CMLB063T-1R5MS Equivalent & Substitute Parts

Part Overview

The CMLB063T-1R5MS is a 1.5 µH shielded inductor manufactured by Delta Electronics/Cyntec, rated for 11 A continuous current with a maximum DC resistance of 10.5mOhm. This surface mount component is designed for applications requiring compact, shielded inductive filtering in power conversion and signal conditioning circuits. The part is active in production and widely available in inventory. Substitute parts are identified when equivalent electrical performance can be maintained within the specified parameter tolerances while accommodating design constraints such as current rating variations, package dimensions, or supply chain availability.

Substiute Parts

CMLB063T-1R5MS

Delta Electronics/CyntecIn Stock: 1172CMLB063T-1R5MS Datasheet

Current PartRFQ

PA4341.152NLT

Pulse ElectronicsIn Stock: 8029PA4341.152NLT Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CMLB063T-1R5MS is determined by the following critical parameters:

• Inductance Value: Must be 1.5 µH with ±20% tolerance
• Shielding: Must be shielded to maintain electromagnetic isolation
• Mounting Type: Must be surface mount (SMD)
• Inductance Test Frequency: Must be measured at 100 kHz
• Current Rating: Substitute must support minimum 11 A continuous operation
• DC Resistance: Lower or equal DCR is acceptable; higher DCR increases thermal dissipation
• Operating Temperature Range: Must encompass or exceed -55°C to 125°C
• Packaging: Tape & Reel (TR) format for automated assembly compatibility
• Compliance: RoHS3 and REACH compliance required

The PA4341.152NLT from Pulse Electronics meets these substitution criteria with equivalent inductance, shielding, and surface mount configuration. While the current rating is reduced to 9 A and DCR is increased to 15mOhm, the saturation current of 18 A provides adequate margin for transient conditions. Operating temperature range of -40°C to 125°C covers the primary operating window, with reduced low-temperature performance.

Parameter Comparison

Engineering Selection Recommendations

Primary Part (CMLB063T-1R5MS): Recommended for applications requiring the full 11 A continuous current rating and extended low-temperature operation to -55°C. The lower DCR of 10.5mOhm minimizes thermal dissipation and improves efficiency in power conversion circuits. Active production status and high inventory availability (1098 pcs) support immediate procurement.

Substitute Part (PA4341.152NLT): Suitable for applications where continuous current demand does not exceed 9 A and operating temperature remains above -40°C. The higher saturation current (18 A) accommodates transient overcurrent conditions. Pulse Electronics AEC-Q200 rating indicates automotive-grade qualification. Higher inventory availability (7983 pcs) may provide supply chain advantages. Increased DCR requires thermal analysis to confirm acceptable power dissipation in the target application.

Both parts maintain ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1), ensuring compatibility with standard surface mount assembly processes.

Frequently Asked Questions (FAQ)

Q: Can PA4341.152NLT replace CMLB063T-1R5MS in all applications?

A: No. The substitute is suitable only for applications where continuous current does not exceed 9 A and minimum operating temperature is -40°C or higher. The 43% higher DCR increases resistive losses. Verify application current profile and thermal budget before substitution.

Q: What is the impact of the higher DC resistance in PA4341.152NLT?

A: At 9 A continuous current, the PA4341.152NLT dissipates approximately 1.22 W (I²R = 9² × 0.015), compared to 0.95 W for the CMLB063T-1R5MS (11² × 0.0105). This 28% increase in power dissipation requires verification that thermal management and component temperature limits remain within specification.

Q: Are the physical dimensions compatible?

A: The PA4341.152NLT is slightly larger (7.60mm × 6.90mm versus 6.95mm × 6.60mm). Verify PCB layout clearance and solder pad spacing before substitution. Both components maintain identical 3.00mm seated height.

Q: What is the difference in saturation current between these parts?

A: The CMLB063T-1R5MS saturates at 12 A, while PA4341.152NLT saturates at 18 A. The substitute provides 50% higher saturation margin, which is beneficial for transient current spikes but does not change the continuous current rating limitation of 9 A.

Q: Are both parts RoHS and REACH compliant?

A: Yes. Both CMLB063T-1R5MS and PA4341.152NLT are ROHS3 compliant and REACH unaffected, meeting environmental and regulatory requirements for industrial and commercial applications.

Q: What is the significance of AEC-Q200 rating on the substitute?

A: AEC-Q200 is an automotive electronics qualification standard. The PA4341.152NLT carries this certification, indicating suitability for automotive applications with defined reliability and temperature cycling requirements. The main part does not list this certification.