RCS3216J334CS Equivalent & Substitute Parts Reference

Part Overview

The RCS3216J334CS is a 330 kOhms ±5% 0.25W thick film chip resistor in 1206 (3216 Metric) package manufactured by Samsung Electro-Mechanics. This component features anti-sulfur and moisture-resistant construction with an operating temperature range of -55°C to 155°C and is ROHS3 compliant. The part is currently active in production with 749 units in stock.

Equivalent and substitute parts are necessary when the primary part becomes unavailable, when design requirements demand higher tolerance specifications, when automotive-grade certifications are required, or when alternative packaging formats are needed for manufacturing optimization.

Key Parameters

Parameter	Value	Substitution Relevance
Resistance Value	330 kOhms	Critical - must match exactly
Tolerance	±5%	Critical - determines circuit accuracy requirements
Power Rating	0.25W (1/4W)	Critical - must meet or exceed thermal requirements
Package Type	1206 (3216 Metric)	Critical - determines PCB footprint compatibility
Composition	Thick Film	Important - affects performance characteristics
Operating Temperature	-55°C to 155°C	Important - must support application environment
Temperature Coefficient	±100ppm/°C	Important - affects stability across temperature range
Moisture Sensitivity Level	MSL 1 (Unlimited)	Important - determines storage and handling requirements
RoHS Compliance	ROHS3 Compliant	Important - regulatory requirement

Substitute Part Grouping Explanation

Substitution logic for the RCS3216J334CS is based on the following criteria:

Primary Substitution Criteria (Must Match):

Resistance value: 330 kOhms
Package type: 1206 (3216 Metric)
Composition: Thick Film
Operating temperature range: -55°C to 155°C minimum
Temperature coefficient: ±100ppm/°C
Moisture sensitivity: MSL 1 (Unlimited)
RoHS compliance: ROHS3 Compliant

Secondary Substitution Criteria (Flexible):

Tolerance: ±5% (primary) or ±1% (higher precision alternative)
Power rating: 0.25W (primary) or 0.75W (higher power capability)
Packaging format: Tape & Reel (TR), Cut Tape (CT), or Digi-Reel
Automotive certification: AEC-Q200 (optional enhancement)
Manufacturer: Multiple qualified sources available

Substitute parts are grouped into two categories:

Category A - Direct Equivalents (±5% Tolerance): AC1206JR-07330KL, RC1206JR-07330KL. These parts maintain identical tolerance specifications and are suitable for direct replacement in applications where ±5% accuracy is specified.

Category B - Higher Precision Alternatives (±1% Tolerance): AC1206FR-07330KL, CR1206-FX-3303ELF, CRCW1206330KFKEA, ERJ-8ENF3303V, KTR18EZPF3303, RC1206FR-07330KL. These parts offer improved tolerance performance and are suitable for applications requiring tighter resistance accuracy.

Category C - Enhanced Power Rating: CRCW1206330KFKEAHP. This part provides 0.75W power rating with pulse withstanding capability while maintaining the 1206 package footprint, suitable for applications with higher thermal demands.

Parameter Comparison

Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Package	Temp Coeff	Op. Temp (°C)	AEC-Q200	Product Status
RCS3216J334CS	Samsung Electro-Mechanics	330 kΩ	±5%	0.25	1206	±100ppm/°C	-55 to 155	No	Active
AC1206JR-07330KL	YAGEO	330 kΩ	±5%	0.25	1206	±100ppm/°C	-55 to 155	Yes	Active
RC1206JR-07330KL	YAGEO	330 kΩ	±5%	0.25	1206	±100ppm/°C	-55 to 155	No	Active
AC1206FR-07330KL	YAGEO	330 kΩ	±1%	0.25	1206	±100ppm/°C	-55 to 155	Yes	Active
RC1206FR-07330KL	YAGEO	330 kΩ	±1%	0.25	1206	±100ppm/°C	-55 to 155	No	Active
CR1206-FX-3303ELF	Bourns Inc.	330 kΩ	±1%	0.25	1206	±100ppm/°C	-55 to 155	No	Active
CRCW1206330KFKEA	Vishay Dale	330 kΩ	±1%	0.25	1206	±100ppm/°C	-55 to 155	Yes	Active
CRCW1206330KFKEAHP	Vishay Dale	330 kΩ	±1%	0.75	1206	±100ppm/°C	-55 to 155	Yes	Active
ERJ-8ENF3303V	Panasonic Electronic Components	330 kΩ	±1%	0.25	1206	±100ppm/°C	-55 to 155	Yes	Not For New Designs
KTR18EZPF3303	Rohm Semiconductor	330 kΩ	±1%	0.25	1206	±100ppm/°C	-55 to 155	Yes	Active

Engineering Selection Recommendations

For Direct Replacement (Identical Specifications): Select AC1206JR-07330KL or RC1206JR-07330KL when the application requires ±5% tolerance matching and the original RCS3216J334CS becomes unavailable. Both parts maintain identical electrical and thermal characteristics. AC1206JR-07330KL includes AEC-Q200 automotive certification, providing additional qualification for automotive applications.

For Improved Tolerance Applications: Select from the ±1% tolerance alternatives (AC1206FR-07330KL, RC1206FR-07330KL, CR1206-FX-3303ELF, CRCW1206330KFKEA, KTR18EZPF3303) when circuit design requires tighter resistance accuracy. These parts are electrically compatible with the RCS3216J334CS while offering superior tolerance performance. CRCW1206330KFKEA and KTR18EZPF3303 include AEC-Q200 certification for automotive applications.

