UP0.4SC-6R8-R Equivalent & Substitute Parts

Part Overview

The UP0.4SC-6R8-R is a 6.8 µH shielded wirewound inductor manufactured by Eaton - Electronics Division, part of the UNI-PAC™ 0.4SC series. This surface mount component is rated for 1.2 A continuous current with a maximum DC resistance of 65 mOhm and operates across the temperature range of -40°C to 125°C. The component maintains active product status with 1043 units in current inventory stock.

Equivalent and substitute parts are identified to provide design flexibility, support supply chain continuity, and accommodate application-specific requirements such as extended temperature ranges or alternative core material compositions while maintaining electrical and mechanical compatibility.

Substiute Parts

UP0.4SC-6R8-R
Eaton - Electronics DivisionIn Stock: 1116UP0.4SC-6R8-R Datasheet
UP0.4SC-6R8-R
Current Part
SRR6603-6R8ML
Bourns Inc.In Stock: 9145SRR6603-6R8ML Datasheet
SRR6603-6R8ML
Similar

Key Parameters

Parameter Value Unit
Inductance 6.8 µH
Inductance Tolerance ±20 %
Current Rating 1.2 A
DC Resistance (Max) 65 mOhm
Shielding Shielded
Q Factor @ 200 kHz 40
Self Resonant Frequency 50 MHz
Operating Temperature Range -40 to 125 °C
Mounting Type Surface Mount
Package Type Nonstandard
Physical Dimensions (L × W) 6.60 × 4.45 mm
Height (Seated Max) 2.92 mm
RoHS Compliance RoHS Compliant
Moisture Sensitivity Level 1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the UP0.4SC-6R8-R are identified based on strict electrical and mechanical parameter matching. The primary substitution criteria are:

Electrical Parameters:

  • Inductance value: 6.8 µH
  • Inductance tolerance: ±20%
  • Current rating: 1.2 A minimum
  • DC resistance: 65 mOhm maximum
  • Shielding: Shielded configuration required
  • Q factor @ 200 kHz: 40
  • Self resonant frequency: 50 MHz

Mechanical Parameters:

  • Mounting type: Surface Mount
  • Package classification: Nonstandard
  • Physical dimensions: 6.60 mm length, 4.45 mm width (±0.05 mm tolerance acceptable)
  • Height seated maximum: 2.92 mm (±0.08 mm tolerance acceptable)

Compliance Parameters:

  • RoHS compliance status
  • Moisture sensitivity level: 1 (Unlimited)
  • Product status: Active

The SRR6603-6R8ML from Bourns Inc. meets all specified electrical and mechanical parameters and qualifies as a direct substitute.

Parameter Comparison

Parameter UP0.4SC-6R8-R (Eaton) SRR6603-6R8ML (Bourns) Match Status
Inductance 6.8 µH 6.8 µH Exact Match
Inductance Tolerance ±20% ±20% Exact Match
Current Rating 1.2 A 1.2 A Exact Match
DC Resistance (Max) 65 mOhm 65 mOhm Exact Match
Shielding Shielded Shielded Exact Match
Q @ 200 kHz 40 40 Exact Match
Self Resonant Frequency 50 MHz 50 MHz Exact Match
Operating Temperature Range -40 to 125°C -55 to 125°C Compatible (Bourns extends lower limit)
Mounting Type Surface Mount Surface Mount Exact Match
Length × Width 6.60 × 4.45 mm 6.60 × 4.40 mm Compatible (0.05 mm width variance)
Height (Seated Max) 2.92 mm 3.00 mm Compatible (0.08 mm variance)
RoHS Status RoHS Compliant ROHS3 Compliant Compatible
Moisture Sensitivity MSL 1 (Unlimited) MSL 1 (Unlimited) Exact Match
Product Status Active Active Exact Match

Engineering Selection Recommendations

Primary Selection: UP0.4SC-6R8-R (Eaton)

Select the UP0.4SC-6R8-R when:

  • Eaton component qualification is required by design specification or procurement policy
  • Operating temperature range of -40°C to 125°C is sufficient for the application
  • Current inventory availability of 1043 units supports production scheduling
  • RoHS Compliant certification meets regulatory requirements

Substitute Selection: SRR6603-6R8ML (Bourns)

Select the SRR6603-6R8ML when:

  • Extended lower operating temperature range (-55°C to 125°C) is required
  • Bourns component qualification is acceptable or preferred
  • Higher inventory availability (9072 units) supports expedited procurement
  • ROHS3 Compliant certification meets current regulatory requirements
  • Ferrite drum core construction is compatible with application requirements
  • Physical dimension variance (height 3.00 mm vs. 2.92 mm, width 4.40 mm vs. 4.45 mm) is acceptable within PCB layout constraints

Both components are active products with unlimited moisture sensitivity rating and identical electrical performance at rated operating conditions.

Frequently Asked Questions (FAQ)

Q: Can the SRR6603-6R8ML replace the UP0.4SC-6R8-R in existing designs?

A: Yes. The SRR6603-6R8ML meets all critical electrical parameters: 6.8 µH inductance, ±20% tolerance, 1.2 A current rating, 65 mOhm maximum DC resistance, shielded configuration, and 40 Q factor at 200 kHz. Physical dimensions are compatible within standard PCB layout tolerances (height difference of 0.08 mm, width difference of 0.05 mm).

Q: What is the difference in core material between these inductors?

A: The UP0.4SC-6R8-R uses a wirewound core construction. The SRR6603-6R8ML uses a ferrite drum core with wirewound configuration. Both achieve identical electrical specifications at the specified test frequency of 100 kHz and operating conditions.

Q: Are there temperature range differences?

A: Yes. The UP0.4SC-6R8-R operates from -40°C to 125°C. The SRR6603-6R8ML operates from -55°C to 125°C, providing extended low-temperature capability. Both support the standard -40°C to 125°C range.

Q: Do both parts have the same RoHS compliance status?

A: Both parts are RoHS compliant. The UP0.4SC-6R8-R carries RoHS Compliant certification. The SRR6603-6R8ML carries ROHS3 Compliant certification, representing the current regulatory standard.

Q: What is the saturation current difference?

A: The UP0.4SC-6R8-R does not specify a saturation current value. The SRR6603-6R8ML specifies 580 mA saturation current. Both components are rated for 1.2 A continuous current operation.

Q: Are both components available in Tape & Reel packaging?

A: Yes. Both the UP0.4SC-6R8-R and SRR6603-6R8ML are supplied in Tape & Reel (TR) packaging suitable for automated assembly processes.

Q: Which part should be selected for new designs?

A: Selection depends on application requirements. For standard temperature range applications (-40°C to 125°C), either component is suitable. For applications requiring extended low-temperature operation (-55°C), the SRR6603-6R8ML is specified. Verify component availability and lead time with your supplier for production scheduling.

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