Equivalent & Substitute Parts for 157SML035MD8

Part Overview

The 157SML035MD8 is a 150 µF, 35 V aluminum electrolytic capacitor in surface mount radial can package manufactured by Cornell Dubilier / Illinois Capacitor. This component belongs to the SML series and is classified as Active product status. The part is designed for general purpose applications requiring stable capacitance and low equivalent series resistance in compact form factors.

Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained across different product series while meeting or exceeding the original specifications. The 157SML035MD8 has one qualified substitute within the same manufacturer portfolio.

Substiute Parts

157SML035MD8

Cornell Dubilier / Illinois CapacitorIn Stock: 959157SML035MD8 Datasheet

Current PartRFQ

157AXZ035MD8

Cornell Dubilier / Illinois CapacitorIn Stock: 8869157AXZ035MD8 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 157SML035MD8 is determined by the following critical parameters:

Electrical Equivalence Requirements:

• Capacitance value: 150 µF (exact match required)
• Voltage rating: 35 V (minimum, equal or higher acceptable)
• Tolerance: ±20% (matching tolerance band)
• Polarization: Polar (must match)

Mechanical Compatibility Requirements:

• Package type: Radial, Can - SMD (exact match required)
• Case diameter: 0.315" (8.00 mm) (exact match required)
• Height seated maximum: 0.417" (10.60 mm) (exact match required)
• Surface mount land size: 0.327" L x 0.327" W (8.30 mm x 8.30 mm) (exact match required)
• Mounting type: Surface Mount (exact match required)

Compliance Requirements:

• RoHS3 Compliant status (required)
• MSL rating: 1 or better (required)

The 157AXZ035MD8 qualifies as a direct substitute because it maintains identical electrical ratings, mechanical dimensions, and compliance certifications while offering enhanced performance characteristics in specific parameters.

Parameter Comparison

Engineering Selection Recommendations

Primary Part Selection (157SML035MD8): The 157SML035MD8 is the specified component for applications with design requirements matching the SML series characteristics. This part maintains Active product status with full RoHS3 compliance and unlimited moisture sensitivity rating, suitable for standard general purpose applications within the defined operating temperature range of -40°C to 85°C.

Substitute Part Selection (157AXZ035MD8): The 157AXZ035MD8 serves as a direct substitute when the primary part is unavailable. This part is from the AXZ series and provides identical electrical and mechanical specifications with enhanced performance in three areas: extended operating temperature range (-55°C to 105°C), higher temperature lifetime rating (2000 Hrs @ 105°C versus 2000 Hrs @ 85°C), and increased ripple current capacity at both low frequency (300 mA @ 120 Hz versus 220 mA) and high frequency (600 mA @ 100 kHz versus 330 mA). Both parts maintain Active product status, ROHS3 compliance, and MSL rating 1.

Compliance Verification: Both parts are ROHS3 compliant, REACH unaffected, and classified under ECCN EAR99 with HTSUS code 8532.22.0020. Substitution does not introduce compliance risk.

Frequently Asked Questions (FAQ)

Q: Can the 157AXZ035MD8 be used as a direct replacement for the 157SML035MD8 in existing designs?

A: Yes. The 157AXZ035MD8 maintains identical capacitance (150 µF), voltage rating (35 V), tolerance (±20%), and mechanical dimensions (0.315" diameter, 0.417" height, 0.327" x 0.327" land size). Both parts use identical surface mount radial can packaging and are mounted identically. The substitute part is electrically and mechanically compatible without PCB redesign.

Q: What are the key differences between these two parts?

A: The primary differences are series designation (SML versus AXZ) and performance enhancements in the substitute. The 157AXZ035MD8 offers extended operating temperature range (-55°C to 105°C versus -40°C to 85°C), higher temperature lifetime rating (2000 Hrs @ 105°C versus 2000 Hrs @ 85°C), and increased ripple current capacity. ESR values are equivalent (1.547 Ohm versus 1.55 Ohm @ 120 Hz).

Q: Are there any applications where the 157SML035MD8 cannot be substituted with the 157AXZ035MD8?

A: No. The substitute part meets or exceeds all electrical and mechanical specifications of the primary part. The enhanced temperature range and ripple current capacity of the substitute make it suitable for all applications where the primary part is specified.

Q: What is the significance of the different series designations (SML versus AXZ)?

A: Series designation indicates the product line within Cornell Dubilier / Illinois Capacitor's portfolio. Both SML and AXZ series are Active products meeting identical compliance requirements. The series difference reflects internal product categorization but does not affect electrical or mechanical compatibility for this specific part number combination.

Q: Are both parts available in the same packaging options?

A: The 157SML035MD8 is available in standard packaging (949 Pcs in stock). The 157AXZ035MD8 is available in bulk packaging (8782 Pcs in stock). Both use identical surface mount radial can package specifications. Packaging format does not affect component performance or compatibility.

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

A: Yes. Both the 157SML035MD8 and 157AXZ035MD8 are rated MSL 1 (Unlimited), indicating no moisture sensitivity restrictions for storage, handling, or reflow processes.

Q: Can the 157AXZ035MD8 be used in high-temperature applications beyond 85°C?

A: The 157AXZ035MD8 is rated for continuous operation up to 105°C with a lifetime rating of 2000 Hrs @ 105°C. The 157SML035MD8 is rated only to 85°C. For applications requiring operation above 85°C, the 157AXZ035MD8 is the appropriate selection.