RCS3216J301CS Equivalent & Substitute Parts Reference

Part Overview

The RCS3216J301CS is a 300 Ohm ±5% 0.25W (1/4W) chip resistor manufactured by Samsung Electro-Mechanics in the 1206 (3216 Metric) package. This thick film resistor features anti-sulfur and moisture-resistant construction, operating across -55°C to 155°C with a temperature coefficient of ±100ppm/°C. The part is ROHS3 compliant with MSL 1 (unlimited moisture sensitivity level) and is currently in active production status with 1018 pieces in stock.

Equivalent and substitute parts are necessary when the primary part experiences supply constraints, extended lead times, or when design requirements necessitate alternative performance characteristics such as improved tolerance or higher power ratings within the same package footprint.

Key Parameters

Parameter	Value
Resistance	300 Ohms
Tolerance	±5%
Power Rating	0.25W (1/4W)
Package / Case	1206 (3216 Metric)
Composition	Thick Film
Operating Temperature Range	-55°C to 155°C
Temperature Coefficient	±100ppm/°C
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the RCS3216J301CS is determined by strict adherence to the following electrical and mechanical parameters:

Primary Substitution Criteria:

Resistance value: 300 Ohms (exact match required)
Package / Case: 1206 (3216 Metric) (exact match required)
Power rating: 0.25W minimum (equal or higher acceptable)
Tolerance: ±5% or better (tighter tolerance acceptable)
Composition: Thick Film
Operating temperature range: -55°C to 155°C minimum
Temperature coefficient: ±100ppm/°C
RoHS compliance: ROHS3 Compliant
Moisture sensitivity: MSL 1

Substitution Logic: Parts are grouped into two categories based on tolerance specification. Direct equivalents maintain ±5% tolerance matching the RCS3216J301CS. Enhanced substitutes offer ±1% tolerance with identical or superior electrical and mechanical characteristics. All substitute parts maintain the 1206 package, 0.25W power rating (or higher), and full temperature range compatibility. Power rating upgrades (such as 0.75W variants) are acceptable substitutes for applications requiring additional thermal margin within the same package envelope.

Parameter Comparison

Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Package	Temp Coeff	Temp Range	RoHS	MSL	Product Status
RCS3216J301CS	Samsung Electro-Mechanics	300 Ω	±5%	0.25	1206	±100ppm/°C	-55 to 155°C	ROHS3	1	Active
AC1206JR-07300RL	YAGEO	300 Ω	±5%	0.25	1206	±100ppm/°C	-55 to 155°C	ROHS3	1	Active
AC1206FR-07300RL	YAGEO	300 Ω	±1%	0.25	1206	±100ppm/°C	-55 to 155°C	ROHS3	1	Active
CR1206-FX-3000ELF	Bourns Inc.	300 Ω	±1%	0.25	1206	±100ppm/°C	-55 to 155°C	ROHS3	1	Active
CRCW1206300RFKEA	Vishay Dale	300 Ω	±1%	0.25	1206	±100ppm/°C	-55 to 155°C	ROHS3	1	Active
CRCW1206300RFKEAHP	Vishay Dale	300 Ω	±1%	0.75	1206	±100ppm/°C	-55 to 155°C	ROHS3	1	Active
ERJ-8ENF3000V	Panasonic Electronic Components	300 Ω	±1%	0.25	1206	±100ppm/°C	-55 to 155°C	ROHS3	1	Not For New Designs
RC1206FR-07300RL	YAGEO	300 Ω	±1%	0.25	1206	±100ppm/°C	-55 to 155°C	ROHS3	1	Active
RC1206JR-07300RL	YAGEO	300 Ω	±5%	0.25	1206	±100ppm/°C	-55 to 155°C	ROHS3	1	Active

Engineering Selection Recommendations

Direct Equivalents (±5% Tolerance Match):

AC1206JR-07300RL and RC1206JR-07300RL are direct functional equivalents to the RCS3216J301CS, maintaining identical tolerance, power rating, and package specifications. Both parts are in active production status. AC1206JR-07300RL includes automotive AEC-Q200 qualification. RC1206JR-07300RL is available in Cut Tape and Digi-Reel packaging. Selection between these options depends on packaging requirements and supply availability.

