RCS3216J513CS Equivalent & Substitute Parts Reference

Part Overview

The RCS3216J513CS is a 51 kOhms ±5% 0.25W thick film chip resistor in 1206 (3216 Metric) package manufactured by Samsung Electro-Mechanics. This component is classified as Active product status with anti-sulfur and moisture-resistant characteristics. The part is ROHS3 compliant with unlimited moisture sensitivity level (MSL 1).

Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are maintained within the allowed parameter tolerances for this resistor category. Alternatives may be required due to inventory availability, supply chain considerations, or specific application requirements for enhanced tolerance or power ratings.

Key Parameters

Parameter	Value	Unit
Resistance	51	kOhms
Tolerance	±5%	-
Power Rating	0.25	W (1/4W)
Package / Case	1206 (3216 Metric)	-
Composition	Thick Film	-
Temperature Coefficient	±100	ppm/°C
Operating Temperature Range	-55 to 155	°C
RoHS Status	ROHS3 Compliant	-
Moisture Sensitivity Level	1 (Unlimited)	-

Substitute Part Grouping Explanation

Substitution eligibility for the RCS3216J513CS is determined by the following critical parameters:

Primary Compatibility Criteria:

Resistance value: 51 kOhms (exact match required)
Package / Case: 1206 (3216 Metric) (exact match required)
Power rating: 0.25W minimum (equal or higher acceptable)
Composition: Thick Film
Operating temperature range: -55°C to 155°C minimum
RoHS3 compliance
MSL rating: 1 (Unlimited)

Tolerance Consideration: The main part specifies ±5% tolerance. Substitute parts with ±1% tolerance are electrically compatible and provide superior accuracy. Parts with ±5% tolerance maintain direct equivalence.

Feature Variations: Substitute parts may include additional features such as automotive AEC-Q200 qualification or pulse withstanding capability without affecting base substitutability. Product status variations (Active vs. Not For New Designs) are noted for design planning purposes.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Package	Temp Coeff (ppm/°C)	Op. Temp (°C)	Features	Product Status	RoHS
RCS3216J513CS	Samsung Electro-Mechanics	51k	±5%	0.25	1206	±100	-55 to 155	Anti-Sulfur, Moisture Resistant	Active	ROHS3
AC1206FR-0751KL	YAGEO	51k	±1%	0.25	1206	±100	-55 to 155	Automotive AEC-Q200, Moisture Resistant	Active	ROHS3
CR1206-FX-5102ELF	Bourns Inc.	51k	±1%	0.25	1206	±100	-55 to 155	Moisture Resistant	Active	ROHS3
CRCW120651K0FKEA	Vishay Dale	51k	±1%	0.25	1206	±100	-55 to 155	Automotive AEC-Q200	Active	ROHS3
CRCW120651K0FKEAHP	Vishay Dale	51k	±1%	0.75	1206	±100	-55 to 155	Automotive AEC-Q200, Pulse Withstanding	Active	ROHS3
ERJ-8ENF5102V	Panasonic Electronic Components	51k	±1%	0.25	1206	±100	-55 to 155	Automotive AEC-Q200	Not For New Designs	ROHS3
RC1206FR-0751KL	YAGEO	51k	±1%	0.25	1206	±100	-55 to 155	Moisture Resistant	Active	ROHS3
RC1206JR-0751KL	YAGEO	51k	±5%	0.25	1206	±100	-55 to 155	Moisture Resistant	Active	ROHS3

Engineering Selection Recommendations

Direct Equivalents (±5% Tolerance Match): RC1206JR-0751KL from YAGEO provides direct tolerance equivalence to the RCS3216J513CS with identical 0.25W power rating and 1206 package. Both parts maintain Active product status and ROHS3 compliance.

Enhanced Tolerance Alternatives (±1% Tolerance): AC1206FR-0751KL, CR1206-FX-5102ELF, CRCW120651K0FKEA, RC1206FR-0751KL, and ERJ-8ENF5102V all provide superior ±1% tolerance while maintaining the 0.25W power rating and 1206 package specification. These parts are suitable for applications requiring tighter resistance accuracy.

Automotive-Qualified Substitutes: AC1206FR-0751KL, CRCW120651K0FKEA, and ERJ-8ENF5102V carry AEC-Q200 automotive qualification. These parts are appropriate for automotive and high-reliability applications.

Enhanced Power Rating Option: CRCW120651K0FKEAHP provides 0.75W power rating in the same 1206 package with ±1% tolerance and AEC-Q200 qualification. This part is suitable for applications requiring higher pulse withstanding capability.

Legacy Status Consideration: ERJ-8ENF5102V is designated "Not For New Designs" by Panasonic. While electrically and mechanically compatible, this part should not be selected for new product development.

Frequently Asked Questions (FAQ)

Q: Can I substitute RC1206JR-0751KL for RCS3216J513CS in my design?

A: Yes. RC1206JR-0751KL is a direct equivalent with matching ±5% tolerance, 0.25W power rating, 1206 package, and identical operating temperature range. Both parts are ROHS3 compliant with MSL 1 rating.

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

A: The RCS3216J513CS specifies ±5% tolerance, meaning the actual resistance value can vary by up to 5% from the nominal 51 kOhms. Substitute parts with ±1% tolerance (AC1206FR-0751KL, CR1206-FX-5102ELF, CRCW120651K0FKEA, RC1206FR-0751KL, ERJ-8ENF5102V) provide tighter accuracy with variation limited to 1%. Both tolerance classes are electrically compatible; ±1% parts offer superior precision.

Q: Can I use CRCW120651K0FKEAHP as a substitute if my circuit requires higher power dissipation?

A: Yes. CRCW120651K0FKEAHP provides 0.75W power rating compared to the 0.25W rating of RCS3216J513CS, while maintaining the same 51 kOhms resistance, ±1% tolerance, 1206 package, and operating temperature range. The higher power rating accommodates increased current without thermal stress.

Q: Why is ERJ-8ENF5102V marked "Not For New Designs"?

A: ERJ-8ENF5102V is electrically and mechanically compatible with RCS3216J513CS but is designated "Not For New Designs" by Panasonic. This designation indicates the part is in legacy status. New product designs should select from parts with Active product status: AC1206FR-0751KL, CR1206-FX-5102ELF, CRCW120651K0FKEA, RC1206FR-0751KL, or RC1206JR-0751KL.

Q: What does AEC-Q200 qualification mean?

A: AEC-Q200 is an automotive industry standard qualification for passive components. Parts carrying this certification (AC1206FR-0751KL, CRCW120651K0FKEA, ERJ-8ENF5102V) have been tested and approved for automotive applications requiring enhanced reliability and performance under demanding conditions.

Q: Are all substitute parts available in the same packaging format?

A: Substitute parts are available in different packaging formats. RC1206FR-0751KL is supplied in Cut Tape (CT) & Digi-Reel format, while AC1206FR-0751KL, CR1206-FX-5102ELF, CRCW120651K0FKEA, CRCW120651K0FKEAHP, and ERJ-8ENF5102V are supplied in Tape & Reel (TR) format. Verify packaging compatibility with your procurement and assembly requirements.

Q: Can I use a substitute part with different physical dimensions?

A: All substitute parts maintain the 1206 (3216 Metric) package specification, ensuring mechanical compatibility with PCB footprints designed for RCS3216J513CS. Minor dimensional variations within the 1206 standard (length 3.10-3.20mm, width 1.60mm, height 0.60-0.75mm) do not affect PCB assembly or functionality.

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