RC1005J274CS Equivalent & Substitute Parts Reference

Part Overview

The RC1005J274CS is a 270 kOhms ±5% thick film chip resistor manufactured by Samsung Electro-Mechanics in 0402 (1005 Metric) package format with 1/16W power rating. This component is classified as Active product status with full RoHS3 compliance and unlimited moisture sensitivity level (MSL 1). The part is suitable for general-purpose applications requiring standard tolerance resistive elements in compact surface-mount form factors.

Equivalent and substitute parts are identified based on matching electrical specifications (resistance value, tolerance, power rating) and mechanical compatibility (package size, termination count, physical dimensions) while maintaining compliance certifications and operating temperature ranges.

Key Parameters

Parameter	Value	Unit
Resistance	270	kOhms
Tolerance	±5%	-
Power Rating	0.063W (1/16W)	W
Package / Case	0402 (1005 Metric)	-
Composition	Thick Film	-
Temperature Coefficient	±100	ppm/°C
Operating Temperature Range	-55°C to 155°C	°C
Physical Dimensions	1.00mm L × 0.50mm W × 0.40mm H (max)	mm
Number of Terminations	2	-
RoHS Status	ROHS3 Compliant	-
Moisture Sensitivity Level	1 (Unlimited)	-

Substitute Part Grouping Explanation

Substitute parts for RC1005J274CS are classified into three categories based on electrical and mechanical compatibility:

Direct Equivalent (Tolerance ±5%, Power 1/16W): Parts maintaining identical tolerance (±5%) and power rating (0.063W) with matching 0402 package, resistance value 270 kOhms, and operating temperature range -55°C to 155°C. These parts are pin-for-pin compatible with no circuit redesign required.

Upgrade Equivalent (Tolerance ±1%, Power 1/16W or 1/10W): Parts with improved tolerance specification (±1% versus ±5%) while maintaining 0402 package and 270 kOhms resistance. Some upgrade parts feature enhanced power rating (0.1W) or automotive-grade qualification (AEC-Q200). These parts provide superior performance characteristics and are electrically compatible.

Similar Alternative (Tolerance ±5%, Power 1/16W, Automotive Grade): Parts matching the original tolerance and power specifications with automotive qualification. These parts maintain full electrical and mechanical compatibility while offering enhanced reliability ratings for automotive applications.

Substitution eligibility is determined by:

Resistance value: 270 kOhms (exact match required)
Package format: 0402 (1005 Metric) (exact match required)
Operating temperature range: -55°C to 155°C (exact match required)
Number of terminations: 2 (exact match required)
Tolerance: ±5% minimum (±1% acceptable as upgrade)
Power rating: 0.063W minimum (0.1W acceptable as upgrade)
Composition: Thick Film (exact match required)
Compliance: RoHS3 and REACH status maintained

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance (kOhms)	Tolerance	Power (W)	Package	Temp Coeff (ppm/°C)	Op. Temp (°C)	Features	Product Status	RoHS3
RC1005J274CS	Samsung Electro-Mechanics	270	±5%	0.063	0402	±100	-55 to 155	Moisture Resistant	Active	Compliant
RC0402JR-07270KL	YAGEO	270	±5%	0.063	0402	±100	-55 to 155	Moisture Resistant	Active	Compliant
ERJ-2RKF2703X	Panasonic Electronic Components	270	±1%	0.1	0402	±100	-55 to 155	Automotive AEC-Q200	Active	Compliant
MCR01MRTF2703	Rohm Semiconductor	270	±1%	0.063	0402	±100	-55 to 155	-	Discontinued	Compliant
RC0402FR-07270KL	YAGEO	270	±1%	0.063	0402	±100	-55 to 155	Moisture Resistant	Active	Compliant
RMCF0402FT270K	Stackpole Electronics Inc	270	±1%	0.063	0402	±100	-55 to 155	Automotive AEC-Q200	Active	Compliant
RMCF0402JT270K	Stackpole Electronics Inc	270	±5%	0.063	0402	±100	-55 to 155	Automotive AEC-Q200	Active	Compliant

Engineering Selection Recommendations

For Direct Replacement (No Circuit Modification): RC0402JR-07270KL (YAGEO) is the primary direct equivalent, maintaining identical electrical specifications (270 kOhms ±5%, 0.063W) and mechanical compatibility. This part is Active status with high inventory availability (169,006 pcs) and moisture-resistant composition matching the original design intent.

