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SC3316F-100 Equivalent & Substitute Parts
Part Overview
The SC3316F-100 is a 10 µH unshielded wirewound inductor manufactured by Signal Transformer, rated for 3.9 A continuous current with a maximum DC resistance of 38 mOhm. This surface mount component operates across the temperature range of -40°C to 125°C and is specified for 100 kHz inductance testing. The part maintains Active product status with ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1).
Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained within the specified parameter tolerances for this inductance category.
Substiute Parts
Key Parameters
| Parameter | Value | Unit |
|---|---|---|
| Inductance | 10 | µH |
| Inductance Tolerance | ±20% | — |
| Current Rating | 3.9 | A |
| DC Resistance (Max) | 38 | mOhm |
| Shielding | Unshielded | — |
| Mounting Type | Surface Mount | — |
| Operating Temperature Range | -40°C to 125°C | — |
| Inductance Test Frequency | 100 | kHz |
| RoHS Status | ROHS3 Compliant | — |
| MSL Rating | 1 (Unlimited) | — |
Substitute Part Grouping Explanation
The ASPI-0804T-100M-T qualifies as a substitute based on the following electrical and mechanical alignment:
Inductance value matches at 10 µH with identical ±20% tolerance. DC resistance specification is equivalent at 38 mOhm maximum. Current rating of 3.8 A remains within acceptable operating parameters for applications designed for the 3.9 A primary part. Both components are unshielded, surface mount inductors tested at 100 kHz. Physical dimensions are comparable (SC3316F-100: 13.45mm × 9.90mm × 5.21mm height; ASPI-0804T-100M-T: 12.95mm × 9.40mm × 5.21mm height), permitting board layout compatibility. Both maintain ROHS3 compliance and MSL 1 rating. Packaging format is Tape & Reel for both parts.
The substitute differs in core material (Drum Core Ferrite versus unspecified core type) and operating temperature upper limit (85°C versus 125°C). These differences must be evaluated against specific application requirements.
Parameter Comparison
| Parameter | SC3316F-100 (Main) | ASPI-0804T-100M-T (Substitute) |
|---|---|---|
| Manufacturer | Signal Transformer | Abracon LLC |
| Inductance | 10 µH | 10 µH |
| Inductance Tolerance | ±20% | ±20% |
| Current Rating | 3.9 A | 3.8 A |
| DC Resistance (Max) | 38 mOhm | 38 mOhm |
| Shielding | Unshielded | Unshielded |
| Operating Temperature Range | -40°C to 125°C | -40°C to 85°C |
| Inductance Test Frequency | 100 kHz | 100 kHz |
| Mounting Type | Surface Mount | Surface Mount |
| Package / Case | Nonstandard | Nonstandard |
| Length × Width | 13.45mm × 9.90mm | 12.95mm × 9.40mm |
| Height (Seated Max) | 5.21mm | 5.21mm |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant |
| MSL Rating | 1 (Unlimited) | 1 (Unlimited) |
| Product Status | Active | Active |
Engineering Selection Recommendations
Both the SC3316F-100 and ASPI-0804T-100M-T maintain Active product status with full ROHS3 compliance and unlimited moisture sensitivity ratings, supporting long-term supply chain viability.
Selection between these parts depends on application thermal requirements. The SC3316F-100 supports operation to 125°C, while the ASPI-0804T-100M-T is rated to 85°C maximum. For applications operating within the 85°C upper limit, the substitute provides equivalent electrical performance. For applications requiring sustained operation above 85°C, the primary part is required.
The 0.1 A reduction in current rating (3.8 A versus 3.9 A) is negligible for most circuit designs but should be verified against actual load conditions. Physical dimensions are sufficiently similar to permit direct board layout substitution without redesign.
Frequently Asked Questions (FAQ)
Q: Can ASPI-0804T-100M-T replace SC3316F-100 in all applications?
A: Substitution is valid for applications operating at or below 85°C ambient temperature. Applications requiring sustained operation above 85°C must use the SC3316F-100 due to its 125°C upper temperature rating.
Q: Are the physical dimensions compatible for PCB layout?
A: Yes. The ASPI-0804T-100M-T (12.95mm × 9.40mm) is slightly smaller than the SC3316F-100 (13.45mm × 9.90mm), but both share identical seated height (5.21mm). Direct footprint substitution is mechanically feasible.
Q: What is the significance of the 0.1 A current rating difference?
A: The SC3316F-100 is rated for 3.9 A while the ASPI-0804T-100M-T is rated for 3.8 A. This difference is marginal and does not affect substitution validity for standard circuit applications. Verify actual circuit current draw against both ratings.
Q: Do both parts meet the same compliance standards?
A: Yes. Both parts are ROHS3 compliant, REACH unaffected, and carry MSL 1 (unlimited) moisture sensitivity ratings. Compliance profiles are equivalent.
Q: What is the difference in core material between these inductors?
A: The SC3316F-100 core material is not specified in the provided data. The ASPI-0804T-100M-T uses a Drum Core Ferrite construction. Both are unshielded wirewound inductors with identical inductance and DC resistance specifications.
Q: Are both parts available in Tape & Reel packaging?
A: Yes. Both SC3316F-100 and ASPI-0804T-100M-T are supplied in Tape & Reel (TR) format, supporting automated assembly processes.
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