477SAK016M Equivalent & Substitute Parts Reference

Part Overview

The 477SAK016M is a 470 µF, 16 V aluminum electrolytic capacitor manufactured by Cornell Dubilier / Illinois Capacitor in the SAK series. This radial, through-hole component is designed for general-purpose applications with a rated lifetime of 2000 hours at 85°C. The part is currently active in production with 915 pieces in stock.

Equivalent and substitute parts are identified when design requirements permit voltage uprating, enhanced thermal performance, or alternative manufacturer sourcing while maintaining the same capacitance value, tolerance, and mechanical compatibility.

Substiute Parts

477SAK016M

Cornell Dubilier / Illinois CapacitorIn Stock: 1005477SAK016M Datasheet

Current PartRFQ

25WA470MEFC10X9

RubyconIn Stock: 224625WA470MEFC10X9 Datasheet

UpgradeRFQ

25WXA470MEFC10X9

RubyconIn Stock: 582925WXA470MEFC10X9 Datasheet

UpgradeRFQ

SK471M016ST

Cornell Dubilier Electronics (CDE)In Stock: 8705SK471M016ST Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility is determined by the following criteria:

Upgrade Substitutes (25WA470MEFC10X9, 25WXA470MEFC10X9): These parts share identical capacitance (470 µF), tolerance (±20%), lead spacing (5.00 mm), case diameter (10.00 mm), and mounting type (through-hole radial). Both are rated at 25 V, providing voltage margin above the 16 V requirement. Both maintain 2000-hour lifetime at elevated temperature and ROHS3 compliance. These parts are direct functional upgrades suitable for applications where higher voltage rating is acceptable.

Similar Substitute (SK471M016ST): This Cornell Dubilier Electronics part maintains the same voltage rating (16 V), capacitance (470 µF), tolerance (±20%), lead spacing (5.00 mm), and case diameter (10.00 mm). The primary difference is case height (15.00 mm versus 10.50 mm for the main part), which affects board layout compatibility. ESR is lower at 450 mOhm @ 120 Hz compared to 706 mOhm, and ripple current rating is higher at 470 mA @ 120 Hz.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Same Voltage Rating): The SK471M016ST from Cornell Dubilier Electronics is a direct same-voltage substitute. Both the 477SAK016M and SK471M016ST operate at 16 V with identical capacitance and tolerance. Both are active products with ROHS3 compliance. The SK471M016ST offers lower ESR (450 mOhm versus 706 mOhm) and higher ripple current capability (470 mA versus 400 mA at 120 Hz). However, the SK471M016ST has a greater case height (15.00 mm versus 10.50 mm), which requires verification of available board space.

For Voltage-Uprated Applications: The 25WXA470MEFC10X9 from Rubycon is an active-status upgrade substitute rated at 25 V with extended operating temperature range (-55°C ~ 105°C) and 2000-hour lifetime at 105°C. This part carries AEC-Q200 automotive qualification. The 25WXA470MEFC10X9 maintains identical mechanical dimensions and lead spacing as the main part, enabling direct board-level substitution. This part is suitable for applications requiring enhanced thermal margin or automotive-grade reliability.

The 25WA470MEFC10X9 from Rubycon is also a 25 V upgrade option with identical mechanical compatibility but is marked "Not For New Designs," limiting its use to legacy system support or inventory management scenarios.

Frequently Asked Questions (FAQ)

Q: Can the 25WA470MEFC10X9 be used in place of the 477SAK016M? A: Yes, from an electrical and mechanical standpoint. Both parts have 470 µF capacitance, ±20% tolerance, 5.00 mm lead spacing, and 10.00 mm case diameter. The 25WA470MEFC10X9 is rated at 25 V, providing voltage margin above the 16 V requirement. However, the 25WA470MEFC10X9 is marked "Not For New Designs," so it is suitable only for replacement or legacy applications, not new product development.

Q: What is the primary advantage of the 25WXA470MEFC10X9 over the 477SAK016M? A: The 25WXA470MEFC10X9 offers three key advantages: (1) higher voltage rating (25 V versus 16 V), (2) extended operating temperature range (-55°C ~ 105°C versus -40°C ~ 85°C), and (3) longer lifetime at elevated temperature (2000 hours at 105°C versus 2000 hours at 85°C). Additionally, it carries AEC-Q200 automotive qualification. Mechanical dimensions are identical, enabling direct board substitution.

Q: Why does the SK471M016ST have a different case height? A: The SK471M016ST has a case height of 15.00 mm compared to 10.50 mm for the 477SAK016M, despite both having the same 10.00 mm case diameter. This height difference is a design characteristic of the SK series and must be verified against available board clearance before substitution.

Q: Are all substitute parts ROHS3 compliant? A: Yes. The 477SAK016M, 25WA470MEFC10X9, 25WXA470MEFC10X9, and SK471M016ST are all ROHS3 compliant with MSL rating of 1 (Unlimited).

Q: Which substitute part is recommended for automotive applications? A: The 25WXA470MEFC10X9 is the only substitute part with AEC-Q200 automotive qualification. It is active in production and suitable for automotive-grade system designs.

Q: Can the SK471M016ST be used if board space is limited? A: No. The SK471M016ST has a maximum seated height of 15.00 mm, which is 4.50 mm taller than the 477SAK016M (10.50 mm). Substitution requires verification that the additional height does not conflict with board layout or component clearance constraints.