RC3216F304CS Equivalent & Substitute Parts Reference

Part Overview

The RC3216F304CS is a 300 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 934 pieces currently in stock. The RC series resistor is designed for general-purpose applications requiring moisture-resistant thick film construction with standard industrial temperature range operation.

Equivalent and substitute parts are identified based on matching electrical specifications (resistance value, tolerance, power rating) and mechanical compatibility (package type, dimensions, termination count) while maintaining compliance with RoHS3 and REACH standards applicable to this component category.

Key Parameters

Parameter	Value	Unit
Resistance	300	kOhms
Tolerance	±1%	-
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
Moisture Sensitivity Level	1 (Unlimited)	-
RoHS Status	ROHS3 Compliant	-
Number of Terminations	2	-

Substitute Part Grouping Explanation

Substitution eligibility for the RC3216F304CS is determined by the following critical parameters:

Primary Matching Criteria (Mandatory for Direct Substitution):

Resistance value: 300 kOhms
Tolerance: ±1%
Power rating: 0.25W (1/4W)
Package type: 1206 (3216 Metric)
Composition: Thick Film
Temperature coefficient: ±100ppm/°C
Operating temperature range: -55°C to 155°C
Termination count: 2
RoHS3 compliance

Secondary Compatibility Factors:

Moisture Sensitivity Level: MSL 1 (Unlimited)
Physical dimensions within tolerance
Seated height compatibility

Parts are grouped into three categories based on substitution relationship:

Direct Substitutes (Identical Electrical & Mechanical Specifications): Parts meeting all primary matching criteria with identical power rating (0.25W) and no additional features beyond moisture resistance.

Compatible Substitutes (Matching Core Specifications with Enhanced Features): Parts matching all primary criteria but incorporating additional certifications (AEC-Q200 automotive qualification) or enhanced features (pulse withstanding capability). These parts are electrically and mechanically compatible but may include supplementary performance characteristics.

Similar Substitutes (Matching Core Specifications with Modified Power Rating): Parts matching resistance, tolerance, package, and composition but with different power ratings (0.5W or 0.75W). These require application-level verification for power dissipation compatibility.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance (kOhms)	Tolerance	Power (W)	Package	Temp Coeff (ppm/°C)	Op Temp (°C)	Features	Product Status	RoHS3
RC3216F304CS	Samsung Electro-Mechanics	300	±1%	0.25	1206	±100	-55 to 155	Moisture Resistant	Active	Yes
CR1206-FX-3003ELF	Bourns Inc.	300	±1%	0.25	1206	±100	-55 to 155	Moisture Resistant	Active	Yes
ERJ-8ENF3003V	Panasonic Electronic Components	300	±1%	0.25	1206	±100	-55 to 155	Automotive AEC-Q200	Not For New Designs	Yes
RC1206FR-07300KL	YAGEO	300	±1%	0.25	1206	±100	-55 to 155	Moisture Resistant	Active	Yes
RMCF1206FT300K	Stackpole Electronics Inc	300	±1%	0.25	1206	±100	-55 to 155	Automotive AEC-Q200	Active	Yes
AC1206FR-07300KL	YAGEO	300	±1%	0.25	1206	±100	-55 to 155	Automotive AEC-Q200, Moisture Resistant	Active	Yes
CRCW1206300KFKEA	Vishay Dale	300	±1%	0.25	1206	±100	-55 to 155	Automotive AEC-Q200	Active	Yes
CRCW1206300KFKEAHP	Vishay Dale	300	±1%	0.75	1206	±100	-55 to 155	Automotive AEC-Q200, Pulse Withstanding	Active	Yes
CRS1206-FX-3003ELF	Bourns Inc.	300	±1%	0.5	1206	±100	-55 to 155	High Voltage, Pulse Withstanding	Active	Yes
ESR18EZPF3003	Rohm Semiconductor	300	±1%	0.5	1206	±100	-55 to 155	Automotive AEC-Q200, Pulse Withstanding	Active	Yes
KTR18EZPF3003	Rohm Semiconductor	300	±1%	0.25	1206	±100	-55 to 155	Automotive AEC-Q200, High Voltage	Active	Yes

Engineering Selection Recommendations

For Direct Replacement (Identical Specifications):

The following parts provide direct substitution for RC3216F304CS with matching 0.25W power rating and identical electrical characteristics:

CR1206-FX-3003ELF (Bourns Inc.): Active product status, moisture-resistant thick film construction, 14,571 units in stock. Suitable for applications requiring standard industrial-grade performance without automotive qualification.
RC1206FR-07300KL (YAGEO): Active product status, moisture-resistant thick film, 4,300 units in stock. Functionally equivalent with slightly reduced physical dimensions (3.10mm length vs. 3.20mm).

