RC1005F1581CS Equivalent & Substitute Parts Reference

Part Overview

The RC1005F1581CS is a 1.58 kOhms ±1% thick film chip resistor manufactured by Samsung Electro-Mechanics in 0402 (1005 Metric) package format. This surface mount device is rated at 0.063W (1/16W) power dissipation with moisture resistant characteristics and operates across the temperature range of -55°C to 155°C. The part is currently in active production status with ROHS3 compliance and unlimited moisture sensitivity level (MSL 1). Equivalent and substitute parts are identified based on matching electrical specifications, mechanical dimensions, and package compatibility to support component procurement flexibility and supply chain continuity.

Key Parameters

Parameter	Value
Resistance	1.58 kOhms
Tolerance	±1%
Power Rating	0.063W (1/16W)
Package / Case	0402 (1005 Metric)
Composition	Thick Film
Temperature Coefficient	±100ppm/°C
Operating Temperature Range	-55°C ~ 155°C
Moisture Sensitivity Level	1 (Unlimited)
RoHS Status	ROHS3 Compliant
Terminations	2

Substitute Part Grouping Explanation

Substitute parts for the RC1005F1581CS are classified based on strict electrical and mechanical parameter matching. The primary substitution criteria are:

Critical Parameters for Substitution:

Resistance value: 1.58 kOhms
Tolerance: ±1%
Package: 0402 (1005 Metric)
Temperature Coefficient: ±100ppm/°C
Operating Temperature Range: -55°C ~ 155°C
Composition: Thick Film
Terminations: 2
RoHS Status: ROHS3 Compliant
MSL Rating: 1 (Unlimited)

Direct Equivalents maintain all electrical and mechanical specifications with identical power ratings (0.063W, 1/16W).

Upgrade Substitutes provide enhanced power rating (0.1W, 1/10W) while maintaining all other critical parameters, suitable for applications requiring higher thermal margin.

Similar Substitutes include automotive-grade variants with AEC-Q200 certification, maintaining core electrical specifications while adding automotive qualification.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Package	Temp Coeff	Op Temp Range	Features	AEC-Q200	Moisture Resistant
RC1005F1581CS	Samsung Electro-Mechanics	1.58 kΩ	±1%	0.063	0402	±100ppm/°C	-55~155°C	Moisture Resistant	No	Yes
CR0402-FX-1581GLF	Bourns Inc.	1.58 kΩ	±1%	0.063	0402	±100ppm/°C	-55~155°C	Standard	No	No
RC0402FR-071K58L	YAGEO	1.58 kΩ	±1%	0.063	0402	±100ppm/°C	-55~155°C	Moisture Resistant	No	Yes
ERJ-2RKF1581X	Panasonic Electronic Components	1.58 kΩ	±1%	0.1	0402	±100ppm/°C	-55~155°C	Automotive AEC-Q200	Yes	No
AC0402FR-071K58L	YAGEO	1.58 kΩ	±1%	0.063	0402	±100ppm/°C	-55~155°C	Automotive AEC-Q200, Moisture Resistant	Yes	Yes
CRCW04021K58FKED	Vishay Dale	1.58 kΩ	±1%	0.063	0402	±100ppm/°C	-55~155°C	Automotive AEC-Q200	Yes	No
RMCF0402FT1K58	Stackpole Electronics Inc	1.58 kΩ	±1%	0.063	0402	±100ppm/°C	-55~155°C	Automotive AEC-Q200	Yes	No

Engineering Selection Recommendations

Direct Equivalent Selection: CR0402-FX-1581GLF (Bourns Inc.) and RC0402FR-071K58L (YAGEO) provide direct electrical and mechanical equivalence to the RC1005F1581CS. Both maintain identical resistance, tolerance, power rating, and temperature specifications. RC0402FR-071K58L includes moisture resistant characteristics matching the original part. Selection between these options depends on supply availability and procurement lead times.

