Equivalent & Substitute Parts for 227SML016MD8

Part Overview

The 227SML016MD8 is a 220 µF, 16 V aluminum electrolytic capacitor in surface mount radial can package manufactured by Cornell Dubilier / Illinois Capacitor. This component is classified as Active and is designed for bypass and decoupling applications in electronic circuits. The part operates across a temperature range of -40°C to 85°C with a rated lifetime of 2000 hours at 85°C.

Substitute parts are identified when equivalent capacitance and tolerance values are maintained while allowing for higher voltage ratings, improved electrical characteristics, or extended operational lifetimes. Such alternatives provide design flexibility for applications requiring enhanced performance margins or broader operating conditions.

Substiute Parts

227SML016MD8

Cornell Dubilier / Illinois CapacitorIn Stock: 1128227SML016MD8 Datasheet

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ATB227M025

Cornell Dubilier / Illinois CapacitorIn Stock: 32834ATB227M025 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the 227SML016MD8 is permissible when the following criteria are satisfied:

Mandatory Matching Parameters:

• Capacitance value: 220 µF (exact match required)
• Tolerance: ±20% (exact match required)
• Polarization: Polar (exact match required)
• Package / Case: Radial, Can - SMD (exact match required)
• Mounting Type: Surface Mount (exact match required)
• Physical diameter: 0.315" (8.00mm) (exact match required)

Allowable Variation Parameters:

• Voltage - Rated: May be equal to or greater than 16 V
• ESR (Equivalent Series Resistance): May be lower than or equal to 1.507 Ohm @ 120Hz
• Lifetime @ Temp.: May be equal to or greater than 2000 Hrs @ 85°C
• Operating Temperature range: May be equal to or broader than -40°C ~ 85°C
• Ripple Current: May be equal to or greater than specified values
• Height - Seated: Minor variations acceptable within PCB assembly constraints
• Surface Mount Land Size: Minor variations acceptable within PCB design tolerances

The ATB227M025 qualifies as a substitute part based on these criteria.

Parameter Comparison

Engineering Selection Recommendations

Substitution Feasibility:

The ATB227M025 is a direct substitute for the 227SML016MD8 in applications where the original part is specified. Both components maintain identical capacitance, tolerance, polarization, and physical form factor. The substitute part provides enhanced electrical performance through reduced ESR and increased ripple current handling capacity.

Voltage Rating Consideration:

The ATB227M025 operates at a rated voltage of 25 V compared to the 16 V rating of the 227SML016MD8. This higher voltage rating provides additional design margin and does not create incompatibility in circuits designed for 16 V operation. The substitute part is suitable for direct replacement in existing designs.

Thermal and Lifetime Performance:

The ATB227M025 demonstrates extended operational lifetime (5000 hours at 105°C versus 2000 hours at 85°C) and operates across a broader temperature range (-55°C to 105°C versus -40°C to 85°C). These characteristics make the substitute part suitable for applications requiring enhanced reliability or operation in elevated temperature environments.

Compliance Status:

Both the main part and substitute part are ROHS3 Compliant, REACH Unaffected, and classified under ECCN EAR99. Both components carry MSL rating of 1 (Unlimited), indicating no moisture sensitivity restrictions during storage or handling.

Physical Compatibility:

The substitute part height of 0.413" (10.50mm) is lower than the main part height of 0.433" (11.00mm), ensuring compatibility with existing PCB assembly designs. Surface mount land size variations between the two parts are minor and fall within standard PCB design tolerances.

Frequently Asked Questions (FAQ)

Q: Can the ATB227M025 be used as a direct replacement for the 227SML016MD8 on existing PCBs?

A: Yes. Both parts share identical capacitance (220 µF), tolerance (±20%), physical diameter (8.00mm), and surface mount package configuration. The substitute part's lower height (10.50mm versus 11.00mm) ensures mechanical compatibility with existing PCB layouts.

Q: What is the significance of the higher 25 V rating on the ATB227M025?

A: The 25 V rating on the substitute part provides increased voltage margin in circuits originally designed for 16 V operation. This does not create incompatibility; rather, it allows the component to operate safely in the same electrical environment with additional headroom.

Q: How do the ESR values differ between these parts?

A: The 227SML016MD8 has an ESR of 1.507 Ohm @ 120Hz, while the ATB227M025 has an ESR of 960 mOhm @ 120Hz. The lower ESR of the substitute part results in reduced heat generation and improved performance in high-frequency ripple current applications.

Q: Are there any temperature range limitations when substituting the ATB227M025?

A: No. The ATB227M025 operates across -55°C to 105°C, which encompasses the original part's operating range of -40°C to 85°C. The substitute part is suitable for applications across the full original temperature specification and beyond.

Q: Do both parts have the same moisture sensitivity classification?

A: Yes. Both the 227SML016MD8 and ATB227M025 carry MSL rating 1 (Unlimited), indicating no moisture sensitivity restrictions. Both parts can be stored and handled without special moisture control measures.

Q: What is the difference in ripple current capacity?

A: The 227SML016MD8 supports 280 mA @ 120 Hz and 420 mA @ 100 kHz. The ATB227M025 supports 420 mA @ 120 Hz and 600 mA @ 100 kHz. The substitute part accommodates higher ripple currents across both frequency ranges.

Q: Are there any RoHS or regulatory compliance differences?

A: No. Both parts are ROHS3 Compliant, REACH Unaffected, and classified under ECCN EAR99. Regulatory compliance status is identical between the main part and substitute.

Q: Can the ATB227M025 be used in applications requiring extended operational lifetime?

A: Yes. The ATB227M025 is rated for 5000 hours at 105°C, compared to 2000 hours at 85°C for the 227SML016MD8. The substitute part is suitable for applications requiring enhanced reliability and extended service life.