PM105-220M Equivalent & Substitute Parts

Part Overview

The PM105-220M is a 22 µH unshielded drum core wirewound inductor manufactured by Bourns Inc., rated for 1.96 A with 100mOhm DC resistance. This component operates across -30°C to 100°C and is classified as obsolete. Due to its obsolete status, equivalent and substitute parts from active product lines are necessary for new designs and ongoing production requirements. Suitable alternatives maintain the core electrical specifications while offering improved availability and compliance certifications.

Key Parameters

Parameter	Value
Inductance	22 µH
Inductance Tolerance	±20%
Current Rating	1.96 A
DC Resistance (DCR)	100mOhm
Core Material	Ferrite
Shielding	Unshielded
Mounting Type	Surface Mount
Operating Temperature Range	-30°C ~ 100°C
Self Resonant Frequency	15 MHz
Package Type	Nonstandard
Physical Dimensions	9.80mm x 9.80mm x 5.80mm (max height)

Substitute Part Grouping Explanation

Substitution eligibility is determined by the following critical parameters:

Inductance Value: Must be 22 µH
Inductance Tolerance: ±20% maximum
Current Rating: Minimum 1.95 A (equivalent to or exceeding 1.96 A specification)
DC Resistance: 100mOhm or lower
Core Material: Ferrite, unshielded
Mounting Type: Surface Mount
Physical Footprint: Compatible with 9.80mm x 9.80mm x 5.80mm envelope

Substitute parts are categorized as follows:

Direct Equivalents (Bourns Inc. PM105 Series): PM105-220M-RC and SDR1006-220ML maintain identical electrical specifications, physical dimensions, and core construction. These parts are sourced from active product lines with current manufacturing status.

Similar Equivalents (Sumida America Components Inc. CD105 Series): CD105NP-220MC and CD105BNP-220MC provide equivalent electrical performance with minor dimensional variations within acceptable tolerances. These parts are from alternative manufacturers with active product status.

Lower Current Alternative (Bourns Inc. CM322522 Series): CM322522-220JL provides the same inductance value and core material but with reduced current rating (105 mA) and significantly lower DC resistance (3.7Ohm). This part is suitable only for applications where current requirements do not exceed 105 mA.

Parameter Comparison

Parameter	PM105-220M (Main)	PM105-220M-RC	SDR1006-220ML	CD105NP-220MC	CD105BNP-220MC	CM322522-220JL
Manufacturer	Bourns Inc.	Bourns Inc.	Bourns Inc.	Sumida America	Sumida America	Bourns Inc.
Product Status	Obsolete	Active	Active	Active	Active	Active
Inductance	22 µH	22 µH	22 µH	22 µH	22 µH	22 µH
Tolerance	±20%	±20%	±20%	±20%	±20%	±5%
Current Rating (A)	1.96	1.95	1.95	1.95	1.95	0.105
DC Resistance	100mOhm	100mOhm	100mOhm Max	100mOhm Max	100mOhm Max	3.7Ohm Max
Core Material	Ferrite	Ferrite	Ferrite	Ferrite	Ferrite	Ferrite
Shielding	Unshielded	Unshielded	Unshielded	Unshielded	Unshielded	Unshielded
Self Resonant Frequency	15 MHz	13 MHz	13 MHz	15.9 MHz	15.9 MHz	25 MHz
Operating Temperature	-30°C ~ 100°C	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 100°C	-40°C ~ 105°C	-40°C ~ 125°C
Dimensions (L x W x H max)	9.80 x 9.80 x 5.80 mm	9.80 x 9.80 x 5.80 mm	9.80 x 9.80 x 5.80 mm	10.00 x 9.00 x 5.80 mm	10.00 x 9.00 x 5.80 mm	3.20 x 2.50 x 2.20 mm
RoHS Status	Non-compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	Not specified	ROHS3 Compliant
Packaging	Bulk	Tape & Reel	Cut Tape & Digi-Reel	Tape & Reel	Tape & Reel	Tape & Reel

Engineering Selection Recommendations

For Direct Replacement (Preferred): PM105-220M-RC and SDR1006-220ML are the primary substitutes. Both maintain identical electrical specifications and physical dimensions as the obsolete PM105-220M. PM105-220M-RC offers ROHS3 compliance and extended operating temperature range (-40°C to 125°C). SDR1006-220ML provides equivalent performance with Cut Tape and Digi-Reel packaging options for high-volume applications.

