RCS3216F122CS Equivalent & Substitute Parts Reference

Part Overview

The RCS3216F122CS is a 1.2 kOhms ±1% 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 construction. Equivalent and substitute parts are identified based on matching electrical specifications, mechanical dimensions, and environmental ratings to ensure direct functional replacement in circuit applications.

Key Parameters

Parameter	Specification
Resistance Value	1.2 kOhms
Tolerance	±1%
Power Rating	0.25W (1/4W)
Package / Case	1206 (3216 Metric)
Composition	Thick Film
Temperature Coefficient	±100ppm/°C
Operating Temperature Range	-55°C ~ 155°C
Moisture Sensitivity Level (MSL)	1 (Unlimited)
RoHS Status	ROHS3 Compliant
REACH Status	REACH Unaffected

Substitute Part Grouping Explanation

Substitute parts for the RCS3216F122CS are qualified based on the following criteria:

Electrical Parameters (Critical):

Resistance value: 1.2 kOhms
Tolerance: ±1%
Temperature coefficient: ±100ppm/°C
Operating temperature range: -55°C ~ 155°C

Mechanical Parameters (Critical):

Package type: 1206 (3216 Metric)
Number of terminations: 2
Physical dimensions compatible with 1206 footprint

Power Rating Consideration:

Primary substitutes maintain 0.25W (1/4W) rating
CRCW12061K20FKEAHP variant provides 0.75W (3/4W) rating for applications requiring higher power dissipation capacity

Environmental & Compliance Parameters:

Composition: Thick Film
RoHS3 Compliance required
REACH Unaffected status
MSL 1 (Unlimited moisture sensitivity level)

Product Status:

Active status preferred for new designs
ERJ-8ENF1201V marked "Not For New Designs" but functionally equivalent

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Package	Temp Coeff	Op. Temp Range	Features	Product Status	RoHS
RCS3216F122CS	Samsung Electro-Mechanics	1.2 kΩ	±1%	0.25	1206	±100ppm/°C	-55~155°C	Anti-Sulfur, Moisture Resistant	Active	ROHS3
AC1206FR-071K2L	YAGEO	1.2 kΩ	±1%	0.25	1206	±100ppm/°C	-55~155°C	Automotive AEC-Q200, Moisture Resistant	Active	ROHS3
CR1206-FX-1201ELF	Bourns Inc.	1.2 kΩ	±1%	0.25	1206	±100ppm/°C	-55~155°C	Moisture Resistant	Active	ROHS3
CRCW12061K20FKEA	Vishay Dale	1.2 kΩ	±1%	0.25	1206	±100ppm/°C	-55~155°C	Automotive AEC-Q200	Active	ROHS3
CRCW12061K20FKEAHP	Vishay Dale	1.2 kΩ	±1%	0.75	1206	±100ppm/°C	-55~155°C	Automotive AEC-Q200, Pulse Withstanding	Active	ROHS3
ERJ-8ENF1201V	Panasonic Electronic Components	1.2 kΩ	±1%	0.25	1206	±100ppm/°C	-55~155°C	Automotive AEC-Q200	Not For New Designs	ROHS3
RC1206FR-071K2L	YAGEO	1.2 kΩ	±1%	0.25	1206	±100ppm/°C	-55~155°C	Moisture Resistant	Active	ROHS3

Engineering Selection Recommendations

For Direct Replacement (0.25W Applications):

CR1206-FX-1201ELF (Bourns Inc.) and RC1206FR-071K2L (YAGEO) are functionally equivalent substitutes with Active product status. Both maintain identical electrical specifications and 1206 package compatibility. CR1206-FX-1201ELF offers highest inventory availability (29,328 pcs) for supply chain continuity.

For Automotive Applications:

AC1206FR-071K2L, CRCW12061K20FKEA, and CRCW12061K20FKEAHP all carry AEC-Q200 automotive qualification. Selection depends on power requirement: CRCW12061K20FKEA for standard 0.25W applications, CRCW12061K20FKEAHP for 0.75W pulse-withstanding requirements.

For Legacy Design Maintenance:

ERJ-8ENF1201V (Panasonic) is functionally equivalent but marked "Not For New Designs." Use only for existing production continuity or repair applications where component history requires exact manufacturer match.

Compliance Verification:

All substitute parts maintain ROHS3 compliance and REACH Unaffected status, matching the original RCS3216F122CS environmental requirements.

Frequently Asked Questions (FAQ)

Q: Can CRCW12061K20FKEAHP (0.75W) replace RCS3216F122CS (0.25W)?

A: Yes, electrically and mechanically. The 0.75W rating provides higher power dissipation capacity. Use when circuit design permits or requires increased thermal margin. No circuit modification necessary.

Q: What is the difference between AC1206FR-071K2L and RC1206FR-071K2L?

A: AC1206FR-071K2L includes Automotive AEC-Q200 qualification; RC1206FR-071K2L does not. Both are YAGEO products with identical electrical specifications and 1206 package. Select AC variant for automotive applications.

Q: Why is ERJ-8ENF1201V marked "Not For New Designs"?

A: This designation indicates Panasonic has discontinued active development for this part number. Existing inventory remains available for legacy system support. For new designs, select from Active status alternatives.

Q: Are all substitutes compatible with the same PCB footprint?

A: Yes. All listed substitutes use 1206 (3216 Metric) package with 2 terminations. Physical dimensions vary within tolerance (length 3.10-3.20mm, width 1.60mm, height 0.60-0.75mm seated), but all fit standard 1206 footprints.

Q: What does MSL 1 (Unlimited) mean for moisture sensitivity?

A: MSL 1 indicates the component has unlimited shelf life without moisture bake-out requirements. All listed parts maintain this specification, requiring no special storage or handling procedures.

Q: Can I use these substitutes in high-temperature applications?

A: Yes. All parts operate across -55°C to 155°C range with ±100ppm/°C temperature coefficient. Verify circuit design accounts for resistance drift at temperature extremes.

Q: Which substitute offers best supply availability?

A: CR1206-FX-1201ELF (Bourns) with 29,328 pcs in stock, followed by RC1206FR-071K2L (YAGEO) with 169,141 pcs. CRCW12061K20FKEAHP (Vishay Dale) offers highest inventory at 120,664 pcs for 0.75W variant.

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