UP0.4SC-680-R Equivalent & Substitute Parts

Part Overview

The UP0.4SC-680-R is a 68 µH shielded wirewound inductor manufactured by Eaton - Electronics Division, designed for surface mount applications requiring 400 mA current handling capability. This component is classified as Active product status and is RoHS Compliant. Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are required for procurement flexibility, inventory management, or supply chain continuity.

Key Parameters

Parameter	Value
Inductance	68 µH
Inductance Tolerance	±20%
Current Rating	400 mA
DC Resistance (DCR)	290 mOhm Max
Shielding	Shielded
Q Factor @ 100 kHz	40
Self Resonant Frequency	15 MHz
Operating Temperature Range	-40°C ~ 125°C
Mounting Type	Surface Mount
Package Type	Nonstandard
RoHS Status	RoHS Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the UP0.4SC-680-R is determined by strict equivalence across the following critical parameters:

Electrical Equivalence Requirements:

Inductance value: 68 µH with ±20% tolerance
Current rating: 400 mA minimum
DC resistance: 290 mOhm maximum
Q factor: 40 @ 100 kHz
Self resonant frequency: 15 MHz
Shielding: Shielded construction

Mechanical Compatibility Requirements:

Mounting type: Surface mount
Package classification: Nonstandard
Physical dimensions: Compatible with 0.260" L x 0.175" W footprint (±0.010" tolerance acceptable)
Height: 0.115" maximum seated height

Compliance Requirements:

RoHS compliance status
Moisture sensitivity level: 1 (Unlimited)
Operating temperature range: -40°C minimum to 125°C minimum

The SRR6603-680ML meets all specified electrical and mechanical parameters for direct substitution in the UP0.4SC-680-R application.

Parameter Comparison

Parameter	UP0.4SC-680-R (Eaton)	SRR6603-680ML (Bourns)	Match Status
Inductance	68 µH	68 µH	Equivalent
Inductance Tolerance	±20%	±20%	Equivalent
Current Rating (Amps)	400 mA	400 mA	Equivalent
DC Resistance (DCR)	290 mOhm Max	290 mOhm Max	Equivalent
Shielding	Shielded	Shielded	Equivalent
Q @ 100 kHz	40	40	Equivalent
Self Resonant Frequency	15 MHz	15 MHz	Equivalent
Operating Temperature Range	-40°C ~ 125°C	-55°C ~ 125°C	Compatible (SRR6603 exceeds minimum)
Mounting Type	Surface Mount	Surface Mount	Equivalent
Package Type	Nonstandard	Nonstandard	Equivalent
Size / Dimension (L x W)	0.260" x 0.175" (6.60mm x 4.45mm)	0.260" x 0.173" (6.60mm x 4.40mm)	Compatible (within tolerance)
Height - Seated (Max)	0.115" (2.92mm)	0.118" (3.00mm)	Compatible (within tolerance)
RoHS Status	RoHS Compliant	ROHS3 Compliant	Compatible
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	Equivalent
Product Status	Active	Active	Equivalent

Engineering Selection Recommendations

Primary Selection: UP0.4SC-680-R (Eaton - Electronics Division)

The UP0.4SC-680-R is the specified component with Active product status and RoHS Compliance certification. Current inventory availability is 734 pieces in Tape & Reel packaging.

Approved Substitute: SRR6603-680ML (Bourns Inc.)

The SRR6603-680ML is qualified as a direct substitute based on complete electrical parameter equivalence and mechanical compatibility. This component demonstrates:

Identical inductance, tolerance, current rating, and DC resistance specifications
Matching Q factor and self resonant frequency characteristics
Compatible physical dimensions within manufacturing tolerance
Enhanced operating temperature range (-55°C lower bound vs. -40°C)
ROHS3 Compliance certification (exceeds RoHS Compliant requirement)
Active product status with higher inventory availability (1201 pieces)
Identical Moisture Sensitivity Level classification

Selection between these two parts is determined by procurement requirements, supply availability, and cost considerations. Both components are functionally interchangeable in the specified application.

Frequently Asked Questions (FAQ)

Q: Can the SRR6603-680ML replace the UP0.4SC-680-R in production assemblies?

A: Yes. The SRR6603-680ML meets all electrical specifications (68 µH inductance, 400 mA current rating, 290 mOhm DCR, 40 Q factor @ 100 kHz, 15 MHz self resonant frequency) and mechanical requirements (surface mount, nonstandard package, compatible dimensions). Both components are shielded wirewound inductors with identical tolerance and compliance ratings.

Q: Are there dimensional differences between these parts?

A: Minor dimensional variations exist within manufacturing tolerance. The UP0.4SC-680-R measures 0.260" L x 0.175" W x 0.115" H (6.60mm x 4.45mm x 2.92mm). The SRR6603-680ML measures 0.260" L x 0.173" W x 0.118" H (6.60mm x 4.40mm x 3.00mm). These differences are within standard PCB layout tolerance and do not affect interchangeability.

Q: What is the difference between the core materials?

A: The UP0.4SC-680-R core material is not specified in the provided data. The SRR6603-680ML uses a ferrite drum core. Both achieve identical electrical performance at the specified test frequency (100 kHz) and operating conditions.

Q: Do both parts have the same compliance certifications?

A: Both parts are RoHS compliant. The SRR6603-680ML carries ROHS3 Compliance certification, which represents a more recent compliance standard. Both parts have MSL 1 (Unlimited) moisture sensitivity rating and are classified as EAR99 for export control purposes.

Q: What is the saturation current specification?

A: The UP0.4SC-680-R saturation current (Isat) is not specified in the provided data. The SRR6603-680ML specifies Isat at 170 mA, which is below the 400 mA rated current, indicating the component operates in the linear region at rated current.

Q: Can these parts be used interchangeably in new designs?

A: Yes. Both components meet identical electrical and mechanical specifications for the 68 µH, 400 mA shielded wirewound inductor category. Design selection can be based on availability, cost, or supply chain preference without requiring circuit redesign or re-qualification.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message