For Applications Requiring Automotive Qualification (AEC-Q200):

RMCF1206FT300K (Stackpole Electronics Inc): Active product status, AEC-Q200 qualified, 16,831 units in stock. Maintains 0.25W power rating with automotive-grade reliability.
AC1206FR-07300KL (YAGEO): Active product status, AEC-Q200 qualified with moisture resistance, 8,778 units in stock. Combines automotive qualification with enhanced environmental protection.
KTR18EZPF3003 (Rohm Semiconductor): Active product status, AEC-Q200 qualified with high-voltage capability, 24,965 units in stock. Maintains 0.25W rating with extended voltage performance margin.
CRCW1206300KFKEA (Vishay Dale): Active product status, AEC-Q200 qualified, 19,595 units in stock. Standard automotive-grade substitute with lowest seated height (0.024").

For Applications Requiring Enhanced Power Dissipation:

CRCW1206300KFKEAHP (Vishay Dale): Active product status, 0.75W power rating with pulse withstanding capability, 8,593 units in stock. Use only when application requires higher power handling than 0.25W specification.
CRS1206-FX-3003ELF (Bourns Inc.): Active product status, 0.5W power rating with high-voltage and pulse withstanding features, 7,660 units in stock. Suitable for circuits requiring enhanced transient protection.
ESR18EZPF3003 (Rohm Semiconductor): Active product status, 0.5W power rating with AEC-Q200 qualification and pulse withstanding, 13,946 units in stock. Automotive-qualified option with increased power margin.

Parts to Avoid for New Designs:

ERJ-8ENF3003V (Panasonic Electronic Components): Product status listed as "Not For New Designs." While electrically compatible, this part should not be selected for new circuit development.

Frequently Asked Questions (FAQ)

Q1: Can I use a substitute part with higher power rating (0.5W or 0.75W) in place of the 0.25W RC3216F304CS?

A: Yes, higher power-rated parts (0.5W or 0.75W) are mechanically and electrically compatible in the 1206 package. However, this substitution is only appropriate if your application circuit design permits the physical size variation or if higher power dissipation capability is beneficial. Verify that the substitute part's seated height does not exceed your PCB layout constraints. Parts like CRCW1206300KFKEAHP (0.75W) and CRS1206-FX-3003ELF (0.5W) are suitable upgrades when additional thermal margin is required.

Q2: What is the difference between moisture-resistant and automotive AEC-Q200 qualified resistors?

A: Moisture-resistant thick film resistors (such as CR1206-FX-3003ELF and RC1206FR-07300KL) are designed to withstand humidity exposure with MSL 1 rating. Automotive AEC-Q200 qualified parts (such as RMCF1206FT300K and AC1206FR-07300KL) meet additional reliability and qualification standards required for automotive applications, including thermal cycling, mechanical shock, and extended temperature operation. AEC-Q200 parts are suitable for both automotive and industrial applications; moisture-resistant parts are suitable for general industrial use.

Q3: Are all substitute parts available in the same packaging format?

A: All listed substitute parts are supplied in 1206 (3216 Metric) package with Tape & Reel (TR) packaging. Physical dimensions vary slightly between manufacturers: length ranges from 3.10mm to 3.20mm, and seated height ranges from 0.024" to 0.030" (0.60mm to 0.75mm). These variations are within standard 1206 package tolerances and do not affect PCB footprint compatibility. Verify your specific PCB design constraints if height clearance is critical.

Q4: Can I substitute ERJ-8ENF3003V for RC3216F304CS?

A: ERJ-8ENF3003V is electrically and mechanically compatible with identical 300 kOhms ±1% 0.25W specifications. However, this part carries "Not For New Designs" product status from Panasonic. While existing inventory (101,746 units) is available, this part should not be selected for new circuit development. Use active-status alternatives such as CR1206-FX-3003ELF, RC1206FR-07300KL, or RMCF1206FT300K instead.

Q5: Which substitute offers the best combination of availability and automotive qualification?

A: KTR18EZPF3003 (Rohm Semiconductor) provides the highest inventory level (24,965 units) with AEC-Q200 automotive qualification and 0.25W power rating matching the original specification. RMCF1206FT300K (Stackpole Electronics Inc) with 16,831 units and CRCW1206300KFKEA (Vishay Dale) with 19,595 units are also strong options with active product status and automotive qualification.

Q6: What compliance certifications apply to all substitute parts?

A: All listed substitute parts maintain RoHS3 compliance and REACH unaffected status, matching the original RC3216F304CS. Moisture Sensitivity Level is MSL 1 (Unlimited) for all parts, indicating no moisture precautions required during storage or handling. ECCN classification is EAR99 and HTSUS code is 8533.21.0030 for all parts in this category.

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