UP0.4SC-221-R Equivalent & Substitute Parts

Part Overview

The UP0.4SC-221-R is a 220 µH shielded wirewound inductor manufactured by Eaton - Electronics Division, part of the UNI-PAC™ 0.4SC series. This surface mount component is rated for 220 mA continuous current with a maximum DC resistance of 770 mOhm and operates across the temperature range of -40°C to 125°C. The component maintains active product status and is RoHS compliant.

Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained across critical parameters including inductance value, current rating, DC resistance, shielding characteristics, and surface mount package dimensions.

Key Parameters

Parameter	Value	Unit
Inductance	220	µH
Inductance Tolerance	±20	%
Current Rating	220	mA
DC Resistance (Max)	770	mOhm
Shielding	Shielded	—
Q Factor @ 100 kHz	40	—
Self Resonant Frequency	6	MHz
Mounting Type	Surface Mount	—
Package Dimensions (L × W)	6.60 × 4.45	mm
Height (Seated Max)	2.92	mm
Operating Temperature Range	-40 to 125	°C
RoHS Status	RoHS Compliant	—
Moisture Sensitivity Level	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution eligibility for the UP0.4SC-221-R is determined by strict equivalence across the following critical parameters:

Electrical Parameters:

Inductance value of 220 µH with ±20% tolerance
Current rating of 220 mA minimum
DC resistance not exceeding 770 mOhm
Shielded construction
Q factor of 40 @ 100 kHz
Self resonant frequency of 6 MHz

Mechanical Parameters:

Surface mount package type
Package dimensions within acceptable tolerance: length 6.60 mm, width 4.40–4.45 mm
Height seated maximum not exceeding 3.00 mm
Tape & Reel packaging format

Compliance Parameters:

RoHS compliance (RoHS 2 or RoHS 3)
Moisture Sensitivity Level 1
Active product status

The SRR6603-221ML from Bourns Inc. meets all substitution criteria across electrical, mechanical, and compliance parameters.

Parameter Comparison

Parameter	UP0.4SC-221-R (Eaton)	SRR6603-221ML (Bourns)	Match Status
Inductance	220 µH	220 µH	Equivalent
Inductance Tolerance	±20%	±20%	Equivalent
Current Rating	220 mA	220 mA	Equivalent
DC Resistance (Max)	770 mOhm	770 mOhm	Equivalent
Shielding	Shielded	Shielded	Equivalent
Q @ 100 kHz	40	40	Equivalent
Self Resonant Frequency	6 MHz	6 MHz	Equivalent
Mounting Type	Surface Mount	Surface Mount	Equivalent
Package Length	6.60 mm	6.60 mm	Equivalent
Package Width	4.45 mm	4.40 mm	Compatible
Height (Seated Max)	2.92 mm	3.00 mm	Compatible
Operating Temperature Range	-40 to 125°C	-55 to 125°C	Superset
RoHS Status	RoHS Compliant	ROHS3 Compliant	Equivalent
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	Equivalent
Packaging Format	Tape & Reel	Tape & Reel	Equivalent

Engineering Selection Recommendations

Primary Selection: UP0.4SC-221-R

The UP0.4SC-221-R maintains active product status with established supply availability (1094 pcs in stock). RoHS compliance and MSL 1 rating support standard manufacturing environments without special handling requirements.

Substitute Selection: SRR6603-221ML

The SRR6603-221ML from Bourns Inc. provides full electrical and mechanical equivalence with the following additional considerations:

Extended operating temperature range (-55°C to 125°C) provides thermal margin beyond the primary part specification
ROHS3 compliance exceeds RoHS 2 requirements
Ferrite drum core construction maintains shielding performance equivalent to the primary part
Package dimensions (6.60 × 4.40 × 3.00 mm) are compatible with PCB layouts designed for the UP0.4SC-221-R
Higher inventory availability (1600 pcs) supports supply chain continuity

Both parts are active products with equivalent compliance certifications and are suitable for direct substitution in surface mount applications requiring 220 µH inductance at 220 mA current rating.

Frequently Asked Questions (FAQ)

Q: Can the SRR6603-221ML replace the UP0.4SC-221-R in existing designs?

A: Yes. Both inductors meet identical electrical specifications (220 µH, 220 mA, 770 mOhm DCR, shielded) and are compatible with the same surface mount package footprint. Package dimensions differ by less than 0.1 mm in width and 0.08 mm in height, which is within standard PCB layout tolerances.

Q: What are the key electrical parameters that determine substitution eligibility?

A: Inductance value (220 µH), current rating (220 mA minimum), DC resistance (770 mOhm maximum), shielding type (shielded), Q factor (40 @ 100 kHz), and self resonant frequency (6 MHz) must all match or exceed the primary part specifications.

Q: Are there any compliance differences between these parts?

A: The SRR6603-221ML carries ROHS3 compliance, which is a superset of RoHS 2 compliance on the UP0.4SC-221-R. Both parts are MSL 1 rated and do not require special moisture handling during assembly.

Q: How do the operating temperature ranges compare?

A: The UP0.4SC-221-R operates from -40°C to 125°C. The SRR6603-221ML extends the lower limit to -55°C, providing additional thermal margin for applications requiring extended cold temperature performance.

Q: Are package dimensions identical?

A: Package dimensions are compatible but not identical. The UP0.4SC-221-R measures 6.60 × 4.45 × 2.92 mm (L × W × H). The SRR6603-221ML measures 6.60 × 4.40 × 3.00 mm. These differences are within standard PCB design tolerances for surface mount components.

Q: What core materials are used in each inductor?

A: The UP0.4SC-221-R uses a shielded wirewound construction. The SRR6603-221ML uses a ferrite drum core with wirewound construction. Both achieve equivalent electrical performance and shielding characteristics.

Q: Can these parts be used interchangeably in high-frequency applications?

A: Yes. Both inductors are specified with identical Q factors (40 @ 100 kHz) and self resonant frequencies (6 MHz), confirming equivalent high-frequency performance characteristics.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message