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SC2506-6R8 Equivalent & Substitute Parts
Part Overview
The SC2506-6R8 is a 6.8 µH unshielded surface mount inductor manufactured by Signal Transformer, rated for 1.5 A continuous current with a maximum DC resistance of 165mOhm. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement.
The SC2506-6R8 serves applications requiring fixed inductance in compact surface mount packages. Substitution is required due to product discontinuation and the need for alternative sourcing options that maintain electrical and mechanical compatibility.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Inductance | 6.8 µH |
| Inductance Tolerance | ±20% |
| Current Rating | 1.5 A |
| Saturation Current (Isat) | 1.3 A |
| DC Resistance (DCR) | 165 mOhm Max |
| Shielding | Unshielded |
| Mounting Type | Surface Mount |
| Package Type | Nonstandard |
| Inductance Test Frequency | 100 kHz |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitution of the SC2506-6R8 is determined by the following critical parameters:
- Inductance Value: 6.8 µH with ±20% tolerance
- Current Rating: Minimum 1.5 A continuous current capability
- DC Resistance: Maximum 165 mOhm to maintain circuit performance
- Mounting Type: Surface mount configuration
- Shielding: Unshielded construction
- Inductance Test Frequency: 100 kHz measurement standard
The substitute part UP1B-6R8-R meets these criteria with improved electrical characteristics, including higher current rating (1.7 A), lower DC resistance (89.7 mOhm), and higher saturation current (2.2 A), while maintaining the same inductance value and tolerance specification.
Parameter Comparison
| Parameter | SC2506-6R8 (Main Part) | UP1B-6R8-R (Substitute) |
|---|---|---|
| Manufacturer | Signal Transformer | Eaton - Electronics Division |
| Inductance | 6.8 µH | 6.8 µH |
| Inductance Tolerance | ±20% | ±20% |
| Current Rating (Amps) | 1.5 A | 1.7 A |
| Saturation Current (Isat) | 1.3 A | 2.2 A |
| DC Resistance (DCR) | 165 mOhm Max | 89.7 mOhm Max |
| Shielding | Unshielded | Unshielded |
| Mounting Type | Surface Mount | Surface Mount |
| Inductance Test Frequency | 100 kHz | 100 kHz |
| Product Status | Obsolete | Active |
| RoHS Status | ROHS3 Compliant | RoHS Compliant |
| Moisture Sensitivity Level | 1 (Unlimited) | 1 (Unlimited) |
| Operating Temperature Range | Not specified | -40°C ~ 85°C |
Engineering Selection Recommendations
The UP1B-6R8-R is the qualified substitute for the SC2506-6R8 based on the following factors:
Product Status: The SC2506-6R8 is obsolete, while the UP1B-6R8-R maintains active production status, ensuring long-term availability and supply chain continuity.
Electrical Compatibility: Both parts share identical inductance values (6.8 µH) and tolerance specifications (±20%), measured at the same test frequency (100 kHz). The substitute provides superior electrical performance with lower DC resistance (89.7 mOhm versus 165 mOhm) and higher current ratings (1.7 A versus 1.5 A), making it suitable for applications requiring the original part.
Compliance: Both components meet RoHS requirements and maintain MSL 1 moisture sensitivity ratings, ensuring compatibility with standard manufacturing and storage protocols.
Physical Compatibility: Both parts are surface mount, unshielded inductors in nonstandard packages. Physical footprint verification is required during design integration due to dimensional differences between the two packages.
Frequently Asked Questions (FAQ)
Q: Can the UP1B-6R8-R directly replace the SC2506-6R8 in existing designs?
A: Electrical substitution is valid based on matching inductance values, tolerance, and test frequency. Physical footprint compatibility must be verified, as the substitute has different dimensions (0.350" L x 0.240" W versus 0.364" L x 0.310" W) and height (0.197" versus 0.065").
Q: What are the key differences between these two inductors?
A: The primary differences are DC resistance (89.7 mOhm versus 165 mOhm), current rating (1.7 A versus 1.5 A), saturation current (2.2 A versus 1.3 A), and product status (active versus obsolete). The substitute offers improved electrical performance across all current-related parameters.
Q: Are there any compliance concerns with substitution?
A: Both parts are RoHS compliant and maintain identical moisture sensitivity levels. No compliance barriers exist for substitution in applications meeting these standards.
Q: What should be verified before implementing the substitute?
A: Verify PCB footprint compatibility, clearance for the increased height (0.197" versus 0.065"), and confirm that the lower DC resistance does not introduce unintended circuit behavior in the application.
Q: Is the substitute available in the same packaging format?
A: The substitute is supplied in Tape & Reel (TR) packaging, while the original part packaging format is not specified. Packaging format compatibility should be confirmed with procurement requirements.
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