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Equivalent & Substitute Parts for UP0.4SC-682-R
Part Overview
The UP0.4SC-682-R is a 6.8 mH shielded wirewound inductor manufactured by Eaton - Electronics Division, designed for surface mount applications with a maximum current rating of 40 mA and 25 Ohm DC resistance. This component is classified as Active product status and is RoHS Compliant. Substitute parts are identified to provide alternative sourcing options when the primary part is unavailable or when procurement requirements necessitate alternative manufacturers while maintaining equivalent electrical and mechanical performance.
Substiute Parts
Key Parameters
| Parameter | Value | Unit |
|---|---|---|
| Inductance | 6.8 | mH |
| Inductance Tolerance | ±20% | — |
| Current Rating | 40 | mA |
| DC Resistance (DCR) | 25 | Ohm Max |
| Q Factor @ 100 kHz | 50 | — |
| Self Resonant Frequency | 1 | MHz |
| Shielding | Shielded | — |
| Mounting Type | Surface Mount | — |
| Operating Temperature Range | -40°C ~ 125°C | — |
| Moisture Sensitivity Level | 1 (Unlimited) | — |
| RoHS Status | RoHS Compliant | — |
Substitute Part Grouping Explanation
Substitute parts for the UP0.4SC-682-R are qualified based on the following electrical and mechanical parameters:
Critical Matching Parameters:
- Inductance value: 6.8 mH
- Inductance tolerance: ±20%
- Current rating: 40 mA
- DC resistance: 25 Ohm maximum
- Q factor @ 100 kHz: 50
- Self resonant frequency: 1 MHz
- Shielding: Shielded configuration
- Mounting type: Surface Mount
- Moisture sensitivity level: 1 (Unlimited)
Allowable Variations:
- Core material type (wirewound vs. drum core wirewound)
- Operating temperature range (provided minimum and maximum limits are maintained or exceeded)
- Physical dimensions (within nonstandard package classification)
- Packaging format (Tape & Reel or Cut Tape & Digi-Reel)
- RoHS compliance status (RoHS3 Compliant acceptable)
The identified substitute parts SRE6603-682M and SRR6603-682ML from Bourns Inc. meet all critical electrical parameters and maintain surface mount compatibility with equivalent shielding and moisture sensitivity ratings.
Parameter Comparison
| Parameter | UP0.4SC-682-R (Eaton) | SRE6603-682M (Bourns) | SRR6603-682ML (Bourns) |
|---|---|---|---|
| Inductance | 6.8 mH | 6.8 mH | 6.8 mH |
| Inductance Tolerance | ±20% | ±20% | ±20% |
| Current Rating | 40 mA | 40 mA | 40 mA |
| DC Resistance (DCR) | 25 Ohm Max | 25 Ohm Max | 25 Ohm Max |
| Q @ 100 kHz | 50 | 50 | 50 |
| Self Resonant Frequency | 1 MHz | 1 MHz | 1 MHz |
| Shielding | Shielded | Shielded | Shielded |
| Type | Wirewound | Drum Core, Wirewound | Drum Core, Wirewound |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount |
| Operating Temperature | -40°C ~ 125°C | -25°C ~ 105°C | -55°C ~ 125°C |
| Moisture Sensitivity Level | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) |
| RoHS Status | RoHS Compliant | ROHS3 Compliant | ROHS3 Compliant |
| Packaging | Tape & Reel (TR) | Cut Tape (CT) & Digi-Reel® | Tape & Reel (TR) |
| Size / Dimension | 0.260" L x 0.175" W (6.60mm x 4.45mm) | 0.260" L x 0.175" W (6.60mm x 4.45mm) | 0.260" L x 0.173" W (6.60mm x 4.40mm) |
| Height - Seated (Max) | 0.115" (2.92mm) | 0.115" (2.92mm) | 0.118" (3.00mm) |
Engineering Selection Recommendations
UP0.4SC-682-R (Eaton - Electronics Division)
- Primary part with Active product status
- RoHS Compliant certification
- Operating temperature range: -40°C ~ 125°C
- Packaging: Tape & Reel (TR)
- Current inventory: 912 Pcs
SRR6603-682ML (Bourns Inc.) - Preferred Substitute
- Active product status
- ROHS3 Compliant certification
- Operating temperature range: -55°C ~ 125°C (extended low-temperature capability)
