CMLB104T-220MS Equivalent & Substitute Parts

Part Overview

The CMLB104T-220MS is a 22 µH shielded inductor manufactured by Delta Electronics/Cyntec, rated for 5 A continuous current with a maximum DC resistance of 66 mOhm. This surface mount component is designed for applications requiring fixed inductance in compact form factors. The part is Active status and widely available in inventory. Substitute parts may be required due to supply constraints, lead time considerations, or specific application requirements within the defined electrical and mechanical parameter ranges.

Key Parameters

Parameter	Value
Inductance	22 µH
Tolerance	±20%
Current Rating	5 A
DC Resistance (DCR)	66 mOhm Max
Shielding	Shielded
Mounting Type	Surface Mount
Operating Temperature Range	-55°C ~ 125°C
Package Type	Nonstandard
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the CMLB104T-220MS is determined by the following critical parameters:

Electrical Parameters (Must Match):

Inductance: 22 µH at 100 kHz test frequency
Tolerance: ±20%
Current Rating: 5 A minimum
Shielding: Shielded construction required
Mounting Type: Surface Mount

Mechanical Parameters (Must Be Compatible):

Package Type: Nonstandard
Height - Seated (Max): 0.157" (4.00mm)
Moisture Sensitivity Level: 1 (Unlimited)

Compliance Parameters (Must Match):

RoHS Status: ROHS3 Compliant
REACH Status: REACH Unaffected

The PA4342.223NLT qualifies as a direct substitute based on matching inductance, tolerance, current rating, shielding, and mounting type. Variations in DC resistance (74 mOhm vs. 66 mOhm) and saturation current (7 A vs. 5.4 A) remain within acceptable operational margins for equivalent functionality.

Parameter Comparison

Parameter	CMLB104T-220MS	PA4342.223NLT	Status
Manufacturer	Delta Electronics/Cyntec	Pulse Electronics	Different
Inductance	22 µH	22 µH	Match
Tolerance	±20%	±20%	Match
Current Rating (Amps)	5 A	5 A	Match
Current - Saturation (Isat)	5.4 A	7 A	Compatible
DC Resistance (DCR)	66 mOhm Max	74 mOhm Max	Compatible
Shielding	Shielded	Shielded	Match
Mounting Type	Surface Mount	Surface Mount	Match
Package / Case	Nonstandard	Nonstandard	Match
Size / Dimension	0.427" L x 0.394" W (10.85mm x 10.00mm)	0.453" L x 0.406" W (11.50mm x 10.30mm)	Compatible
Height - Seated (Max)	0.157" (4.00mm)	0.157" (4.00mm)	Match
Operating Temperature	-55°C ~ 125°C	-40°C ~ 125°C	Compatible
Inductance Frequency - Test	100 kHz	100 kHz	Match
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Match
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	Match
REACH Status	REACH Unaffected	REACH Unaffected	Match
Product Status	Active	Active	Match

Engineering Selection Recommendations

Both the CMLB104T-220MS and PA4342.223NLT are Active status components with full ROHS3 compliance and REACH unaffected status, making them suitable for regulated applications. Selection between these parts should be based on:

Availability and Lead Time: The PA4342.223NLT currently has higher inventory (7916 Pcs) compared to CMLB104T-220MS (1076 Pcs), making it preferable for applications with extended procurement timelines.

Thermal Operating Range: The CMLB104T-220MS supports -55°C to 125°C operation, providing a wider low-temperature range than the PA4342.223NLT (-40°C to 125°C). Selection should reflect the specific thermal requirements of the target application.

DC Resistance Characteristics: The CMLB104T-220MS offers lower maximum DC resistance (66 mOhm) compared to PA4342.223NLT (74 mOhm). Applications sensitive to resistive losses should prioritize the lower DCR specification.

Saturation Current Margin: The PA4342.223NLT provides higher saturation current (7 A vs. 5.4 A), offering greater headroom above the 5 A rated current.

Both parts meet all mandatory compliance and electrical requirements for direct substitution within the specified parameter tolerances.

Frequently Asked Questions (FAQ)

Q: Can PA4342.223NLT be used as a direct replacement for CMLB104T-220MS?

A: Yes. Both parts share identical inductance (22 µH), tolerance (±20%), current rating (5 A), shielding type (Shielded), mounting configuration (Surface Mount), and package height (4.00mm max). Compliance certifications (ROHS3, REACH) are equivalent. The parts are electrically and mechanically compatible for direct substitution.

Q: What are the differences in DC resistance between these parts?

A: The CMLB104T-220MS specifies 66 mOhm maximum DC resistance, while the PA4342.223NLT specifies 74 mOhm maximum. This 8 mOhm difference represents approximately 12% higher resistance in the substitute part. Applications with strict power dissipation or thermal budgets should account for this variance.

Q: Are there temperature range limitations when substituting?

A: The CMLB104T-220MS operates from -55°C to 125°C, while the PA4342.223NLT operates from -40°C to 125°C. If the application requires operation below -40°C, the CMLB104T-220MS is required. For applications within -40°C to 125°C, both parts are suitable.

Q: Do the physical dimensions differ between these parts?

A: Yes. The CMLB104T-220MS measures 10.85mm L x 10.00mm W, while the PA4342.223NLT measures 11.50mm L x 10.30mm W. Both maintain the same maximum seated height of 4.00mm. PCB layout and clearance requirements should be verified for the substitute part's slightly larger footprint.

Q: Are both parts suitable for RoHS and REACH regulated applications?

A: Yes. Both the CMLB104T-220MS and PA4342.223NLT are ROHS3 compliant and REACH unaffected, meeting regulatory requirements for restricted substance compliance in regulated markets.

Q: What is the saturation current difference, and does it matter?

A: The CMLB104T-220MS has a saturation current (Isat) of 5.4 A, while the PA4342.223NLT has 7 A. Both exceed the 5 A rated current, providing operational margin. The PA4342.223NLT offers 1.6 A additional saturation headroom, which may be beneficial for transient current conditions.

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