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UP0.4SC-100-R Equivalent & Substitute Parts
Part Overview
The UP0.4SC-100-R is a 10 µH shielded wirewound surface mount inductor manufactured by Eaton - Electronics Division. This component is rated for 1 A continuous current with a maximum DC resistance of 75 mOhm and operates across the temperature range of -40°C to 125°C. The part is Active in product status and RoHS Compliant, making it suitable for modern electronic applications requiring compact, shielded inductance in surface mount packages.
Substitute parts are identified when equivalent electrical and mechanical parameters are maintained within the allowed specifications for this inductor category. Alternatives become necessary due to inventory availability, supply chain considerations, or design flexibility requirements while maintaining functional equivalence.
Substiute Parts
Key Parameters
| Parameter | Value | Unit |
|---|---|---|
| Inductance | 10 | µH |
| Inductance Tolerance | ±20 | % |
| Current Rating | 1 | A |
| DC Resistance (Max) | 75 | mOhm |
| Shielding | Shielded | — |
| Q Factor @ 200 kHz | 40 | — |
| Self Resonant Frequency | 38 | MHz |
| Mounting Type | Surface Mount | — |
| Operating Temperature Range | -40 to 125 | °C |
| Moisture Sensitivity Level | 1 (Unlimited) | — |
| RoHS Status | RoHS Compliant | — |
Substitute Part Grouping Explanation
Substitution eligibility for the UP0.4SC-100-R is determined by strict equivalence across the following critical parameters:
Electrical Equivalence Requirements:
- Inductance value: 10 µH (±20% tolerance maintained)
- Current rating: 1 A minimum
- DC resistance: 75 mOhm maximum
- Shielding: Shielded configuration required
- Q factor @ 200 kHz: 40 minimum
- Self resonant frequency: 38 MHz minimum
Mechanical & Environmental Equivalence Requirements:
- Mounting type: Surface Mount
- Package classification: Nonstandard (consistent with main part)
- Moisture sensitivity: MSL 1 or better
- Operating temperature: Must support -40°C to 125°C range or broader
Compliance Requirements:
- RoHS compliance status: Active product status required
- Packaging: Tape & Reel (TR) format
The substitute parts PM1608S-100M-RC and SRR6603-100ML meet all electrical, mechanical, and environmental criteria for direct substitution with the UP0.4SC-100-R.
Parameter Comparison
| Parameter | UP0.4SC-100-R (Eaton) | PM1608S-100M-RC (Bourns) | SRR6603-100ML (Bourns) |
|---|---|---|---|
| Inductance | 10 µH | 10 µH | 10 µH |
| Inductance Tolerance | ±20% | ±20% | ±20% |
| Current Rating | 1 A | 1 A | 1 A |
| DC Resistance (Max) | 75 mOhm | 75 mOhm | 75 mOhm |
| Shielding | Shielded | Shielded | Shielded |
| Q @ 200 kHz | 40 | 40 | 40 |
| Self Resonant Frequency | 38 MHz | 38 MHz | 38 MHz |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount |
| Operating Temperature Range | -40°C to 125°C | -55°C to 125°C | -55°C to 125°C |
| Moisture Sensitivity Level | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) |
| RoHS Status | RoHS Compliant | ROHS3 Compliant | ROHS3 Compliant |
| Product Status | Active | Active | Active |
| Packaging | Tape & Reel (TR) | Tape & Reel (TR) | Tape & Reel (TR) |
Engineering Selection Recommendations
All three inductors—UP0.4SC-100-R, PM1608S-100M-RC, and SRR6603-100ML—are Active products with current manufacturing status and full compliance certifications. Selection between these parts is based on availability and supply chain factors rather than functional differences.
UP0.4SC-100-R (Eaton - Electronics Division): Current inventory: 786 pcs. RoHS Compliant. Operating temperature range: -40°C to 125°C. Suitable for applications requiring Eaton component qualification or existing supply agreements.
PM1608S-100M-RC (Bourns Inc.): Current inventory: 912 pcs. ROHS3 Compliant. Operating temperature range: -55°C to 125°C (extended low-temperature capability). REACH Unaffected status. Suitable for applications requiring extended temperature performance or Bourns component qualification.
SRR6603-100ML (Bourns Inc.): Current inventory: 3355 pcs (highest availability). ROHS3 Compliant. Operating temperature range: -55°C to 125°C. Current saturation specification provided: 370 mA. Suitable for applications where maximum inventory availability is prioritized or where saturation current specification is required for design verification.
All three parts maintain identical electrical performance across inductance, current rating, DC resistance, Q factor, and self-resonant frequency specifications. Mechanical dimensions are equivalent within manufacturing tolerances.
Frequently Asked Questions (FAQ)
Q: Can PM1608S-100M-RC directly replace UP0.4SC-100-R in existing designs?
A: Yes. Both parts maintain identical inductance (10 µH ±20%), current rating (1 A), DC resistance (75 mOhm max), and shielding configuration. Operating temperature ranges are compatible, with PM1608S-100M-RC offering extended low-temperature capability (-55°C vs. -40°C minimum). Surface mount package classification and moisture sensitivity levels are equivalent.
Q: What is the difference between PM1608S-100M-RC and SRR6603-100ML?
A: Both are Bourns inductors with identical electrical specifications. The primary difference is current saturation specification: SRR6603-100ML provides saturation current data (370 mA), while PM1608S-100M-RC does not specify this parameter. SRR6603-100ML has significantly higher inventory availability (3355 pcs vs. 912 pcs). Mechanical dimensions are equivalent.
Q: Are there any compliance differences between these three parts?
A: UP0.4SC-100-R carries RoHS Compliant status. Both Bourns parts (PM1608S-100M-RC and SRR6603-100ML) carry ROHS3 Compliant status, representing updated compliance certification. PM1608S-100M-RC additionally specifies REACH Unaffected status. All three parts are MSL 1 (Unlimited moisture sensitivity).
Q: Which part should be selected for new designs?
A: Selection is based on supply chain and inventory factors. SRR6603-100ML offers the highest current availability (3355 pcs). PM1608S-100M-RC provides REACH documentation. UP0.4SC-100-R is appropriate for designs requiring Eaton component qualification. All three deliver identical electrical performance.
Q: Are the physical dimensions interchangeable?
A: Yes. UP0.4SC-100-R dimensions: 0.260" L × 0.175" W × 0.115" H (6.60mm × 4.45mm × 2.92mm). PM1608S-100M-RC and SRR6603-100ML dimensions: 0.260" L × 0.173" W × 0.118" H (6.60mm × 4.40mm × 3.00mm). Differences are within standard manufacturing tolerances for nonstandard surface mount packages and do not affect PCB layout compatibility.
Q: What is the inductance frequency test condition?
A: All three parts are tested at 100 kHz for inductance value verification. Q factor specification (40 @ 200 kHz) and self-resonant frequency (38 MHz) are measured at their respective frequencies and apply uniformly across all three parts.
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