For Alternative Manufacturer Sourcing: CD105NP-220MC and CD105BNP-220MC from Sumida America Components Inc. provide equivalent electrical performance with ROHS3 compliance. Minor dimensional variations (10.00mm x 9.00mm footprint versus 9.80mm x 9.80mm) require PCB layout verification. These parts are suitable when Bourns sourcing is constrained.

For Current-Limited Applications Only: CM322522-220JL is applicable exclusively to circuits where current requirements do not exceed 105 mA. This part offers superior inductance tolerance (±5%) and significantly lower DC resistance (3.7Ohm Max), making it unsuitable for the 1.96 A rating of the original PM105-220M.

Compliance Consideration: The original PM105-220M is RoHS non-compliant. All active substitute parts (PM105-220M-RC, SDR1006-220ML, CD105NP-220MC, and CM322522-220JL) are ROHS3 compliant, meeting current regulatory requirements for new designs and production.

Frequently Asked Questions (FAQ)

Q: Can PM105-220M-RC be used as a direct replacement for PM105-220M?

A: Yes. PM105-220M-RC is a direct equivalent from the same manufacturer and series. It maintains identical inductance (22 µH), current rating (1.95 A), DC resistance (100mOhm), and physical dimensions (9.80mm x 9.80mm x 5.80mm). The primary advantage is active product status and ROHS3 compliance.

Q: What is the difference between PM105-220M-RC and SDR1006-220ML?

A: Both parts are electrically equivalent with identical specifications. The difference lies in series designation and packaging. PM105-220M-RC is supplied in Tape & Reel format, while SDR1006-220ML is available in Cut Tape and Digi-Reel options. Selection depends on production volume and assembly line requirements.

Q: Are Sumida CD105 series parts compatible with the PM105-220M footprint?

A: CD105NP-220MC and CD105BNP-220MC have slightly larger footprints (10.00mm x 9.00mm versus 9.80mm x 9.80mm). PCB layout verification is required before substitution. Electrical performance is equivalent, and both parts are ROHS3 compliant.

Q: When should CM322522-220JL be considered?

A: CM322522-220JL is suitable only for applications where circuit current does not exceed 105 mA. The original PM105-220M is rated for 1.96 A, making CM322522-220JL unsuitable for direct replacement in high-current circuits. This part offers improved inductance tolerance (±5%) and lower DC resistance (3.7Ohm Max) for low-current applications.

Q: What is the impact of operating temperature range differences?

A: PM105-220M operates from -30°C to 100°C. PM105-220M-RC and SDR1006-220ML extend this range to -40°C to 125°C, providing broader environmental compatibility. CD105NP-220MC operates to -40°C to 100°C, and CD105BNP-220MC to -40°C to 105°C. Selection depends on application thermal requirements.

Q: Are all substitute parts RoHS compliant?

A: PM105-220M-RC, SDR1006-220ML, CD105NP-220MC, and CM322522-220JL are all ROHS3 compliant. The original PM105-220M is RoHS non-compliant. For new designs and production, ROHS3-compliant substitutes are required to meet current regulatory standards.

Q: What packaging options are available for high-volume production?

A: PM105-220M-RC is supplied in Tape & Reel format. SDR1006-220ML offers both Cut Tape and Digi-Reel options. CD105NP-220MC and CD105BNP-220MC are available in Tape & Reel. CM322522-220JL is supplied in Tape & Reel. Selection should align with assembly equipment and production volume requirements.

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