Request Quote
(Ships tomorrow)
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
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.
Alternative Parts
SJ6012L2TP
Littelfuse Inc.
6 Alternative Parts
JMK107BBJ476MA-RE
Taiyo Yuden
10 Alternative Parts
GMK107BBJ475MA-T
Taiyo Yuden
5 Alternative Parts
SJ6020N2ARP
Littelfuse Inc.
3 Alternative Parts
SJ6025R2ATP
Littelfuse Inc.
4 Alternative Parts
2474-05L
API Delevan Inc.
1 Alternative Parts
4590R-684K
API Delevan Inc.
1 Alternative Parts
CM6560R-334
API Delevan Inc.
1 Alternative Parts
CM6460-104
API Delevan Inc.
1 Alternative Parts
5526-12
API Delevan Inc.
1 Alternative Parts

