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UP0.4SC-101-R Equivalent & Substitute Parts
Part Overview
The UP0.4SC-101-R is a 100 µH shielded wirewound surface mount inductor manufactured by Eaton - Electronics Division. This component is rated for 300 mA continuous current with a maximum DC resistance of 480 mOhm and operates across the temperature range of -40°C to 125°C. The part is classified as Active product status with RoHS compliance and unlimited moisture sensitivity level (MSL 1). Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are maintained within the allowed parameter tolerances for this inductor category.
Substiute Parts
Key Parameters
| Parameter | Value | Unit |
|---|---|---|
| Inductance | 100 | µH |
| Inductance Tolerance | ±20 | % |
| Current Rating | 300 | mA |
| DC Resistance (Max) | 480 | mOhm |
| Q Factor @ 100 kHz | 40 | — |
| Self Resonant Frequency | 10 | MHz |
| Operating Temperature Range | -40 to 125 | °C |
| Shielding | Shielded | — |
| Mounting Type | Surface Mount | — |
| Package Type | Nonstandard | — |
| Size (L x W) | 6.60 x 4.45 | mm |
| Height (Max) | 2.92 | mm |
Substitute Part Grouping Explanation
Substitute parts for the UP0.4SC-101-R are qualified based on strict electrical and mechanical parameter matching. The following criteria determine substitution eligibility:
Electrical Parameters (Must Match):
- Inductance: 100 µH
- Inductance Tolerance: ±20%
- Current Rating: 300 mA minimum
- DC Resistance: 480 mOhm maximum
- Q Factor @ 100 kHz: 40
- Self Resonant Frequency: 10 MHz
- Shielding: Shielded configuration
Mechanical Parameters (Must Match):
- Mounting Type: Surface Mount
- Package Type: Nonstandard
- Physical Dimensions: 6.60 mm length, 4.45 mm width (±0.05 mm tolerance acceptable)
- Height: 2.92 mm maximum seated height (±0.08 mm tolerance acceptable)
Environmental & Compliance (Must Match or Exceed):
- Operating Temperature Range: -40°C to 125°C minimum
- Moisture Sensitivity Level: MSL 1 (Unlimited)
- RoHS Compliance: Required
The substitute parts PM1608S-101M-RC and SRR6603-101ML meet all specified electrical parameters and mechanical compatibility requirements for direct substitution in applications requiring the UP0.4SC-101-R.
Parameter Comparison
| Parameter | UP0.4SC-101-R (Eaton) | PM1608S-101M-RC (Bourns) | SRR6603-101ML (Bourns) |
|---|---|---|---|
| Inductance | 100 µH | 100 µH | 100 µH |
| Inductance Tolerance | ±20% | ±20% | ±20% |
| Current Rating | 300 mA | 300 mA | 300 mA |
| DC Resistance (Max) | 480 mOhm | 480 mOhm | 480 mOhm |
| Q @ 100 kHz | 40 | 40 | 40 |
| Self Resonant Frequency | 10 MHz | 10 MHz | 10 MHz |
| Shielding | Shielded | Shielded | Shielded |
| Operating Temperature | -40 to 125°C | -55 to 125°C | -55 to 125°C |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount |
| Size (L x W) | 6.60 x 4.45 mm | 6.60 x 4.40 mm | 6.60 x 4.40 mm |
| Height (Max) | 2.92 mm | 3.00 mm | 3.00 mm |
| Type | Wirewound | Drum Core, Wirewound | Drum Core, Wirewound |
| RoHS Status | RoHS Compliant | ROHS3 Compliant | ROHS3 Compliant |
| MSL Rating | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) |
| Product Status | Active | Active | Active |
Engineering Selection Recommendations
Both PM1608S-101M-RC and SRR6603-101ML are qualified substitutes for the UP0.4SC-101-R based on electrical parameter equivalence and mechanical compatibility. Selection between these options is determined by the following factors:
PM1608S-101M-RC (Bourns PM1608S Series):
- Meets all electrical specifications with identical inductance, current rating, and DC resistance
- Operating temperature range extends to -55°C, providing enhanced low-temperature performance
- ROHS3 compliant with REACH Unaffected status
- Physical dimensions: 6.60 x 4.40 mm length and width with 3.00 mm maximum height
- Suitable for applications requiring extended temperature performance or enhanced compliance documentation
SRR6603-101ML (Bourns SRR6603 Series):
- Meets all electrical specifications with identical inductance, current rating, and DC resistance
- Current saturation (Isat) specified at 130 mA, providing defined saturation characteristics
- Operating temperature range extends to -55°C
- ROHS3 compliant with REACH Unaffected status
- Physical dimensions: 6.60 x 4.40 mm length and width with 3.00 mm maximum height
- Suitable for applications where saturation current specification is required for circuit design validation
Both substitute parts maintain Active product status and are available in Tape & Reel packaging. The choice between PM1608S-101M-RC and SRR6603-101ML depends on whether saturation current specification is necessary for the application circuit design.
Frequently Asked Questions (FAQ)
Q: Can PM1608S-101M-RC or SRR6603-101ML be used as direct replacements for UP0.4SC-101-R?
A: Yes. Both parts meet the electrical specifications (100 µH inductance, 300 mA current rating, 480 mOhm maximum DC resistance, 40 Q factor at 100 kHz, 10 MHz self-resonant frequency) and mechanical requirements (surface mount, shielded, nonstandard package, 6.60 x 4.40 mm footprint). Physical height differences (2.92 mm vs. 3.00 mm) are within acceptable PCB assembly tolerances.
Q: What is the difference between PM1608S-101M-RC and SRR6603-101ML?
A: Both parts are electrically equivalent. The primary difference is that SRR6603-101ML specifies a current saturation (Isat) value of 130 mA, while PM1608S-101M-RC does not provide this specification. If saturation current is a design requirement, SRR6603-101ML provides this parameter for circuit analysis.
Q: Are there temperature range differences between the main part and substitutes?
A: The UP0.4SC-101-R operates from -40°C to 125°C. Both substitute parts (PM1608S-101M-RC and SRR6603-101ML) operate from -55°C to 125°C, providing extended low-temperature capability. This represents an improvement over the original part specification.
Q: Do the substitute parts have the same footprint as UP0.4SC-101-R?
A: The length dimension is identical at 6.60 mm. The width differs slightly: UP0.4SC-101-R is 4.45 mm while both substitutes are 4.40 mm. This 0.05 mm difference is within standard PCB design tolerances. The height increases from 2.92 mm to 3.00 mm, a difference of 0.08 mm that does not affect standard surface mount assembly clearances.
Q: Are all three parts RoHS compliant?
A: Yes. UP0.4SC-101-R is RoHS Compliant. PM1608S-101M-RC and SRR6603-101ML are both ROHS3 Compliant, representing current RoHS directive compliance. All three parts have MSL 1 (Unlimited) moisture sensitivity rating.
Q: What packaging format is available for these parts?
A: All three parts are supplied in Tape & Reel (TR) packaging, suitable for automated assembly processes.
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