ESRE151M06B Equivalent & Substitute Parts Reference

Part Overview

The ESRE151M06B is a 150 µF, 6.3 V aluminum polymer surface mount capacitor manufactured by Cornell Dubilier Electronics (CDE). This component is designed for bypass and decoupling applications in electronic circuits. The part is classified as obsolete, making identification of functionally equivalent substitutes necessary for ongoing design support, maintenance, and production continuity. Equivalent alternatives must maintain the same electrical performance characteristics and physical form factor to ensure direct replacement capability.

Key Parameters

Parameter	Value
Capacitance	150 µF
Voltage Rating	6.3 V
Tolerance	±20%
Type	Aluminum Polymer
ESR (Equivalent Series Resistance)	12 mOhm
Package / Case	2917 (7343 Metric)
Mounting Type	Surface Mount
Operating Temperature Range	-55°C to 105°C
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution of the ESRE151M06B is based on strict electrical and mechanical parameter matching. The following criteria determine functional equivalence:

Critical Matching Parameters:

Capacitance value: 150 µF (exact match required)
Voltage rating: 6.3 V (minimum requirement; higher ratings acceptable)
Tolerance: ±20% (matching tolerance specification)
Package / Case: 2917 (7343 Metric) (identical physical form factor)
Mounting type: Surface Mount (identical mounting method)
ESR: 12 mOhm (matching electrical performance)
Operating temperature range: -55°C to 105°C (minimum requirement)
RoHS compliance: ROHS3 Compliant (regulatory requirement)

The substitute part EEF-CX0J151XR meets all critical matching parameters and is therefore classified as a direct equivalent for the ESRE151M06B.

Parameter Comparison

Parameter	ESRE151M06B (CDE)	EEF-CX0J151XR (Panasonic)	Match Status
Capacitance	150 µF	150 µF	Exact Match
Voltage Rating	6.3 V	6.3 V	Exact Match
Tolerance	±20%	±20%	Exact Match
Type	Aluminum Polymer	Aluminum Polymer	Exact Match
ESR @ 100 kHz	12 mOhm	12 mOhm	Exact Match
Package / Case	2917 (7343 Metric)	2917 (7343 Metric)	Exact Match
Mounting Type	Surface Mount	Surface Mount	Exact Match
Operating Temperature	-55°C to 105°C	-55°C to 105°C	Exact Match
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Exact Match
Ripple Current @ 100 kHz	3.3 A	5.6 A	Substitute Exceeds
Lifetime @ 105°C	1000 Hrs	2000 Hrs	Substitute Exceeds
Height - Seated (Max)	0.161" (4.10 mm)	0.075" (1.90 mm)	Substitute Lower Profile
Product Status	Obsolete	Active	Substitute Active

Engineering Selection Recommendations

The EEF-CX0J151XR from Panasonic Electronic Components is a direct functional equivalent to the obsolete ESRE151M06B. Selection of this substitute is supported by the following engineering factors:

Electrical Compatibility: All critical electrical parameters match exactly, including capacitance, voltage rating, tolerance, and ESR. The substitute meets or exceeds performance specifications in ripple current handling (5.6 A versus 3.3 A) and operational lifetime (2000 Hrs versus 1000 Hrs at 105°C).

Physical Compatibility: Both components use identical 2917 (7343 Metric) surface mount packaging with matching land sizes (0.287" L x 0.169" W / 7.30 mm x 4.30 mm). The substitute features a lower seated height (0.075" / 1.90 mm versus 0.161" / 4.10 mm), which provides design flexibility for space-constrained applications.

Regulatory Compliance: The EEF-CX0J151XR maintains ROHS3 compliance and REACH unaffected status, meeting current environmental and regulatory requirements.

Product Status: The substitute is classified as active, ensuring long-term availability and supply chain continuity compared to the obsolete ESRE151M06B.

Frequently Asked Questions (FAQ)

Q: Can the EEF-CX0J151XR be used as a direct replacement for the ESRE151M06B without circuit modification?

A: Yes. The EEF-CX0J151XR is electrically and mechanically equivalent. All critical parameters match exactly, and the component uses the same 2917 (7343 Metric) surface mount package with identical land sizes. No circuit modifications are required.

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

A: The primary differences are product status and performance enhancements. The EEF-CX0J151XR is an active product with superior ripple current rating (5.6 A versus 3.3 A at 100 kHz) and extended operational lifetime (2000 Hrs versus 1000 Hrs at 105°C). The substitute also features a lower seated height (1.90 mm versus 4.10 mm), which may benefit space-constrained designs.

Q: Are there any packaging differences that affect assembly?

A: The EEF-CX0J151XR is supplied in Tape & Reel (TR) packaging, while the ESRE151M06B packaging format is not specified. Both components use identical surface mount land patterns (0.287" L x 0.169" W / 7.30 mm x 4.30 mm), ensuring compatibility with existing PCB designs and assembly equipment.

Q: Does the substitute meet the same regulatory requirements?

A: Yes. The EEF-CX0J151XR is ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory standards equivalent to the original part.

Q: Why is the ripple current rating higher on the substitute?

A: The EEF-CX0J151XR is rated for 5.6 A ripple current at 100 kHz compared to 3.3 A for the ESRE151M06B. This represents an enhancement in the substitute's design and does not create compatibility issues; it indicates improved thermal performance and current handling capability.

Q: Is the lower seated height of the substitute a concern?

A: No. The lower seated height (1.90 mm versus 4.10 mm) of the EEF-CX0J151XR is a design advantage that provides additional clearance in space-constrained applications. It does not affect electrical performance or compatibility with existing PCB layouts.

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