CMLB063T-3R3MS Equivalent & Substitute Parts

Part Overview

The CMLB063T-3R3MS is a 3.3 µH shielded inductor manufactured by Delta Electronics/Cyntec, rated for 7.2 A continuous current with a maximum DC resistance of 22mOhm. This surface mount component operates across the industrial temperature range of -55°C to 125°C and is ROHS3 compliant. The part is currently active in production with 1071 units in stock. Substitute parts are identified when equivalent inductance values, shielding characteristics, and operating parameters align within acceptable tolerances for the application.

Substiute Parts

CMLB063T-3R3MS

Delta Electronics/CyntecIn Stock: 1163CMLB063T-3R3MS Datasheet

Current PartRFQ

PA4341.332NLT

Pulse ElectronicsIn Stock: 3288PA4341.332NLT Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CMLB063T-3R3MS is determined by the following critical parameters:

• Inductance value: 3.3 µH (±20% tolerance band)
• Shielding requirement: Shielded construction
• Current rating: Minimum 7.2 A continuous
• DC resistance: Maximum 22 mOhm
• Saturation current: Minimum 8.5 A
• Mounting: Surface mount configuration
• Temperature range: Support for -55°C to 125°C operation
• Compliance: ROHS3 and REACH requirements

The PA4341.332NLT meets the inductance, shielding, and mounting requirements. However, the current rating of 6 A falls below the 7.2 A requirement of the main part, and the DC resistance of 30 mOhm exceeds the 22 mOhm maximum specification. These differences must be evaluated against application-specific current and thermal constraints.

Parameter Comparison

Engineering Selection Recommendations

Both parts maintain active production status and ROHS3 compliance. The PA4341.332NLT carries AEC-Q200 automotive qualification, which the main part does not specify. The primary selection criteria are current rating and DC resistance specifications. The CMLB063T-3R3MS provides higher continuous current capacity (7.2 A vs. 6 A) and lower DC resistance (22 mOhm vs. 30 mOhm). The PA4341.332NLT offers superior saturation current performance (14.6 A vs. 8.5 A) and a narrower operating temperature floor (-40°C vs. -55°C). Physical dimensions differ slightly, with the PA4341.332NLT being marginally larger. Selection should be based on whether the application requires the full 7.2 A continuous rating and 22 mOhm DCR specification of the main part, or whether the lower current rating and higher resistance of the substitute are acceptable within circuit design margins.

Frequently Asked Questions (FAQ)

Q: Can PA4341.332NLT replace CMLB063T-3R3MS in all applications?

A: No. The PA4341.332NLT has a lower continuous current rating (6 A vs. 7.2 A) and higher DC resistance (30 mOhm vs. 22 mOhm). Substitution is only valid if the application operates below 6 A continuous current and can tolerate the additional 8 mOhm resistance increase.

Q: Are the physical dimensions compatible?

A: Both parts have identical seated height (3.00mm) and nonstandard package types. However, the PA4341.332NLT is slightly larger in length and width (7.60mm x 6.90mm vs. 6.95mm x 6.60mm). PCB layout and clearance requirements must be verified.

Q: What is the temperature range difference?

A: The CMLB063T-3R3MS operates from -55°C to 125°C, while the PA4341.332NLT operates from -40°C to 125°C. If the application requires operation below -40°C, the main part is required.

Q: Do both parts meet compliance requirements?

A: Yes. Both parts are ROHS3 compliant, REACH unaffected, and carry MSL rating 1 (unlimited moisture sensitivity). The PA4341.332NLT additionally carries AEC-Q200 automotive qualification.

Q: What is the saturation current difference?

A: The PA4341.332NLT has a higher saturation current (14.6 A vs. 8.5 A), providing greater margin before core saturation occurs. This is an advantage for transient current conditions.