RUT2012JR150CS Equivalent & Substitute Parts

Part Overview

The RUT2012JR150CS is a 150 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 current sense resistor is designed for moisture-resistant applications with an operating temperature range of -55°C to 155°C. The part is Active status and ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating.

Substitute parts are identified when equivalent electrical performance can be maintained within the specified tolerance, resistance value, and package dimensions, while accommodating variations in power rating, tolerance grade, and application-specific features such as automotive qualification or anti-sulfur properties.

Substiute Parts

RUT2012JR150CS

Samsung Electro-MechanicsIn Stock: 1027RUT2012JR150CS Datasheet

Current PartRFQ

ERJ-6DSFR15V

Panasonic Electronic ComponentsIn Stock: 12622ERJ-6DSFR15V Datasheet

SimilarRFQ

ERJ-6DSJR15V

Panasonic Electronic ComponentsIn Stock: 1850ERJ-6DSJR15V Datasheet

SimilarRFQ

ERJ-U6SFR15V

Panasonic Electronic ComponentsIn Stock: 45579ERJ-U6SFR15V Datasheet

SimilarRFQ

ERJ-U6SJR15V

Panasonic Electronic ComponentsIn Stock: 6387ERJ-U6SJR15V Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RUT2012JR150CS is determined by the following criteria:

Mandatory Matching Parameters:

• Resistance value: 150 mOhms
• Package / Case: 0805 (2012 Metric)
• Composition: Thick Film
• Operating temperature range: -55°C ~ 155°C minimum
• RoHS3 compliance
• MSL 1 rating

Allowable Variations:

• Tolerance: ±5% or tighter (±1% acceptable)
• Power rating: Equal or greater than 0.25W (0.5W acceptable)
• Temperature coefficient: ±150ppm/°C or better
• Features: Additional features (Automotive AEC-Q200, Anti-Sulfur) do not disqualify substitution

All four substitute parts meet these criteria and are classified as direct electrical equivalents with enhanced or equivalent specifications.

Parameter Comparison

Engineering Selection Recommendations

Direct Substitution (Same Power Rating - 0.25W):

ERJ-U6SFR15V and ERJ-U6SJR15V are direct substitutes for the RUT2012JR150CS with identical 0.25W power rating and 0805 package dimensions. Both parts maintain the same operating temperature range and RoHS3 compliance. ERJ-U6SFR15V offers improved tolerance (±1%) and includes Automotive AEC-Q200 qualification and Anti-Sulfur features. ERJ-U6SJR15V maintains the ±5% tolerance specification matching the main part while adding Automotive AEC-Q200 and Anti-Sulfur protection.

Upgraded Substitution (Higher Power Rating - 0.5W):

ERJ-6DSFR15V and ERJ-6DSJR15V provide enhanced power dissipation capability at 0.5W (1/2W) while maintaining the 0805 package footprint and all compliance requirements. These parts are suitable for applications requiring higher thermal headroom. ERJ-6DSFR15V offers ±1% tolerance with Automotive AEC-Q200 qualification. ERJ-6DSJR15V maintains ±5% tolerance with Automotive AEC-Q200 qualification.

All substitute parts are Active status products with established inventory availability and full ROHS3 and REACH compliance matching the main part specification.

Frequently Asked Questions (FAQ)

Q: Can ERJ-6DSFR15V or ERJ-6DSJR15V be used as direct replacements for RUT2012JR150CS?

A: Yes. Both parts are electrically equivalent with identical 150 mOhms resistance, 0805 package, and operating temperature range. The 0.5W power rating is a specification upgrade that does not prevent substitution. Physical height differences (0.028" vs 0.024" maximum seated height) must be verified against PCB layout constraints.

Q: What is the difference between ERJ-U6SFR15V and ERJ-U6SJR15V?

A: Both parts are identical in power rating (0.25W), package (0805), and physical dimensions. The primary difference is tolerance: ERJ-U6SFR15V is ±1% while ERJ-U6SJR15V is ±5%. Both include Anti-Sulfur and Automotive AEC-Q200 features.

Q: Are the Panasonic ERJ series parts suitable for non-automotive applications?

A: Yes. Automotive AEC-Q200 qualification indicates enhanced reliability testing and is not restrictive for general industrial or consumer applications. These parts meet or exceed the specifications of the RUT2012JR150CS for all non-automotive use cases.

Q: Does the Anti-Sulfur feature in ERJ-U6S series affect compatibility?

A: No. Anti-Sulfur protection is an additional feature that enhances performance in corrosive environments. It does not impact electrical performance or compatibility with circuits designed for standard thick film resistors.

Q: What is the significance of the height difference between substitute parts?

A: The RUT2012JR150CS has a maximum seated height of 0.024" (0.61mm). ERJ-U6S series parts are 0.026" (0.65mm) and ERJ-6D series parts are 0.028" (0.70mm). These differences must be evaluated against PCB clearance requirements, particularly in high-density layouts or applications with height constraints.

Q: Can tolerance grade be downgraded from ±1% to ±5% during substitution?

A: Tolerance downgrade is not recommended for direct substitution. If the original design specifies ±5% tolerance, parts with ±1% tolerance provide improved performance. Conversely, upgrading from ±5% to ±1% is acceptable and improves circuit accuracy.

Q: Are all substitute parts available in Tape & Reel packaging?

A: Yes. All substitute parts listed are supplied in Tape & Reel (TR) packaging matching the RUT2012JR150CS packaging format.