Moisture Resistant Applications: For applications requiring moisture resistant characteristics, RC0402FR-071K58L (YAGEO) and AC0402FR-071K58L (YAGEO) are appropriate selections. AC0402FR-071K58L additionally provides AEC-Q200 automotive qualification while maintaining moisture resistance and identical electrical specifications.

Automotive Grade Applications: ERJ-2RKF1581X (Panasonic Electronic Components), AC0402FR-071K58L (YAGEO), CRCW04021K58FKED (Vishay Dale), and RMCF0402FT1K58 (Stackpole Electronics Inc) all carry AEC-Q200 automotive qualification. ERJ-2RKF1581X provides enhanced power rating (0.1W) for applications requiring higher thermal margin. AC0402FR-071K58L combines automotive qualification with moisture resistance.

Supply Chain Continuity: All substitute parts maintain ROHS3 compliance, MSL 1 rating, and identical package dimensions. Selection should prioritize parts with highest inventory availability and shortest procurement lead times while maintaining required feature set for the application.

Frequently Asked Questions (FAQ)

Q: Can CR0402-FX-1581GLF directly replace RC1005F1581CS? A: CR0402-FX-1581GLF provides direct electrical and mechanical substitution with matching 1.58 kOhms ±1% resistance, 0.063W power rating, 0402 package, and -55°C to 155°C operating range. The primary difference is absence of moisture resistant coating. Selection depends on application moisture exposure requirements.

Q: What is the difference between RC0402FR-071K58L and RC1005F1581CS? A: RC0402FR-071K58L (YAGEO) is electrically and mechanically identical to RC1005F1581CS (Samsung Electro-Mechanics). Both feature 1.58 kOhms ±1% resistance, 0.063W power rating, 0402 package, moisture resistant composition, and identical temperature specifications. The parts are interchangeable from an engineering standpoint.

Q: When should ERJ-2RKF1581X be selected instead of the original part? A: ERJ-2RKF1581X provides higher power rating (0.1W versus 0.063W) while maintaining all other electrical specifications. Selection is appropriate for applications requiring enhanced thermal margin or where component stress analysis indicates higher power dissipation capability is beneficial. AEC-Q200 automotive qualification is an additional feature.

Q: Are all substitute parts ROHS3 compliant? A: All listed substitute parts maintain ROHS3 compliance status matching the RC1005F1581CS. All parts also carry MSL 1 (Unlimited) moisture sensitivity level rating.

Q: What is the significance of AEC-Q200 certification on substitute parts? A: AEC-Q200 certification indicates automotive-grade qualification with enhanced reliability testing and quality requirements. Parts carrying this certification (ERJ-2RKF1581X, AC0402FR-071K58L, CRCW04021K58FKED, RMCF0402FT1K58) are suitable for automotive applications. Non-automotive applications do not require this certification.

Q: Can AC0402FR-071K58L be used in place of RC1005F1581CS? A: AC0402FR-071K58L provides full electrical and mechanical compatibility with identical 1.58 kOhms ±1% resistance, 0.063W power rating, and 0402 package. Additional features include AEC-Q200 automotive qualification and moisture resistant composition. The part is suitable for direct substitution in all applications supported by the original part.

Q: What are the package dimension tolerances for 0402 (1005 Metric) format? A: All listed parts maintain 0402 (1005 Metric) package format with dimensions 0.039" L x 0.020" W (1.00mm x 0.50mm) and maximum seated height of 0.016" (0.40mm), with AC0402FR-071K58L at 0.015" (0.37mm) maximum height. These dimensions are within standard 0402 package specifications and are mechanically interchangeable.

Q: Are there inventory considerations for substitute part selection? A: Inventory levels vary significantly among substitute parts. RC0402FR-071K58L (YAGEO) shows highest inventory at 141,592 pieces. ERJ-2RKF1581X (Panasonic) provides 107,078 pieces. RMCF0402FT1K58 (Stackpole) offers 35,802 pieces. CR0402-FX-1581GLF (Bourns) has 27,872 pieces. AC0402FR-071K58L (YAGEO) has 5,437 pieces. Selection should consider procurement timeline and volume requirements.

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