Enhanced Substitutes (±1% Tolerance):

AC1206FR-07300RL, CR1206-FX-3000ELF, CRCW1206300RFKEA, RC1206FR-07300RL, and CRCW1206300RFKEAHP offer improved tolerance specification (±1%) while maintaining all other electrical and mechanical parameters. These parts are suitable for applications requiring tighter resistance tolerance. AC1206FR-07300RL, CRCW1206300RFKEA, and CRCW1206300RFKEAHP carry automotive AEC-Q200 certification. All are in active production status with the exception of ERJ-8ENF3000V, which is marked "Not For New Designs."

Higher Power Rating Option:

CRCW1206300RFKEAHP provides 0.75W (3/4W) power rating within the same 1206 package footprint, offering enhanced thermal capability for pulse-withstanding applications while maintaining ±1% tolerance and AEC-Q200 automotive qualification.

Inventory Considerations:

RC1206FR-07300RL offers the highest inventory availability (70,300 pieces), followed by ERJ-8ENF3000V (45,846 pieces) and CRCW1206300RFKEAHP (28,049 pieces). The RCS3216J301CS primary part has 1,018 pieces in stock.

Frequently Asked Questions (FAQ)

Q: Can I substitute a ±1% tolerance part for the ±5% RCS3216J301CS?

A: Yes. A ±1% tolerance part is a valid substitute because tighter tolerance is a performance enhancement. The ±1% specification is a subset of the ±5% tolerance band, ensuring compatibility with any circuit designed for ±5% tolerance.

Q: Are all substitute parts compatible with the same PCB footprint?

A: All listed substitutes use the 1206 (3216 Metric) package. However, physical dimensions vary slightly between manufacturers. Verify maximum height specifications: RCS3216J301CS (0.66mm), AC1206JR-07300RL (0.65mm), CR1206-FX-3000ELF (0.75mm), CRCW1206300RFKEA (0.60mm), CRCW1206300RFKEAHP (0.65mm), ERJ-8ENF3000V (0.70mm), RC1206FR-07300RL (0.65mm), RC1206JR-07300RL (0.65mm). All heights are within typical PCB assembly clearance specifications.

Q: What is the difference between packaging options (Tape & Reel vs. Cut Tape)?

A: Tape & Reel (TR) packaging is standard for high-volume automated assembly. Cut Tape (CT) and Digi-Reel packaging are suitable for lower-volume or manual assembly operations. Both formats contain identical components; packaging selection depends on assembly process requirements.

Q: Why is ERJ-8ENF3000V marked "Not For New Designs"?

A: This designation indicates the part is in mature production phase with no active development. While the part remains available and functional, Panasonic recommends alternative parts for new circuit designs. Existing designs using this part may continue to source it during its available production window.

Q: Can I use CRCW1206300RFKEAHP (0.75W) in place of the 0.25W RCS3216J301CS?

A: Yes. Higher power rating is acceptable for direct substitution. The 0.75W rating provides additional thermal margin and pulse-withstanding capability. The component will operate within specification in any circuit designed for 0.25W or higher power dissipation.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts carry ROHS3 compliance certification, matching the RCS3216J301CS environmental compliance status.

Q: Which substitute parts carry automotive AEC-Q200 qualification?

A: AC1206JR-07300RL, AC1206FR-07300RL, CRCW1206300RFKEA, CRCW1206300RFKEAHP, and ERJ-8ENF3000V carry AEC-Q200 automotive qualification. This certification is not required for the RCS3216J301CS but is available in multiple substitute options for automotive applications.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message