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RUT2012JR470CS Equivalent & Substitute Parts
Part Overview
The RUT2012JR470CS is a 470 mOhms ±5% thick film chip resistor manufactured by Samsung Electro-Mechanics, rated for 0.25W (1/4W) power dissipation in the 0805 (2012 Metric) package. This component is designed for current sensing applications with moisture-resistant construction and operates across the temperature range of -55°C to 155°C. The part maintains Active product status and is ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating.
Equivalent and substitute parts are identified when design requirements permit tolerance relaxation, enhanced automotive qualification, or alternative sourcing for supply chain optimization while maintaining electrical and mechanical compatibility.
Substiute Parts
Key Parameters
| Parameter | Value | Criticality for Substitution |
|---|---|---|
| Resistance Value | 470 mOhms | Must Match Exactly |
| Tolerance | ±5% | Can Improve (Tighter) |
| Power Rating | 0.25W (1/4W) | Must Match or Exceed |
| Package / Case | 0805 (2012 Metric) | Must Match Exactly |
| Composition | Thick Film | Must Match |
| Temperature Coefficient | ±150ppm/°C | Must Match or Better |
| Operating Temperature Range | -55°C ~ 155°C | Must Match or Exceed |
| RoHS Status | ROHS3 Compliant | Must Match |
| MSL Rating | 1 (Unlimited) | Must Match or Better |
Substitute Part Grouping Explanation
Substitution eligibility for the RUT2012JR470CS is determined by strict adherence to the following parameters:
Mandatory Match Requirements:
- Resistance value: 470 mOhms (exact)
- Package: 0805 (2012 Metric) (exact)
- Composition: Thick Film (exact)
- Operating temperature range: -55°C ~ 155°C (minimum)
- RoHS compliance: ROHS3 (minimum)
- MSL rating: 1 or better
Allowable Variations:
- Tolerance: May be tightened from ±5% to ±1% without functional impact
- Power rating: May equal or exceed 0.25W
- Temperature coefficient: May equal or improve upon ±150ppm/°C
- Additional features: Anti-sulfur and automotive AEC-Q200 qualification are compatible enhancements
Identified Substitutes:
The ERJ-U6QFR47V (Panasonic) and ERJ-U6QJR47V (Panasonic) meet all mandatory parameters. ERJ-U6QFR47V provides improved tolerance specification (±1% vs ±5%), while ERJ-U6QJR47V maintains tolerance parity (±5%) with added automotive qualification.
Parameter Comparison
| Parameter | RUT2012JR470CS (Samsung) | ERJ-U6QFR47V (Panasonic) | ERJ-U6QJR47V (Panasonic) |
|---|---|---|---|
| Resistance | 470 mOhms | 470 mOhms | 470 mOhms |
| Tolerance | ±5% | ±1% | ±5% |
| Power Rating | 0.25W (1/4W) | 0.25W (1/4W) | 0.25W (1/4W) |
| Package | 0805 (2012 Metric) | 0805 (2012 Metric) | 0805 (2012 Metric) |
| Composition | Thick Film | Thick Film | Thick Film |
| Temperature Coefficient | ±150ppm/°C | ±150ppm/°C | ±150ppm/°C |
| Operating Temperature | -55°C ~ 155°C | -55°C ~ 155°C | -55°C ~ 155°C |
| Size / Dimension | 0.079" L x 0.049" W (2.00mm x 1.25mm) | 0.079" L x 0.049" W (2.00mm x 1.25mm) | 0.079" L x 0.049" W (2.00mm x 1.25mm) |
| Height - Seated (Max) | 0.024" (0.61mm) | 0.026" (0.65mm) | 0.026" (0.65mm) |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant |
| MSL Rating | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) |
| Features | Current Sense, Moisture Resistant | Anti-Sulfur, Automotive AEC-Q200 | Anti-Sulfur, Automotive AEC-Q200 |
Engineering Selection Recommendations
RUT2012JR470CS (Samsung Electro-Mechanics): Select this part for applications requiring the original specification with moisture-resistant thick film construction. Suitable for general current sensing applications with standard tolerance requirements. ROHS3 compliant and MSL 1 rated for unlimited moisture exposure.
ERJ-U6QFR47V (Panasonic Electronic Components): Select this substitute when improved tolerance specification (±1%) is required without changing the original tolerance requirement. Provides tighter resistance accuracy for precision current sensing circuits. Includes anti-sulfur protection and automotive AEC-Q200 qualification. ROHS3 compliant and MSL 1 rated. Height specification increases from 0.024" to 0.026" maximum seated height.
ERJ-U6QJR47V (Panasonic Electronic Components): Select this substitute when tolerance parity (±5%) with the original part is maintained while gaining automotive AEC-Q200 qualification and anti-sulfur protection. Suitable for automotive and harsh environment applications. ROHS3 compliant and MSL 1 rated. Height specification increases from 0.024" to 0.026" maximum seated height.
All three parts are Active status components with identical electrical performance in the 0805 package, identical operating temperature range, and equivalent compliance certifications.
Frequently Asked Questions (FAQ)
Q: Can ERJ-U6QFR47V replace RUT2012JR470CS in all applications?
A: ERJ-U6QFR47V is electrically compatible as a direct substitute. The ±1% tolerance is tighter than the original ±5%, which improves accuracy. The maximum seated height increases from 0.024" to 0.026", which must be verified against PCB layout constraints. Both parts are ROHS3 compliant with MSL 1 rating.
Q: What is the difference between ERJ-U6QFR47V and ERJ-U6QJR47V?
A: Both are Panasonic 0805 470 mOhms thick film resistors with identical electrical specifications and package dimensions. The primary difference is tolerance: ERJ-U6QFR47V is ±1% while ERJ-U6QJR47V is ±5%. Both include anti-sulfur protection and automotive AEC-Q200 qualification. Select ERJ-U6QFR47V for applications requiring tighter tolerance; select ERJ-U6QJR47V for tolerance parity with the original RUT2012JR470CS.
Q: Are there height differences between the main part and substitutes?
A: Yes. RUT2012JR470CS has a maximum seated height of 0.024" (0.61mm), while both Panasonic substitutes (ERJ-U6QFR47V and ERJ-U6QJR47V) have a maximum seated height of 0.026" (0.65mm). This 0.002" (0.04mm) difference must be evaluated for PCB assembly clearance and solder reflow profile compatibility.
Q: Do all three parts meet automotive standards?
A: RUT2012JR470CS does not carry automotive AEC-Q200 qualification. Both Panasonic substitutes (ERJ-U6QFR47V and ERJ-U6QJR47V) are AEC-Q200 qualified, making them suitable for automotive applications. If automotive qualification is not required, all three parts are functionally equivalent for standard industrial applications.
Q: What is the significance of anti-sulfur protection in the Panasonic parts?
A: Anti-sulfur protection is an additional feature in ERJ-U6QFR47V and ERJ-U6QJR47V that enhances reliability in environments with sulfur-containing contaminants. The original RUT2012JR470CS specifies moisture-resistant construction. Both feature sets are compatible with the 0805 package and do not affect electrical substitution eligibility.
Q: Can I use these parts interchangeably in tape and reel packaging?
A: All three parts are supplied in Tape & Reel (TR) packaging format, which is compatible with automated pick-and-place assembly equipment. Verify reel specifications and component orientation with your assembly supplier, as tape pitch and component spacing may vary between manufacturers.
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