RC3216F301CS Equivalent & Substitute Parts

Part Overview

The RC3216F301CS is a 300 Ohm ±1% 0.25W thick film chip resistor manufactured by Samsung Electro-Mechanics in the 1206 (3216 Metric) package. This component is classified as Active product status and is RoHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating. The RC3216F301CS features moisture-resistant construction suitable for general industrial and commercial applications. Equivalent and substitute parts are necessary when the primary part is unavailable, when alternative packaging formats are required, or when design specifications permit selection from qualified alternative manufacturers meeting identical electrical and mechanical parameters.

Key Parameters

Parameter	Value
Resistance	300 Ohms
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
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)
Number of Terminations	2

Substitute Part Grouping Explanation

Substitution eligibility for the RC3216F301CS is determined by strict equivalence across the following critical parameters: resistance value (300 Ohms), tolerance (±1%), power rating (0.25W), package type (1206), composition (thick film), temperature coefficient (±100ppm/°C), operating temperature range (-55°C ~ 155°C), and compliance certifications (RoHS3, MSL 1). Parts are classified into two categories:

Direct Substitutes maintain all electrical and mechanical specifications with identical power ratings and standard moisture-resistant or automotive-grade construction. These parts are interchangeable in applications where the original specification is maintained.

Similar Substitutes meet all core electrical parameters but include enhanced features such as automotive AEC-Q200 qualification, pulse withstanding capability, or high voltage rating. These parts are suitable for applications requiring additional performance characteristics beyond the base specification.

Dimensional variations within the 1206 package envelope (length 0.122" to 0.126", height 0.024" to 0.030") are acceptable for PCB footprint compatibility. Packaging format differences (Tape & Reel, Cut Tape, Digi-Reel) do not affect electrical or mechanical performance and are determined by procurement and assembly requirements.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Package	Temp Coeff	Op Temp Range	RoHS3	MSL	Product Status	Features
RC3216F301CS	Samsung Electro-Mechanics	300 Ω	±1%	0.25	1206	±100ppm/°C	-55°C ~ 155°C	Yes	1	Active	Moisture Resistant
CR1206-FX-3000ELF	Bourns Inc.	300 Ω	±1%	0.25	1206	±100ppm/°C	-55°C ~ 155°C	Yes	1	Active	Moisture Resistant
ERJ-8ENF3000V	Panasonic Electronic Components	300 Ω	±1%	0.25	1206	±100ppm/°C	-55°C ~ 155°C	Yes	1	Not For New Designs	Automotive AEC-Q200
RC1206FR-07300RL	YAGEO	300 Ω	±1%	0.25	1206	±100ppm/°C	-55°C ~ 155°C	Yes	1	Active	Moisture Resistant
RMCF1206FT300R	Stackpole Electronics Inc	300 Ω	±1%	0.25	1206	±100ppm/°C	-55°C ~ 155°C	Yes	1	Active	Automotive AEC-Q200
AC1206FR-07300RL	YAGEO	300 Ω	±1%	0.25	1206	±100ppm/°C	-55°C ~ 155°C	Yes	1	Active	Automotive AEC-Q200, Moisture Resistant
CRCW1206300RFKEA	Vishay Dale	300 Ω	±1%	0.25	1206	±100ppm/°C	-55°C ~ 155°C	Yes	1	Active	Automotive AEC-Q200
CRCW1206300RFKEAHP	Vishay Dale	300 Ω	±1%	0.75	1206	±100ppm/°C	-55°C ~ 155°C	Yes	1	Active	Automotive AEC-Q200, Pulse Withstanding
KTR18EZPF3000	Rohm Semiconductor	300 Ω	±1%	0.25	1206	±100ppm/°C	-55°C ~ 155°C	Yes	1	Active	Automotive AEC-Q200, High Voltage

Engineering Selection Recommendations

Direct Substitutes for Standard Applications:

CR1206-FX-3000ELF (Bourns Inc.) and RC1206FR-07300RL (YAGEO) are direct functional equivalents with Active product status and moisture-resistant construction matching the RC3216F301CS specification. Both parts maintain identical electrical parameters and are suitable for immediate substitution in applications where the original part is unavailable.

Substitutes for Automotive Applications:

RMCF1206FT300R (Stackpole Electronics Inc.), AC1206FR-07300RL (YAGEO), CRCW1206300RFKEA (Vishay Dale), and KTR18EZPF3000 (Rohm Semiconductor) are qualified to automotive AEC-Q200 standard with Active product status. These parts are appropriate for automotive and high-reliability applications requiring enhanced qualification documentation.

Enhanced Power Rating Option:

CRCW1206300RFKEAHP (Vishay Dale) provides 0.75W power rating with pulse withstanding capability in the same 1206 package. This part is suitable for applications requiring higher transient power dissipation while maintaining the 300 Ohm resistance and ±1% tolerance specification.

Legacy Status Consideration:

ERJ-8ENF3000V (Panasonic Electronic Components) carries "Not For New Designs" product status. This part meets all electrical and mechanical specifications but should be used only for replacement or maintenance of existing designs where continuity is required.

Frequently Asked Questions (FAQ)

Q: Can CRCW1206300RFKEAHP (0.75W) be used as a direct replacement for RC3216F301CS (0.25W)?

A: Yes. The CRCW1206300RFKEAHP maintains identical resistance (300 Ohms), tolerance (±1%), package (1206), and operating temperature range (-55°C ~ 155°C). The higher power rating (0.75W vs 0.25W) provides additional thermal margin and does not create incompatibility. The part occupies the same PCB footprint and is electrically interchangeable.

Q: Are there differences in physical dimensions between substitute parts?

A: Minor dimensional variations exist within the 1206 package specification. Length ranges from 0.122" to 0.126" and height from 0.024" to 0.030". These variations are within standard 1206 package tolerances and do not affect PCB footprint compatibility or assembly processes.

Q: What is the significance of AEC-Q200 qualification on substitute parts?

A: AEC-Q200 is an automotive industry qualification standard. Parts carrying this certification (RMCF1206FT300R, AC1206FR-07300RL, CRCW1206300RFKEA, KTR18EZPF3000) have undergone additional reliability testing and are suitable for automotive and high-reliability applications. Non-automotive qualified parts (CR1206-FX-3000ELF, RC1206FR-07300RL) are suitable for general industrial and commercial applications.

Q: Does packaging format (Tape & Reel vs Cut Tape) affect electrical performance?

A: No. Packaging format is a procurement and assembly consideration only. Tape & Reel, Cut Tape, and Digi-Reel formats contain identical components with identical electrical and mechanical specifications. Selection is based on manufacturing process requirements and inventory management.

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

A: "Not For New Designs" indicates the manufacturer has discontinued active development of this product line. The part remains functionally equivalent and suitable for replacement or maintenance of existing designs. New designs should select from Active status alternatives such as CR1206-FX-3000ELF, RC1206FR-07300RL, or RMCF1206FT300R.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts carry RoHS3 compliance certification matching the RC3216F301CS specification. All parts also maintain MSL 1 (Unlimited) moisture sensitivity rating.

Q: What is the difference between moisture-resistant and automotive-qualified parts?

A: Moisture-resistant parts (CR1206-FX-3000ELF, RC1206FR-07300RL) are designed for general industrial environments with standard humidity protection. Automotive-qualified parts (RMCF1206FT300R, AC1206FR-07300RL, CRCW1206300RFKEA, KTR18EZPF3000) undergo additional testing for temperature cycling, vibration, and reliability per AEC-Q200 standard. Both types are suitable for their respective application environments.

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