- Packaging: Tape & Reel (TR) (matches primary part packaging format)
- Current inventory: 1780 Pcs
- Dimensions: 0.260" L x 0.173" W x 0.118" H (minimal height variation of 0.003")
SRE6603-682M (Bourns Inc.) - Alternative Substitute
- Active product status
- ROHS3 Compliant certification
- Operating temperature range: -25°C ~ 105°C (reduced temperature range)
- Packaging: Cut Tape (CT) & Digi-Reel® (different packaging format)
- Current inventory: 6731 Pcs
- Dimensions: 0.260" L x 0.175" W x 0.115" H (exact height match)
Selection between substitute parts depends on packaging requirements and operating temperature constraints. SRR6603-682ML is recommended for applications requiring Tape & Reel packaging and extended low-temperature operation. SRE6603-682M is suitable for applications compatible with Cut Tape packaging and operating within -25°C ~ 105°C range.
Frequently Asked Questions (FAQ)
Q: What are the critical electrical parameters that determine substitution compatibility for the UP0.4SC-682-R?
A: The critical parameters are inductance (6.8 mH ±20%), current rating (40 mA), DC resistance (25 Ohm maximum), Q factor (50 @ 100 kHz), self resonant frequency (1 MHz), and shielding configuration. All substitute parts match these specifications exactly.
Q: Can the SRE6603-682M be used as a direct replacement for the UP0.4SC-682-R?
A: The SRE6603-682M is electrically equivalent but differs in packaging format (Cut Tape & Digi-Reel® versus Tape & Reel) and operating temperature range (-25°C ~ 105°C versus -40°C ~ 125°C). It is suitable for applications within the reduced temperature range and compatible with Cut Tape handling equipment.
Q: What is the difference between the two Bourns substitute parts?
A: Both SRE6603-682M and SRR6603-682ML are electrically identical. The primary differences are: (1) SRR6603-682ML offers extended low-temperature operation (-55°C versus -25°C minimum), (2) SRR6603-682ML uses Tape & Reel packaging matching the primary part, while SRE6603-682M uses Cut Tape & Digi-Reel®, and (3) minor physical dimension variations (height 0.118" versus 0.115").
Q: Are there any compliance or certification differences between the primary part and substitutes?
A: The primary part UP0.4SC-682-R is RoHS Compliant. Both substitute parts are ROHS3 Compliant, which represents an updated RoHS compliance standard. Both substitute parts are REACH Unaffected. All three parts maintain Moisture Sensitivity Level 1 (Unlimited).
Q: What is the physical dimension tolerance between these parts?
A: Length and width dimensions are identical (0.260" L x 0.175" W / 6.60mm x 4.45mm) for UP0.4SC-682-R and SRE6603-682M. The SRR6603-682ML has a width variation of 0.002" (0.173" versus 0.175") and height variation of 0.003" (0.118" versus 0.115"). These variations are within nonstandard package classification tolerances.
Q: Which substitute part should be selected for new designs?
A: For new designs requiring Tape & Reel packaging and full temperature range operation (-40°C ~ 125°C or lower), SRR6603-682ML is the recommended substitute. For applications with relaxed temperature requirements (-25°C ~ 105°C) and compatible with Cut Tape handling, SRE6603-682M is acceptable.
Q: Is the core material difference (wirewound versus drum core wirewound) significant?
A: Both substitute parts use drum core wirewound construction with ferrite core material, while the primary part uses wirewound construction. All three parts deliver identical electrical performance at the specified test frequency (100 kHz) and operating conditions, as confirmed by matching Q factor, inductance, and DC resistance values.
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