RC0402J104CS Equivalent & Substitute Parts Reference

Part Overview

The RC0402J104CS is a 100 kOhms ±5% thick film chip resistor manufactured by Samsung Electro-Mechanics in the 01005 (0402 Metric) package format. This surface mount device is rated at 0.03W (1/32W) power dissipation with moisture resistant construction and operates across the temperature range of -55°C to 125°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 to support procurement flexibility, inventory management, and supply chain continuity for applications requiring 100 kOhms resistance with matching electrical and mechanical specifications.

Key Parameters

Parameter	Value
Resistance	100 kOhms
Tolerance	±5%
Power Rating	0.03W (1/32W)
Package / Case	01005 (0402 Metric)
Composition	Thick Film
Operating Temperature Range	-55°C to 125°C
Temperature Coefficient	±250ppm/°C
Moisture Sensitivity Level	1 (Unlimited)
RoHS Status	ROHS3 Compliant
Number of Terminations	2
Size / Dimension	0.016" L x 0.008" W (0.40mm x 0.20mm)
Height - Seated (Max)	0.006" (0.15mm)

Substitute Part Grouping Explanation

Substitute parts for the RC0402J104CS are classified based on electrical parameter compatibility and mechanical interchangeability. The primary substitution criteria are:

Direct Substitutes (Identical Electrical Specifications): Parts matching 100 kOhms resistance, ±5% tolerance, 0.03W power rating, 01005 package, and ±250ppm/°C temperature coefficient are classified as direct substitutes. These parts maintain full functional equivalence with the main part.

Upgrade Substitutes (Enhanced Tolerance): Parts with 100 kOhms resistance, ±1% tolerance (tighter than ±5%), 0.03W power rating, and 01005 package are classified as upgrades. These provide improved accuracy while maintaining mechanical compatibility and operating temperature range.

Similar Substitutes (Tolerance Upgrade with Different Temperature Coefficient): Parts with 100 kOhms resistance, ±1% tolerance, 0.03W power rating, 01005 package, but different temperature coefficient specifications are classified as similar alternatives. These offer enhanced tolerance performance with minor thermal drift variations.

All substitute parts maintain ROHS3 compliance, MSL 1 rating, and 2-termination configuration required for direct board-level replacement.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (Watts)	Package	Temp Coeff (ppm/°C)	Operating Temp Range	Packaging Type	RoHS Status	Inventory (Pcs)
RC0402J104CS	Samsung Electro-Mechanics	100 kOhms	±5%	0.03W	01005	±250	-55°C ~ 125°C	Cut Tape (CT)	ROHS3	1,458
CRCW0100100KJREL	Vishay Dale	100 kOhms	±5%	0.03W	01005	±250	-55°C ~ 125°C	Tape & Reel (TR)	ROHS3	59,932
ERJ-XGNJ104Y	Panasonic Electronic Components	100 kOhms	±5%	0.03W	01005	±200	-55°C ~ 125°C	Tape & Reel (TR)	ROHS3	205,323
RC0100FR-07100KL	YAGEO	100 kOhms	±1%	0.03W	01005	±200	-55°C ~ 125°C	Tape & Reel (TR)	ROHS3	82,000
CRCW0100100KFREL	Vishay Dale	100 kOhms	±1%	0.03W	01005	±250	-55°C ~ 125°C	Tape & Reel (TR)	ROHS3	24,478

Engineering Selection Recommendations

CRCW0100100KJREL (Vishay Dale) provides direct electrical and mechanical equivalence to the RC0402J104CS with identical tolerance (±5%), temperature coefficient (±250ppm/°C), and package specifications. This part is suitable for one-to-one replacement in applications where the original Samsung part is unavailable. Packaging format differs (Tape & Reel versus Cut Tape), which may affect procurement and assembly processes.

ERJ-XGNJ104Y (Panasonic Electronic Components) maintains electrical equivalence in resistance, tolerance, and power rating with identical package and operating temperature range. The temperature coefficient specification is ±200ppm/°C, representing improved thermal stability compared to the main part. This part is suitable for applications where thermal drift performance is a consideration. High inventory availability supports supply chain reliability.

RC0100FR-07100KL (YAGEO) provides tolerance upgrade to ±1% with improved accuracy over the ±5% specification of the main part. Temperature coefficient is ±200ppm/°C. This part is suitable for applications requiring tighter resistance tolerance while maintaining identical package, power rating, and operating temperature range. Moisture resistant construction matches the main part specification.

CRCW0100100KFREL (Vishay Dale) provides tolerance upgrade to ±1% with temperature coefficient matching the main part at ±250ppm/°C. This part is suitable for applications requiring improved accuracy without thermal drift changes. Package and operating temperature specifications are identical to the main part.

All substitute parts maintain active production status, ROHS3 compliance, and MSL 1 rating, confirming suitability for direct board-level replacement in applications originally specified for the RC0402J104CS.

Frequently Asked Questions (FAQ)

Q: Can CRCW0100100KJREL be used as a direct replacement for RC0402J104CS?

A: Yes. Both parts share identical electrical specifications (100 kOhms, ±5% tolerance, ±250ppm/°C temperature coefficient, 0.03W power rating) and mechanical package (01005). The primary difference is packaging format (Tape & Reel versus Cut Tape). Board-level performance is equivalent.

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

A: Tolerance defines the acceptable resistance variation from the nominal 100 kOhms value. ±5% tolerance allows variation between 95 kOhms and 105 kOhms. ±1% tolerance restricts variation to 99 kOhms and 101 kOhms. Applications requiring tighter resistance accuracy should specify ±1% tolerance parts (RC0100FR-07100KL or CRCW0100100KFREL).

Q: Does temperature coefficient affect part selection?

A: Temperature coefficient (±250ppm/°C or ±200ppm/°C) specifies resistance change per degree Celsius within the operating temperature range. Applications operating across wide temperature ranges or requiring stable resistance values should consider parts with lower temperature coefficient specifications (±200ppm/°C). For most general-purpose applications, both specifications are functionally equivalent.

Q: Are all substitute parts available in the same package size?

A: Yes. All listed substitute parts use the 01005 (0402 Metric) package with identical dimensions (0.016" L x 0.008" W / 0.40mm x 0.20mm) and maximum seated height (0.006" / 0.15mm). Board-level footprint compatibility is confirmed.

Q: What is the significance of MSL 1 rating?

A: MSL (Moisture Sensitivity Level) 1 indicates unlimited shelf life without moisture bake-out requirements. All listed parts carry MSL 1 rating, confirming no special moisture handling procedures are required during storage or assembly.

Q: Do packaging format differences (Cut Tape versus Tape & Reel) affect electrical performance?

A: No. Packaging format affects procurement, storage, and assembly logistics only. Electrical and mechanical specifications remain identical regardless of packaging format. Component performance on the circuit board is unaffected by packaging type.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed parts carry ROHS3 compliance certification, confirming compliance with Restriction of Hazardous Substances regulations. No additional environmental qualification is required.

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