For Automotive Applications: Select parts with AEC-Q200 certification: AC1206JR-07330KL (±5%), AC1206FR-07330KL (±1%), CRCW1206330KFKEA (±1%), CRCW1206330KFKEAHP (±1%, 0.75W), ERJ-8ENF3303V (±1%), or KTR18EZPF3303 (±1%). These parts meet automotive-grade reliability and qualification standards.

For Enhanced Power Dissipation: Select CRCW1206330KFKEAHP when thermal requirements exceed 0.25W. This part provides 0.75W power rating with pulse withstanding capability while maintaining the 1206 package footprint and AEC-Q200 certification.

For New Design Implementations: Avoid ERJ-8ENF3303V, which carries "Not For New Designs" status. Select from active production parts: AC1206JR-07330KL, RC1206JR-07330KL, AC1206FR-07330KL, RC1206FR-07330KL, CR1206-FX-3303ELF, CRCW1206330KFKEA, CRCW1206330KFKEAHP, or KTR18EZPF3303.

Packaging Considerations: AC1206JR-07330KL, AC1206FR-07330KL, CR1206-FX-3303ELF, CRCW1206330KFKEA, CRCW1206330KFKEAHP, ERJ-8ENF3303V, and KTR18EZPF3303 are supplied in Tape & Reel (TR) format. RC1206FR-07330KL is available in Cut Tape (CT) & Digi-Reel format. RC1206JR-07330KL is available in Tape & Reel format. Verify packaging compatibility with manufacturing equipment requirements.

Frequently Asked Questions (FAQ)

Q: Can I use a ±1% tolerance part as a substitute for the ±5% RCS3216J334CS?

A: Yes. A ±1% tolerance part is a direct electrical upgrade and will function correctly in any application designed for ±5% tolerance. The tighter tolerance provides improved circuit accuracy without introducing compatibility issues. Verify that the substitute part maintains identical resistance value (330 kOhms), package type (1206), power rating (0.25W minimum), and operating temperature range (-55°C to 155°C).

Q: What is the difference between Tape & Reel and Cut Tape packaging?

A: Tape & Reel (TR) packaging supplies components on continuous tape wound on reels, suitable for high-volume automated assembly. Cut Tape (CT) & Digi-Reel packaging supplies components on tape segments or alternative reel formats, suitable for lower-volume or mixed-component assembly. Both formats contain identical components; selection depends on manufacturing equipment compatibility and order volume requirements.

Q: Can I substitute the RCS3216J334CS with CRCW1206330KFKEAHP (0.75W rating)?

A: Yes, the CRCW1206330KFKEAHP is electrically and mechanically compatible. The higher 0.75W power rating provides additional thermal margin and is suitable for applications with higher power dissipation requirements. The part maintains the 1206 package footprint, identical resistance value, and operating temperature range. This substitution is appropriate when thermal analysis indicates power dissipation approaching or exceeding 0.25W.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All substitute parts listed maintain ROHS3 compliance, matching the regulatory status of the RCS3216J334CS. All parts are also MSL 1 (Unlimited) moisture sensitivity level and REACH unaffected.

Q: Which substitute parts include AEC-Q200 automotive certification?

A: The following parts include AEC-Q200 certification: AC1206JR-07330KL, AC1206FR-07330KL, CRCW1206330KFKEA, CRCW1206330KFKEAHP, ERJ-8ENF3303V, and KTR18EZPF3303. Select these parts for automotive applications requiring automotive-grade component qualification.

Q: What is the temperature coefficient specification and why does it matter?

A: All listed parts maintain ±100ppm/°C temperature coefficient, matching the RCS3216J334CS specification. This parameter defines the resistance change per degree Celsius across the operating temperature range. The identical specification ensures consistent circuit performance across the -55°C to 155°C operating range without introducing temperature-related accuracy drift.

Q: Can I use ERJ-8ENF3303V in a new design?

A: No. ERJ-8ENF3303V carries "Not For New Designs" product status, indicating the manufacturer recommends against using this part in new applications. Select from active production alternatives: AC1206JR-07330KL, RC1206JR-07330KL, AC1206FR-07330KL, RC1206FR-07330KL, CR1206-FX-3303ELF, CRCW1206330KFKEA, CRCW1206330KFKEAHP, or KTR18EZPF3303.

Q: What are the physical dimension differences between substitute parts?

A: All parts maintain the 1206 (3216 Metric) package type with length 3.10mm to 3.20mm and width 1.60mm. Height variations range from 0.60mm to 0.75mm seated maximum. These dimensional variations are within standard 1206 package tolerances and do not affect PCB footprint compatibility. Verify specific height requirements if clearance constraints exist in the application.

Q: How do I select between YAGEO, Bourns, Vishay Dale, Panasonic, and Rohm alternatives?

A: Selection depends on application requirements and supply chain considerations. For automotive applications, select AEC-Q200 certified parts (AC1206JR-07330KL, AC1206FR-07330KL, CRCW1206330KFKEA, CRCW1206330KFKEAHP, KTR18EZPF3303). For general industrial applications, all active production parts are suitable. Verify manufacturer availability, lead times, and pricing for your specific procurement requirements.

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