SEK4R7M160ST

Part Overview

The SEK4R7M160ST is a 4.7 µF, 160 V aluminum electrolytic capacitor manufactured by Cornell Dubilier Electronics (CDE) in a radial, can configuration. This through-hole component operates across a temperature range of -40°C to 105°C and is rated for 2000 hours at 105°C. The part is Active status and ROHS3 compliant, serving general-purpose applications requiring stable capacitive performance in consumer and industrial electronics.

Alternative components become necessary when design specifications require higher voltage ratings, extended operational lifetime, improved ripple current handling, or when the primary manufacturer part experiences supply constraints.

Substiute Parts

SEK4R7M160ST

Cornell Dubilier Electronics (CDE)In Stock: 924SEK4R7M160ST Datasheet

Current PartRFQ

200LLE4R7MEFC6.3X11

RubyconIn Stock: 7824200LLE4R7MEFC6.3X11 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The Rubycon 200LLE4R7MEFC6.3X11 qualifies as a substitute based on the following criteria:

Matching Parameters:

• Capacitance: 4.7 µF (identical)
• Tolerance: ±20% (identical)
• Polarization: Polar (identical)
• Operating Temperature: -40°C ~ 105°C (identical)
• Lead Spacing: 0.098" (2.50 mm) (identical)
• Size / Dimension: 0.248" Dia (6.30 mm) (identical)
• Mounting Type: Through Hole (identical)
• Package / Case: Radial, Can (identical)
• RoHS Status: ROHS3 Compliant (identical)
• Moisture Sensitivity Level: 1 (Unlimited) (identical)

Enhanced Parameters:

• Voltage - Rated: 200 V (higher than 160 V primary part)
• Lifetime @ 105°C: 12000 Hrs (extended from 2000 Hrs)
• Ripple Current @ 120 Hz: 49 mA (improved from 43 mA)
• Ripple Current @ 100 kHz: 98 mA (improved performance)

The substitute maintains physical compatibility and electrical base specifications while providing improved voltage margin and operational lifetime, making it suitable for equivalent or upgraded applications.

Parameter Comparison

Engineering Selection Recommendations

Both the SEK4R7M160ST and the 200LLE4R7MEFC6.3X11 are Active status components with ROHS3 compliance and REACH unaffected designation, indicating current production support and regulatory alignment.

The Rubycon 200LLE4R7MEFC6.3X11 provides a forward-compatible substitution option with superior voltage headroom (200 V versus 160 V) and extended operational lifetime (12000 Hrs versus 2000 Hrs at 105°C). These enhancements reduce stress margins in high-reliability applications while maintaining identical physical form factor and core electrical specifications.

The CDE SEK4R7M160ST remains the primary selection for cost-optimized designs where the specified 160 V rating and 2000-hour lifetime are sufficient. Selection between these components depends on application voltage stress levels, expected operational duration, and availability.

Frequently Asked Questions (FAQ)

Can the Rubycon 200LLE4R7MEFC6.3X11 directly replace the SEK4R7M160ST in existing designs?

Yes, the Rubycon substitute maintains identical physical dimensions (0.248" diameter, 0.098" lead spacing), capacitance (4.7 µF), tolerance (±20%), operating temperature range (-40°C to 105°C), and mounting configuration (through-hole radial). Maximum seated height differs by 0.079" (2.00 mm), which does not affect compatibility in standard through-hole PCB applications with standard component clearances.

What are the key substitution criteria for 4.7 µF aluminum electrolytic capacitors?

Primary substitution parameters include matching capacitance (4.7 µF ±tolerance), compatible voltage rating (equal or higher), identical or improved ripple current specifications, matching physical form factor and lead spacing (0.098" / 2.50 mm), identical mounting type (through-hole), and equivalent or enhanced operational lifetime. RoHS and regulatory compliance status must match design requirements.

Is the higher voltage rating of the Rubycon part advantageous?

The 200 V voltage rating of the Rubycon 200LLE4R7MEFC6.3X11 provides increased voltage stress margin compared to the 160 V CDE part when both are used in 160 V applications. Extended lifetime (12000 Hrs versus 2000 Hrs at 105°C) reduces component aging effects in continuous-operation environments.

Are there physical constraints when substituting with the taller Rubycon component?

The Rubycon substitute is 0.512" (13.00 mm) tall versus 0.433" (11.00 mm) for the CDE part, representing a 2.00 mm height difference. This increased height must be verified against PCB layout constraints, enclosure clearances, and adjacent component positioning in the target application.

Do both parts support the same ripple current specifications?

The Rubycon 200LLE4R7MEFC6.3X11 provides higher ripple current capacity (49 mA @ 120 Hz, 98 mA @ 100 kHz) compared to the CDE SEK4R7M160ST (43 mA @ 120 Hz, 68.8 mA @ 10 kHz), enabling use in higher thermal stress conditions.