RUT2012JR820CS Equivalent & Substitute Parts

Part Overview

The RUT2012JR820CS is a 0805 (2012 Metric) thick film chip resistor manufactured by Samsung Electro-Mechanics. This component provides 820 milliohms resistance with ±5% tolerance and 0.25W power rating. The device is designed for current sensing applications and incorporates moisture-resistant construction. The part is active in production status with RoHS3 compliance and unlimited moisture sensitivity level (MSL 1). Substitute parts are identified to address inventory availability, enhanced tolerance specifications, or automotive-grade certifications while maintaining electrical and mechanical compatibility.

Substiute Parts

RUT2012JR820CS

Samsung Electro-MechanicsIn Stock: 1048RUT2012JR820CS Datasheet

Current PartRFQ

ERJ-U6QFR82V

Panasonic Electronic ComponentsIn Stock: 5927ERJ-U6QFR82V Datasheet

SimilarRFQ

ERJ-U6QJR82V

Panasonic Electronic ComponentsIn Stock: 5386ERJ-U6QJR82V Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RUT2012JR820CS is determined by the following critical parameters:

Mandatory Matching Parameters:

• Resistance value: 820 mOhms
• Package / Case: 0805 (2012 Metric)
• Power rating: 0.25W (1/4W)
• Composition: Thick Film
• Operating temperature range: -55°C ~ 155°C
• Moisture sensitivity level: 1 (Unlimited)
• RoHS compliance: ROHS3 Compliant

Allowable Variation Parameters:

• Tolerance: ±5% (main part) to ±1% (substitute) — tighter tolerance is acceptable
• Features: Current sense and moisture resistant (main part) to anti-sulfur and automotive AEC-Q200 (substitute) — enhanced features are acceptable

The identified substitute parts ERJ-U6QJR82V and ERJ-U6QFR82V, both manufactured by Panasonic Electronic Components, meet all mandatory matching parameters. ERJ-U6QJR82V maintains the ±5% tolerance specification, while ERJ-U6QFR82V offers improved ±1% tolerance. Both incorporate automotive-grade AEC-Q200 certification and anti-sulfur construction, providing enhanced reliability characteristics.

Parameter Comparison

Engineering Selection Recommendations

RUT2012JR820CS (Samsung Electro-Mechanics)

This is the primary specification part. Selection is appropriate for applications requiring current sensing with moisture-resistant thick film construction. The part maintains active production status with full RoHS3 compliance and unlimited moisture sensitivity rating.

ERJ-U6QJR82V (Panasonic Electronic Components)

This substitute provides direct electrical equivalence with identical ±5% tolerance and 0.25W power rating. The part incorporates automotive-grade AEC-Q200 certification and anti-sulfur construction. Selection is appropriate when automotive-grade reliability is required or when Samsung inventory is unavailable. Height-seated maximum is 0.026" (0.65mm) compared to 0.024" (0.61mm) for the main part; this difference is within typical PCB assembly tolerances for 0805 components.

ERJ-U6QFR82V (Panasonic Electronic Components)

This substitute offers improved ±1% tolerance specification while maintaining all other electrical parameters. Selection is appropriate for applications requiring tighter resistance tolerance than the ±5% specification. The part includes automotive-grade AEC-Q200 certification and anti-sulfur construction. Height-seated maximum is 0.026" (0.65mm).

All three parts are active in production, RoHS3 compliant, and suitable for direct substitution in 0805 footprint designs operating within the -55°C to 155°C temperature range.

Frequently Asked Questions (FAQ)

Q: Can ERJ-U6QJR82V be used as a direct replacement for RUT2012JR820CS?

A: Yes. Both parts share identical electrical specifications (820 mOhms, ±5% tolerance, 0.25W power rating), the same 0805 package footprint, and equivalent operating temperature range (-55°C ~ 155°C). The ERJ-U6QJR82V includes automotive-grade AEC-Q200 certification and anti-sulfur construction as additional features. The seated height difference (0.026" vs 0.024") is within standard PCB assembly tolerances for this package class.

Q: What is the difference between ERJ-U6QJR82V and ERJ-U6QFR82V?

A: The primary difference is tolerance specification. ERJ-U6QJR82V maintains ±5% tolerance matching the main part, while ERJ-U6QFR82V provides tighter ±1% tolerance. Both parts are identical in all other parameters: 820 mOhms resistance, 0.25W power rating, 0805 package, and operating temperature range. Selection between these two depends on circuit tolerance requirements.

Q: Are all three parts suitable for current sensing applications?

A: The RUT2012JR820CS is specifically designed for current sensing with moisture-resistant construction. The Panasonic substitutes (ERJ-U6QJR82V and ERJ-U6QFR82V) are general-purpose thick film resistors with anti-sulfur and automotive-grade features. Both are electrically suitable for current sensing applications in the specified resistance and power rating range.

Q: What is the significance of the AEC-Q200 certification on the Panasonic parts?

A: AEC-Q200 is an automotive industry standard qualification for passive components. This certification indicates the parts have undergone rigorous testing for automotive applications. Selection of AEC-Q200 certified parts is appropriate for automotive or high-reliability applications where enhanced qualification documentation is required.

Q: Are there any PCB layout considerations when substituting these parts?

A: The 0805 footprint is identical across all three parts. The maximum seated height difference is 0.002" (0.04mm), which is negligible for standard PCB assembly. No layout modifications are required when substituting between these parts. Verify component placement clearance in your specific design if height-sensitive applications exist.

Q: Do all parts meet RoHS3 compliance requirements?

A: Yes. All three parts—RUT2012JR820CS, ERJ-U6QJR82V, and ERJ-U6QFR82V—are RoHS3 compliant and suitable for applications requiring RoHS compliance.

Q: What is the moisture sensitivity level (MSL) for these parts?

A: All three parts have MSL 1 (Unlimited), indicating no moisture sensitivity restrictions. These parts do not require special moisture control during storage, handling, or assembly.