SMD pad design tolerances accommodate this variation. Height differences (0.228" to 0.240") are within acceptable reflow and clearance limits for standard PCB designs.

Q: What is the operating temperature range for all substitute parts?

A: All substitute parts operate across -55°C to 105°C, matching the original AFK157M10D16B-F specification. All maintain 2000 hours lifetime at 105°C, ensuring equivalent reliability in thermal cycling and high-temperature applications.