For Improved Tolerance Applications: RC0402FR-07270KL (YAGEO) provides ±1% tolerance upgrade while maintaining 0.063W power rating and moisture-resistant features. This part is suitable for circuits requiring tighter resistance accuracy without power derating. Active product status with substantial inventory (113,669 pcs).

For Automotive or Enhanced Reliability: RMCF0402FT270K (Stackpole Electronics Inc) combines ±1% tolerance with AEC-Q200 automotive qualification at 0.063W power rating. Suitable for automotive-grade applications or systems requiring enhanced reliability certification. Active status with 1,880 pcs inventory.

ERJ-2RKF2703X (Panasonic Electronic Components) offers AEC-Q200 automotive qualification with upgraded 0.1W power rating and ±1% tolerance. Appropriate for automotive applications with higher thermal stress or margin requirements. Active status with 136,540 pcs inventory.

For Automotive Applications Matching Original Tolerance: RMCF0402JT270K (Stackpole Electronics Inc) maintains ±5% tolerance with AEC-Q200 automotive qualification. Provides automotive-grade reliability while preserving original tolerance specification. Active status with 10,608 pcs inventory.

Avoid: MCR01MRTF2703 (Rohm Semiconductor) is marked as Discontinued at DiGi Electronics and should not be selected for new designs despite technical compatibility.

Frequently Asked Questions (FAQ)

Q: Can RC0402JR-07270KL replace RC1005J274CS directly without circuit changes?

A: Yes. RC0402JR-07270KL is a direct equivalent with identical resistance (270 kOhms), tolerance (±5%), power rating (0.063W), package (0402), and operating temperature range (-55°C to 155°C). No circuit modification is required.

Q: What is the difference between ±5% and ±1% tolerance parts?

A: Tolerance specifies the maximum deviation from the nominal resistance value. ±5% tolerance allows ±13.5 kOhms deviation from 270 kOhms (256.5–283.5 kOhms range). ±1% tolerance restricts deviation to ±2.7 kOhms (267.3–272.7 kOhms range). ±1% parts provide tighter resistance accuracy for precision circuits but are electrically interchangeable in applications tolerating ±5% variation.

Q: Are AEC-Q200 parts compatible with non-automotive applications?

A: Yes. AEC-Q200 automotive-qualified parts (ERJ-2RKF2703X, RMCF0402FT270K, RMCF0402JT270K) meet or exceed general industrial specifications and are fully compatible with non-automotive applications. AEC-Q200 qualification indicates enhanced reliability testing and is not restrictive for general use.

Q: What does "Moisture Resistant" mean in the features?

A: Moisture Resistant composition indicates the thick film resistor element is formulated to resist moisture absorption and degradation in humid environments. RC1005J274CS, RC0402JR-07270KL, and RC0402FR-07270KL include this feature. Parts without this designation (MCR01MRTF2703) are standard thick film without specific moisture resistance enhancement.

Q: Can I use a 0.1W (1/10W) rated part instead of 0.063W (1/16W)?

A: Yes. A higher power rating (0.1W) is a conservative upgrade. The 0.1W part dissipates heat more efficiently and operates at lower junction temperature under identical current conditions. ERJ-2RKF2703X (0.1W) is electrically and mechanically compatible with RC1005J274CS (0.063W) and provides thermal margin improvement.

Q: What is the significance of MSL 1 (Unlimited) moisture sensitivity level?

A: MSL 1 indicates the component has unlimited shelf life and requires no special moisture control during storage or handling. No baking or dry-pack storage is required before soldering. All listed substitute parts maintain MSL 1 classification.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts (RC0402JR-07270KL, ERJ-2RKF2703X, MCR01MRTF2703, RC0402FR-07270KL, RMCF0402FT270K, RMCF0402JT270K) are RoHS3 Compliant and REACH Unaffected, matching the original RC1005J274CS compliance status.

Q: Why is MCR01MRTF2703 listed if it is discontinued?

A: MCR01MRTF2703 is included for reference purposes to document historical substitution relationships and inventory transition planning. For new designs and procurement, select from Active status parts: RC0402JR-07270KL, RC0402FR-07270KL, ERJ-2RKF2703X, RMCF0402FT270K, or RMCF0402JT270K.

Q: What packaging format differences exist among substitute parts?

A: RC1005J274CS is supplied in Cut Tape (CT) format. Substitute parts are available in Tape & Reel (TR) or Cut Tape & Digi-Reel® formats. All formats contain identical components; packaging format selection depends on procurement volume and assembly line requirements. TR format is standard for high-volume production; CT format suits lower-volume or prototype applications.

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